mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-14 08:31:23 +00:00
a732687548
- Removed #pragma warnings from cmdlib.h and fixed the places where they were still triggered. These #pragmas were responsible for >90% of the GCC warnings that were not listed in VC++. - Fixed one bug in the process: DSeqNode::m_Atten was never adjusted when the parameter handling of the sound functions for attenuation was changed. Changed m_Atten to a float and fixed the SNDSEQ parser to set proper values. Also added the option to specify attenuation with direct values in addition to the predefined names. SVN r1583 (trunk)
2857 lines
66 KiB
C++
2857 lines
66 KiB
C++
/*
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** thingdef_expression.cpp
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**
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** Expression evaluation
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**
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**---------------------------------------------------------------------------
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** Copyright 2008 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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** 4. When not used as part of ZDoom or a ZDoom derivative, this code will be
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** covered by the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or (at
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** your option) any later version.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "actor.h"
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#include "sc_man.h"
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#include "tarray.h"
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#include "templates.h"
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#include "cmdlib.h"
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#include "i_system.h"
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#include "m_random.h"
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#include "a_pickups.h"
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#include "thingdef.h"
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#include "p_lnspec.h"
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#include "doomstat.h"
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#include "thingdef_exp.h"
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#include "autosegs.h"
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int testglobalvar = 1337; // just for having one global variable to test with
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DEFINE_GLOBAL_VARIABLE(testglobalvar)
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// Accessible actor member variables
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DEFINE_MEMBER_VARIABLE(alpha, AActor)
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DEFINE_MEMBER_VARIABLE(angle, AActor)
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DEFINE_MEMBER_VARIABLE(args, AActor)
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DEFINE_MEMBER_VARIABLE(ceilingz, AActor)
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DEFINE_MEMBER_VARIABLE(floorz, AActor)
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DEFINE_MEMBER_VARIABLE(health, AActor)
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DEFINE_MEMBER_VARIABLE(pitch, AActor)
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DEFINE_MEMBER_VARIABLE(special, AActor)
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DEFINE_MEMBER_VARIABLE(tid, AActor)
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DEFINE_MEMBER_VARIABLE(TIDtoHate, AActor)
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DEFINE_MEMBER_VARIABLE(waterlevel, AActor)
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DEFINE_MEMBER_VARIABLE(x, AActor)
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DEFINE_MEMBER_VARIABLE(y, AActor)
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DEFINE_MEMBER_VARIABLE(z, AActor)
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DEFINE_MEMBER_VARIABLE(momx, AActor)
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DEFINE_MEMBER_VARIABLE(momy, AActor)
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DEFINE_MEMBER_VARIABLE(momz, AActor)
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DEFINE_MEMBER_VARIABLE(Damage, AActor)
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//==========================================================================
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//
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// EvalExpression
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// [GRB] Evaluates previously stored expression
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//
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//==========================================================================
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int EvalExpressionI (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetInt();
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}
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int EvalExpressionCol (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetColor();
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}
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FSoundID EvalExpressionSnd (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetSoundID();
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}
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double EvalExpressionF (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetFloat();
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}
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fixed_t EvalExpressionFix (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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ExpVal val = x->EvalExpression (self);
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switch (val.Type)
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{
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default:
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return 0;
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case VAL_Int:
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return val.Int << FRACBITS;
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case VAL_Float:
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return fixed_t(val.Float*FRACUNIT);
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}
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}
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FName EvalExpressionName (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetName();
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}
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const PClass * EvalExpressionClass (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetClass();
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}
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FState *EvalExpressionState (DWORD xi, AActor *self)
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{
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FxExpression *x = StateParams.Get(xi);
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if (x == NULL) return 0;
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return x->EvalExpression (self).GetState();
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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static ExpVal GetVariableValue (void *address, FExpressionType &type)
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{
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// NOTE: This cannot access native variables of types
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// char, short and float. These need to be redefined if necessary!
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ExpVal ret;
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switch(type.Type)
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{
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case VAL_Int:
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ret.Type = VAL_Int;
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ret.Int = *(int*)address;
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break;
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case VAL_Sound:
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ret.Type = VAL_Sound;
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ret.Int = *(FSoundID*)address;
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break;
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case VAL_Name:
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ret.Type = VAL_Name;
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ret.Int = *(FName*)address;
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break;
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case VAL_Color:
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ret.Type = VAL_Color;
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ret.Int = *(int*)address;
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break;
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case VAL_Bool:
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ret.Type = VAL_Int;
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ret.Int = *(bool*)address;
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break;
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case VAL_Float:
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ret.Type = VAL_Float;
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ret.Float = *(double*)address;
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break;
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case VAL_Fixed:
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ret.Type = VAL_Float;
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ret.Float = (*(fixed_t*)address) / 65536.;
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break;
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case VAL_Angle:
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ret.Type = VAL_Float;
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ret.Float = (*(angle_t*)address) * 90./ANGLE_90; // intentionally not using ANGLE_1
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break;
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case VAL_Object:
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case VAL_Class:
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ret.Type = ExpValType(type.Type); // object and class pointers don't retain their specific class information as values
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ret.pointer = *(void**)address;
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break;
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default:
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ret.Type = VAL_Unknown;
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ret.pointer = NULL;
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break;
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}
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return ret;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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ExpVal FxExpression::EvalExpression (AActor *self)
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{
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ScriptPosition.Message(MSG_ERROR, "Unresolved expression found");
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ExpVal val;
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val.Type = VAL_Int;
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val.Int = 0;
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return val;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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bool FxExpression::isConstant() const
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{
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return false;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxExpression *FxExpression::Resolve(FCompileContext &ctx)
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{
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isresolved = true;
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return this;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxExpression *FxExpression::ResolveAsBoolean(FCompileContext &ctx)
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{
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FxExpression *x = Resolve(ctx);
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if (x != NULL)
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{
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switch (x->ValueType.Type)
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{
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case VAL_Sound:
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case VAL_Color:
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case VAL_Name:
