void Update()
{
//Checks if left mouse button was pressed
if (Input.GetMouseButtonDown(0))
{
//Checks if mouse is currently over ui element
if (!EventSystem.current.IsPointerOverGameObject())
{
//Raycast to check for collider under mouse
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector2.down, 0.1f);
int hitx = (int)hit.transform.position.x;
int hity = (int)hit.transform.position.y;
if (hit.collider != null)
{
if (TileGenerator.GetTileAt(hitx, hity).ActiveTower != null)
{
//Checks if object is already selected
if (!SelectedObjects.ContainsKey(hit.collider.transform))
{
//Checks if holding shift to select multiple
if (!Input.GetKey(KeyCode.LeftShift) && !Input.GetKey(KeyCode.RightShift))
{
if (SelectedTiles.Count > 0)
{
//Clears previous selection if shift was not held down
ClearSelection();
}
}
//Add new selection
AddSelection(hit.collider.transform);
}
//Object was already selected
else
{
//Removes selection
RemoveSelection(hit.collider.transform);
SelectedTiles.Remove(hit.collider.gameObject);
}
}
}
}
}
}
