setup SDL

Cargo.toml

@@ -9,4 +9,5 @@ edition = "2018"
 [dependencies]
 mat4 = "0.2.1"
 vec3 = "0.2.1"
-arrayvec = "0.5.2"
+arrayvec = "0.5.2"
+sdl2 = "0.34.3"

src/main.rs

@@ -1,3 +1,41 @@
-fn main() {
-    println!("Hello, world!");
+extern crate sdl2;
+
+use sdl2::event::Event;
+use sdl2::keyboard::Keycode;
+use sdl2::pixels::Color;
+use std::time::Duration;
+pub fn main() {
+    let sdl_context = sdl2::init().unwrap();
+    let video_subsystem = sdl_context.video().unwrap();
+
+    let window = video_subsystem
+        .window("rust-sdl2 demo", 800, 600)
+        .position_centered()
+        .build()
+        .unwrap();
+    let mut canvas = window.into_canvas().build().unwrap();
+    canvas.set_draw_color(Color::RGB(0, 255, 255));
+    canvas.clear();
+    canvas.present();
+    let mut event_pump = sdl_context.event_pump().unwrap();
+    let mut i = 0;
+    'running: loop {
+        i = (i + 1) % 255;
+        canvas.set_draw_color(Color::RGB(i, 64, 255 - i));
+        canvas.clear();
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit { .. }
+                | Event::KeyDown {
+                    keycode: Some(Keycode::Escape),
+                    ..
+                } => break 'running,
+                _ => {}
+            }
+        }
+        // The rest of the game loop goes here...
+
+        canvas.present();
+        ::std::thread::sleep(Duration::new(0, 1_000_000_000u32 / 60));
+    }
 }