function sprite_pack_skyline(rectangles, width, height) { var maxw = 0; var maxh = 0; array_sort(rectangles, function(a, b) { return b.w - a.w; }); var skyline = [ new Rectangle(0, 0, width, height) ]; var packed = []; for (var i = 0; i < array_length(rectangles); i++) { var rect = rectangles[i]; var bestStrip = noone; var bestWasted = width * height; for (var j = 0; j < array_length(skyline); j++) { var strip = skyline[j]; if (strip.w >= rect.w && strip.h >= rect.h) { var wasted = strip.w * strip.h; if (wasted <= bestWasted) { bestStrip = strip; bestWasted = wasted; } } } if (bestStrip == noone) continue; rect.x = bestStrip.x; rect.y = bestStrip.y; array_push(packed, rect); if (bestStrip.w > rect.w) array_push(skyline, new Rectangle(bestStrip.x + rect.w, bestStrip.y, bestStrip.w - rect.w, bestStrip.h)); if (bestStrip.h > rect.h) array_push(skyline, new Rectangle(bestStrip.x, bestStrip.y + rect.h, rect.w, bestStrip.h - rect.h)); array_remove(skyline, bestStrip); array_sort(skyline, function(a, b) { return a.x - b.x; }); maxw = max(maxw, rect.x + rect.w); maxh = max(maxh, rect.y + rect.h); } return [ new Rectangle(0, 0, maxw, maxh), packed ]; }