//selects all units (enemies and allies) in the selection rectangle which we can draw while holding lmb down
private void HandleLongLmbUp()
{
Vector3 lmbPosition2 = Input.mousePosition;
foreach (Transform transform in GameManager.Instance.GetAllUnits())
{
if (transform != null) //somehow this is sometimes null idkw
{
Vector3 unitScreenPosition = cam.WorldToScreenPoint(transform.position);
bool isInRectangle = false;
//wann drinn
if (lmbPosition1.x > lmbPosition2.x && lmbPosition1.y > lmbPosition2.y)
{
if (unitScreenPosition.x < lmbPosition1.x && unitScreenPosition.y < lmbPosition1.y && unitScreenPosition.x > lmbPosition2.x && unitScreenPosition.y > lmbPosition2.y)
{
isInRectangle = true;
}
}
else if (lmbPosition1.x > lmbPosition2.x && lmbPosition1.y < lmbPosition2.y)
{
if (unitScreenPosition.x < lmbPosition1.x && unitScreenPosition.y > lmbPosition1.y && unitScreenPosition.x > lmbPosition2.x && unitScreenPosition.y < lmbPosition2.y)
{
isInRectangle = true;
}
}
else if (lmbPosition1.x < lmbPosition2.x && lmbPosition1.y < lmbPosition2.y)
{
if (unitScreenPosition.x > lmbPosition1.x && unitScreenPosition.y > lmbPosition1.y && unitScreenPosition.x < lmbPosition2.x && unitScreenPosition.y < lmbPosition2.y)
{
isInRectangle = true;
}
}
else //(position1.x < position2.x && position1.y > position2.y)
{
if (unitScreenPosition.x > lmbPosition1.x && unitScreenPosition.y < lmbPosition1.y && unitScreenPosition.x < lmbPosition2.x && unitScreenPosition.y > lmbPosition2.y)
{
isInRectangle = true;
}
}
UnitMovement unit = transform.gameObject.GetComponent <UnitMovement>();
if (isInRectangle)
{
unit.Select();
selectionGroup.Add(unit);
}
else
{
transform.gameObject.GetComponent <UnitMovement>().Deselect();
selectionGroup.Remove(unit);
}
}
}
}
