Generalize tiles per chunk row

src/support/camera.rs

@@ -13,6 +13,8 @@ pub struct CameraState {
     rotate_right: bool,
 }
 
+const SPEED: f32 = 1.0; //1.0;
+
 impl CameraState {
     pub fn new() -> CameraState {
         CameraState {
@@ -118,8 +120,6 @@ impl CameraState {
             s.0 * f.1 - s.1 * f.0,
         );
 
-        const SPEED: f32 = 100.0; //1.0;
-
         if self.moving_up {
             self.position.0 += u.0 * SPEED;
             self.position.1 += u.1 * SPEED;