259 lines
7.4 KiB
C++
259 lines
7.4 KiB
C++
#include "common.h"
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#include "main.h"
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#include "TxdStore.h"
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#include "Timer.h"
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#include "Replay.h"
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#include "Skidmarks.h"
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CSkidmark CSkidmarks::aSkidmarks[NUMSKIDMARKS];
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RwImVertexIndex SkidmarkIndexList[SKIDMARK_LENGTH * 6];
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RwIm3DVertex SkidmarkVertices[SKIDMARK_LENGTH * 2];
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RwTexture *gpSkidTex;
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RwTexture *gpSkidBloodTex;
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RwTexture *gpSkidMudTex;
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void
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CSkidmarks::Init(void)
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{
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int i, ix, slot;
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CTxdStore::PushCurrentTxd();
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slot = CTxdStore::FindTxdSlot("particle");
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CTxdStore::SetCurrentTxd(slot);
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gpSkidTex = RwTextureRead("particleskid", nil);
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gpSkidBloodTex = RwTextureRead("particleskidblood", nil);
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gpSkidMudTex = RwTextureRead("particleskidmud", nil);
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CTxdStore::PopCurrentTxd();
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for(i = 0; i < NUMSKIDMARKS; i++){
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aSkidmarks[i].m_state = 0;
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aSkidmarks[i].m_wasUpdated = false;
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}
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ix = 0;
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for(i = 0; i < SKIDMARK_LENGTH; i++){
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SkidmarkIndexList[i*6+0] = ix+0;
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SkidmarkIndexList[i*6+1] = ix+2;
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SkidmarkIndexList[i*6+2] = ix+1;
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SkidmarkIndexList[i*6+3] = ix+1;
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SkidmarkIndexList[i*6+4] = ix+2;
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SkidmarkIndexList[i*6+5] = ix+3;
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ix += 2;
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}
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for(i = 0; i < SKIDMARK_LENGTH; i++){
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RwIm3DVertexSetU(&SkidmarkVertices[i*2 + 0], 0.0f);
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RwIm3DVertexSetV(&SkidmarkVertices[i*2 + 0], i*5.01f);
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RwIm3DVertexSetU(&SkidmarkVertices[i*2 + 1], 1.0f);
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RwIm3DVertexSetV(&SkidmarkVertices[i*2 + 1], i*5.01f);
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}
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}
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void
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CSkidmarks::Shutdown(void)
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{
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RwTextureDestroy(gpSkidTex);
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#if GTA_VERSION >= GTA3_PC_11
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gpSkidTex = nil;
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#endif
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RwTextureDestroy(gpSkidBloodTex);
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#if GTA_VERSION >= GTA3_PC_11
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gpSkidBloodTex = nil;
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#endif
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RwTextureDestroy(gpSkidMudTex);
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#if GTA_VERSION >= GTA3_PC_11
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gpSkidMudTex = nil;
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#endif
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}
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void
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CSkidmarks::Clear(void)
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{
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int i;
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for(i = 0; i < NUMSKIDMARKS; i++){
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aSkidmarks[i].m_state = 0;
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aSkidmarks[i].m_wasUpdated = false;
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}
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}
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void
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CSkidmarks::Update(void)
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{
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int i;
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uint32 t1 = CTimer::GetTimeInMilliseconds() + 2500;
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uint32 t2 = CTimer::GetTimeInMilliseconds() + 5000;
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uint32 t3 = CTimer::GetTimeInMilliseconds() + 10000;
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uint32 t4 = CTimer::GetTimeInMilliseconds() + 20000;
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for(i = 0; i < NUMSKIDMARKS; i++){
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switch(aSkidmarks[i].m_state){
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case 1:
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if(!aSkidmarks[i].m_wasUpdated){
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// Didn't continue this one last time, so finish it and set fade times
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aSkidmarks[i].m_state = 2;
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if(aSkidmarks[i].m_last < 4){
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aSkidmarks[i].m_fadeStart = t1;
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aSkidmarks[i].m_fadeEnd = t2;
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}else if(aSkidmarks[i].m_last < 9){
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aSkidmarks[i].m_fadeStart = t2;
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aSkidmarks[i].m_fadeEnd = t3;
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}else{
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aSkidmarks[i].m_fadeStart = t3;
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aSkidmarks[i].m_fadeEnd = t4;
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}
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}
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break;
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case 2:
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if(CTimer::GetTimeInMilliseconds() > aSkidmarks[i].m_fadeEnd)
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aSkidmarks[i].m_state = 0;
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break;
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}
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aSkidmarks[i].m_wasUpdated = false;
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}
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}
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void
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CSkidmarks::Render(void)
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{
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int i, j;
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RwTexture *lastTex = nil;
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RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)FALSE);
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RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)TRUE);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
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for(i = 0; i < NUMSKIDMARKS; i++){
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if(aSkidmarks[i].m_state == 0 || aSkidmarks[i].m_last < 1)
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continue;
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if(aSkidmarks[i].m_isBloody){
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if(lastTex != gpSkidBloodTex){
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpSkidBloodTex));
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lastTex = gpSkidBloodTex;
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}
