mirror of
https://github.com/ZDoom/qzdoom-gpl.git
synced 2024-12-11 21:00:53 +00:00
dabed04d2a
- removed all references to Doom specific headers from xs_Float.h and cmath.h.
788 lines
19 KiB
C++
788 lines
19 KiB
C++
/*
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** p_things.cpp
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** ACS-accessible thing utilities
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2007 Randy Heit
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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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**
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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 "doomtype.h"
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#include "p_local.h"
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#include "info.h"
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#include "s_sound.h"
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#include "tables.h"
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#include "doomstat.h"
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#include "m_random.h"
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#include "c_console.h"
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#include "c_dispatch.h"
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#include "a_sharedglobal.h"
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#include "gi.h"
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#include "templates.h"
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#include "g_level.h"
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#include "v_text.h"
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#include "i_system.h"
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#include "d_player.h"
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#include "r_utility.h"
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#include "p_spec.h"
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#include "math/cmath.h"
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// Set of spawnable things for the Thing_Spawn and Thing_Projectile specials.
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FClassMap SpawnableThings;
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static FRandom pr_leadtarget ("LeadTarget");
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bool P_Thing_Spawn (int tid, AActor *source, int type, DAngle angle, bool fog, int newtid)
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{
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int rtn = 0;
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PClassActor *kind;
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AActor *spot, *mobj;
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FActorIterator iterator (tid);
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kind = P_GetSpawnableType(type);
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if (kind == NULL)
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return false;
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// Handle decorate replacements.
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kind = kind->GetReplacement();
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if ((GetDefaultByType(kind)->flags3 & MF3_ISMONSTER) &&
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((dmflags & DF_NO_MONSTERS) || (level.flags2 & LEVEL2_NOMONSTERS)))
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return false;
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if (tid == 0)
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{
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spot = source;
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}
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else
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{
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spot = iterator.Next();
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}
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while (spot != NULL)
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{
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mobj = Spawn (kind, spot->Pos(), ALLOW_REPLACE);
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if (mobj != NULL)
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{
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ActorFlags2 oldFlags2 = mobj->flags2;
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mobj->flags2 |= MF2_PASSMOBJ;
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if (P_TestMobjLocation (mobj))
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{
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rtn++;
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mobj->Angles.Yaw = (angle != 1000000. ? angle : spot->Angles.Yaw);
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if (fog)
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{
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P_SpawnTeleportFog(mobj, spot->PosPlusZ(TELEFOGHEIGHT), false, true);
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}
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if (mobj->flags & MF_SPECIAL)
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mobj->flags |= MF_DROPPED; // Don't respawn
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mobj->tid = newtid;
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mobj->AddToHash ();
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mobj->flags2 = oldFlags2;
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}
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else
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{
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// If this is a monster, subtract it from the total monster
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// count, because it already added to it during spawning.
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mobj->ClearCounters();
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mobj->Destroy ();
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}
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}
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spot = iterator.Next();
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}
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return rtn != 0;
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}
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// [BC] Added
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// [RH] Fixed
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bool P_MoveThing(AActor *source, const DVector3 &pos, bool fog)
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{
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DVector3 old = source->Pos();
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source->SetOrigin (pos, true);
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if (P_TestMobjLocation (source))
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{
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if (fog)
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{
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P_SpawnTeleportFog(source, pos, false, true);
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P_SpawnTeleportFog(source, old, true, true);
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}
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source->ClearInterpolation();
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if (source == players[consoleplayer].camera)
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{
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R_ResetViewInterpolation();
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}
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return true;
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}
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else
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{
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source->SetOrigin (old, true);
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return false;
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}
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}
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bool P_Thing_Move (int tid, AActor *source, int mapspot, bool fog)
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{
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AActor *target;
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if (tid != 0)
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{
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FActorIterator iterator1(tid);
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source = iterator1.Next();
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}
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FActorIterator iterator2 (mapspot);
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target = iterator2.Next ();
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if (source != NULL && target != NULL)
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{
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return P_MoveThing(source, target->Pos(), fog);
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}
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return false;
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}
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bool P_Thing_Projectile (int tid, AActor *source, int type, const char *type_name, DAngle angle,
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double speed, double vspeed, int dest, AActor *forcedest, int gravity, int newtid,
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bool leadTarget)
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{
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int rtn = 0;
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PClassActor *kind;
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AActor *spot, *mobj, *targ = forcedest;
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FActorIterator iterator (tid);
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int defflags3;
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if (type_name == NULL)
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{
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kind = P_GetSpawnableType(type);
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}
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else
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{
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kind = PClass::FindActor(type_name);
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}
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if (kind == NULL)
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{
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return false;
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}
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// Handle decorate replacements.
