142 lines
3 KiB
C++
142 lines
3 KiB
C++
/************************/
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/*** Cloud Base Class ***/
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/************************/
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#include "system\global.h"
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#include <DStructs.h>
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#include "utils\utils.h"
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#include "gfx\prim.h"
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#include "gfx\sprbank.h"
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#include <sprites.h>
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#include "level\level.h"
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#include "FX\FXcloud.h"
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DVECTOR SmokeVel;
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u16 AngleInc=16;
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u8 StartR=255;
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u8 StartG=255;
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u8 StartB=255;
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s8 RInc=-8;
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s8 BInc=-8;
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s8 GInc=-8;
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s16 StartScaleX=256;
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s16 ScaleXInc=256;
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s16 StartScaleY=256;
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s16 ScaleYInc=256;
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/*****************************************************************************/
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/*****************************************************************************/
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/*****************************************************************************/
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void CFXCloud::init(DVECTOR const &_Pos)
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{
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CFX::init();
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Pos=_Pos;
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HeadIdx=0;
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ListCount=1;
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Angle=0;
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}
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/*****************************************************************************/
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void CFXCloud::shutdown()
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{
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CFX::shutdown();
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}
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/*****************************************************************************/
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/*** Think *******************************************************************/
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/*****************************************************************************/
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int SS=4;
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void CFXCloud::think(int _frames)
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{
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int ThisIdx=HeadIdx;
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DVECTOR Vel=SmokeVel;
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if (Parent)
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{
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this->setPos(Parent->getPos());
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}
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CFX::think(_frames);
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HeadIdx--;
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if (HeadIdx<0) HeadIdx+=ListCount;
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if (Parent)
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{
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setPos(Parent->getPos());
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}
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List[HeadIdx].Ofs=getPos();
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for (int i=0; i<ListCount-1; i++)
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{
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sList &ThisElem=List[ThisIdx++];
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ThisIdx&=MAX_TRAIL-1;
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ThisElem.Ofs.vx+=Vel.vx>>SS;
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ThisElem.Ofs.vy+=Vel.vy>>SS;
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Vel.vx+=SmokeVel.vx;
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Vel.vy+=SmokeVel.vy;
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}
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ListCount++;
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if (ListCount>MAX_TRAIL)
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{
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ListCount=MAX_TRAIL;
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}
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}
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/*****************************************************************************/
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/*** Render ******************************************************************/
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/*****************************************************************************/
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int ST=3;
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void CFXCloud::render()
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{
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CFX::render();
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if (canRender())
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{
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DVECTOR const &MapOfs=CLevel::getCameraPos();
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DVECTOR RenderPos;
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int ThisIdx=HeadIdx;
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int ThisAngle=Angle;
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int ThisScaleX=StartScaleX;
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int ThisScaleY=StartScaleY;
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u8 ThisR=StartR;
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u8 ThisG=StartG;
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u8 ThisB=StartB;
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for (int i=0; i<ListCount; i++)
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{
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sList &ThisOfs=List[ThisIdx];
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POLY_FT4 *Ft4;
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RenderPos.vx=ThisOfs.Ofs.vx-MapOfs.vx;
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RenderPos.vy=ThisOfs.Ofs.vy-MapOfs.vy;
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Ft4=m_spriteBank->printRotatedScaledSprite(FRM__SMOKE,RenderPos.vx,RenderPos.vy,ThisScaleX,ThisScaleY,ThisAngle,OtPos*0);
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setShadeTex(Ft4,0);
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setSemiTrans(Ft4,1);
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setRGB0(Ft4,ThisR,ThisB,ThisB);
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Ft4->tpage|=ST<<5;
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ThisR+=RInc;
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ThisG+=GInc;
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ThisB+=BInc;
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ThisAngle+=AngleInc;
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ThisAngle&=4095;
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ThisScaleX+=ScaleXInc;
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ThisScaleY+=ScaleYInc;
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ThisIdx++;
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ThisIdx&=MAX_TRAIL-1;
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}
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Angle+=AngleInc/2;
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Angle&=4095;
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}
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}
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