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}else if(aSkidmarks[i].m_isMuddy){
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if(lastTex != gpSkidMudTex){
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpSkidMudTex));
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lastTex = gpSkidMudTex;
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}
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}else{
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if(lastTex != gpSkidTex){
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpSkidTex));
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lastTex = gpSkidTex;
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}
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}
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uint32 fade, alpha;
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if(aSkidmarks[i].m_state == 1 || CTimer::GetTimeInMilliseconds() < aSkidmarks[i].m_fadeStart)
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fade = 255;
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else
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fade = 255*(aSkidmarks[i].m_fadeEnd - CTimer::GetTimeInMilliseconds()) / (aSkidmarks[i].m_fadeEnd - aSkidmarks[i].m_fadeStart);
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for(j = 0; j <= aSkidmarks[i].m_last; j++){
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alpha = 128;
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if(j == 0 || j == aSkidmarks[i].m_last && aSkidmarks[i].m_state == 2)
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alpha = 0;
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alpha = alpha*fade/256;
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CVector p1 = aSkidmarks[i].m_pos[j] + aSkidmarks[i].m_side[j];
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CVector p2 = aSkidmarks[i].m_pos[j] - aSkidmarks[i].m_side[j];
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RwIm3DVertexSetRGBA(&SkidmarkVertices[j*2+0], 255, 255, 255, alpha);
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RwIm3DVertexSetPos(&SkidmarkVertices[j*2+0], p1.x, p1.y, p1.z+0.1f);
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RwIm3DVertexSetRGBA(&SkidmarkVertices[j*2+1], 255, 255, 255, alpha);
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RwIm3DVertexSetPos(&SkidmarkVertices[j*2+1], p2.x, p2.y, p2.z+0.1f);
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}
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LittleTest();
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if(RwIm3DTransform(SkidmarkVertices, 2*(aSkidmarks[i].m_last+1), nil, rwIM3D_VERTEXUV)){
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RwIm3DRenderIndexedPrimitive(rwPRIMTYPETRILIST, SkidmarkIndexList, 6*aSkidmarks[i].m_last);
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RwIm3DEnd();
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}
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}
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RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)FALSE);
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RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)TRUE);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)TRUE);
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}
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void
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CSkidmarks::RegisterOne(uintptr id, CVector pos, float fwdX, float fwdY, bool *isMuddy, bool *isBloody)
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{
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int i;
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CVector2D fwd(fwdX, fwdY);
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if(CReplay::IsPlayingBack())
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return;
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// Find a skidmark to continue
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for(i = 0; i < NUMSKIDMARKS; i++)
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if(aSkidmarks[i].m_state == 1 && aSkidmarks[i].m_id == id)
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break;
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if(i < NUMSKIDMARKS){
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// Continue this one
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if(aSkidmarks[i].m_isBloody != *isBloody){
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// Blood-status changed, end this one
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aSkidmarks[i].m_state = 2;
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aSkidmarks[i].m_fadeStart = CTimer::GetTimeInMilliseconds() + 10000;
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aSkidmarks[i].m_fadeEnd = CTimer::GetTimeInMilliseconds() + 20000;
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return;
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}
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aSkidmarks[i].m_wasUpdated = true;
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if(CTimer::GetTimeInMilliseconds() - aSkidmarks[i].m_lastUpdate <= 100){
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// Last update was recently, just change last coords
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aSkidmarks[i].m_pos[aSkidmarks[i].m_last] = pos;
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return;
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}
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aSkidmarks[i].m_lastUpdate = CTimer::GetTimeInMilliseconds();
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if(aSkidmarks[i].m_last >= SKIDMARK_LENGTH-1){
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// No space to continue, end it
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aSkidmarks[i].m_state = 2;
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aSkidmarks[i].m_fadeStart = CTimer::GetTimeInMilliseconds() + 10000;
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aSkidmarks[i].m_fadeEnd = CTimer::GetTimeInMilliseconds() + 20000;
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*isBloody = false; // stpo blood marks at end
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return;
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}
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aSkidmarks[i].m_last++;
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aSkidmarks[i].m_pos[aSkidmarks[i].m_last] = pos;
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CVector2D right(aSkidmarks[i].m_pos[aSkidmarks[i].m_last].y - aSkidmarks[i].m_pos[aSkidmarks[i].m_last - 1].y,
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aSkidmarks[i].m_pos[aSkidmarks[i].m_last - 1].x - aSkidmarks[i].m_pos[aSkidmarks[i].m_last].x);
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right.NormaliseSafe();
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fwd.NormaliseSafe();
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float turn = DotProduct2D(fwd, right);
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turn = Abs(turn) + 1.0f;
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aSkidmarks[i].m_side[aSkidmarks[i].m_last] = CVector(right.x, right.y, 0.0f) * turn * 0.125f;
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if(aSkidmarks[i].m_last == 1)
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aSkidmarks[i].m_side[0] = aSkidmarks[i].m_side[1];
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if(aSkidmarks[i].m_last > 8)
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*isBloody = false; // stop blood marks after 8
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return;
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}
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// Start a new one
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for(i = 0; i < NUMSKIDMARKS; i++)
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if(aSkidmarks[i].m_state == 0)
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break;
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if(i < NUMSKIDMARKS){
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// Found a free slot
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aSkidmarks[i].m_state = 1;
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aSkidmarks[i].m_id = id;
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aSkidmarks[i].m_pos[0] = pos;
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aSkidmarks[i].m_side[0] = CVector(0.0f, 0.0f, 0.0f);
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aSkidmarks[i].m_wasUpdated = true;
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aSkidmarks[i].m_last = 0;
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aSkidmarks[i].m_lastUpdate = CTimer::GetTimeInMilliseconds() - 1000;
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aSkidmarks[i].m_isBloody = *isBloody;
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aSkidmarks[i].m_isMuddy = *isMuddy;
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}else
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*isBloody = false; // stop blood marks if no space
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}
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