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kind = kind->GetReplacement();
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defflags3 = GetDefaultByType(kind)->flags3;
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if ((defflags3 & MF3_ISMONSTER) &&
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((dmflags & DF_NO_MONSTERS) || (level.flags2 & LEVEL2_NOMONSTERS)))
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return false;
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if (tid == 0)
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{
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spot = source;
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}
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else
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{
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spot = iterator.Next();
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}
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while (spot != NULL)
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{
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FActorIterator tit (dest);
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if (dest == 0 || (targ = tit.Next()))
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{
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do
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{
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double z = spot->Z();
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if (defflags3 & MF3_FLOORHUGGER)
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{
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z = ONFLOORZ;
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}
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else if (defflags3 & MF3_CEILINGHUGGER)
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{
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z = ONCEILINGZ;
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}
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else if (z != ONFLOORZ)
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{
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z -= spot->Floorclip;
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}
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mobj = Spawn (kind, spot->PosAtZ(z), ALLOW_REPLACE);
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if (mobj)
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{
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mobj->tid = newtid;
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mobj->AddToHash ();
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P_PlaySpawnSound(mobj, spot);
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if (gravity)
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{
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mobj->flags &= ~MF_NOGRAVITY;
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if (!(mobj->flags3 & MF3_ISMONSTER) && gravity == 1)
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{
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mobj->Gravity = 1./8;
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}
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}
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else
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{
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mobj->flags |= MF_NOGRAVITY;
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}
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mobj->target = spot;
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if (targ != NULL)
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{
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DVector3 aim = mobj->Vec3To(targ);
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aim.Z += targ->Height / 2;
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if (leadTarget && speed > 0 && !targ->Vel.isZero())
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{
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// Aiming at the target's position some time in the future
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// is basically just an application of the law of sines:
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// a/sin(A) = b/sin(B)
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// Thanks to all those on the notgod phorum for helping me
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// with the math. I don't think I would have thought of using
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// trig alone had I been left to solve it by myself.
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DVector3 tvel = targ->Vel;
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if (!(targ->flags & MF_NOGRAVITY) && targ->waterlevel < 3)
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{ // If the target is subject to gravity and not underwater,
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// assume that it isn't moving vertically. Thanks to gravity,
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// even if we did consider the vertical component of the target's
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// velocity, we would still miss more often than not.
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tvel.Z = 0.0;
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if (targ->Vel.X == 0 && targ->Vel.Y == 0)
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{
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goto nolead;
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}
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}
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double dist = aim.Length();
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double targspeed = tvel.Length();
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double ydotx = -aim | tvel;
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double a = g_acos (clamp (ydotx / targspeed / dist, -1.0, 1.0));
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double multiplier = double(pr_leadtarget.Random2())*0.1/255+1.1;
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double sinb = -clamp (targspeed*multiplier * g_sin(a) / speed, -1.0, 1.0);
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// Use the cross product of two of the triangle's sides to get a
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// rotation vector.
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DVector3 rv(tvel ^ aim);
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// The vector must be normalized.
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rv.MakeUnit();
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// Now combine the rotation vector with angle b to get a rotation matrix.
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DMatrix3x3 rm(rv, g_cos(g_asin(sinb)), sinb);
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// And multiply the original aim vector with the matrix to get a
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// new aim vector that leads the target.
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DVector3 aimvec = rm * aim;
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// And make the projectile follow that vector at the desired speed.