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x->ValueType = VAL_Int;
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break;
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default:
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break;
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}
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}
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return x;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FxExpression::RequestAddress()
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{
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ScriptPosition.Message(MSG_ERROR, "invalid dereference\n");
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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ExpVal FxConstant::EvalExpression (AActor *self)
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{
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return value;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxExpression *FxConstant::MakeConstant(PSymbol *sym, const FScriptPosition &pos)
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{
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FxExpression *x;
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if (sym->SymbolType == SYM_Const)
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{
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PSymbolConst *csym = static_cast<PSymbolConst*>(sym);
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switch(csym->ValueType)
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{
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case VAL_Int:
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x = new FxConstant(csym->Value, pos);
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break;
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case VAL_Float:
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x = new FxConstant(csym->Float, pos);
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break;
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default:
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pos.Message(MSG_ERROR, "Invalid constant '%s'\n", csym->SymbolName.GetChars());
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return NULL;
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}
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}
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else
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{
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pos.Message(MSG_ERROR, "'%s' is not a constant\n", sym->SymbolName.GetChars());
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x = NULL;
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}
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return x;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxIntCast::FxIntCast(FxExpression *x)
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: FxExpression(x->ScriptPosition)
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{
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basex=x;
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ValueType = VAL_Int;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxIntCast::~FxIntCast()
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{
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SAFE_DELETE(basex);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxExpression *FxIntCast::Resolve(FCompileContext &ctx)
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{
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CHECKRESOLVED();
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SAFE_RESOLVE(basex, ctx);
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if (basex->ValueType == VAL_Int)
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{
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FxExpression *x = basex;
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basex = NULL;
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delete this;
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return x;
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}
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else if (basex->ValueType == VAL_Float)
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{
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if (basex->isConstant())
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{
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ExpVal constval = basex->EvalExpression(NULL);
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FxExpression *x = new FxConstant(constval.GetInt(), ScriptPosition);
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delete this;
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return x;
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}
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return this;
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}
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else
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{
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ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
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delete this;
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return NULL;
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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ExpVal FxIntCast::EvalExpression (AActor *self)
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{
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ExpVal baseval = basex->EvalExpression(self);
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baseval.Int = baseval.GetInt();
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baseval.Type = VAL_Int;
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return baseval;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FxPlusSign::FxPlusSign(FxExpression *operand)
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: FxExpression(operand->ScriptPosition)
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{
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Operand=operand;
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}
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//==========================================================================
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|
//
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|
//
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|
//
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//==========================================================================
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|
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FxPlusSign::~FxPlusSign()
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{
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SAFE_DELETE(Operand);
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}
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|
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//==========================================================================
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|
//
|
|
//
|
|
//
|
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//==========================================================================
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|
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FxExpression *FxPlusSign::Resolve(FCompileContext& ctx)
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{
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CHECKRESOLVED();
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SAFE_RESOLVE(Operand, ctx);
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|
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if (Operand->ValueType.isNumeric())
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{
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FxExpression *e = Operand;
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Operand = NULL;
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delete this;
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return e;
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}
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else
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{
|
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ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
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delete this;
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return NULL;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxMinusSign::FxMinusSign(FxExpression *operand)
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: FxExpression(operand->ScriptPosition)
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|
{
|
|
Operand=operand;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxMinusSign::~FxMinusSign()
|
|
{
|
|
SAFE_DELETE(Operand);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxMinusSign::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(Operand, ctx);
|
|
|
|
if (Operand->ValueType.isNumeric())
|
|
{
|
|
if (Operand->isConstant())
|
|
{
|
|
ExpVal val = Operand->EvalExpression(NULL);
|
|
FxExpression *e = val.Type == VAL_Int?
|
|
new FxConstant(-val.Int, ScriptPosition) :
|
|
new FxConstant(-val.Float, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
ValueType = Operand->ValueType;
|
|
return this;
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxMinusSign::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
if (ValueType == VAL_Int)
|
|
{
|
|
ret.Int = -Operand->EvalExpression(self).GetInt();
|
|
ret.Type = VAL_Int;
|
|
}
|
|
else
|
|
{
|
|
ret.Float = -Operand->EvalExpression(self).GetFloat();
|
|
ret.Type = VAL_Float;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxUnaryNotBitwise::FxUnaryNotBitwise(FxExpression *operand)
|
|
: FxExpression(operand->ScriptPosition)
|
|
{
|
|
Operand=operand;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxUnaryNotBitwise::~FxUnaryNotBitwise()
|
|
{
|
|
SAFE_DELETE(Operand);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxUnaryNotBitwise::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(Operand, ctx);
|
|
|
|
if (Operand->ValueType == VAL_Float && ctx.lax)
|
|
{
|
|
// DECORATE allows floats here so cast them to int.
|
|
Operand = new FxIntCast(Operand);
|
|
Operand = Operand->Resolve(ctx);
|
|
if (Operand == NULL)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (Operand->ValueType != VAL_Int)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Integer type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (Operand->isConstant())
|
|
{
|
|
int result = ~Operand->EvalExpression(NULL).GetInt();
|
|
FxExpression *e = new FxConstant(result, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
ValueType = VAL_Int;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxUnaryNotBitwise::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
ret.Int = ~Operand->EvalExpression(self).GetInt();
|
|
ret.Type = VAL_Int;
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxUnaryNotBoolean::FxUnaryNotBoolean(FxExpression *operand)
|
|
: FxExpression(operand->ScriptPosition)
|
|
{
|
|
Operand=operand;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxUnaryNotBoolean::~FxUnaryNotBoolean()
|
|
{
|
|
SAFE_DELETE(Operand);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxUnaryNotBoolean::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (Operand)
|
|
{
|
|
Operand = Operand->ResolveAsBoolean(ctx);
|
|
}
|
|
if (!Operand)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (Operand->ValueType.isNumeric() || Operand->ValueType.isPointer())
|
|
{
|
|
if (Operand->isConstant())
|
|
{
|
|
bool result = !Operand->EvalExpression(NULL).GetBool();
|
|
FxExpression *e = new FxConstant(result, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
ValueType = VAL_Int;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxUnaryNotBoolean::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
ret.Int = !Operand->EvalExpression(self).GetBool();
|
|
ret.Type = VAL_Int;
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxBinary::FxBinary(int o, FxExpression *l, FxExpression *r)
|
|
: FxExpression(l->ScriptPosition)
|
|
{
|
|
Operator=o;
|
|
left=l;
|
|
right=r;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxBinary::~FxBinary()
|
|
{
|
|
SAFE_DELETE(left);
|
|
SAFE_DELETE(right);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
bool FxBinary::ResolveLR(FCompileContext& ctx, bool castnumeric)
|
|
{
|
|
RESOLVE(left, ctx);
|
|
RESOLVE(right, ctx);
|
|
if (!left || !right)
|
|
{
|
|
delete this;
|
|
return false;
|
|
}
|
|
|
|
if (left->ValueType == VAL_Int && right->ValueType == VAL_Int)
|
|
{
|
|
ValueType = VAL_Int;
|
|
}
|
|
else if (left->ValueType.isNumeric() && right->ValueType.isNumeric())
|
|
{
|
|
ValueType = VAL_Float;
|
|
}
|
|
else if (left->ValueType == VAL_Object && right->ValueType == VAL_Object)
|
|
{
|
|
ValueType = VAL_Object;
|
|
}
|
|
else if (left->ValueType == VAL_Class && right->ValueType == VAL_Class)
|
|
{
|
|
ValueType = VAL_Class;
|
|
}
|
|
else
|
|
{
|
|
ValueType = VAL_Unknown;
|
|
}
|
|
|
|
if (castnumeric)
|
|
{
|
|
// later!
