892 lines
20 KiB
C++
892 lines
20 KiB
C++
/*=========================================================================
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thing.cpp
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Author: PKG
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Created:
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Project: Spongebob
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Purpose:
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Copyright (c) 2001 Climax Development Ltd
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===========================================================================*/
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/*----------------------------------------------------------------------
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Includes
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-------- */
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#include "thing\thing.h"
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#ifndef __PLAYER_PLAYER_H__
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#include "player\player.h"
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#endif
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#ifndef __GAME_GAME_H__
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#include "game\game.h"
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#endif
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#ifndef __UTILS_HEADER__
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#include "utils\utils.h"
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#endif
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/* Std Lib
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------- */
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/* Data
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---- */
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/*----------------------------------------------------------------------
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Tyepdefs && Defines
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------------------- */
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/*----------------------------------------------------------------------
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Structure defintions
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-------------------- */
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/*----------------------------------------------------------------------
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Function Prototypes
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------------------- */
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/*----------------------------------------------------------------------
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Vars
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---- */
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CThing *CThingManager::s_thingLists[CThing::MAX_TYPE]={NULL,NULL};
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int CThingManager::s_initialised=false;
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::init()
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{
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int i;
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ASSERT(!s_initialised);
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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s_thingLists[i]=NULL;
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}
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s_initialised=true;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::shutdown()
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{
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int i;
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CThing *thing;
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ASSERT(s_initialised);
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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while(s_thingLists[i])
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{
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thing=s_thingLists[i];
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thing->shutdown();
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delete thing;
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}
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}
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s_initialised=false;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::thinkAllThings(int _frames)
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{
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int i;
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CThing *thing;
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CThing *thing1,*thing2;
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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thing=s_thingLists[i];
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while(thing)
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{
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thing->think(_frames);
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thing->updateCollisionArea();
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thing=thing->m_nextThing;
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}
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}
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CPlayer *player = GameScene.getPlayer();
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if ( player )
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{
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player->clearPlatform();
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}
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// Player -> Platform collision
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thing1=s_thingLists[CThing::TYPE_PLATFORM];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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thing2->setHasPlatformCollided( false );
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thing2->setNewCollidedPos( thing2->getPos() );
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Pickup collision
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thing1=s_thingLists[CThing::TYPE_PICKUP];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Enemy collision
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thing1=s_thingLists[CThing::TYPE_ENEMY];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Friend collision
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thing1=s_thingLists[CThing::TYPE_NPC];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Hazard collision
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thing1=s_thingLists[CThing::TYPE_HAZARD];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Enemy projectile collision
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thing1=s_thingLists[CThing::TYPE_ENEMYPROJECTILE];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Player -> Trigger collision
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thing1=s_thingLists[CThing::TYPE_TRIGGER];
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thing2=s_thingLists[CThing::TYPE_PLAYER];
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while(thing1&&thing2)
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{
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if(thing1->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing1=thing1->m_nextThing;
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}
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// Enemy -> Player projectile collision
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thing1=s_thingLists[CThing::TYPE_PLAYERPROJECTILE];
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thing2=s_thingLists[CThing::TYPE_ENEMY];
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while(thing1)
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{
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while(thing2)
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{
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if(thing1->canCollide()&&
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thing2->canCollide()&&
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thing1->checkCollisionAgainst(thing2, _frames))
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{
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thing1->collidedWith(thing2);
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}
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thing2=thing2->m_nextThing;
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}
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thing1=thing1->m_nextThing;
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}
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// Enemy -> Enemy collision
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thing1=s_thingLists[CThing::TYPE_ENEMY];
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while(thing1)
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{
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thing2=s_thingLists[CThing::TYPE_ENEMY];
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while(thing2)
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{
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if ( thing1 != thing2 )
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{
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if ( thing1->canCollide() &&
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thing2->canCollide() &&
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thing1->checkCollisionAgainst( thing2, _frames ) )
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{
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thing1->collidedWith( thing2 );
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//thing2->collidedWith( thing1 );
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}
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}
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thing2 = thing2->m_nextThing;
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}
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thing1 = thing1->m_nextThing;
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}
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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thing=s_thingLists[i];
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CThing *nextThing = thing;
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while(thing)
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{
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nextThing=thing->m_nextThing;
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if ( thing->isSetToShutdown() )
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{
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thing->shutdown();
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delete thing;
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}
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thing = nextThing;
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}
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}
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::renderAllThings()
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{
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int i;
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CThing *thing;
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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thing=s_thingLists[i];
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while(thing)
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{
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thing->render();
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thing=thing->m_nextThing;
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}
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}
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::processEventAllThings(GAME_EVENT _event,CThing *_sourceThing)
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{
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int i;
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CThing *thing;
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for(i=0;i<CThing::MAX_TYPE;i++)
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{
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thing=s_thingLists[i];
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while(thing)
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{
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thing->processEvent(_event,_sourceThing);
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thing=thing->m_nextThing;
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}
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}
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose: Searches through a list of things to check for collision against an area.