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mobj->Vel = aimvec * (speed / dist);
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mobj->AngleFromVel();
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}
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else
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{
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nolead:
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mobj->Angles.Yaw = mobj->AngleTo(targ);
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mobj->Vel = aim.Resized (speed);
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}
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if (mobj->flags2 & MF2_SEEKERMISSILE)
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{
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mobj->tracer = targ;
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}
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}
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else
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{
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mobj->Angles.Yaw = angle;
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mobj->VelFromAngle(speed);
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mobj->Vel.Z = vspeed;
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}
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// Set the missile's speed to reflect the speed it was spawned at.
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if (mobj->flags & MF_MISSILE)
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{
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mobj->Speed = mobj->VelToSpeed();
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}
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// Hugger missiles don't have any vertical velocity
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if (mobj->flags3 & (MF3_FLOORHUGGER|MF3_CEILINGHUGGER))
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{
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mobj->Vel.Z = 0;
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}
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if (mobj->flags & MF_SPECIAL)
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{
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mobj->flags |= MF_DROPPED;
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}
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if (mobj->flags & MF_MISSILE)
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{
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if (P_CheckMissileSpawn (mobj, spot->radius))
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{
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rtn = true;
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}
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}
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else if (!P_TestMobjLocation (mobj))
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{
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// If this is a monster, subtract it from the total monster
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// count, because it already added to it during spawning.
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mobj->ClearCounters();
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mobj->Destroy ();
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}
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else
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{
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// It spawned fine.
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rtn = 1;
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}
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}
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} while (dest != 0 && (targ = tit.Next()));
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}
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spot = iterator.Next();
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}
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return rtn != 0;
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}
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int P_Thing_Damage (int tid, AActor *whofor0, int amount, FName type)
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{
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FActorIterator iterator (tid);
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int count = 0;
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AActor *actor;
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actor = (tid == 0 ? whofor0 : iterator.Next());
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while (actor)
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{
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AActor *next = tid == 0 ? NULL : iterator.Next ();
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if (actor->flags & MF_SHOOTABLE)
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{
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if (amount > 0)
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{
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P_DamageMobj (actor, NULL, whofor0, amount, type);
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}
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else if (actor->health < actor->SpawnHealth())
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{
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actor->health -= amount;
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if (actor->health > actor->SpawnHealth())
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{
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actor->health = actor->SpawnHealth();
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}
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if (actor->player != NULL)
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{
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actor->player->health = actor->health;
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}
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}
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count++;
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}
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actor = next;
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}
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return count;
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}
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void P_RemoveThing(AActor * actor)
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{
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// Don't remove live players.
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if (actor->player == NULL || actor != actor->player->mo)
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{
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// Don't also remove owned inventory items
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if (actor->IsKindOf(RUNTIME_CLASS(AInventory)) && static_cast<AInventory*>(actor)->Owner != NULL) return;
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// be friendly to the level statistics. ;)
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actor->ClearCounters();
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actor->Destroy ();
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}
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}
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bool P_Thing_Raise(AActor *thing, AActor *raiser)
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{
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FState * RaiseState = thing->GetRaiseState();
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if (RaiseState == NULL)
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{
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return true; // monster doesn't have a raise state
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}
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AActor *info = thing->GetDefault ();
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thing->Vel.X = thing->Vel.Y = 0;
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// [RH] Check against real height and radius
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double oldheight = thing->Height;
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double oldradius = thing->radius;
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ActorFlags oldflags = thing->flags;
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thing->flags |= MF_SOLID;
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thing->Height = info->Height; // [RH] Use real height
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thing->radius = info->radius; // [RH] Use real radius
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if (!P_CheckPosition (thing, thing->Pos()))
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{
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thing->flags = oldflags;
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thing->radius = oldradius;
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thing->Height = oldheight;
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return false;
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}
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S_Sound (thing, CHAN_BODY, "vile/raise", 1, ATTN_IDLE);
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thing->Revive();
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if (raiser != NULL)
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{
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// Let's copy the friendliness of the one who raised it.