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxAddSub::FxAddSub(int o, FxExpression *l, FxExpression *r)
|
|
: FxBinary(o, l, r)
|
|
{
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxAddSub::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (!ResolveLR(ctx, true)) return NULL;
|
|
|
|
if (!ValueType.isNumeric())
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (left->isConstant() && right->isConstant())
|
|
{
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v;
|
|
double v1 = left->EvalExpression(NULL).GetFloat();
|
|
double v2 = right->EvalExpression(NULL).GetFloat();
|
|
|
|
v = Operator == '+'? v1 + v2 :
|
|
Operator == '-'? v1 - v2 : 0;
|
|
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
else
|
|
{
|
|
int v;
|
|
int v1 = left->EvalExpression(NULL).GetInt();
|
|
int v2 = right->EvalExpression(NULL).GetInt();
|
|
|
|
v = Operator == '+'? v1 + v2 :
|
|
Operator == '-'? v1 - v2 : 0;
|
|
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
|
|
}
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxAddSub::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(self).GetFloat();
|
|
double v2 = right->EvalExpression(self).GetFloat();
|
|
|
|
ret.Type = VAL_Float;
|
|
ret.Float = Operator == '+'? v1 + v2 :
|
|
Operator == '-'? v1 - v2 : 0;
|
|
}
|
|
else
|
|
{
|
|
int v1 = left->EvalExpression(self).GetInt();
|
|
int v2 = right->EvalExpression(self).GetInt();
|
|
|
|
ret.Type = VAL_Int;
|
|
ret.Int = Operator == '+'? v1 + v2 :
|
|
Operator == '-'? v1 - v2 : 0;
|
|
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxMulDiv::FxMulDiv(int o, FxExpression *l, FxExpression *r)
|
|
: FxBinary(o, l, r)
|
|
{
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxMulDiv::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
|
|
if (!ResolveLR(ctx, true)) return NULL;
|
|
|
|
if (!ValueType.isNumeric())
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (left->isConstant() && right->isConstant())
|
|
{
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v;
|
|
double v1 = left->EvalExpression(NULL).GetFloat();
|
|
double v2 = right->EvalExpression(NULL).GetFloat();
|
|
|
|
if (Operator != '*' && v2 == 0)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Division by 0");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
v = Operator == '*'? v1 * v2 :
|
|
Operator == '/'? v1 / v2 :
|
|
Operator == '%'? fmod(v1, v2) : 0;
|
|
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
else
|
|
{
|
|
int v;
|
|
int v1 = left->EvalExpression(NULL).GetInt();
|
|
int v2 = right->EvalExpression(NULL).GetInt();
|
|
|
|
if (Operator != '*' && v2 == 0)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Division by 0");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
v = Operator == '*'? v1 * v2 :
|
|
Operator == '/'? v1 / v2 :
|
|
Operator == '%'? v1 % v2 : 0;
|
|
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
|
|
}
|
|
}
|
|
return this;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxMulDiv::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(self).GetFloat();
|
|
double v2 = right->EvalExpression(self).GetFloat();
|
|
|
|
if (Operator != '*' && v2 == 0)
|
|
{
|
|
I_Error("Division by 0");
|
|
}
|
|
|
|
ret.Type = VAL_Float;
|
|
ret.Float = Operator == '*'? v1 * v2 :
|
|
Operator == '/'? v1 / v2 :
|
|
Operator == '%'? fmod(v1, v2) : 0;
|
|
}
|
|
else
|
|
{
|
|
int v1 = left->EvalExpression(self).GetInt();
|
|
int v2 = right->EvalExpression(self).GetInt();
|
|
|
|
if (Operator != '*' && v2 == 0)
|
|
{
|
|
I_Error("Division by 0");
|
|
}
|
|
|
|
ret.Type = VAL_Int;
|
|
ret.Int = Operator == '*'? v1 * v2 :
|
|
Operator == '/'? v1 / v2 :
|
|
Operator == '%'? v1 % v2 : 0;
|
|
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxCompareRel::FxCompareRel(int o, FxExpression *l, FxExpression *r)
|
|
: FxBinary(o, l, r)
|
|
{
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxCompareRel::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (!ResolveLR(ctx, true)) return false;
|
|
|
|
if (!ValueType.isNumeric())
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (left->isConstant() && right->isConstant())
|
|
{
|
|
int v;
|
|
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(NULL).GetFloat();
|
|
double v2 = right->EvalExpression(NULL).GetFloat();
|
|
v = Operator == '<'? v1 < v2 :
|
|
Operator == '>'? v1 > v2 :
|
|
Operator == TK_Geq? v1 >= v2 :
|
|
Operator == TK_Leq? v1 <= v2 : 0;
|
|
}
|
|
else
|
|
{
|
|
int v1 = left->EvalExpression(NULL).GetInt();
|
|
int v2 = right->EvalExpression(NULL).GetInt();
|
|
v = Operator == '<'? v1 < v2 :
|
|
Operator == '>'? v1 > v2 :
|
|
Operator == TK_Geq? v1 >= v2 :
|
|
Operator == TK_Leq? v1 <= v2 : 0;
|
|
}
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
ValueType = VAL_Int;
|
|
return this;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxCompareRel::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
ret.Type = VAL_Int;
|
|
|
|
if (left->ValueType == VAL_Float || right->ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(self).GetFloat();
|
|
double v2 = right->EvalExpression(self).GetFloat();
|
|
ret.Int = Operator == '<'? v1 < v2 :
|
|
Operator == '>'? v1 > v2 :
|
|
Operator == TK_Geq? v1 >= v2 :
|
|
Operator == TK_Leq? v1 <= v2 : 0;
|
|
}
|
|
else
|
|
{
|
|
int v1 = left->EvalExpression(self).GetInt();
|
|
int v2 = right->EvalExpression(self).GetInt();
|
|
ret.Int = Operator == '<'? v1 < v2 :
|
|
Operator == '>'? v1 > v2 :
|
|
Operator == TK_Geq? v1 >= v2 :
|
|
Operator == TK_Leq? v1 <= v2 : 0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxCompareEq::FxCompareEq(int o, FxExpression *l, FxExpression *r)
|
|
: FxBinary(o, l, r)
|
|
{
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxCompareEq::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
|
|
if (!ResolveLR(ctx, true)) return false;
|
|
|
|
if (!left || !right)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (!ValueType.isNumeric() && !ValueType.isPointer())
|
|
{
|
|
if (left->ValueType.Type == right->ValueType.Type)
|
|
{
|
|
// compare other types?
