the

1 files changed, 62 insertions, 0 deletions

diff --git a/main.ha b/main.ha
new file mode 100644
index 0000000..42d42cf
--- /dev/null
+++ b/main.ha
@@ -0,0 +1,62 @@
+use fmt;
+use sdl2;
+
+export fn main() void = {
+	sdl2::SDL_Init(sdl2::SDL_INIT_VIDEO)!;
+	defer sdl2::SDL_Quit();
+
+	const win = sdl2::SDL_CreateWindow("hi", sdl2::SDL_WINDOWPOS_UNDEFINED, sdl2::SDL_WINDOWPOS_UNDEFINED, 640, 480, sdl2::SDL_WindowFlags::NONE)!;
+	defer sdl2::SDL_DestroyWindow(win);
+
+	const wsurf = sdl2::SDL_GetWindowSurface(win)!;
+	const format = wsurf.format;
+	assert(format.bytesperpixel == 4, "can only work with u32 pixels");
+	fmt::printfln("got format {}. bytes per pixel {}. r{:x} g{:x} b{:x} a{:x}",
+		format.format, format.bytesperpixel, format.rmask, format.gmask, format.bmask, format.amask)!;
+	fmt::printfln("red: {:x} green {:x} blue {:x}",
+		sdl2::SDL_MapRGB(format, 255, 0, 0),
+		sdl2::SDL_MapRGB(format, 0, 255, 0),
+		sdl2::SDL_MapRGB(format, 0, 0, 255))!;
+	fmt::println(wsurf.w * wsurf.h)!;
+
+	const pixels = (wsurf.pixels as *opaque: *[*]u32)[..wsurf.w * wsurf.h];
+
+
+	let quit = false;
+	let n = 0z;
+	for (!quit) {
+		let ev = sdl2::event { ... };
+		for (sdl2::SDL_PollEvent(&ev)! == 1) switch (ev.event_type) {
+			case sdl2::SDL_EventType::QUIT => quit = true;
+			case sdl2::SDL_EventType::KEYDOWN => {
+				const keysym = ev.key.keysym.sym;
+				if (keysym == sdl2::SDL_Keycode::ESCAPE) quit = true;
+				fmt::println("got key", keysym: int)!;
+			};
+			case => void;
+		};
+
+		for (let i = 0z; i < 100; i+=1) {
+			pixels[n] = sdl2::SDL_MapRGB(format, 0, 255, 0);
+			n += 1;
+		};
+
+
+		sdl2::SDL_UpdateWindowSurface(win)!;
+		sdl2::SDL_Delay(1000 / 60);
+
+		// sdl2::SDL_SetRenderDrawColor(render, 50, 50, 50, 255)!;
+		// sdl2::SDL_RenderClear(render)!;
+
+		// rect.x = (sdl2::SDL_GetTicks(): int)/100;
+		// sdl2::SDL_SetRenderDrawColor(render, 255, 0, 0, 0)!;
+		// sdl2::SDL_RenderFillRect(render, &rect)!;
+
+		// sdl2::SDL_RenderPresent(render);
+		// sdl2::SDL_Delay(1000 / 60);
+	};
+
+
+
+
+};