Pos2 multiply and negate

src/util/Pos.hx

@@ -27,4 +27,20 @@ abstract Pos(Vec2<Int>) from Vec2<Int> to Vec2<Int>{
 			x: this.x - rhs.x,
 		});
 	}
+
+	@:op(A * B)
+	public function multiply(rhs: Vec2<Int>): Pos {
+		return new Pos({
+			y: this.y * rhs.y,
+			x: this.x * rhs.x,
+		});
+	}
+
+	@:op(-A)
+	public function negate(): Pos {
+		return new Pos({
+			y: -this.y,
+			x: -this.x,
+		});
+	}
 }