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/*
* PARSEC - Object Class Management
*
* $Author: uberlinuxguy $ - $Date: 2004/09/26 03:43:44 $
*
* Orginally written by:
* Copyright (c) Markus Hadwiger <msh@parsec.org> 1996-2000
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// C library
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// compilation flags/debug support
#include "config.h"
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
#include "od_class.h"
// global externals
#include "globals.h"
#ifdef PARSEC_SERVER
#include "e_world_trans.h"
#endif // PARSEC_SERVER
// local module header
#include "obj_clas.h"
// proprietary module headers
#include "obj_cust.h"
#include "obj_type.h"
// flags
//#define ALLOW_ONLY_KNOWN_CLASSES
// fetch object class via name ------------------------------------------------
//
GenObject *OBJ_FetchObjectClass( const char *classname )
{
ASSERT( classname != NULL );
ASSERT( NumObjClasses == NumLoadedObjects );
// scan entire table of object classes
int classid = 0;
for ( classid = 0; classid < NumLoadedObjects; classid++ )
if ( stricmp( ObjectInfo[ classid ].name, classname ) == 0 )
break;
if ( classid < NumObjClasses ) {
ASSERT( ObjClasses[ classid ] != NULL );
ASSERT( ObjClasses[ classid ]->ObjectClass == (dword)classid );
return ObjClasses[ classid ];
} else {
return NULL;
}
}
// fetch object class id via name ---------------------------------------------
//
dword OBJ_FetchObjectClassId( const char *classname )
{
ASSERT( classname != NULL );
ASSERT( NumObjClasses == NumLoadedObjects );
// scan entire table of object classes
for ( int classid = 0; classid < NumLoadedObjects; classid++ )
if ( stricmp( ObjectInfo[ classid ].name, classname ) == 0 )
return classid;
// no object class of this name found
return CLASS_ID_INVALID;
}
// fetch object class via name or id if already acquired ----------------------
//
GenObject *OBJ_ReacquireObjectClass( dword *classid, const char *classname )
{
ASSERT( classid != NULL );
ASSERT( classname != NULL );
GenObject *classpo = NULL;
dword tmpclassid = *classid;
if ( tmpclassid == CLASS_ID_INVALID ) {
tmpclassid = OBJ_FetchObjectClassId( classname );
}
if ( tmpclassid != CLASS_ID_INVALID ) {
ASSERT( tmpclassid < (dword)NumObjClasses );
classpo = ObjClasses[ tmpclassid ];
}
*classid = tmpclassid;
return classpo;
}
// init default values for object class ---------------------------------------
//
PRIVATE
void InitDefaultClassFields( GenObject *classpo, dword classid )
{
ASSERT( classpo != NULL );
ASSERT( classid < MAX_DISTINCT_OBJCLASSES );
ASSERT( classid <= (dword)NumObjClasses );
//NOTE:
// ( classid == NumObjClasses ) is allowed since
// this will occur when a new class is being added.
// (NumObjClasses will only be increased afterwards.)
switch ( classid ) {
case SHIP_CLASS_1:
break;
case SHIP_CLASS_2:
break;
case SHIP_CLASS_3:
break;
case LASER0_CLASS_1:
break;
case LASER0_CLASS_2:
break;
case LASER1_CLASS_1:
break;
case LASER2_CLASS_1:
break;
case DUMB_CLASS_1:
break;
case GUIDE_CLASS_1:
break;
case SWARM_CLASS_1:
break;
case ENERGY_EXTRA_CLASS:
break;
case DUMB_PACK_CLASS:
break;
case GUIDE_PACK_CLASS:
break;
case HELIX_DEVICE_CLASS:
break;
case LIGHTNING_DEVICE_CLASS:
break;
case MINE_PACK_CLASS:
break;
case MINE_CLASS_1:
break;
case REPAIR_EXTRA_CLASS:
break;
case AFTERBURNER_DEVICE_CLASS:
break;
case SWARM_PACK_CLASS:
break;
case INVISIBILITY_CLASS:
break;
case INVULNERABILITY_CLASS:
break;
case PHOTON_DEVICE_CLASS:
break;
case DECOY_DEVICE_CLASS:
break;
case LASERUPGRADE1_CLASS:
break;
case LASERUPGRADE2_CLASS:
break;
#ifdef ALLOW_ONLY_KNOWN_CLASSES
default:
PERROR( "unknown object class id: %d.", classid );
#endif
}
}
// init class member variables to default values ------------------------------
//
void OBJ_InitClass( dword classid )
{
ASSERT( classid < MAX_DISTINCT_OBJCLASSES );
ASSERT( classid <= (dword)NumObjClasses );
GenObject *classpo = ObjClasses[ classid ];
//NOTE:
// ( classid == NumObjClasses ) is allowed since
// this will occur when a new class is being added.
// (NumObjClasses will only be increased afterwards.)
//NOTE:
// distinction between "object classes" and "object types"
// -------------------------------------------------------
// different _objclasses_ originate in different object data files;
// i.e. the list of objects that should be loaded is parsed and each
// entry is read and inserted into the array containing pointers to
// all _objclasses_. Thus each object loaded gets a sequentially
// (in the order encountered in the control file) assigned number,
// that is, its *objclass_number*. (these numbers are also contained
// in file "od_class.h" in order to be used by the object control
// code. If the order of entries in the control file doesn't
// correspond to this header file then faulty behavior will occur.
//
// different objclass does not necessarily mean that objects *behave*
// differently in the game as it does only mean that geometry and
// shading data are different. therefore another concept manages
// *behavior* of objects:
//
// an _objtype_ describes how an object should be handled by the
// engine and also what data structure is used to manage the object
// in memory. e.g. all objects of the same type are managed by the
// same data structure and handled equally by the engine.
//
// i.e. objectclasses Laser#1..Laser#5 could all be the same type
// of laser (concerning their behavior) but look differently.
// The game *always* instantiates _objectclasses_ (as the look of
// the object has to be determined), their type is determined
// automatically. (as it is contained in the objectclass structure.)
if ( ( classpo->ObjectType & TYPENUMBERMASK ) < NUM_DISTINCT_OBJTYPES ) {
// init default values for object *type*
OBJ_InitDefaultTypeFields( classpo );
// init default values for object *class*
InitDefaultClassFields( classpo, classid );
} else {
// init type and class fields for custom type
OBJ_InitCustomType( classpo );
}
// ensure correct clipping when rendering
// directly from class template
classpo->CullMask = 0x3f;
}
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