entity/player: rotate nametag to face player (#746)

Nametag is rotated to face the player (Around the Y axes. it still doesn't rotate up or down, I don't know how to rotate it on both axis)

src/entity/player.rs

@@ -211,12 +211,9 @@ impl ecs::System for PlayerRenderer {
 
                 // TODO This sucks
                 if player_model.has_name_tag {
-                    let ang = (position.position.x - renderer.camera.pos.x)
-                        .atan2(position.position.z - renderer.camera.pos.z)
-                        as f32;
                     mdl.matrix[PlayerModelPart::NameTag as usize] = Matrix4::from(Decomposed {
                         scale: 1.0,
-                        rot: Quaternion::from_angle_y(Rad(ang)),
+                        rot: Quaternion::from_angle_y(Rad(renderer.camera.yaw as f32)),
                         disp: offset + Vector3::new(0.0, (-24.0 / 16.0) - 0.6, 0.0),
                     });
                 }