|
|
if (left->ValueType == VAL_Sound || left->ValueType == VAL_Color || left->ValueType == VAL_Name)
|
|
{
|
|
left->ValueType = right->ValueType = VAL_Int;
|
|
goto cont;
|
|
}
|
|
}
|
|
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
cont:
|
|
if (left->isConstant() && right->isConstant())
|
|
{
|
|
int v;
|
|
|
|
if (ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(NULL).GetFloat();
|
|
double v2 = right->EvalExpression(NULL).GetFloat();
|
|
v = Operator == TK_Eq? v1 == v2 : v1 != v2;
|
|
}
|
|
else
|
|
{
|
|
int v1 = left->EvalExpression(NULL).GetInt();
|
|
int v2 = right->EvalExpression(NULL).GetInt();
|
|
v = Operator == TK_Eq? v1 == v2 : v1 != v2;
|
|
}
|
|
FxExpression *e = new FxConstant(v, ScriptPosition);
|
|
delete this;
|
|
return e;
|
|
}
|
|
ValueType = VAL_Int;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxCompareEq::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
ret.Type = VAL_Int;
|
|
|
|
if (left->ValueType == VAL_Float || right->ValueType == VAL_Float)
|
|
{
|
|
double v1 = left->EvalExpression(self).GetFloat();
|
|
double v2 = right->EvalExpression(self).GetFloat();
|
|
ret.Int = Operator == TK_Eq? v1 == v2 : v1 != v2;
|
|
}
|
|
else if (ValueType == VAL_Int)
|
|
{
|
|
int v1 = left->EvalExpression(self).GetInt();
|
|
int v2 = right->EvalExpression(self).GetInt();
|
|
ret.Int = Operator == TK_Eq? v1 == v2 : v1 != v2;
|
|
}
|
|
else
|
|
{
|
|
// Implement pointer comparison
|
|
ret.Int = 0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxBinaryInt::FxBinaryInt(int o, FxExpression *l, FxExpression *r)
|
|
: FxBinary(o, l, r)
|
|
{
|
|
ValueType = VAL_Int;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxBinaryInt::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (!ResolveLR(ctx, false)) return false;
|
|
|
|
if (ctx.lax && ValueType == VAL_Float)
|
|
{
|
|
// For DECORATE which allows floats here.
|
|
if (left->ValueType != VAL_Int)
|
|
{
|
|
left = new FxIntCast(left);
|
|
left = left->Resolve(ctx);
|
|
}
|
|
if (right->ValueType != VAL_Int)
|
|
{
|
|
right = new FxIntCast(right);
|
|
right = left->Resolve(ctx);
|
|
}
|
|
if (left == NULL || right == NULL)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
ValueType = VAL_Int;
|
|
}
|
|
|
|
if (ValueType != VAL_Int)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Integer type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (left->isConstant() && right->isConstant())
|
|
{
|
|
int v1 = left->EvalExpression(NULL).GetInt();
|
|
int v2 = right->EvalExpression(NULL).GetInt();
|
|
|
|
FxExpression *e = new FxConstant(
|
|
Operator == TK_LShift? v1 << v2 :
|
|
Operator == TK_RShift? v1 >> v2 :
|
|
Operator == TK_URShift? int((unsigned int)(v1) >> v2) :
|
|
Operator == '&'? v1 & v2 :
|
|
Operator == '|'? v1 | v2 :
|
|
Operator == '^'? v1 ^ v2 : 0, ScriptPosition);
|
|
|
|
delete this;
|
|
return e;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxBinaryInt::EvalExpression (AActor *self)
|
|
{
|
|
int v1 = left->EvalExpression(self).GetInt();
|
|
int v2 = right->EvalExpression(self).GetInt();
|
|
|
|
ExpVal ret;
|
|
|
|
ret.Type = VAL_Int;
|
|
ret.Int =
|
|
Operator == TK_LShift? v1 << v2 :
|
|
Operator == TK_RShift? v1 >> v2 :
|
|
Operator == TK_URShift? int((unsigned int)(v1) >> v2) :
|
|
Operator == '&'? v1 & v2 :
|
|
Operator == '|'? v1 | v2 :
|
|
Operator == '^'? v1 ^ v2 : 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxBinaryLogical::FxBinaryLogical(int o, FxExpression *l, FxExpression *r)
|
|
: FxExpression(l->ScriptPosition)
|
|
{
|
|
Operator=o;
|
|
left=l;
|
|
right=r;
|
|
ValueType = VAL_Int;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxBinaryLogical::~FxBinaryLogical()
|
|
{
|
|
SAFE_DELETE(left);
|
|
SAFE_DELETE(right);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxBinaryLogical::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (left) left = left->ResolveAsBoolean(ctx);
|
|
if (right) right = right->ResolveAsBoolean(ctx);
|
|
if (!left || !right)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
int b_left=-1, b_right=-1;
|
|
|
|
if (left->isConstant()) b_left = left->EvalExpression(NULL).GetBool();
|
|
if (right->isConstant()) b_right = right->EvalExpression(NULL).GetBool();
|
|
|
|
// Do some optimizations. This will throw out all sub-expressions that are not
|
|
// needed to retrieve the final result.
|
|
if (Operator == TK_AndAnd)
|
|
{
|
|
if (b_left==0 || b_right==0)
|
|
{
|
|
FxExpression *x = new FxConstant(0, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
else if (b_left==1 && b_right==1)
|
|
{
|
|
FxExpression *x = new FxConstant(1, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
else if (b_left==1)
|
|
{
|
|
FxExpression *x = right;
|
|
right=NULL;
|
|
delete this;
|
|
return x;
|
|
}
|
|
else if (b_right==1)
|
|
{
|
|
FxExpression *x = left;
|
|
left=NULL;
|
|
delete this;
|
|
return x;
|
|
}
|
|
}
|
|
else if (Operator == TK_OrOr)
|
|
{
|
|
if (b_left==1 || b_right==1)
|
|
{
|
|
FxExpression *x = new FxConstant(1, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
if (b_left==0 && b_right==0)
|
|
{
|
|
FxExpression *x = new FxConstant(0, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
else if (b_left==0)
|
|
{
|
|
FxExpression *x = right;
|
|
right=NULL;
|
|
delete this;
|
|
return x;
|
|
}
|
|
else if (b_right==0)
|
|
{
|
|
FxExpression *x = left;
|
|
left=NULL;
|
|
delete this;
|
|
return x;
|
|
}
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxBinaryLogical::EvalExpression (AActor *self)
|
|
{
|
|
bool b_left = left->EvalExpression(self).GetBool();
|
|
ExpVal ret;
|
|
|
|
ret.Type = VAL_Int;
|
|
ret.Int = false;
|
|
|
|
if (Operator == TK_AndAnd)
|
|
{
|
|
ret.Int = (b_left && right->EvalExpression(self).GetBool());
|
|
}
|
|
else if (Operator == TK_OrOr)
|
|
{
|
|
ret.Int = (b_left || right->EvalExpression(self).GetBool());
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxConditional::FxConditional(FxExpression *c, FxExpression *t, FxExpression *f)
|
|
: FxExpression(c->ScriptPosition)
|
|
{
|
|
condition = c;
|
|
truex=t;
|
|
falsex=f;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxConditional::~FxConditional()
|
|
{
|
|
SAFE_DELETE(condition);
|
|
SAFE_DELETE(truex);
|
|
SAFE_DELETE(falsex);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxConditional::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (condition) condition = condition->ResolveAsBoolean(ctx);
|
|
RESOLVE(truex, ctx);
|
|
RESOLVE(falsex, ctx);
|
|
ABORT(condition && truex && falsex);
|
|
|
|
if (truex->ValueType == VAL_Int && falsex->ValueType == VAL_Int)
|
|
ValueType = VAL_Int;
|
|
else if (truex->ValueType.isNumeric() && falsex->ValueType.isNumeric())
|
|
ValueType = VAL_Float;
|
|
//else if (truex->ValueType != falsex->ValueType)
|
|
|
|
if (condition->isConstant())
|
|
{
|
|
ExpVal condval = condition->EvalExpression(NULL);
|
|
bool result = condval.GetBool();
|
|
|
|
