better collision

src/Player.cpp

@@ -27,9 +27,10 @@ void Player::update(float dTime, std::vector<Wall> &walls, std::vector<Coin>& co
 	}
 
 	for (auto &wall : walls){
+		int wWidth = wall.size.width();
 		if (!wall.jumped && !wall.failed){
-			if (pos.x() > wall.pos.x() - wall.size.width() / 2
-			&&  pos.x() < wall.pos.x() + wall.size.width() / 2){
+			if (pos.x() > wall.pos.x() - wWidth / 2
+			&&  pos.x() < wall.pos.x() + wWidth / 2){
 				if (pos.y() < wall.pos.y() - wall.size.height()){
 					wall.jumped = true;
 					auto e = new WallJumpEvent;

src/Wall.cpp

@@ -7,7 +7,7 @@ void Wall::draw(QPainter &painter) const {
 	int w = size.width();
 	int h = size.height();
 	painter.translate(pos.toPoint());
-	painter.fillRect(w / 2, -h, w, h, Qt::red);
+	painter.fillRect(-w / 2, -h, w, h, Qt::red);
 
 	painter.restore();
 }