#include "common.h"
#include "patcher.h"
#include "Building.h"
#include "Treadable.h"
#include "Pools.h"
#include "Timer.h"
#include "Camera.h"
#include "World.h"
#include "CullZones.h"
int32 &CCullZones::NumCullZones = *(int*)0x8F2564;
CCullZone *CCullZones::aZones = (CCullZone*)0x864750; // [NUMCULLZONES];
int32 &CCullZones::NumAttributeZones = *(int*)0x8E29D0;
CAttributeZone *CCullZones::aAttributeZones = (CAttributeZone*)0x709C60; // [NUMATTRIBZONES];
uint16 *CCullZones::aIndices = (uint16*)0x847330; // [NUMZONEINDICES];
int16 *CCullZones::aPointersToBigBuildingsForBuildings = (int16*)0x86C9D0; // [NUMBUILDINGS];
int16 *CCullZones::aPointersToBigBuildingsForTreadables = (int16*)0x8F1B8C; // [NUMTREADABLES];
int32 &CCullZones::CurrentWantedLevelDrop_Player = *(int32*)0x880DA8;
int32 &CCullZones::CurrentFlags_Camera = *(int32*)0x940718;
int32 &CCullZones::CurrentFlags_Player = *(int32*)0x9415F0;
int32 &CCullZones::OldCullZone = *(int32*)0x8E2C90;
int32 &CCullZones::EntityIndicesUsed = *(int32*)0x8F2508;
bool &CCullZones::bCurrentSubwayIsInvisible = *(bool*)0x95CDA5;
bool &CCullZones::bCullZonesDisabled = *(bool*)0x95CD4A;
void
CCullZones::Init(void)
{
int i;
NumAttributeZones = 0;
NumCullZones = 0;
CurrentWantedLevelDrop_Player = 0;
CurrentFlags_Camera = 0;
CurrentFlags_Player = 0;
OldCullZone = -1;
EntityIndicesUsed = 0;
bCurrentSubwayIsInvisible = false;
for(i = 0; i < NUMBUILDINGS; i++)
aPointersToBigBuildingsForBuildings[i] = -1;
for(i = 0; i < NUMTREADABLES; i++)
aPointersToBigBuildingsForTreadables[i] = -1;
}
void
CCullZones::Update(void)
{
bool invisible;
CVector v;
if(bCullZonesDisabled)
return;
switch(CTimer::GetFrameCounter() & 7){
case 0:
case 4:
/* Update Cull zone */
ForceCullZoneCoors(TheCamera.GetGameCamPosition());
break;
case 2:
/* Update camera attributes */
CurrentFlags_Camera = FindAttributesForCoors(TheCamera.GetGameCamPosition(), nil);
invisible = (CurrentFlags_Camera & ATTRZONE_SUBWAYVISIBLE) == 0;
if(invisible != bCurrentSubwayIsInvisible){
MarkSubwayAsInvisible(!invisible);
bCurrentSubwayIsInvisible = invisible;
}
break;
case 6:
/* Update player attributes */
CurrentFlags_Player = FindAttributesForCoors(FindPlayerCoors(v),
&CurrentWantedLevelDrop_Player);
break;
}
}
void
CCullZones::ForceCullZoneCoors(CVector coors)
{
int32 z;
z = FindCullZoneForCoors(coors);
if(z != OldCullZone){
if(OldCullZone >= 0)
aZones[OldCullZone].DoStuffLeavingZone();
if(z >= 0)
aZones[z].DoStuffEnteringZone();
OldCullZone = z;
}
}
int32
CCullZones::FindCullZoneForCoors(CVector coors)
{
int i;
for(i = 0; i < NumCullZones; i++)
if(coors.x >= aZones[i].minx && coors.x <= aZones[i].maxx &&
coors.y >= aZones[i].miny && coors.y <= aZones[i].maxy &&
coors.z >= aZones[i].minz && coors.z <= aZones[i].maxz)
return i;
return -1;
}
int32
CCullZones::FindAttributesForCoors(CVector coors, int32 *wantedLevel)
