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4411c013b1
SBSPSS/source/thing/thing.cpp
Charles 4411c013b1
2001-06-06 13:27:46 +00:00

1384 lines
31 KiB
C++
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/*=========================================================================
thing.cpp
Author: PKG
Created:
Project: Spongebob
Purpose:
Copyright (c) 2001 Climax Development Ltd
===========================================================================*/
#define USE_FREE_LIST
/*----------------------------------------------------------------------
Includes
-------- */
#include "thing\thing.h"
#ifndef __PLAYER_PLAYER_H__
#include "player\player.h"
#endif
#ifndef __GAME_GAME_H__
#include "game\game.h"
#endif
#ifndef __UTILS_HEADER__
#include "utils\utils.h"
#endif
#include "level\level.h"
// Needed for freelist table :o(
#include "pickups\pickup.h"
#include "platform\platform.h"
#include "projectl\projectl.h"
#include "enemy\npc.h"
#include "friend\friend.h"
#include "triggers\trigger.h"
#include "fx\fx.h"
#ifndef __FRIEND_FRIEND_H__
#include "friend\friend.h"
#endif
#ifndef __FRIEND_FGARY_H__
#include "friend\fgary.h"
#endif
#ifndef __HAZARD_HRWEIGHT_H__
#include "hazard\hrweight.h"
#endif
#ifndef __HAZARD_HRWHEEL_H__
#include "hazard\hrwheel.h"
#endif
#ifndef __HAZARD_HPSWITCH_H__
#include "hazard\hpswitch.h"
#endif
#ifndef __TRIGGERS_TGARYGO_H__
#include "triggers\tgarygo.h"
#endif
/* Std Lib
------- */
/* Data
---- */
/*----------------------------------------------------------------------
Tyepdefs && Defines
------------------- */
/*----------------------------------------------------------------------
Structure defintions
-------------------- */
/*----------------------------------------------------------------------
Function Prototypes
------------------- */
/*----------------------------------------------------------------------
Vars
---- */
static const int s_RenderBBoxX0=0;
static const int s_RenderBBoxX1=512;
static const int s_RenderBBoxY0=0;
static const int s_RenderBBoxY1=256;
static const int s_ThinkBBoxX0=0-256;
static const int s_ThinkBBoxX1=512+526;
static const int s_ThinkBBoxY0=0-128;
static const int s_ThinkBBoxY1=256+128;
CThing *CThingManager::s_thingLists[CThing::MAX_TYPE];
CThing *CThingManager::s_CollisionLists[CThing::MAX_TYPE];
int CThingManager::s_initialised=false;
sBBox CThingManager::m_RenderBBox;
sBBox CThingManager::m_ThinkBBox;
#ifdef USE_FREE_LIST
CThing **CThingManager::s_FreeList[CThing::MAX_TYPE];
CThing *DuffList;
int FreeListCount=0;
int DuffListCount=0;
struct sFreeListTable
{
u16 Type;
u16 Count;
};
static const sFreeListTable FreeListTable[]=
{
/* 0*/ {CThing::TYPE_PICKUP ,CBasePickup::MAX_SUBTYPE},
/* 1*/ {CThing::TYPE_PLATFORM ,CNpcPlatform::MAX_SUBTYPE},
/* 2*/ {CThing::TYPE_PLAYER ,CPlayerThing::MAX_SUBTYPE},
/* 3*/ {CThing::TYPE_PLAYERPROJECTILE ,CPlayerProjectile::MAX_SUBTYPE},
/* 4*/ {CThing::TYPE_NPC ,CNpcFriend::MAX_SUBTYPE},
/* 5*/ {CThing::TYPE_ENEMY ,CNpcEnemy::MAX_SUBTYPE},
/* 6*/ {CThing::TYPE_ENEMYPROJECTILE ,CProjectile::MAX_SUBTYPE},
/* 7*/ {CThing::TYPE_TRIGGER ,CTrigger::MAX_SUBTYPE},
/* 8*/ {CThing::TYPE_HAZARD ,CNpcHazard::MAX_SUBTYPE},
/* 9*/ {CThing::TYPE_FX ,CFX::MAX_SUBTYPE},
};
static const int FreeListTableSize=sizeof(FreeListTable)/sizeof(sFreeListTable);
#endif
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::init()
{
ASSERT(!s_initialised);
initList(s_thingLists);
initList(s_CollisionLists);
initFreeList();