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thing->CopyFriendliness(raiser, false);
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}
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thing->SetState (RaiseState);
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return true;
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}
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bool P_Thing_CanRaise(AActor *thing)
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{
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FState * RaiseState = thing->GetRaiseState();
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if (RaiseState == NULL)
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{
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return false;
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}
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AActor *info = thing->GetDefault();
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// Check against real height and radius
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ActorFlags oldflags = thing->flags;
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double oldheight = thing->Height;
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double oldradius = thing->radius;
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thing->flags |= MF_SOLID;
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thing->Height = info->Height;
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thing->radius = info->radius;
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bool check = P_CheckPosition (thing, thing->Pos());
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// Restore checked properties
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thing->flags = oldflags;
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thing->radius = oldradius;
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thing->Height = oldheight;
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if (!check)
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{
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return false;
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}
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return true;
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}
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void P_Thing_SetVelocity(AActor *actor, const DVector3 &vec, bool add, bool setbob)
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{
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if (actor != NULL)
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{
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if (!add)
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{
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actor->Vel.Zero();
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if (actor->player != NULL) actor->player->Vel.Zero();
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}
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actor->Vel += vec;
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if (setbob && actor->player != NULL)
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{
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actor->player->Vel += vec.XY();
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}
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}
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}
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PClassActor *P_GetSpawnableType(int spawnnum)
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{
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if (spawnnum < 0)
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{ // A named arg from a UDMF map
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FName spawnname = FName(ENamedName(-spawnnum));
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if (spawnname.IsValidName())
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{
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return PClass::FindActor(spawnname);
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}
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}
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else
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{ // A numbered arg from a Hexen or UDMF map
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PClassActor **type = SpawnableThings.CheckKey(spawnnum);
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if (type != NULL)
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{
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return *type;
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}
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}
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return NULL;
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}
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|
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struct MapinfoSpawnItem
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{
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FName classname; // DECORATE is read after MAPINFO so we do not have the actual classes available here yet.
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// These are for error reporting. We must store the file information because it's no longer available when these items get resolved.
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FString filename;
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int linenum;
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};
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typedef TMap<int, MapinfoSpawnItem> SpawnMap;
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static SpawnMap SpawnablesFromMapinfo;
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static SpawnMap ConversationIDsFromMapinfo;
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|
|
|
static int STACK_ARGS SpawnableSort(const void *a, const void *b)
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{
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return (*((FClassMap::Pair **)a))->Key - (*((FClassMap::Pair **)b))->Key;
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}
|
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|
|
static void DumpClassMap(FClassMap &themap)
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{
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FClassMap::Iterator it(themap);
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FClassMap::Pair *pair, **allpairs;
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|
int i = 0;
|
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|
|
// Sort into numerical order, since their arrangement in the map can
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|
// be in an unspecified order.
