Page 151 - DCAP313_LAB_ON_COMPUTER_GRAPHICS

Unit 9: Translation

#defineESC0x1b Notes
#defineALT_X0x2d
longsize=0;
voidfar*buffer2=0;
voidfar*buffer1=0;
voiddraw_pixelbackground()
{
inti,xpos,ypos,color;
intxmax=getmaxx();
intymax=getmaxy();
setbkcolor(BLUE);
setcolor(WHITE);
rectangle(0,0,xmax,ymax);
for(i=0;i<5000;i++)
{
xpos=rand()%xmax;
ypos=rand()%ymax;
color=rand()%12;
putpixel(xpos,ypos,color);
}
}
voiddraw_object(intleft,inttop,intright,intbottom)
{
size=imagesize(left,top,right,bottom);
buffer1=farmalloc(size);
buffer2=farmalloc(size);
getimage(left,top,right,bottom,buffer1);
rectangle(left,top,right,bottom);
line(left,top,right,bottom);
line(left,bottom,right,top);
}
voidmove_object(intleft,inttop,intright,intbottom,intdestx,intdesty)
{
intwidth=right-left;
intheight=bottom-top;
getimage(left,top,right,bottom,buffer2);
putimage(left,top,buffer1,COPY_PUT);
getimage(destx,desty,destx+width,desty+height,buffer1);
putimage(destx,desty,buffer2,COPY_PUT);
}
voidmain()
{

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