s_initialised=true;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::shutdown()
{
int i;
CThing *thing;
ASSERT(s_initialised);
for(i=0;i<CThing::MAX_TYPE;i++)
{
while(s_thingLists[i])
{
thing=s_thingLists[i];
thing->shutdown();
DeleteThing(thing);
}
}
s_initialised=false;
shutdownFreeList();
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::initList(CThing **List)
{
int i;
for(i=0 ;i<CThing::MAX_TYPE; i++)
{
List[i]=NULL;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::killAllThingsForRespawn()
{
int i;
ASSERT(s_initialised);
for(i=0;i<CThing::MAX_TYPE;i++)
{
// Hey - it's not optimal in speed, but it's vaguely funny :)
// ( and anyway.. it probly *is* optimal in size.. )
CThing *thing;
thing=s_thingLists[i];
while(thing)
{
if(thing->dontKillDuringLevelRespawn())
{
thing=thing->m_nextListThing;
}
else
{
thing->shutdown();
DeleteThing(thing);
thing=s_thingLists[i];
}
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::initAllThings()
{
for(int i=0; i<CThing::MAX_TYPE; i++)
{
CThing *thing=s_thingLists[i];
while(thing)
{
thing->updateCollisionArea();
thing=thing->m_nextListThing;
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::matchPressureSwitches()
{
CNpcHazard *hazard;
hazard = (CNpcHazard *) s_thingLists[CThing::TYPE_HAZARD];
while( hazard )
{
if ( hazard->getThingSubType() == CNpcHazard::NPC_PRESSURE_SWITCH_HAZARD )
{
CNpcPressureSwitchHazard *switchHazard = (CNpcPressureSwitchHazard *) hazard;
DVECTOR triggerPos = switchHazard->getTriggerPos();
CNpcPlatform *platform;
platform = (CNpcPlatform *) s_thingLists[CThing::TYPE_PLATFORM];
while( platform )
{
if ( platform->getThingSubType() == CNpcPlatform::NPC_TRAPDOOR_PLATFORM )
{
CNpcTrapdoorPlatform *trapdoor = (CNpcTrapdoorPlatform *) platform;
DVECTOR testPos = trapdoor->getTriggerPos();
if ( testPos.vx == triggerPos.vx && testPos.vy == triggerPos.vy )
{
switchHazard->linkToPlatform( trapdoor );
}
}
platform = (CNpcPlatform *) platform->m_nextListThing;
}
}
hazard = (CNpcHazard *) hazard->m_nextListThing;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::matchWheelsAndWeights()
{
CNpcHazard *hazard1;
CNpcHazard *hazard2;
hazard1 = (CNpcHazard *) s_thingLists[CThing::TYPE_HAZARD];
while( hazard1 )
{
if ( hazard1->getThingSubType() == CNpcHazard::NPC_RISING_WEIGHT_HAZARD )
{
CNpcRisingWeightHazard *weight = (CNpcRisingWeightHazard *) hazard1;
DVECTOR wheelPos = weight->getWheelPos();
hazard2 = (CNpcHazard *) s_thingLists[CThing::TYPE_HAZARD];
while( hazard2 )
{
if ( hazard2->getThingSubType() == CNpcHazard::NPC_RISING_WEIGHT_WHEEL_HAZARD )
{
CNpcRisingWeightWheelHazard *wheel = (CNpcRisingWeightWheelHazard *) hazard2;
DVECTOR testPos = wheel->getWheelPos();
if ( testPos.vx == wheelPos.vx && testPos.vy == wheelPos.vy )
{
wheel->linkToWeight( weight );
}
}
hazard2 = (CNpcHazard *) hazard2->m_nextListThing;
}
}
hazard1 = (CNpcHazard *) hazard1->m_nextListThing;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::matchGaryTriggers()
{
CNpcFriend *friendNpc;
friendNpc = (CNpcFriend *) s_thingLists[CThing::TYPE_NPC];
while( friendNpc )
{
if ( friendNpc->getThingSubType() == CNpcFriend::NPC_FRIEND_GARY )
{
CNpcGaryFriend *gary = (CNpcGaryFriend *) friendNpc;
DVECTOR triggerPos = gary->getTriggerPos();
CTrigger *trigger;
trigger = (CTrigger *) s_thingLists[CThing::TYPE_TRIGGER];
while( trigger )
{
if ( trigger->getThingSubType() == CTrigger::TRIGGER_GARY_START )
{
CGaryStartTrigger *garyTrigger = (CGaryStartTrigger *) trigger;
DVECTOR testPos = garyTrigger->getPos();
testPos.vx >>= 4;