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|
allpairs = new FClassMap::Pair *[themap.CountUsed()];
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|
while (it.NextPair(pair))
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|
{
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allpairs[i++] = pair;
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}
|
|
qsort(allpairs, i, sizeof(*allpairs), SpawnableSort);
|
|
for (int j = 0; j < i; ++j)
|
|
{
|
|
pair = allpairs[j];
|
|
Printf ("%d %s\n", pair->Key, pair->Value->TypeName.GetChars());
|
|
}
|
|
delete[] allpairs;
|
|
}
|
|
|
|
CCMD(dumpspawnables)
|
|
{
|
|
DumpClassMap(SpawnableThings);
|
|
}
|
|
|
|
CCMD (dumpconversationids)
|
|
{
|
|
DumpClassMap(StrifeTypes);
|
|
}
|
|
|
|
|
|
static void ParseSpawnMap(FScanner &sc, SpawnMap & themap, const char *descript)
|
|
{
|
|
TMap<int, bool> defined;
|
|
int error = 0;
|
|
|
|
MapinfoSpawnItem editem;
|
|
|
|
editem.filename = sc.ScriptName;
|
|
|
|
while (true)
|
|
{
|
|
if (sc.CheckString("}")) return;
|
|
else if (sc.CheckNumber())
|
|
{
|
|
int ednum = sc.Number;
|
|
sc.MustGetStringName("=");
|
|
sc.MustGetString();
|
|
|
|
bool *def = defined.CheckKey(ednum);
|
|
if (def != NULL)
|
|
{
|
|
sc.ScriptMessage("%s %d defined more than once", descript, ednum);
|
|
error++;
|
|
}
|
|
else if (ednum < 0)
|
|
{
|
|
sc.ScriptMessage("%s must be positive, got %d", descript, ednum);
|
|
error++;
|
|
}
|
|
defined[ednum] = true;
|
|
editem.classname = sc.String;
|
|
|
|
themap.Insert(ednum, editem);
|
|
}
|
|
else
|
|
{
|
|
sc.ScriptError("Number expected");
|
|
}
|
|
}
|
|
if (error > 0)
|
|
{
|
|
sc.ScriptError("%d errors encountered in %s definition", error, descript);
|
|
}
|
|
}
|
|
|
|
void FMapInfoParser::ParseSpawnNums()
|
|
{
|
|
ParseOpenBrace();
|
|
ParseSpawnMap(sc, SpawnablesFromMapinfo, "Spawn number");
|
|
}
|
|
|
|
void FMapInfoParser::ParseConversationIDs()
|
|
{
|
|
ParseOpenBrace();
|
|
ParseSpawnMap(sc, ConversationIDsFromMapinfo, "Conversation ID");
|
|
}
|
|
|
|
|
|
void InitClassMap(FClassMap &themap, SpawnMap &thedata)
|
|
{
|
|
themap.Clear();
|
|
SpawnMap::Iterator it(thedata);
|
|
SpawnMap::Pair *pair;
|
|
int error = 0;
|
|
|
|
while (it.NextPair(pair))
|
|
{
|
|
PClassActor *cls = NULL;
|
|
if (pair->Value.classname != NAME_None)
|
|
{
|
|
cls = PClass::FindActor(pair->Value.classname);
|
|
if (cls == NULL)
|
|
{
|
|
Printf(TEXTCOLOR_RED "Script error, \"%s\" line %d:\nUnknown actor class %s\n",
|
|
pair->Value.filename.GetChars(), pair->Value.linenum, pair->Value.classname.GetChars());
|
|
error++;
|
|
}
|
|
themap.Insert(pair->Key, cls);
|
|
}
|
|
else
|
|
{
|
|
themap.Remove(pair->Key);
|
|
}
|
|
}
|
|
if (error > 0)
|
|
{
|
|
I_Error("%d unknown actor classes found", error);
|
|
}
|
|
thedata.Clear(); // we do not need this any longer
|
|
}
|
|
|
|
void InitSpawnablesFromMapinfo()
|
|
{
|
|
InitClassMap(SpawnableThings, SpawnablesFromMapinfo);
|
|
InitClassMap(StrifeTypes, ConversationIDsFromMapinfo);
|
|
}
|
|
|
|
|
|
int P_Thing_Warp(AActor *caller, AActor *reference, double xofs, double yofs, double zofs, DAngle angle, int flags, double heightoffset, double radiusoffset, DAngle pitch)
|
|
{
|
|
if (flags & WARPF_MOVEPTR)
|
|
{
|
|
AActor *temp = reference;
|
|
reference = caller;
|
|
caller = temp;
|
|
}
|
|
|
|
DVector3 old = caller->Pos();
|
|
int oldpgroup = caller->Sector->PortalGroup;
|
|
|
|
zofs += reference->Height * heightoffset;
|
|
|
|
|
|
if (!(flags & WARPF_ABSOLUTEANGLE))
|
|
{
|
|
angle += (flags & WARPF_USECALLERANGLE) ? caller->Angles.Yaw: reference->Angles.Yaw;
|
|
}
|
|
|
|
const double rad = radiusoffset * reference->radius;
|
|
const double s = angle.Sin();
|
|
const double c = angle.Cos();
|
|
|
|
if (!(flags & WARPF_ABSOLUTEPOSITION))
|
|
{
|
|
if (!(flags & WARPF_ABSOLUTEOFFSET))
|
|
{
|
|
double xofs1 = xofs;
|
|
|
|
// (borrowed from A_SpawnItemEx, assumed workable)
|
|
// in relative mode negative y values mean 'left' and positive ones mean 'right'
|
|
// This is the inverse orientation of the absolute mode!
