Fix axis layout and implement click raytracing

src/game/mod.rs

@@ -1,7 +1,7 @@
 
 use std::time::SystemTime;
 
-use cgmath::{Deg, InnerSpace, Quaternion, Rotation3, vec3};
+use cgmath::{Deg, Euler, Quaternion, vec3};
 use winit::event::Event;
 
 use level::{load_level, save_level};
@@ -66,6 +66,8 @@ impl Game for TestGame {
 
         if self.input.button_down("print_framerate") {
             println!("{:.0} ms / {:.0} FPS", frame_time * 1000.0, 1.0 / frame_time);
+            print_quat_as_euler(self.player.camera.rotation);
+            println!();
         }
 
         if self.input.button_just_pressed("test") {
@@ -77,7 +79,7 @@ impl Game for TestGame {
         if !self.paused {
             self.player.update(frame_time, &self.input, renderer);
         }
-        self.game_objects[1].get_game_object_mut(renderer).unwrap().rotation = Quaternion::from_angle_y(Deg(time * -20.)).normalize();
+        // self.game_objects[1].get_game_object_mut(renderer).unwrap().rotation = Quaternion::from_angle_y(Deg(time * -20.)).normalize();
 
         // End frame
         self.last_time = time;
@@ -171,3 +173,8 @@ impl TestGame {
         renderer.clear_all();
     }
 }
+
+pub fn print_quat_as_euler(quat: Quaternion<f32>) {
+    let euler = Euler::from(quat);
+    print!("({:?},{:?},{:?})", Deg::from(euler.x), Deg::from(euler.y), Deg::from(euler.z));
+}