1 files changed, 0 insertions, 100 deletions
diff --git a/drawing.ha b/drawing.ha
deleted file mode 100644
index 5812109..0000000
--- a/drawing.ha
+++ /dev/null
@@ -1,100 +0,0 @@
-use sdl2;
-use fmt;
-
-// 2d position, x and y
-type pos = (i32, i32);
-
-type drawing_state = struct {
-	// is the mouse button held down?
-	drawing: bool,
-	pos: pos,
-	pictures: []picture,
-};
-
-type picture = struct {
-	// the surface data as u32s
-	d: *[*]u32,
-	w: size,
-	h: size,
-
-	// backreference to the surface whose data we're using
-	surf: *sdl2::SDL_Surface,
-
-	pos: pos,
-
-};
-
-// Returns array index of the pixel at position pos.
-// Bounds check happens in here instead of using a slice type, so
-// that it's easier to remove later.
-fn pidx(pic: *picture, pos: pos) size = {
-	const (x,y) = pos;
-	const (xs,ys) = (x:size, y:size);
-	assert(0 <= x, "x position must not be less than 0");
-	assert(0 <= y, "y position must not be less than 0");
-	assert(xs < pic.w, "x position must be less than picture width");
-	assert(ys < pic.h, "y position must be less than picture height");
-
-	return xs + pic.w*ys;
-};
-
-fn pic_set(pic: *picture, pos: pos, val: u32) void =
-	pic.d[pidx(pic,pos)] = val;
-
-fn picture_from_surface(surf: *sdl2::SDL_Surface, pos: pos) picture = picture {
-	w = surf.w: size,
-	h = surf.h: size,
-	d = (surf.pixels as *opaque: *[*]u32),
-	surf = surf,
-	pos = pos,
-};
-
-fn clear_picture(pic: *picture, color: u32) void = {
-	for (let i = 0z; i < pic.w*pic.h; i+=1) pic.d[i] = color;
-};
-
-fn outline_picture(pic: *picture) void = {
-	for (let x = 0; x:size < pic.w; x+=1) {
-		pic_set(pic, (x, 0), 0);
-		pic_set(pic, (x, pic.h:int-1), 0);
-	};
-	for (let y = 0; y:size < pic.h; y+=1) {
-		pic_set(pic, (0, y), 0);
-		pic_set(pic, (pic.w:int-1, y), 0);
-	};
-};
-
-fn min(a: i32, b: i32) i32 = if (a<b) a else b;
-fn max(a: i32, b: i32) i32 = if (a<b) b else a;
-
-// Draws a circle onto the picture, at given position radius color
-// Clips at the boundaries of the picture to avoid overflow.
-fn circle(picture: *picture, c: pos, r: i32, color: u32) void = {
-	// fmt::printfln("C {} {} {} {:x}",c.0,c.1,r,color)!;
-	const (cx,cy) = c;
-	const ymin = max(0, cy-r);
-	const ymax = min(picture.h:i32-1, cy+r);
-	const xmin = max(0, cx-r);
-	const xmax = min(picture.w:i32-1, cx+r);
-
-	const r2 = r*r + r;
-
-	for (let y = ymin; y<=ymax; y+=1) {
-		const yd = y-cy;
-		for (let x = xmin; x<=xmax; x+=1) {
-			const xd = x-cx;
-			if (yd*yd + xd*xd <= r2) {
-				pic_set(picture, (x,y), color);
-			};
-		};
-	};
-};
-
-fn do_drawing(dstate: *drawing_state) void = {
-	if (dstate.drawing) for (let i = 0z; i < 4; i+=1) {
-		const pic = &dstate.pictures[i];
-		const p = (dstate.pos.0 - pic.pos.0, dstate.pos.1 - pic.pos.1);
-		circle(pic, p, 20, 0xff0088);
-	};
-};
-