testPos.vy >>= 4;
if ( testPos.vx == triggerPos.vx && testPos.vy == triggerPos.vy )
{
garyTrigger->setGary( gary );
}
}
trigger = (CTrigger *) trigger->m_nextListThing;
}
}
friendNpc = (CNpcFriend *) friendNpc->m_nextListThing;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::thinkAllThings(int _frames)
{
// Setup Screen BBox's
DVECTOR const &CamPos=CLevel::getCameraPos();
m_ThinkBBox.XMin=s_ThinkBBoxX0+CamPos.vx;
m_ThinkBBox.XMax=s_ThinkBBoxX1+CamPos.vx;
m_ThinkBBox.YMin=s_ThinkBBoxY0+CamPos.vy;
m_ThinkBBox.YMax=s_ThinkBBoxY1+CamPos.vy;
int i;
CThing *thing;
CThing *thing1,*thing2,*playerThing;
initList(s_CollisionLists);
for(i=0; i<CThing::MAX_TYPE; i++)
{
thing=s_thingLists[i];
while(thing)
{
// Check If in Thinkable range
CRECT const *ThingRect= thing->getThinkBBox();
int lastFlag=thing->getThinkFlag()<<1;
int Flag=1;
// Will speed this up
if (!thing->alwaysThink())
{
if (ThingRect->x2<m_ThinkBBox.XMin || ThingRect->x1>m_ThinkBBox.XMax) Flag=0;
if (ThingRect->y2<m_ThinkBBox.YMin || ThingRect->y1>m_ThinkBBox.YMax) Flag=0;
}
thing->setThinkFlag(Flag);
if (Flag)
{
thing->think(_frames);
// thing->updateCollisionArea();
if (thing->canCollide())
{
CThingManager::addToCollisionList(thing);
}
}
Flag|=lastFlag;
switch (Flag)
{ // Last This
case 0: // 0 0
break;
case 1: // 0 1
thing->enterThingZone(_frames);
break;
case 2: // 1 0
thing->leftThingZone(_frames);
break;
case 3: // 1 1
break;
default:
ASSERT("Invalid Think State");
}
/* THIS WILL NOT STAY HERE, THINGS MUST BE INITIALISED CORRECTLY */
thing->updateCollisionArea();
thing=thing->m_nextListThing;
}
}
CPlayer *player = GameScene.getPlayer();
if ( player )
{
player->clearPlatform();
}
playerThing=s_CollisionLists[CThing::TYPE_PLAYER];
if (player && playerThing)
{
playerThing->setHasPlatformCollided( false );
// Player -> Platform collision
thing1=s_CollisionLists[CThing::TYPE_PLATFORM];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Pickup collision
thing1=s_CollisionLists[CThing::TYPE_PICKUP];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Enemy collision
thing1=s_CollisionLists[CThing::TYPE_ENEMY];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Friend collision
thing1=s_CollisionLists[CThing::TYPE_NPC];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Hazard collision
thing1=s_CollisionLists[CThing::TYPE_HAZARD];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Enemy projectile collision
thing1=s_CollisionLists[CThing::TYPE_ENEMYPROJECTILE];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Player -> Trigger collision
thing1=s_CollisionLists[CThing::TYPE_TRIGGER];
while(thing1)
{
if(thing1->checkCollisionAgainst(playerThing, _frames))
{
thing1->collidedWith(playerThing);
}
thing1=thing1->m_nextCollisionThing;
}
// Friend -> Trigger collision
thing1=s_CollisionLists[CThing::TYPE_TRIGGER];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_NPC];
while(thing2)
{
if(thing1->checkCollisionAgainst(thing2, _frames))
{
thing1->collidedWith(thing2);
}
thing2=thing2->m_nextCollisionThing;
}
thing1=thing1->m_nextCollisionThing;
}
// Enemy -> Trigger collision
thing1=s_CollisionLists[CThing::TYPE_TRIGGER];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_ENEMY];
while(thing2)
{
if(thing1->checkCollisionAgainst(thing2, _frames))
{
thing1->collidedWith(thing2);
}
thing2=thing2->m_nextCollisionThing;
}
thing1=thing1->m_nextCollisionThing;
}
// Enemy -> Player projectile collision
thing1=s_CollisionLists[CThing::TYPE_PLAYERPROJECTILE];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_ENEMY];