FxExpression *e = result? truex:falsex;
|
|
delete (result? falsex:truex);
|
|
falsex = truex = NULL;
|
|
delete this;
|
|
return e;
|
|
}
|
|
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxConditional::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal condval = condition->EvalExpression(self);
|
|
bool result = condval.GetBool();
|
|
|
|
FxExpression *e = result? truex:falsex;
|
|
return e->EvalExpression(self);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
FxAbs::FxAbs(FxExpression *v)
|
|
: FxExpression(v->ScriptPosition)
|
|
{
|
|
val = v;
|
|
ValueType = v->ValueType;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxAbs::~FxAbs()
|
|
{
|
|
SAFE_DELETE(val);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxAbs::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(val, ctx);
|
|
|
|
|
|
if (!ValueType.isNumeric())
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (val->isConstant())
|
|
{
|
|
ExpVal value = val->EvalExpression(NULL);
|
|
switch (value.Type)
|
|
{
|
|
case VAL_Int:
|
|
value.Int = abs(value.Int);
|
|
break;
|
|
|
|
case VAL_Float:
|
|
value.Float = fabs(value.Float);
|
|
|
|
default:
|
|
// shouldn't happen
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
FxExpression *x = new FxConstant(value, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
ValueType = val->ValueType;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxAbs::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal value = val->EvalExpression(self);
|
|
switch (value.Type)
|
|
{
|
|
default:
|
|
case VAL_Int:
|
|
value.Int = abs(value.Int);
|
|
break;
|
|
|
|
case VAL_Float:
|
|
value.Float = fabs(value.Float);
|
|
break;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
FxRandom::FxRandom(FRandom * r, FxExpression *mi, FxExpression *ma, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
if (mi != NULL && ma != NULL)
|
|
{
|
|
min = new FxIntCast(mi);
|
|
max = new FxIntCast(ma);
|
|
}
|
|
else min = max = NULL;
|
|
rng = r;
|
|
ValueType = VAL_Int;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxRandom::~FxRandom()
|
|
{
|
|
SAFE_DELETE(min);
|
|
SAFE_DELETE(max);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxRandom::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (min && max)
|
|
{
|
|
RESOLVE(min, ctx);
|
|
RESOLVE(max, ctx);
|
|
ABORT(min && max);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxRandom::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal val;
|
|
val.Type = VAL_Int;
|
|
|
|
if (min != NULL && max != NULL)
|
|
{
|
|
int minval = min->EvalExpression (self).GetInt();
|
|
int maxval = max->EvalExpression (self).GetInt();
|
|
|
|
|
|
if (maxval < minval)
|
|
{
|
|
swap (maxval, minval);
|
|
}
|
|
|
|
val.Int = (*rng)(maxval - minval + 1) + minval;
|
|
}
|
|
else
|
|
{
|
|
val.Int = (*rng)();
|
|
}
|
|
return val;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxRandom2::FxRandom2(FRandom *r, FxExpression *m, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
rng = r;
|
|
if (m) mask = new FxIntCast(m);
|
|
else mask = new FxConstant(-1, pos);
|
|
ValueType = VAL_Int;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxRandom2::~FxRandom2()
|
|
{
|
|
SAFE_DELETE(mask);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxRandom2::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(mask, ctx);
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxRandom2::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal maskval = mask->EvalExpression(self);
|
|
int imaskval = maskval.GetInt();
|
|
|
|
maskval.Type = VAL_Int;
|
|
maskval.Int = rng->Random2(imaskval);
|
|
return maskval;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxIdentifier::FxIdentifier(FName name, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
Identifier = name;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxIdentifier::Resolve(FCompileContext& ctx)
|
|
{
|
|
PSymbol * sym;
|
|
FxExpression *newex = NULL;
|
|
//FBaseCVar * cv = NULL;
|
|
//FString s;
|
|
int num;
|
|
//const PClass *Class;
|
|
|
|
CHECKRESOLVED();
|
|
// see if the current class (if valid) defines something with this name.
|
|
if ((sym = ctx.FindInClass(Identifier)) != NULL)
|
|
{
|
|
if (sym->SymbolType == SYM_Const)
|
|
{
|
|
ScriptPosition.Message(MSG_DEBUGLOG, "Resolving name '%s' as class constant\n", Identifier.GetChars());
|
|
newex = FxConstant::MakeConstant(sym, ScriptPosition);
|
|
}
|
|
else if (sym->SymbolType == SYM_Variable)
|
|
{
|
|
PSymbolVariable *vsym = static_cast<PSymbolVariable*>(sym);
|
|
ScriptPosition.Message(MSG_DEBUGLOG, "Resolving name '%s' as member variable, index %d\n", Identifier.GetChars(), vsym->offset);
|
|
newex = new FxClassMember((new FxSelf(ScriptPosition))->Resolve(ctx), vsym, ScriptPosition);
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Invalid member identifier '%s'\n", Identifier.GetChars());
|
|
}
|
|
}
|
|
// now check the global identifiers.
|
|
else if ((sym = ctx.FindGlobal(Identifier)) != NULL)
|
|
{
|
|
if (sym->SymbolType == SYM_Const)
|
|
{
|
|
ScriptPosition.Message(MSG_DEBUGLOG, "Resolving name '%s' as global constant\n", Identifier.GetChars());
|
|
newex = FxConstant::MakeConstant(sym, ScriptPosition);
|
|
}
|
|
else if (sym->SymbolType == SYM_Variable) // global variables will always be native
|
|
{
|
|
PSymbolVariable *vsym = static_cast<PSymbolVariable*>(sym);
|
|
ScriptPosition.Message(MSG_DEBUGLOG, "Resolving name '%s' as global variable, address %d\n", Identifier.GetChars(), vsym->offset);
|
|
newex = new FxGlobalVariable(vsym, ScriptPosition);
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Invalid global identifier '%s'\n", Identifier.GetChars());
|
|
}
|
|
}
|
|
/*
|
|
else if ((Class = PClass::FindClass(Identifier)))
|
|
{
|
|
pos.Message(MSG_DEBUGLOG, "Resolving name '%s' as class name\n", Identifier.GetChars());
|
|
newex = new FxClassType(Class, ScriptPosition);
|
|
}
|
|
}
|
|
*/
|
|
|
|
// also check for CVars
|
|
/*
|
|
else if ((cv = FindCVar(Identifier, NULL)) != NULL)
|
|
{
|
|
CLOG(CL_RESOLVE, LPrintf("Resolving name '%s' as cvar\n", Identifier.GetChars()));
|
|
newex = new FxCVar(cv, ScriptPosition);
|
|
}
|
|
*/
|
|
// amd line specials
|
|
else if ((num = P_FindLineSpecial(Identifier, NULL, NULL)))
|
|
{
|
|
ScriptPosition.Message(MSG_DEBUGLOG, "Resolving name '%s' as line special %d\n", Identifier.GetChars(), num);
|
|
newex = new FxConstant(num, ScriptPosition);
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Unknown identifier '%s'", Identifier.GetChars());
|
|
newex = new FxConstant(0, ScriptPosition);
|
|
}
|
|
delete this;
|
|
return newex? newex->Resolve(ctx) : NULL;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxSelf::FxSelf(const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxSelf::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (!ctx.cls)
|
|
{
|
|
// can't really happen with DECORATE's expression evaluator.