|
|
|
|
xofs = xofs1 * c + yofs * s;
|
|
yofs = xofs1 * s - yofs * c;
|
|
}
|
|
|
|
if (flags & WARPF_TOFLOOR)
|
|
{
|
|
// set correct xy
|
|
// now the caller's floorz should be appropriate for the assigned xy-position
|
|
// assigning position again with.
|
|
// extra unlink, link and environment calculation
|
|
caller->SetOrigin(reference->Vec3Offset(xofs + rad * c, yofs + rad * s, 0.), true);
|
|
// The two-step process is important.
|
|
caller->SetZ(caller->floorz + zofs);
|
|
}
|
|
else
|
|
{
|
|
caller->SetOrigin(reference->Vec3Offset(xofs + rad * c, yofs + rad * s, zofs), true);
|
|
}
|
|
}
|
|
else // [MC] The idea behind "absolute" is meant to be "absolute". Override everything, just like A_SpawnItemEx's.
|
|
{
|
|
caller->SetOrigin(xofs + rad * c, yofs + rad * s, zofs, true);
|
|
if (flags & WARPF_TOFLOOR)
|
|
{
|
|
caller->SetZ(caller->floorz + zofs);
|
|
}
|
|
}
|
|
|
|
if ((flags & WARPF_NOCHECKPOSITION) || P_TestMobjLocation(caller))
|
|
{
|
|
if (flags & WARPF_TESTONLY)
|
|
{
|
|
caller->SetOrigin(old, true);
|
|
}
|
|
else
|
|
{
|
|
caller->Angles.Yaw = angle;
|
|
|
|
if (flags & WARPF_COPYPITCH)
|
|
caller->SetPitch(reference->Angles.Pitch, false);
|
|
|
|
if (pitch != 0)
|
|
caller->SetPitch(caller->Angles.Pitch + pitch, false);
|
|
|
|
if (flags & WARPF_COPYVELOCITY)
|
|
{
|
|
caller->Vel = reference->Vel;
|
|
}
|
|
if (flags & WARPF_STOP)
|
|
{
|
|
caller->Vel.Zero();
|
|
}
|
|
|
|
// this is no fun with line portals
|
|
if (flags & WARPF_WARPINTERPOLATION)
|
|
{
|
|
// This just translates the movement but doesn't change the vector
|
|
DVector3 displacedold = old + Displacements.getOffset(oldpgroup, caller->Sector->PortalGroup);
|
|
caller->Prev += caller->Pos() - displacedold;
|
|
caller->PrevPortalGroup = caller->Sector->PortalGroup;
|
|
}
|
|
else if (flags & WARPF_COPYINTERPOLATION)
|
|
{
|
|
// Map both positions of the reference actor to the current portal group
|
|
DVector3 displacedold = old + Displacements.getOffset(reference->PrevPortalGroup, caller->Sector->PortalGroup);
|
|
DVector3 displacedref = old + Displacements.getOffset(reference->Sector->PortalGroup, caller->Sector->PortalGroup);
|
|
caller->Prev = caller->Pos() + displacedold - displacedref;
|
|
caller->PrevPortalGroup = caller->Sector->PortalGroup;
|
|
}
|
|
else if (!(flags & WARPF_INTERPOLATE))
|
|
{
|
|
caller->ClearInterpolation();
|
|
}
|
|
|
|
if ((flags & WARPF_BOB) && (reference->flags2 & MF2_FLOATBOB))
|
|
{
|
|
caller->AddZ(reference->GetBobOffset());
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
caller->SetOrigin(old, true);
|
|
return false;
|
|
}
|