while(thing2)
{
if(thing1->checkCollisionAgainst(thing2, _frames))
{
thing1->collidedWith(thing2);
}
thing2=thing2->m_nextCollisionThing;
}
thing1=thing1->m_nextCollisionThing;
}
// Enemy -> Enemy collision
thing1=s_CollisionLists[CThing::TYPE_ENEMY];
while(thing1)
{
thing2=thing1->m_nextCollisionThing;//s_CollisionLists[CThing::TYPE_ENEMY];
while(thing2)
{
ASSERT(thing1 != thing2 );
// if ( thing1 != thing2 )
{
if (thing1->checkCollisionAgainst( thing2, _frames ) )
{
thing1->collidedWith( thing2 );
//thing2->collidedWith( thing1 );
}
}
thing2 = thing2->m_nextCollisionThing;
}
thing1 = thing1->m_nextCollisionThing;
}
// Hazard -> Platform collision
thing1=s_CollisionLists[CThing::TYPE_PLATFORM];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_HAZARD];
while(thing2)
{
if ( thing1 != thing2 )
{
if (thing1->checkCollisionAgainst( thing2, _frames ) )
{
thing1->collidedWith( thing2 );
//thing2->collidedWith( thing1 );
}
}
thing2 = thing2->m_nextCollisionThing;
}
thing1 = thing1->m_nextCollisionThing;
}
// Platform -> Player projectile collision
thing1=s_CollisionLists[CThing::TYPE_PLATFORM];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_PLAYERPROJECTILE];
while(thing2)
{
if(thing1->checkCollisionAgainst(thing2, _frames))
{
thing1->collidedWith(thing2);
}
thing2=thing2->m_nextCollisionThing;
}
thing1=thing1->m_nextCollisionThing;
}
// Friendly npc -> Platform projectile collision - first clear platforms
CNpcFriend *friendNpc = (CNpcFriend *) s_CollisionLists[CThing::TYPE_NPC];
while( friendNpc )
{
friendNpc->clearPlatform();
friendNpc = (CNpcFriend *) friendNpc->m_nextCollisionThing;
}
// now detect new platform
thing1=s_CollisionLists[CThing::TYPE_PLATFORM];
while(thing1)
{
thing2=s_CollisionLists[CThing::TYPE_NPC];
while(thing2)
{
if(thing1->checkCollisionAgainst(thing2, _frames))
{
thing1->collidedWith(thing2);
}
thing2=thing2->m_nextCollisionThing;
}
thing1=thing1->m_nextCollisionThing;
}
}
// Shut emm down, sh sh shut em down, we shutem down
for(i=0;i<CThing::MAX_TYPE;i++)
{
thing=s_thingLists[i];
CThing *nextThing = thing;
while(thing)
{
nextThing=thing->m_nextListThing;
if ( thing->isSetToShutdown() )
{
thing->shutdown();
DeleteThing(thing);
}
thing = nextThing;
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::renderAllThings()
{
// Setup Screen BBox's
DVECTOR const &CamPos=CLevel::getCameraPos();
m_RenderBBox.XMin=s_RenderBBoxX0+CamPos.vx;
m_RenderBBox.XMax=s_RenderBBoxX1+CamPos.vx;
m_RenderBBox.YMin=s_RenderBBoxY0+CamPos.vy;
m_RenderBBox.YMax=s_RenderBBoxY1+CamPos.vy;
for(int i=0;i<CThing::MAX_TYPE;i++)
{
CThing *thing=s_thingLists[i];
while(thing)
{
thing->render();
thing=thing->m_nextListThing;
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::processEventAllThings(GAME_EVENT _event,CThing *_sourceThing)
{
int i;
CThing *thing;
for(i=0;i<CThing::MAX_TYPE;i++)
{
thing=s_thingLists[i];
while(thing)
{
thing->processEvent(_event,_sourceThing);
thing=thing->m_nextListThing;
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose: Searches through a list of things to check for collision against an area.
The first time this is called, _continue should be false. If no colliding things are found then
NULL will be returned. If a colliding thing is found then it's address gets returned. To continue
searching through the list for the next colliding thing, call the function again with _continue set
to true.
NB: This function could probly cause weird bugs if not used properly! BE AWARE!
