mirror of
https://github.com/blendogames/quadrilateralcowboy.git
synced 2024-11-10 06:41:36 +00:00
271 lines
7.7 KiB
C++
271 lines
7.7 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
|
|
|
|
Doom 3 Source Code is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 Source Code is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#ifndef __SCRIPT_INTERPRETER_H__
|
|
#define __SCRIPT_INTERPRETER_H__
|
|
|
|
#define MAX_STACK_DEPTH 64
|
|
#define LOCALSTACK_SIZE 6144
|
|
|
|
typedef struct prstack_s {
|
|
int s;
|
|
const function_t *f;
|
|
int stackbase;
|
|
} prstack_t;
|
|
|
|
class idInterpreter {
|
|
private:
|
|
prstack_t callStack[ MAX_STACK_DEPTH ];
|
|
int callStackDepth;
|
|
int maxStackDepth;
|
|
|
|
byte localstack[ LOCALSTACK_SIZE ];
|
|
int localstackUsed;
|
|
int localstackBase;
|
|
int maxLocalstackUsed;
|
|
|
|
const function_t *currentFunction;
|
|
int instructionPointer;
|
|
|
|
int popParms;
|
|
const idEventDef *multiFrameEvent;
|
|
idEntity *eventEntity;
|
|
|
|
idThread *thread;
|
|
|
|
void PopParms( int numParms );
|
|
void PushString( const char *string );
|
|
void Push( int value );
|
|
const char *FloatToString( float value );
|
|
void AppendString( idVarDef *def, const char *from );
|
|
void SetString( idVarDef *def, const char *from );
|
|
const char *GetString( idVarDef *def );
|
|
varEval_t GetVariable( idVarDef *def );
|
|
idEntity *GetEntity( int entnum ) const;
|
|
idScriptObject *GetScriptObject( int entnum ) const;
|
|
void NextInstruction( int position );
|
|
|
|
void LeaveFunction( idVarDef *returnDef );
|
|
void CallEvent( const function_t *func, int argsize );
|
|
void CallSysEvent( const function_t *func, int argsize );
|
|
|
|
public:
|
|
bool doneProcessing;
|
|
bool threadDying;
|
|
bool terminateOnExit;
|
|
bool debug;
|
|
|
|
idInterpreter();
|
|
|
|
// save games
|
|
void Save( idSaveGame *savefile ) const; // archives object for save game file
|
|
void Restore( idRestoreGame *savefile ); // unarchives object from save game file
|
|
|
|
void SetThread( idThread *pThread );
|
|
|
|
void StackTrace( void ) const;
|
|
|
|
int CurrentLine( void ) const;
|
|
const char *CurrentFile( void ) const;
|
|
|
|
void Error( char *fmt, ... ) const id_attribute((format(printf,2,3)));
|
|
void Warning( char *fmt, ... ) const id_attribute((format(printf,2,3)));
|
|
void DisplayInfo( void ) const;
|
|
|
|
bool BeginMultiFrameEvent( idEntity *ent, const idEventDef *event );
|
|
void EndMultiFrameEvent( idEntity *ent, const idEventDef *event );
|
|
bool MultiFrameEventInProgress( void ) const;
|
|
|
|
void ThreadCall( idInterpreter *source, const function_t *func, int args );
|
|
void EnterFunction( const function_t *func, bool clearStack );
|
|
void EnterObjectFunction( idEntity *self, const function_t *func, bool clearStack );
|
|
|
|
bool Execute( void );
|
|
void Reset( void );
|
|
|
|
bool GetRegisterValue( const char *name, idStr &out, int scopeDepth );
|
|
int GetCallstackDepth( void ) const;
|
|
const prstack_t *GetCallstack( void ) const;
|
|
const function_t *GetCurrentFunction( void ) const;
|
|
idThread *GetThread( void ) const;
|
|
|
|
};
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::PopParms
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::PopParms( int numParms ) {
|
|
// pop our parms off the stack
|
|
if ( localstackUsed < numParms ) {
|
|
Error( "locals stack underflow\n" );
|
|
}
|
|
|
|
localstackUsed -= numParms;
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::Push
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::Push( int value ) {
|
|
if ( localstackUsed + sizeof( int ) > LOCALSTACK_SIZE ) {
|
|