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The first time this is called, _continue should be false. If no colliding things are found then
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NULL will be returned. If a colliding thing is found then it's address gets returned. To continue
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searching through the list for the next colliding thing, call the function again with _continue set
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to true.
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NB: This function could probly cause weird bugs if not used properly! BE AWARE!
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Params: *_area Area to check against
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_type Type of thing to search for
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_continue If false then the list is searched from the start, if true then the search continues
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from the last thing that was found ( um.. see above )
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Returns:
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---------------------------------------------------------------------- */
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CThing *CThingManager::checkCollisionAreaAgainstThings(CRECT *_area,int _type,int _continue)
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{
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static CThing *thing=NULL;
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ASSERT(_type<CThing::MAX_TYPE);
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if(_continue)
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{
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ASSERT(thing);
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thing=thing->m_nextThing;
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}
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else
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{
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thing=s_thingLists[_type];
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}
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while(thing)
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{
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if(thing->canCollide()&&
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thing->checkCollisionAgainstArea(_area))
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{
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return thing;
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}
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thing=thing->m_nextThing;
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}
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return NULL;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::addToThingList(CThing *_this)
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{
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_this->m_nextThing=s_thingLists[_this->getThingType()];
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s_thingLists[_this->getThingType()]=_this;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThingManager::removeFromThingList(CThing *_this)
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{
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CThing *prevThing,*thing;
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prevThing=NULL;
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thing=s_thingLists[_this->getThingType()];
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while(thing!=_this)
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{
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prevThing=thing;
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thing=thing->m_nextThing;
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ASSERT(thing); // Not in the list!?!?
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}
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if(prevThing)
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{
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prevThing->m_nextThing=_this->m_nextThing;
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}
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else
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{
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s_thingLists[_this->getThingType()]=_this->m_nextThing;
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}
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThing::init()
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{
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Parent=NULL;