{
int i;
int32 attribs;
attribs = 0;
for(i = 0; i < NumAttributeZones; i++)
if(coors.x >= aAttributeZones[i].minx && coors.x <= aAttributeZones[i].maxx &&
coors.y >= aAttributeZones[i].miny && coors.y <= aAttributeZones[i].maxy &&
coors.z >= aAttributeZones[i].minz && coors.z <= aAttributeZones[i].maxz){
attribs |= aAttributeZones[i].attributes;
if(wantedLevel && *wantedLevel <= aAttributeZones[i].wantedLevel)
*wantedLevel = aAttributeZones[i].wantedLevel;
}
return attribs;
}
CAttributeZone*
CCullZones::FindZoneWithStairsAttributeForPlayer(void)
{
int i;
CVector coors;
FindPlayerCoors(coors);
for(i = 0; i < NumAttributeZones; i++)
if(aAttributeZones[i].attributes & ATTRZONE_STAIRS &&
coors.x >= aAttributeZones[i].minx && coors.x <= aAttributeZones[i].maxx &&
coors.y >= aAttributeZones[i].miny && coors.y <= aAttributeZones[i].maxy &&
coors.z >= aAttributeZones[i].minz && coors.z <= aAttributeZones[i].maxz)
return &aAttributeZones[i];
return nil;
}
WRAPPER void
CCullZones::MarkSubwayAsInvisible(bool visible)
{ EAXJMP(0x525AF0);
}
void
CCullZones::AddCullZone(CVector const &position,
float minx, float maxx,
float miny, float maxy,
float minz, float maxz,
uint16 flag, int16 wantedLevel)
{
CCullZone *cull;
CAttributeZone *attrib;
CVector v;
if((flag & ATTRZONE_NOTCULLZONE) == 0){
cull = &aZones[NumCullZones++];
v = position;
// WTF is this?
if((v-CVector(1032.14f, -624.255f, 24.93f)).Magnitude() < 1.0f)
v = CVector(1061.7f, -613.0f, 19.0f);
if((v-CVector(1029.48f, -495.757f, 21.98f)).Magnitude() < 1.0f)
v = CVector(1061.4f, -506.0f, 18.5f);
cull->position.x = clamp(v.x, minx, maxx);
cull->position.y = clamp(v.y, miny, maxy);
cull->position.z = clamp(v.z, minz, maxz);
cull->minx = minx;
cull->maxx = maxx;
cull->miny = miny;
cull->maxy = maxy;
cull->minz = minz;
cull->maxz = maxz;
cull->unk2 = 0;
cull->unk3 = 0;
cull->unk4 = 0;
cull->m_indexStart = 0;
}
if(flag & ~ATTRZONE_NOTCULLZONE){
attrib = &aAttributeZones[NumAttributeZones++];
attrib->minx = minx;
attrib->maxx = maxx;
attrib->miny = miny;
attrib->maxy = maxy;
attrib->minz = minz;
attrib->maxz = maxz;
attrib->attributes = flag;
attrib->wantedLevel = wantedLevel;
}
}
void
CCullZone::DoStuffLeavingZone(void)
{
int i;
for(i = 0; i < m_numBuildings; i++)
DoStuffLeavingZone_OneBuilding(CCullZones::aIndices[m_indexStart + i]);
for(; i < m_numBuildings + m_numTreadablesPlus10m + m_numTreadables ; i++)
DoStuffLeavingZone_OneTreadableBoth(CCullZones::aIndices[m_indexStart + i]);
}
void
CCullZone::DoStuffLeavingZone_OneBuilding(uint16 i)
{
int16 bb;
int j;
if(i < 6000){
CPools::GetBuildingPool()->GetSlot(i)->m_bZoneCulled = false;
bb = CCullZones::aPointersToBigBuildingsForBuildings[i];
if(bb != -1)
CPools::GetBuildingPool()->GetSlot(bb)->m_bZoneCulled = false;
}else{
i -= 6000;
for(j = 0; j < 3; j++)
