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Ingy döt Net 2013-04-10 16:19:29 -07:00
parent e5e8880e41
commit 518da4a923
1019 changed files with 15877 additions and 0 deletions
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14
Task/Bitmap-Bresenhams-line-algorithm/C/bitmap-bresenhams-line-algorithm.c Normal file
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void line(int x0, int y0, int x1, int y1) {
int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
int dy = abs(y1-y0), sy = y0<y1 ? 1 : -1;
int err = (dx>dy ? dx : -dy)/2, e2;
for(;;){
setPixel(x0,y0);
if (x0==x1 && y0==y1) break;
e2 = err;
if (e2 >-dx) { err -= dy; x0 += sx; }
if (e2 < dy) { err += dx; y0 += sy; }
}
}