public override void Update(BaseTower entity, float delta)
{
var mousePos = entity.GetGlobalMousePosition();
entity.Update();
entity.DragTo(mousePos);
entity.ZIndex = 4;
var canPlace = entity.CanPlaceTower();
entity.AttackColour = canPlace ? GameInfo.ValidColour : GameInfo.InvalidColour;
entity.DragStart = canPlace ? entity.Position : entity.DragStart;
}