Params: *_area Area to check against
_type Type of thing to search for
_continue If false then the list is searched from the start, if true then the search continues
from the last thing that was found ( um.. see above )
Returns:
---------------------------------------------------------------------- */
CThing *CThingManager::checkCollisionAreaAgainstThings(CRECT *_area,int _type,int _continue)
{
static CThing *thing=NULL;
ASSERT(_type<CThing::MAX_TYPE);
if(_continue)
{
ASSERT(thing);
thing=thing->m_nextListThing;
}
else
{
thing=s_thingLists[_type];
}
while(thing)
{
if(thing->canCollide() && thing->checkCollisionAgainstArea(_area))
{
return thing;
}
thing=thing->m_nextListThing;
}
return NULL;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::addToThingList(CThing *_this)
{
int Type=_this->getThingType();
_this->m_nextListThing=s_thingLists[Type];
s_thingLists[Type]=_this;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::removeFromThingList(CThing *_this)
{
CThing *prevThing,*thing;
prevThing=NULL;
thing=s_thingLists[_this->getThingType()];
while(thing!=_this)
{
prevThing=thing;
thing=thing->m_nextListThing;
ASSERT(thing); // Not in the list!?!?
}
if(prevThing)
{
prevThing->m_nextListThing=_this->m_nextListThing;
}
else
{
s_thingLists[_this->getThingType()]=_this->m_nextListThing;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThingManager::addToCollisionList(CThing *thing)
{
int Type=thing->getThingType();
thing->m_nextCollisionThing=s_CollisionLists[Type];
s_CollisionLists[Type]=thing;
}
/********************************************************************/
/********************************************************************/
/*** Free List Stuff ************************************************/
/********************************************************************/
/********************************************************************/
void CThingManager::initFreeList()
{
#ifdef USE_FREE_LIST
// Make sure no-one is being naughty
ASSERT(FreeListTableSize==CThing::MAX_TYPE)
for (int i=0; i<FreeListTableSize; i++)
{
sFreeListTable const &ThisType=FreeListTable[i];
int Count=ThisType.Count;
CThing **List=(CThing**)MemAlloc(Count*sizeof(CThing**),"ThingCache");
for (int t=0; t<Count; t++)
{
List[t]=0;
}
s_FreeList[ThisType.Type]=List;
}
DuffList=0;
#endif
}
/********************************************************************/
void CThingManager::resetFreeList()
{
#ifdef USE_FREE_LIST
for (int i=0; i<FreeListTableSize; i++)
{
sFreeListTable const &ThisType=FreeListTable[i];
int Count=ThisType.Count;
CThing **List=s_FreeList[i];
for (int t=0; t<Count; t++)
{
CThing *ThisThing=List[t];
while (ThisThing)
{
CThing *Next=ThisThing->NextFreeThing;
delete ThisThing;
FreeListCount--;
ThisThing=Next;
}
List[t]=0;
}
}
CThing *Duff=DuffList;
while (Duff)
{
CThing *next=Duff->NextFreeThing;
delete Duff;
DuffListCount--;
Duff=next;
}
#endif
}
/********************************************************************/
void CThingManager::shutdownFreeList()
{
#ifdef USE_FREE_LIST
resetFreeList();
for (int i=0; i<FreeListTableSize; i++)
{
sFreeListTable const &ThisType=FreeListTable[i];
MemFree(s_FreeList[ThisType.Type]);
}
#endif
}
/********************************************************************/
CThing *CThingManager::GetThing(int Type,int SubType)
{
#ifdef USE_FREE_LIST
CThing **List=s_FreeList[Type];
CThing *Thing=List[SubType];
ASSERT(Type<CThing::MAX_TYPE);
ASSERT(SubType<FreeListTable[Type].Count);
if (Thing)
{
List[SubType]=Thing->NextFreeThing;
Thing->initDef();
Thing->NextFreeThing=0;
FreeListCount--;
}
return(Thing);
#else
return(0);
#endif
}
/********************************************************************/
void CThingManager::DeleteThing(CThing *Thing)
{
#ifdef USE_FREE_LIST
int Type=Thing->getThingType();
int SubType=Thing->getThingSubType();
CThing **List=s_FreeList[Type];
// Check its been aquired/set correctly
// ASSERT(SubType!=1234);
if (SubType!=1234)
{
Thing->NextFreeThing=List[SubType];
List[SubType]=Thing;
FreeListCount++;
}
else
{
printf("%i %i\n",Type,SubType);
ASSERT(!"Thing not Setup Correctly");
Thing->NextFreeThing=DuffList;
DuffList=Thing;
DuffListCount++;
}
#else
delete Thing;
#endif
}
/********************************************************************/