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Next=NULL;
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m_numChildren = 0;
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Pos.vx=Pos.vy=10;
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// Add to thing list
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CThingManager::addToThingList(this);
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setCollisionSize(20,20); // Some temporary defaults.. (pkg)
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setCollisionCentreOffset(0,0);
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setCollisionAngle(0);
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThing::shutdown()
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{
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if (Parent)
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{ // Is child
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Parent->removeChild(this);
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}
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else
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{ // Is Parent
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removeAllChild();
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}
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// Remove from thing list
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CThingManager::removeFromThingList(this);
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void CThing::think(int _frames)
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{
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PosDelta.vx=Pos.vx-PosLast.vx;
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PosDelta.vy=Pos.vy-PosLast.vy;
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PosLast=Pos;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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#if defined (__USER_paul__) || defined (__USER_charles__)
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int showthings=true;
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#include "gfx\prim.h"
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#include "level\level.h"
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void CThing::render()
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{
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if(showthings)
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{
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DVECTOR ofs;
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CRECT area;
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ofs=CLevel::getCameraPos();
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area=getCollisionArea();
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area.x1-=ofs.vx;
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area.y1-=ofs.vy;
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area.x2-=ofs.vx;
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area.y2-=ofs.vy;
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if(area.x1<=511&&area.x2>=0&&
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area.y1<=255&&area.y2>=0)
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{
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DrawLine(area.x1,area.y1,area.x2,area.y1,255,255,255,0);
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DrawLine(area.x2,area.y1,area.x2,area.y2,255,255,255,0);
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DrawLine(area.x2,area.y2,area.x1,area.y2,255,255,255,0);
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DrawLine(area.x1,area.y2,area.x1,area.y1,255,255,255,0);
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area.x1=Pos.vx-10-ofs.vx;
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area.y1=Pos.vy-10-ofs.vy;
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area.x2=Pos.vx+10-ofs.vx;
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area.y2=Pos.vy+10-ofs.vy;
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DrawLine(area.x1,area.y1,area.x2,area.y2,255,0,0,0);
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DrawLine(area.x2,area.y1,area.x1,area.y2,255,0,0,0);
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}
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/*
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DVECTOR ofs;
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CRECT area;
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ofs=CLevel::getCameraPos();
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area=getCollisionArea();
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area.x1-=ofs.vx;
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area.y1-=ofs.vy;