DoStuffLeavingZone_OneBuilding(CCullZones::aIndices[i+j]);
}
}
void
CCullZone::DoStuffLeavingZone_OneTreadableBoth(uint16 i)
{
int16 bb;
int j;
if(i < 6000){
CPools::GetTreadablePool()->GetSlot(i)->m_bZoneCulled = false;
CPools::GetTreadablePool()->GetSlot(i)->m_bZoneCulled2 = false;
bb = CCullZones::aPointersToBigBuildingsForTreadables[i];
if(bb != -1)
CPools::GetBuildingPool()->GetSlot(bb)->m_bZoneCulled = false;
}else{
i -= 6000;
for(j = 0; j < 3; j++)
DoStuffLeavingZone_OneTreadableBoth(CCullZones::aIndices[i+j]);
}
}
void
CCullZone::DoStuffEnteringZone(void)
{
int i;
for(i = 0; i < m_numBuildings; i++)
DoStuffEnteringZone_OneBuilding(CCullZones::aIndices[m_indexStart + i]);
for(; i < m_numBuildings + m_numTreadablesPlus10m; i++)
DoStuffEnteringZone_OneTreadablePlus10m(CCullZones::aIndices[m_indexStart + i]);
for(; i < m_numBuildings + m_numTreadablesPlus10m + m_numTreadables; i++)
DoStuffEnteringZone_OneTreadable(CCullZones::aIndices[m_indexStart + i]);
}
void
CCullZone::DoStuffEnteringZone_OneBuilding(uint16 i)
{
int16 bb;
int j;
if(i < 6000){
CPools::GetBuildingPool()->GetSlot(i)->m_bZoneCulled = true;
bb = CCullZones::aPointersToBigBuildingsForBuildings[i];
if(bb != -1)
CPools::GetBuildingPool()->GetSlot(bb)->m_bZoneCulled = true;
}else{
i -= 6000;
for(j = 0; j < 3; j++)
DoStuffLeavingZone_OneBuilding(CCullZones::aIndices[i+j]);
}
}
void
CCullZone::DoStuffEnteringZone_OneTreadablePlus10m(uint16 i)
{
int16 bb;
int j;
if(i < 6000){
CPools::GetTreadablePool()->GetSlot(i)->m_bZoneCulled = true;;
CPools::GetTreadablePool()->GetSlot(i)->m_bZoneCulled2 = true;;
bb = CCullZones::aPointersToBigBuildingsForTreadables[i];
if(bb != -1)
CPools::GetBuildingPool()->GetSlot(bb)->m_bZoneCulled = true;
}else{
i -= 6000;
for(j = 0; j < 3; j++)
DoStuffLeavingZone_OneBuilding(CCullZones::aIndices[i+j]);
}
}
void
CCullZone::DoStuffEnteringZone_OneTreadable(uint16 i)
{
int16 bb;
int j;
if(i < 6000){
CPools::GetTreadablePool()->GetSlot(i)->m_bZoneCulled = true;;
bb = CCullZones::aPointersToBigBuildingsForTreadables[i];
if(bb != -1)
CPools::GetBuildingPool()->GetSlot(bb)->m_bZoneCulled = true;
}else{
i -= 6000;
for(j = 0; j < 3; j++)
DoStuffLeavingZone_OneBuilding(CCullZones::aIndices[i+j]);
}
}
STARTPATCHES
InjectHook(0x524BC0, &CCullZones::Init, PATCH_JUMP);
InjectHook(0x524F80, &CCullZones::Update, PATCH_JUMP);
InjectHook(0x525370, &CCullZones::AddCullZone, PATCH_JUMP);
InjectHook(0x5250D0, &CCullZones::ForceCullZoneCoors, PATCH_JUMP);
InjectHook(0x525130, &CCullZones::FindCullZoneForCoors, PATCH_JUMP);
InjectHook(0x5251C0, &CCullZones::FindAttributesForCoors, PATCH_JUMP);
InjectHook(0x525290, &CCullZones::FindZoneWithStairsAttributeForPlayer, PATCH_JUMP);
InjectHook(0x525610, &CCullZone::DoStuffLeavingZone, PATCH_JUMP);
InjectHook(0x525810, &CCullZone::DoStuffEnteringZone, PATCH_JUMP);
ENDPATCHES