/********************************************************************/
/********************************************************************/
/********************************************************************/
/********************************************************************/
/********************************************************************/
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::init()
{
ParentThing=NULL;
NextThing=NULL;
NextFreeThing=0;
m_numChildren = 0;
Pos.vx=Pos.vy=10;
// These need to stay for init
setCollisionSize(20,20); // Some temporary defaults.. (pkg)
setCollisionCentreOffset(0,0);
// Add to thing list
CThingManager::addToThingList(this);
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::shutdown()
{
if (ParentThing)
{ // Is child
ParentThing->removeChild(this);
}
else
{ // Is Parent
removeAllChild();
}
// Remove from thing list
CThingManager::removeFromThingList(this);
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::think(int _frames)
{
PosDelta.vx=Pos.vx-PosLast.vx;
PosDelta.vy=Pos.vy-PosLast.vy;
PosLast=Pos;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
#if defined (__USER_paul__) || defined (__USER_charles__)
#define SHOW_BBOX 1
int showthings=true;
#endif
#if defined (__USER_daveo__)
#define SHOW_BBOX 1
int showthings=false;
#endif
void CThing::render()
{
// Check Is Onscreen
CRECT const *ThingRect= getRenderBBox();
sBBox &ScrBBox=CThingManager::getRenderBBox();
DVECTOR const &CamPos=CLevel::getCameraPos();
m_RenderPos.vx = Pos.vx - CamPos.vx;
m_RenderPos.vy = Pos.vy - CamPos.vy;
// Will speed this up
m_renderFlag=true;
if (ThingRect->x2<ScrBBox.XMin || ThingRect->x1>ScrBBox.XMax) m_renderFlag=false;
if (ThingRect->y2<ScrBBox.YMin || ThingRect->y1>ScrBBox.YMax) m_renderFlag=false;
/***/
#ifdef SHOW_BBOX
if(showthings) ShowBBox();
#endif
}
/****************************************************************************************/
#ifdef SHOW_BBOX
#include "gfx\prim.h"
void CThing::ShowBBox()
{
if(showthings)
{
DVECTOR const &ofs=CLevel::getCameraPos();
CRECT area;
area=getCollisionArea();
area.x1-=ofs.vx;
area.y1-=ofs.vy;
area.x2-=ofs.vx;
area.y2-=ofs.vy;
if(area.x1<=511&&area.x2>=0 && area.y1<=255&&area.y2>=0)
{
DrawLine(area.x1,area.y1,area.x2,area.y1,255,255,255,0);
DrawLine(area.x2,area.y1,area.x2,area.y2,255,255,255,0);
DrawLine(area.x2,area.y2,area.x1,area.y2,255,255,255,0);
DrawLine(area.x1,area.y2,area.x1,area.y1,255,255,255,0);
area.x1=Pos.vx-10-ofs.vx;
area.y1=Pos.vy-10-ofs.vy;
area.x2=Pos.vx+10-ofs.vx;
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);
}
}
}
#endif
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::addChild(CThing *Child)
{
CThing *List=NextThing;
if ( List )
{
// Find end of list
while (List->NextThing)
{
List=List->NextThing;
}
List->NextThing=Child;
Child->ParentThing=this;
m_numChildren++;
}
else
{
// List does not exist, create
NextThing = Child;
Child->ParentThing=this;
m_numChildren++;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::removeChild(CThing *Child)
{
CThing *List=NextThing;
CThing *Last=NULL;
// Find Child
while ( List != Child && List->NextThing )
{
Last = List;
List = List->NextThing;
}
// 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->NextThing = List->NextThing;
}
else
{
this->NextThing = List->NextThing;
}
m_numChildren--;
Child->ParentThing=NULL;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::removeAllChild()
{
CThing *List=NextThing;
while (List)
{
CThing *NextThing=List->NextThing;
List->ParentThing=NULL;
List->NextThing=NULL;
List=NextThing;
}
NextThing=NULL;
m_numChildren = 0;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CThing::deleteAllChild()
{
CThing *List=NextThing;
while (List)
{
CThing *NextThing=List->NextThing;
List->ParentThing=NULL;
List->NextThing=NULL;
List->shutdown();
CThingManager::DeleteThing(List);
List=NextThing;
}
NextThing=NULL;
m_numChildren = 0;
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
/*
bool CThing::hasChild(CThing *Child)
{
CThing *nextChild = NextThing;
while( nextChild )
{
if ( nextChild == Child )
{
return( true );
}
nextChild = nextChild->NextThing;
}
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:
---------------------------------------------------------------------- */
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