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area.x2-=ofs.vx;
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area.y2-=ofs.vy;
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if(area.x1<=511&&area.x2>=0&&
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area.y1<=255&&area.y2>=0)
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{
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area=getCollisionArea();
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SVECTOR points[4];
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VECTOR vecPoints[4];
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points[0].vx = area.x1 - Pos.vx;
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points[0].vy = area.y1 - Pos.vy;
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points[1].vx = area.x1 - Pos.vx;
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points[1].vy = area.y2 - Pos.vy;
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points[2].vx = area.x2 - Pos.vx;
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points[2].vy = area.y2 - Pos.vy;
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points[3].vx = area.x2 - Pos.vx;
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points[3].vy = area.y1 - Pos.vy;
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MATRIX mtx;
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SetIdentNoTrans(&mtx );
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RotMatrixZ( m_collisionAngle, &mtx );
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ApplyMatrix( &mtx, &points[0], &vecPoints[0] );
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ApplyMatrix( &mtx, &points[1], &vecPoints[1] );
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ApplyMatrix( &mtx, &points[2], &vecPoints[2] );
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ApplyMatrix( &mtx, &points[3], &vecPoints[3] );
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vecPoints[0].vx += Pos.vx - ofs.vx;
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vecPoints[0].vy += Pos.vy - ofs.vy;
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vecPoints[1].vx += Pos.vx - ofs.vx;
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vecPoints[1].vy += Pos.vy - ofs.vy;
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vecPoints[2].vx += Pos.vx - ofs.vx;
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vecPoints[2].vy += Pos.vy - ofs.vy;
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vecPoints[3].vx += Pos.vx - ofs.vx;
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vecPoints[3].vy += Pos.vy - ofs.vy;
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//DrawLine(area.x1,area.y1,area.x1,area.y2,255,255,255,0);
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//DrawLine(area.x1,area.y2,area.x2,area.y2,255,255,255,0);
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//DrawLine(area.x2,area.y2,area.x2,area.y1,255,255,255,0);
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//DrawLine(area.x2,area.y1,area.x1,area.y1,255,255,255,0);
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DrawLine( vecPoints[0].vx, vecPoints[0].vy, vecPoints[1].vx, vecPoints[1].vy,255,255,255,0);
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DrawLine( vecPoints[1].vx, vecPoints[1].vy, vecPoints[2].vx, vecPoints[2].vy,255,255,255,0);
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DrawLine( vecPoints[2].vx, vecPoints[2].vy, vecPoints[3].vx, vecPoints[3].vy,255,255,255,0);
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DrawLine( vecPoints[3].vx, vecPoints[3].vy, vecPoints[0].vx, vecPoints[0].vy,255,255,255,0);
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area.x1=Pos.vx-10-ofs.vx;
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area.y1=Pos.vy-10-ofs.vy;
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area.x2=Pos.vx+10-ofs.vx;
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area.y2=Pos.vy+10-ofs.vy;
|
|
DrawLine(area.x1,area.y1,area.x2,area.y2,255,0,0,0);
|
|
DrawLine(area.x2,area.y1,area.x1,area.y2,255,0,0,0);
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
#else
|
|
void CThing::render()
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::addChild(CThing *Child)
|
|
{
|
|
CThing *List=Next;
|
|
|
|
if ( List )
|
|
{
|
|
// Find end of list
|
|
while (List->Next)
|
|
{
|
|
List=List->Next;
|
|
}
|
|
List->Next=Child;
|
|
Child->Parent=this;
|
|
m_numChildren++;
|
|
}
|
|
else
|
|
{
|
|
// List does not exist, create
|
|
Next = Child;
|
|
Child->Parent=this;
|
|
m_numChildren++;
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::removeChild(CThing *Child)
|
|
{
|
|
CThing *List=Next;
|
|
CThing *Last=NULL;
|
|
|
|
// Find Child
|
|
