From f26df07b04a680a749ad639a99a8f190d4ab2ad6 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 9 Dec 2021 15:04:14 +0100
Subject: cmd/demo: add hare mascot

---
 cmd/demo/main.ha | 82 +++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 61 insertions(+), 21 deletions(-)

(limited to 'cmd/demo')

diff --git a/cmd/demo/main.ha b/cmd/demo/main.ha
index 35da638..f7ece50 100644
--- a/cmd/demo/main.ha
+++ b/cmd/demo/main.ha
@@ -5,10 +5,19 @@ use sdl2;
 use sdl2::image;
 use strings;
 
+type state = struct {
+	hare: *sdl2::texture,
+	cat: *sdl2::texture,
+	hare_x: int,
+	hare_y: int,
+	cat_x: int,
+	cat_y: int,
+};
+
 export fn main() void = {
 	sdl2::init(sdl2::init_flags::VIDEO);
 	defer sdl2::quit();
-	image::init(image::init_flags::PNG);
+	let flags = image::init(image::init_flags::PNG | image::init_flags::JPG);
 	defer image::quit();
 
 	const title = strings::to_c("Hare SDL2 demo");
@@ -31,28 +40,35 @@ export fn main() void = {
 	};
 	defer sdl2::destroy_renderer(render);
 
-	const path = strings::to_c("cat.png");
-	defer free(path);
-	const texture = match (image::load_texture(render, path)) {
-	case let tex: *sdl2::texture =>
-		yield tex;
-	case null =>
-		fmt::fatal("sdl2::image::load_texture failed");
+	let state = state {
+		hare = {
+			const path = strings::to_c("mascot.jpg");
+			defer free(path);
+			yield match (image::load_texture(render, path)) {
+			case let tex: *sdl2::texture =>
+				yield tex;
+			case null =>
+				fmt::fatal("sdl2::image::load_texture failed for mascot.jpg");
+			};
+		},
+		cat = {
+			const path = strings::to_c("cat.png");
+			defer free(path);
+			yield match (image::load_texture(render, path)) {
+			case let tex: *sdl2::texture =>
+				yield tex;
+			case null =>
+				fmt::fatal("sdl2::image::load_texture failed for cat.png");
+			};
+		},
+		hare_x = 100,
+		hare_y = 100,
+		...
 	};
-	defer sdl2::destroy_texture(texture);
+	defer sdl2::destroy_texture(state.hare);
+	defer sdl2::destroy_texture(state.cat);
 
-	let width = 0, height = 0;
-	sdl2::query_texture(texture, null, null, &width, &height);
-
-	sdl2::set_render_draw_color(render, 50, 50, 50, 255);
-	sdl2::render_clear(render);
-	sdl2::render_copy(render, texture, null, &sdl2::rect {
-		x = 0,
-		y = 0,
-		w = width,
-		h = height,
-	});
-	sdl2::render_present(render);
+	draw_frame(&state, render);
 
 	let ev = sdl2::event { ... };
 	for (sdl2::wait_event(&ev) == 1) {
@@ -65,3 +81,27 @@ export fn main() void = {
 
 	os::exit(0); // https://todo.sr.ht/~sircmpwn/hare/525
 };
+
+fn draw_frame(state: *state, render: *sdl2::renderer) void = {
+	sdl2::set_render_draw_color(render, 50, 50, 50, 255);
+	sdl2::render_clear(render);
+	draw_tex(render, state.cat, state.cat_x, state.cat_y);
+	draw_tex(render, state.hare, state.hare_x, state.hare_y);
+	sdl2::render_present(render);
+};
+
+fn draw_tex(
+	render: *sdl2::renderer,
+	tex: *sdl2::texture,
+	x: int,
+	y: int,
+) void = {
+	let width = 0, height = 0;
+	sdl2::query_texture(tex, null, null, &width, &height);
+	sdl2::render_copy(render, tex, null, &sdl2::rect {
+		x = x,
+		y = y,
+		w = width,
+		h = height,
+	});
+};
-- 
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