|
|
ScriptPosition.Message(MSG_ERROR, "self used outside of a member function");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
ValueType = ctx.cls;
|
|
ValueType.Type = VAL_Object;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxSelf::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
ret.Type = VAL_Object;
|
|
ret.pointer = self;
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxGlobalVariable::FxGlobalVariable(PSymbolVariable *mem, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
var = mem;
|
|
AddressRequested = false;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FxGlobalVariable::RequestAddress()
|
|
{
|
|
AddressRequested = true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxGlobalVariable::Resolve(FCompileContext&)
|
|
{
|
|
CHECKRESOLVED();
|
|
switch (var->ValueType.Type)
|
|
{
|
|
case VAL_Int:
|
|
case VAL_Bool:
|
|
ValueType = VAL_Int;
|
|
break;
|
|
|
|
case VAL_Float:
|
|
case VAL_Fixed:
|
|
case VAL_Angle:
|
|
ValueType = VAL_Float;
|
|
|
|
case VAL_Object:
|
|
case VAL_Class:
|
|
ValueType = var->ValueType;
|
|
break;
|
|
|
|
default:
|
|
ScriptPosition.Message(MSG_ERROR, "Invalid type for global variable");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxGlobalVariable::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
|
|
if (!AddressRequested)
|
|
{
|
|
ret = GetVariableValue((void*)var->offset, var->ValueType);
|
|
}
|
|
else
|
|
{
|
|
ret.pointer = (void*)var->offset;
|
|
ret.Type = VAL_Pointer;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxClassMember::FxClassMember(FxExpression *x, PSymbolVariable* mem, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
classx = x;
|
|
membervar = mem;
|
|
AddressRequested = false;
|
|
//if (classx->IsDefaultObject()) Readonly=true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxClassMember::~FxClassMember()
|
|
{
|
|
SAFE_DELETE(classx);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FxClassMember::RequestAddress()
|
|
{
|
|
AddressRequested = true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxClassMember::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(classx, ctx);
|
|
|
|
if (classx->ValueType != VAL_Object && classx->ValueType != VAL_Class)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Member variable requires a class or object");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
switch (membervar->ValueType.Type)
|
|
{
|
|
case VAL_Int:
|
|
case VAL_Bool:
|
|
ValueType = VAL_Int;
|
|
break;
|
|
|
|
case VAL_Float:
|
|
case VAL_Fixed:
|
|
case VAL_Angle:
|
|
ValueType = VAL_Float;
|
|
break;
|
|
|
|
case VAL_Object:
|
|
case VAL_Class:
|
|
case VAL_Array:
|
|
ValueType = membervar->ValueType;
|
|
break;
|
|
|
|
default:
|
|
ScriptPosition.Message(MSG_ERROR, "Invalid type for member variable %s", membervar->SymbolName.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxClassMember::EvalExpression (AActor *self)
|
|
{
|
|
char *object = NULL;
|
|
if (classx->ValueType == VAL_Class)
|
|
{
|
|
// not implemented yet
|
|
}
|
|
else
|
|
{
|
|
object = classx->EvalExpression(self).GetPointer<char>();
|
|
}
|
|
if (object == NULL)
|
|
{
|
|
I_Error("Accessing member variable without valid object");
|
|
}
|
|
|
|
ExpVal ret;
|
|
|
|
if (!AddressRequested)
|
|
{
|
|
ret = GetVariableValue(object + membervar->offset, membervar->ValueType);
|
|
}
|
|
else
|
|
{
|
|
ret.pointer = object + membervar->offset;
|
|
ret.Type = VAL_Pointer;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxArrayElement::FxArrayElement(FxExpression *base, FxExpression *_index)
|
|
:FxExpression(base->ScriptPosition)
|
|
{
|
|
Array=base;
|
|
index = _index;
|
|
//AddressRequested = false;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxArrayElement::~FxArrayElement()
|
|
{
|
|
SAFE_DELETE(Array);
|
|
SAFE_DELETE(index);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
/*
|
|
void FxArrayElement::RequestAddress()
|
|
{
|
|
AddressRequested = true;
|
|
}
|
|
*/
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxArrayElement::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(Array,ctx);
|
|
SAFE_RESOLVE(index,ctx);
|
|
|
|
if (index->ValueType == VAL_Float && ctx.lax)
|
|
{
|
|
// DECORATE allows floats here so cast them to int.
|
|
index = new FxIntCast(index);
|
|
index = index->Resolve(ctx);
|
|
if (index == NULL)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
if (index->ValueType != VAL_Int)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Array index must be integer");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (Array->ValueType != VAL_Array)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "'[]' can only be used with arrays.");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
ValueType = Array->ValueType.GetBaseType();
|
|
if (ValueType != VAL_Int)
|
|
{
|
|
// int arrays only for now
|
|
ScriptPosition.Message(MSG_ERROR, "Only integer arrays are supported.");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
Array->RequestAddress();
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// in its current state this won't be able to do more than handle the args array.
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxArrayElement::EvalExpression (AActor *self)
|
|
{
|
|
int * arraystart = Array->EvalExpression(self).GetPointer<int>();
|
|
int indexval = index->EvalExpression(self).GetInt();
|
|
|
|
if (indexval < 0 || indexval >= Array->ValueType.size)
|
|
{
|
|
I_Error("Array index out of bounds");
|
|
}
|
|
|
|
ExpVal ret;
|
|
|
|
ret.Int = arraystart[indexval];
|
|
ret.Type = VAL_Int;
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxFunctionCall::FxFunctionCall(FxExpression *self, FName methodname, FArgumentList *args, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
Self = self;
|
|
MethodName = methodname;
|
|
ArgList = args;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxFunctionCall::~FxFunctionCall()
|
|
{
|
|
SAFE_DELETE(Self);
|
|
SAFE_DELETE(ArgList);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxFunctionCall::Resolve(FCompileContext& ctx)
|
|
{
|
|
// There's currently only 2 global functions.
|
|
// This will have to change later!