while ( List != Child && List->Next )
|
|
{
|
|
Last = List;
|
|
List = List->Next;
|
|
}
|
|
|
|
// if there are no more links to continue down, the current 'List' must either be the correct item, or the item does not
|
|
// exist in the list at all
|
|
|
|
ASSERT( List == Child );
|
|
|
|
if ( Last )
|
|
{
|
|
Last->Next = List->Next;
|
|
}
|
|
else
|
|
{
|
|
this->Next = List->Next;
|
|
}
|
|
|
|
m_numChildren--;
|
|
|
|
Child->Parent=NULL;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::removeAllChild()
|
|
{
|
|
CThing *List=Next;
|
|
|
|
while (List)
|
|
{
|
|
CThing *Next=List->Next;
|
|
List->Parent=NULL;
|
|
List->Next=NULL;
|
|
List=Next;
|
|
}
|
|
Next=NULL;
|
|
|
|
m_numChildren = 0;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::deleteAllChild()
|
|
{
|
|
CThing *List=Next;
|
|
|
|
while (List)
|
|
{
|
|
CThing *Next=List->Next;
|
|
List->Parent=NULL;
|
|
List->Next=NULL;
|
|
List->shutdown();
|
|
delete List;
|
|
List=Next;
|
|
}
|
|
Next=NULL;
|
|
|
|
m_numChildren = 0;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
int CThing::getNumChildren()
|
|
{
|
|
return( m_numChildren );
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
bool CThing::hasChild(CThing *Child)
|
|
{
|
|
CThing *nextChild = Next;
|
|
|
|
while( nextChild )
|
|
{
|
|
if ( nextChild == Child )
|
|
{
|
|
return( true );
|
|
}
|
|
|
|
nextChild = nextChild->Next;
|
|
}
|
|
|
|
return( false );
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::setCollisionSize(int _w,int _h)
|
|
{
|
|
m_collisionSize.vx=_w;
|
|
m_collisionSize.vy=_h;
|
|
if(m_collisionSize.vx>m_collisionSize.vy)
|
|
{
|
|
m_collisionRadius=m_collisionSize.vx;
|
|
}
|
|
else
|
|
{
|
|
m_collisionRadius=m_collisionSize.vy;
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::updateCollisionArea()
|
|
{
|
|
m_collisionCentre.vx=Pos.vx+m_collisionCentreOffset.vx;
|
|
m_collisionCentre.vy=Pos.vy+m_collisionCentreOffset.vy;
|
|
m_collisionArea.x1=m_collisionCentre.vx-(m_collisionSize.vx/2);
|
|
m_collisionArea.x2=m_collisionArea.x1+m_collisionSize.vx;
|
|
m_collisionArea.y1=m_collisionCentre.vy-(m_collisionSize.vy/2);
|
|
m_collisionArea.y2=m_collisionArea.y1+m_collisionSize.vy;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
|
|
s32 CThing::getNewYPos(CThing *_thisThing)
|
|
{
|
|
CRECT thisRect;
|
|
thisRect = getCollisionArea();
|
|
|
|
if ( thisRect.y1 < thisRect.y2 )
|
|
{
|
|
return( thisRect.y1 );
|
|
}
|
|
else
|
|
{
|
|
return( thisRect.y2 );
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
int CThing::checkCollisionAgainst(CThing *_thisThing, int _frames)
|
|
{
|
|
DVECTOR pos,thisThingPos;
|
|
int radius;
|
|
int collided;
|
|
|
|
pos=getCollisionCentre();
|
|
thisThingPos=_thisThing->getCollisionCentre();
|
|
|
|
radius=getCollisionRadius()+_thisThing->getCollisionRadius();
|
|
collided=false;
|
|
if(abs(pos.vx-thisThingPos.vx)<radius&&
|
|
abs(pos.vy-thisThingPos.vy)<radius)
|
|
{
|
|
CRECT thisRect,thatRect;
|
|
|
|
thisRect=getCollisionArea();
|
|
|
|
thatRect=_thisThing->getCollisionArea();
|
|
|
|
if(((thisRect.x1>=thatRect.x1&&thisRect.x1<=thatRect.x2)||(thisRect.x2>=thatRect.x1&&thisRect.x2<=thatRect.x2)||(thisRect.x1<=thatRect.x1&&thisRect.x2>=thatRect.x2))&&
|
|
((thisRect.y1>=thatRect.y1&&thisRect.y1<=thatRect.y2)||(thisRect.y2>=thatRect.y1&&thisRect.y2<=thatRect.y2)||(thisRect.y1<=thatRect.y1&&thisRect.y2>=thatRect.y2)))
|
|
{
|
|
collided=true;
|
|
}
|
|
}
|
|
|
|
return collided;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
int CThing::checkCollisionAgainstArea(CRECT *_rect)
|
|
{
|
|
CRECT thisRect;
|
|
int ret;
|
|
|
|
thisRect=getCollisionArea();
|
|
ret=false;
|
|
|
|
if(((thisRect.x1>=_rect->x1&&thisRect.x1<=_rect->x2)||(thisRect.x2>=_rect->x1&&thisRect.x2<=_rect->x2)||(thisRect.x1<=_rect->x1&&thisRect.x2>=_rect->x2))&&
|
|
((thisRect.y1>=_rect->y1&&thisRect.y1<=_rect->y2)||(thisRect.y2>=_rect->y1&&thisRect.y2<=_rect->y2)||(thisRect.y1<=_rect->y1&&thisRect.y2>=_rect->y2)))
|
|
{
|
|
ret=true;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CThing::processEvent(GAME_EVENT _event,CThing *_sourceThing)
|
|
{
|
|
// do nothing by default - ignore event
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CTriggerThing::setPositionAndSize(int _x,int _y,int _w,int _h)
|
|
{
|
|
Pos.vx=_x+(_w/2);
|
|
Pos.vy=_y+(_h/2);
|
|
setCollisionSize(_w,_h);
|
|
}
|
|
|
|
/*----------------------------------------------------------------------
|
|
Function:
|
|
Purpose:
|
|
Params:
|
|
Returns:
|
|
---------------------------------------------------------------------- */
|
|
void CTriggerThing::setTargetPos(int _x,int _y)
|
|
{
|
|
TargetPos.vx=_x;
|
|
TargetPos.vy=_y;
|
|
}
|
|
|
|
/*===========================================================================
|
|
end */
|