Error( "Push: locals stack overflow\n" );
|
|
}
|
|
*( int * )&localstack[ localstackUsed ] = value;
|
|
localstackUsed += sizeof( int );
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::PushString
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::PushString( const char *string ) {
|
|
if ( localstackUsed + MAX_STRING_LEN > LOCALSTACK_SIZE ) {
|
|
Error( "PushString: locals stack overflow\n" );
|
|
}
|
|
idStr::Copynz( ( char * )&localstack[ localstackUsed ], string, MAX_STRING_LEN );
|
|
localstackUsed += MAX_STRING_LEN;
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::FloatToString
|
|
====================
|
|
*/
|
|
ID_INLINE const char *idInterpreter::FloatToString( float value ) {
|
|
static char text[ 32 ];
|
|
|
|
if ( value == ( float )( int )value ) {
|
|
sprintf( text, "%d", ( int )value );
|
|
} else {
|
|
sprintf( text, "%f", value );
|
|
}
|
|
return text;
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::AppendString
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::AppendString( idVarDef *def, const char *from ) {
|
|
if ( def->initialized == idVarDef::stackVariable ) {
|
|
idStr::Append( ( char * )&localstack[ localstackBase + def->value.stackOffset ], MAX_STRING_LEN, from );
|
|
} else {
|
|
idStr::Append( def->value.stringPtr, MAX_STRING_LEN, from );
|
|
}
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::SetString
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::SetString( idVarDef *def, const char *from ) {
|
|
if ( def->initialized == idVarDef::stackVariable ) {
|
|
idStr::Copynz( ( char * )&localstack[ localstackBase + def->value.stackOffset ], from, MAX_STRING_LEN );
|
|
} else {
|
|
idStr::Copynz( def->value.stringPtr, from, MAX_STRING_LEN );
|
|
}
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::GetString
|
|
====================
|
|
*/
|
|
ID_INLINE const char *idInterpreter::GetString( idVarDef *def ) {
|
|
if ( def->initialized == idVarDef::stackVariable ) {
|
|
return ( char * )&localstack[ localstackBase + def->value.stackOffset ];
|
|
} else {
|
|
return def->value.stringPtr;
|
|
}
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::GetVariable
|
|
====================
|
|
*/
|
|
ID_INLINE varEval_t idInterpreter::GetVariable( idVarDef *def ) {
|
|
if ( def->initialized == idVarDef::stackVariable ) {
|
|
varEval_t val;
|
|
val.intPtr = ( int * )&localstack[ localstackBase + def->value.stackOffset ];
|
|
return val;
|
|
} else {
|
|
return def->value;
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idInterpreter::GetEntity
|
|
================
|
|
*/
|
|
ID_INLINE idEntity *idInterpreter::GetEntity( int entnum ) const{
|
|
assert( entnum <= MAX_GENTITIES );
|
|
if ( ( entnum > 0 ) && ( entnum <= MAX_GENTITIES ) ) {
|
|
return gameLocal.entities[ entnum - 1 ];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idInterpreter::GetScriptObject
|
|
================
|
|
*/
|
|
ID_INLINE idScriptObject *idInterpreter::GetScriptObject( int entnum ) const {
|
|
idEntity *ent;
|
|
|
|
assert( entnum <= MAX_GENTITIES );
|
|
if ( ( entnum > 0 ) && ( entnum <= MAX_GENTITIES ) ) {
|
|
ent = gameLocal.entities[ entnum - 1 ];
|
|
if ( ent && ent->scriptObject.data ) {
|
|
return &ent->scriptObject;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
====================
|
|
idInterpreter::NextInstruction
|
|
====================
|
|
*/
|
|
ID_INLINE void idInterpreter::NextInstruction( int position ) {
|
|
// Before we execute an instruction, we increment instructionPointer,
|
|
// therefore we need to compensate for that here.
|
|
instructionPointer = position - 1;
|
|
}
|
|
|
|
#endif /* !__SCRIPT_INTERPRETER_H__ */
|