|
|
if (MethodName == NAME_Sin || MethodName == NAME_Cos)
|
|
{
|
|
if (Self != NULL)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Global variables cannot have a self pointer");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
FxExpression *x = new FxGlobalFunctionCall(MethodName, ArgList, ScriptPosition);
|
|
ArgList = NULL;
|
|
delete this;
|
|
return x->Resolve(ctx);
|
|
}
|
|
|
|
int min, max;
|
|
int special = P_FindLineSpecial(MethodName.GetChars(), &min, &max);
|
|
if (special > 0 && min >= 0)
|
|
{
|
|
int paramcount = ArgList? ArgList->Size() : 0;
|
|
if (paramcount < min)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Not enough parameters for '%s' (expected %d, got %d)",
|
|
MethodName.GetChars(), min, paramcount);
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (paramcount > max)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "too many parameters for '%s' (expected %d, got %d)",
|
|
MethodName.GetChars(), max, paramcount);
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
FxExpression *x = new FxActionSpecialCall(Self, special, ArgList, ScriptPosition);
|
|
ArgList = NULL;
|
|
delete this;
|
|
return x->Resolve(ctx);
|
|
}
|
|
|
|
ScriptPosition.Message(MSG_ERROR, "Call to unknown function '%s'", MethodName.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxActionSpecialCall::FxActionSpecialCall(FxExpression *self, int special, FArgumentList *args, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
Self = self;
|
|
Special = special;
|
|
ArgList = args;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxActionSpecialCall::~FxActionSpecialCall()
|
|
{
|
|
SAFE_DELETE(Self);
|
|
SAFE_DELETE(ArgList);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxActionSpecialCall::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
bool failed = false;
|
|
|
|
if (ArgList != NULL)
|
|
{
|
|
for(unsigned i = 0; i < ArgList->Size(); i++)
|
|
{
|
|
(*ArgList)[i] = (*ArgList)[i]->Resolve(ctx);
|
|
if ((*ArgList)[i] == NULL) failed = true;
|
|
if ((*ArgList)[i]->ValueType != VAL_Int)
|
|
{
|
|
if (ctx.lax && ((*ArgList)[i]->ValueType == VAL_Float))
|
|
{
|
|
(*ArgList)[i] = new FxIntCast((*ArgList)[i]);
|
|
}
|
|
else
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Integer expected for parameter %d", i);
|
|
failed = true;
|
|
}
|
|
}
|
|
}
|
|
if (failed)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
ValueType = VAL_Int;
|
|
return this;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxActionSpecialCall::EvalExpression (AActor *self)
|
|
{
|
|
int v[5] = {0,0,0,0,0};
|
|
|
|
if (Self != NULL)
|
|
{
|
|
self = Self->EvalExpression(self).GetPointer<AActor>();
|
|
}
|
|
|
|
if (ArgList != NULL)
|
|
{
|
|
for(unsigned i = 0; i < ArgList->Size(); i++)
|
|
{
|
|
v[i] = (*ArgList)[i]->EvalExpression(self).GetInt();
|
|
}
|
|
}
|
|
ExpVal ret;
|
|
ret.Type = VAL_Int;
|
|
ret.Int = LineSpecials[Special](NULL, self, false, v[0], v[1], v[2], v[3], v[4]);
|
|
return ret;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxGlobalFunctionCall::FxGlobalFunctionCall(FName fname, FArgumentList *args, const FScriptPosition &pos)
|
|
: FxExpression(pos)
|
|
{
|
|
Name = fname;
|
|
ArgList = args;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxGlobalFunctionCall::~FxGlobalFunctionCall()
|
|
{
|
|
SAFE_DELETE(ArgList);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// // so far just a quick hack to handle sin and cos
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxGlobalFunctionCall::Resolve(FCompileContext& ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
|
|
if (ArgList == NULL || ArgList->Size() != 1)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "%s only has one parameter", Name.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
(*ArgList)[0] = (*ArgList)[0]->Resolve(ctx);
|
|
if ((*ArgList)[0] == NULL)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (!(*ArgList)[0]->ValueType.isNumeric())
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "numeric value expected for parameter");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
ValueType = VAL_Float;
|
|
return this;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxGlobalFunctionCall::EvalExpression (AActor *self)
|
|
{
|
|
double v = (*ArgList)[0]->EvalExpression(self).GetFloat();
|
|
ExpVal ret;
|
|
ret.Type = VAL_Float;
|
|
|
|
// shall we use the CRT's sin and cos functions?
|
|
angle_t angle = angle_t(v * ANGLE_90/90.);
|
|
if (Name == NAME_Sin) ret.Float = FIXED2FLOAT (finesine[angle>>ANGLETOFINESHIFT]);
|
|
else ret.Float = FIXED2FLOAT (finecosine[angle>>ANGLETOFINESHIFT]);
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxClassTypeCast::FxClassTypeCast(const PClass *dtype, FxExpression *x)
|
|
: FxExpression(x->ScriptPosition)
|
|
{
|
|
desttype = dtype;
|
|
basex=x;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxClassTypeCast::~FxClassTypeCast()
|
|
{
|
|
SAFE_DELETE(basex);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxClassTypeCast::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
SAFE_RESOLVE(basex, ctx);
|
|
|
|
if (basex->ValueType != VAL_Name)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Cannot convert to class type");
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
|
|
if (basex->isConstant())
|
|
{
|
|
FName clsname = basex->EvalExpression(NULL).GetName();
|
|
const PClass *cls = NULL;
|
|
|
|
if (clsname != NAME_None || !ctx.isconst)
|
|
{
|
|
cls= PClass::FindClass(clsname);
|
|
if (cls == NULL)
|
|
{
|
|
if (!ctx.lax)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR,"Unknown class name '%s'", clsname.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
// Since this happens in released WADs it must pass without a terminal error... :(
|
|
ScriptPosition.Message(MSG_WARNING,
|
|
"Unknown class name '%s'",
|
|
clsname.GetChars(), desttype->TypeName.GetChars());
|
|
}
|
|
else
|
|
{
|
|
if (!cls->IsDescendantOf(desttype))
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR,"class '%s' is not compatible with '%s'", clsname.GetChars(), desttype->TypeName.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
ScriptPosition.Message(MSG_DEBUG,"resolving '%s' as class name", clsname.GetChars());
|
|
}
|
|
FxExpression *x = new FxConstant(cls, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxClassTypeCast::EvalExpression (AActor *self)
|
|
{
|
|
FName clsname = basex->EvalExpression(NULL).GetName();
|
|
const PClass *cls = PClass::FindClass(clsname);
|
|
|
|
if (!cls->IsDescendantOf(desttype))
|
|
{
|
|
Printf("class '%s' is not compatible with '%s'", clsname.GetChars(), desttype->TypeName.GetChars());
|
|
