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#include "DrawSprite.h"
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#include "../Screen/ScreenData.h"
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DrawSprite::DrawSprite(){};
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DrawSprite::~DrawSprite(){};
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void DrawSprite::sprite(SGI *sgi, int xPosition, int yPosition)
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{
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sprite(ScreenData::getChunkyBuffer(), xPosition, yPosition, ScreenData::getWidth(), ScreenData::getHeight(), sgi->getBuffer(), sgi->getWidth(), sgi->getHeight(), ScreenData::getWidth(), ScreenData::getHeight(), 0, 0, ScreenData::getBitPlan());
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}
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void DrawSprite::sprite(int *chunkybuffer, int xp, int yp, int scwidth, int scheight, int *spritedata, int spritewidth, int spriteheight, int width, int height, int scrollxadd, int scrollyadd , int bitplan)
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{
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unsigned char *cchunkybuffer=(unsigned char*)chunkybuffer;
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unsigned char *cspritedata=(unsigned char*)spritedata;
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int xc,yc,xs,ys;
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int cb=0;
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int sd=0;
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if ( xp < width && xp >= -spritewidth)
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{
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if ( yp < height && yp >= -spriteheight)
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{
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cb+=xp;
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cb+=(yp*width);
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xc=spritewidth;
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if ( xp < 0 )
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{
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cb-=xp;
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xc+=xp;
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sd-=xp;
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}
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if ( (xp+xc) > scwidth )
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{
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xs = (xp+xc) - scwidth;
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xc-=xs;
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}
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yc=spriteheight;
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if ( yp < 0 )
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{
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cb-=(yp*width);
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yc = yc + yp;
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sd-=(yp*spritewidth);
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}
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if ( (yp+yc) > scheight )
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{
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ys = (yp+yc) - scheight;
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yc-=ys;
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}
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cb+=scrollxadd;
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cb+=scrollyadd*width;
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if ( bitplan == 8 )
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{
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sprite_8(cchunkybuffer, cspritedata, xc, yc, spritewidth, width, cb, sd );
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}
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if ( bitplan == 32 )
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{
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sprite_32(chunkybuffer, spritedata, xc, yc, spritewidth, width, cb, sd );
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}
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}
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}
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}
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void DrawSprite::sprite_8(unsigned char *cchunkybuffer, unsigned char *cspritedata, int xc, int yc, int spritewidth, int width, int cb, int sd )
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{
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for ( int d6l=0 ; d6l<yc; d6l++ )
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{
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for ( int d7l=0 ;d7l<xc ; d7l++ )
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{
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if ( cspritedata[sd] != 0 )
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{
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cchunkybuffer[cb]=cspritedata[sd];
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}
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cb++;
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sd++;
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}
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sd+=(spritewidth-xc);
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cb+=(width-xc);
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}
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}
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void DrawSprite::sprite_32(int *chunkybuffer, int *spritedata, int xc, int yc, int spritewidth, int width, int cb, int sd )
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{
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for ( int d6l=0 ; d6l<yc; d6l++ )
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{
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for ( int d7l=0 ;d7l<xc ; d7l++ )
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{
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if ( spritedata[sd] != 0 )
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{
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chunkybuffer[cb]=spritedata[sd];
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}
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cb++;
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sd++;
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}
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sd+=(spritewidth-xc);
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cb+=(width-xc);
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}
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}
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void DrawSprite::sprite2(int *chunkybuffer, int xp, int yp, int scwidth, int scheight, int *spritedata, int spritewidth, int spriteheight, int width, int height, int scrollxadd, int scrollyadd , int bitplan)
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{
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unsigned char *cchunkybuffer=(unsigned char*)chunkybuffer;
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unsigned char *cspritedata=(unsigned char*)spritedata;
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int xc,yc,xs,ys;
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int cb=0;
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int sd=0;
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if ( xp < width && xp >= -spritewidth)
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{
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if ( yp < height && yp >= -spriteheight)
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{
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cb+=xp;
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cb+=(yp*width);
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xc=spritewidth;
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if ( xp < 0 )
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{
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cb-=xp;
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xc+=xp;
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sd-=xp;
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}
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if ( (xp+xc) > scwidth )
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{
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xs=(xp+xc) - scwidth;
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xc-=xs;
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}
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yc=spriteheight;
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if ( yp < 0 )
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{
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cb-=(yp*width);
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yc+=yp;
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sd-=(yp*spritewidth);
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}
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if ( (yp+yc) > scheight )
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{
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ys = (yp+yc) - scheight;
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yc-=ys;
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}
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cb+=scrollxadd;
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cb+=scrollyadd*width;
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if ( bitplan == 8 )
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{
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sprite2_8(cchunkybuffer, cspritedata, xc, yc, spritewidth, width, cb, sd );
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}
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if ( bitplan == 32 )
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{
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sprite_32(chunkybuffer, spritedata, xc, yc, spritewidth, width, cb, sd );
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}
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}
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}
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}
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void DrawSprite::sprite2_8(unsigned char *cchunkybuffer, unsigned char *cspritedata, int xc, int yc, int spritewidth, int width, int cb, int sd )
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{
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int ixc=xc/4;
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int cxc=xc-(ixc*4);
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cchunkybuffer+=cb;
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cspritedata+=sd;
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int cwidth=width-xc;
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int cspritewidth=spritewidth-xc;
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for ( int d6l=0 ; d6l<yc; d6l++ )
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{
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int *intchunkybuffer=(int*)cchunkybuffer;
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int *intspritedata=(int*)cspritedata;
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for ( int d7l=0 ;d7l<ixc ; d7l++ )
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{
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intchunkybuffer[0]=intspritedata[0];
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intchunkybuffer++;
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intspritedata++;
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}
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cchunkybuffer=(unsigned char*)intchunkybuffer;
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cspritedata=(unsigned char*)intspritedata;
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for ( int d3l=0 ;d3l<cxc ; d3l++ )
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{
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cchunkybuffer[0]=cspritedata[0];
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cchunkybuffer++;
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cspritedata++;
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}
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cchunkybuffer+=cwidth;
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cspritedata+=cspritewidth;
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}
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}
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void DrawSprite::sprite2_32(int *chunkybuffer, int *spritedata, int xc, int yc, int spritewidth, int width, int cb, int sd )
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{
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for ( int d6l=0 ; d6l<yc; d6l++ )
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{
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for ( int d7l=0 ;d7l<xc ; d7l++ )
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{
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chunkybuffer[cb]=spritedata[sd];
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cb++;
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sd++;
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}
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sd+=(spritewidth-xc);
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cb+=(width-xc);
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}
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}
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void DrawSprite::clearScreen(int *chunkybuffer, int screenwidth, int screenheight, int colour, int bitplan)
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{
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if ( bitplan == 8 )
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{
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char *cchunkybuffer=(char*)chunkybuffer;
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char ccolour=(char)colour;
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for ( int y=0 ; y<screenheight ; y++ )
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{
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for ( int x=0; x<screenwidth ; x++ )
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{
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cchunkybuffer[x+y*screenwidth]=ccolour;
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}
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}
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}
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if ( bitplan == 32 )
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{
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for ( int y=0 ; y<screenheight ; y++ )
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{
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for ( int x=0; x<screenwidth ; x++ )
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{
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chunkybuffer[x+y*screenwidth]=colour;
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}
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}
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}
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}
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