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-rw-r--r--client/drawing.ha127
1 files changed, 0 insertions, 127 deletions
diff --git a/client/drawing.ha b/client/drawing.ha
deleted file mode 100644
index 2d093ae..0000000
--- a/client/drawing.ha
+++ /dev/null
@@ -1,127 +0,0 @@
-use sdl2;
-use fmt;
-use io;
-use endian;
-use math::random;
-
-// 2d position, x and y
-export type pos = (i32, i32);
-
-export type drawing_state = struct {
- // is the mouse button held down?
- drawing: bool,
- pos: pos,
- pictures: []picture,
-
- // hack. change this
- conn: io::file,
-};
-
-export 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.
-export 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;
-};
-
-export fn pic_set(pic: *picture, pos: pos, val: u32) void =
- pic.d[pidx(pic,pos)] = val;
-
-export 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,
-};
-
-export fn clear_picture(pic: *picture, color: u32) void = {
- for (let i = 0z; i < pic.w*pic.h; i+=1) pic.d[i] = color;
-};
-
-export 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.
-export 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);
- };
- };
- };
-};
-
-
-
-export 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);
- };
- // hack, change this
- // let buf: [8]u8 = [0...];
- // fmt::printfln("C {},{}",dstate.pos.0,dstate.pos.1)!;
- // endian::leputu32(buf[0..4],dstate.pos.0: u32);
- // endian::leputu32(buf[4..8],dstate.pos.1: u32);
- // io::write(dstate.conn, buf)!;
-
- static let rand: u64 = 12345;
- static let cur = 0;
- let buf: [20]u8 = [0...];
- const n = random::u32n(&rand, 10) : int;
- for (let i = 0; i < n; i += 1) {
- buf[i] = (cur+i) : u8;
- };
- cur += n;
- fmt::println(n)!;
- io::writeall(dstate.conn, buf[..n])!;
- };
-};
-