shoot action in demo

demo/src/states/game/player/player.cpp

@@ -33,6 +33,11 @@ void Player::update(const Heightmap& heightmap) {
 
 PlayerShootAction Player::getShootAction() const {
   PlayerShootAction action;
+  action.isShooting = weapon.isShooting;
+
+  if (action.isShooting) {
+    action.ray = Ray(camera.position, camera.lookAt);
+  }
 
   return action;
 }