cls = NULL;
|
|
}
|
|
|
|
ExpVal ret;
|
|
ret.Type = VAL_Class;
|
|
ret.pointer = (void*)cls;
|
|
return ret;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxStateByIndex::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (ctx.cls->ActorInfo == NULL || ctx.cls->ActorInfo->NumOwnedStates == 0)
|
|
{
|
|
// This can't really happen
|
|
assert(false);
|
|
}
|
|
if (ctx.cls->ActorInfo->NumOwnedStates <= index)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "%s: Attempt to jump to non existing state index %d",
|
|
ctx.cls->TypeName.GetChars(), index);
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
FxExpression *x = new FxConstant(ctx.cls->ActorInfo->OwnedStates + index, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxMultiNameState::FxMultiNameState(const char *_statestring, const FScriptPosition &pos)
|
|
:FxExpression(pos)
|
|
{
|
|
FName scopename;
|
|
FString statestring = _statestring;
|
|
int scopeindex = statestring.IndexOf("::");
|
|
|
|
if (scopeindex >= 0)
|
|
{
|
|
scopename = FName(statestring, scopeindex, false);
|
|
statestring = statestring.Right(statestring.Len() - scopeindex - 2);
|
|
}
|
|
else
|
|
{
|
|
scopename = NULL;
|
|
}
|
|
names = MakeStateNameList(statestring);
|
|
names.Insert(0, scopename);
|
|
scope = NULL;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FxMultiNameState::Resolve(FCompileContext &ctx)
|
|
{
|
|
CHECKRESOLVED();
|
|
if (names[0] == NAME_None)
|
|
{
|
|
scope = NULL;
|
|
}
|
|
else if (names[0] == NAME_Super)
|
|
{
|
|
scope = ctx.cls->ParentClass;
|
|
}
|
|
else
|
|
{
|
|
scope = PClass::FindClass(names[0]);
|
|
if (scope == NULL)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "Unknown class '%s' in state label", names[0].GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
else if (!scope->IsDescendantOf(ctx.cls))
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "'%s' is not an ancestor of '%s'", names[0].GetChars(),ctx.cls->TypeName.GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
}
|
|
if (scope != NULL)
|
|
{
|
|
FState *destination = NULL;
|
|
// If the label is class specific we can resolve it right here
|
|
if (names[1] != NAME_None)
|
|
{
|
|
if (scope->ActorInfo == NULL)
|
|
{
|
|
ScriptPosition.Message(MSG_ERROR, "'%s' has no actorinfo", names[0].GetChars());
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
destination = scope->ActorInfo->FindState(names.Size()-1, &names[1], false);
|
|
if (destination == NULL)
|
|
{
|
|
ScriptPosition.Message(ctx.lax? MSG_WARNING:MSG_ERROR, "Unknown state jump destination");
|
|
if (!ctx.lax)
|
|
{
|
|
delete this;
|
|
return NULL;
|
|
}
|
|
return this;
|
|
}
|
|
}
|
|
FxExpression *x = new FxConstant(destination, ScriptPosition);
|
|
delete this;
|
|
return x;
|
|
}
|
|
names.Delete(0);
|
|
names.ShrinkToFit();
|
|
ValueType = VAL_State;
|
|
return this;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
ExpVal FxMultiNameState::EvalExpression (AActor *self)
|
|
{
|
|
ExpVal ret;
|
|
ret.Type = VAL_State;
|
|
ret.pointer = self->GetClass()->ActorInfo->FindState(names.Size(), &names[0]);
|
|
if (ret.pointer == NULL)
|
|
{
|
|
const char *dot="";
|
|
Printf("Jump target '");
|
|
for (unsigned int i=0;i<names.Size();i++)
|
|
{
|
|
Printf("%s%s", dot, names[i].GetChars());
|
|
dot = ".";
|
|
}
|
|
Printf("' not found in %s\n", self->GetClass()->TypeName.GetChars());
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// NOTE: I don't expect any of the following to survive Doomscript ;)
|
|
//
|
|
//==========================================================================
|
|
|
|
FStateExpressions StateParams;
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FStateExpressions::~FStateExpressions()
|
|
{
|
|
for(unsigned i=0; i<Size(); i++)
|
|
{
|
|
if (expressions[i].expr != NULL && !expressions[i].cloned)
|
|
{
|
|
delete expressions[i].expr;
|
|
}
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
int FStateExpressions::Add(FxExpression *x, const PClass *o, bool c)
|
|
{
|
|
int idx = expressions.Reserve(1);
|
|
FStateExpression &exp = expressions[idx];
|
|
exp.expr = x;
|
|
exp.owner = o;
|
|
exp.constant = c;
|
|
exp.cloned = false;
|
|
return idx;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
int FStateExpressions::Reserve(int num, const PClass *cls)
|
|
{
|
|
int idx = expressions.Reserve(num);
|
|
FStateExpression *exp = &expressions[idx];
|
|
for(int i=0; i<num; i++)
|
|
{
|
|
exp[i].expr = NULL;
|
|
exp[i].owner = cls;
|
|
exp[i].constant = false;
|
|
exp[i].cloned = false;
|
|
}
|
|
return idx;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FStateExpressions::Set(int num, FxExpression *x)
|
|
{
|
|
if (num >= 0 && num < int(Size()))
|
|
{
|
|
assert(expressions[num].expr == NULL || expressions[num].cloned);
|
|
expressions[num].expr = x;
|
|
expressions[num].cloned = false;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FStateExpressions::Copy(int dest, int src, int cnt)
|
|
{
|
|
for(int i=0; i<cnt; i++)
|
|
{
|
|
// For now set only a reference because these expressions may change when being resolved
|
|
expressions[dest+i].expr = (FxExpression*)intptr_t(src+i);
|
|
expressions[dest+i].cloned = true;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
int FStateExpressions::ResolveAll()
|
|
{
|
|
int errorcount = 0;
|
|
|
|
FCompileContext ctx;
|
|
ctx.lax = true;
|
|
for(unsigned i=0; i<Size(); i++)
|
|
{
|
|
if (expressions[i].cloned)
|
|
{
|
|
// Now that everything coming before has been resolved we may copy the actual pointer.
|
|
unsigned ii = unsigned((intptr_t)expressions[i].expr);
|
|
expressions[i].expr = expressions[ii].expr;
|
|
}
|
|
else if (expressions[i].expr != NULL)
|
|
{
|
|
ctx.cls = expressions[i].owner;
|
|
ctx.isconst = expressions[i].constant;
|
|
expressions[i].expr = expressions[i].expr->Resolve(ctx);
|
|
if (expressions[i].expr == NULL)
|
|
{
|
|
errorcount++;
|
|
}
|
|
else if (expressions[i].constant && !expressions[i].expr->isConstant())
|
|
{
|
|
expressions[i].expr->ScriptPosition.Message(MSG_ERROR, "Constant expression expected");
|
|
errorcount++;
|
|
}
|
|
}
|
|
}
|
|
|
|
for(unsigned i=0; i<Size(); i++)
|
|
{
|
|
if (expressions[i].expr != NULL)
|
|
{
|
|
if (!expressions[i].expr->isresolved)
|
|
{
|
|
expressions[i].expr->ScriptPosition.Message(MSG_ERROR, "Expression at index %d not resolved\n", i);
|
|
errorcount++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return errorcount;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FxExpression *FStateExpressions::Get(int num)
|
|
{
|
|
if (num >= 0 && num < int(Size()))
|
|
return expressions[num].expr;
|
|
return NULL;
|
|
}
|
|
|