public void GiveTarget(Selectable target)
{
// First we'll try to resolve 'target' as either a Unit or a Tile.
SelectableCell targetCell = target as SelectableCell;
SelectableUnit targetUnit;
if (targetCell == null) // it's not a SelectableTile, maybe it's a SelectableUnit
{
targetUnit = target as SelectableUnit;
}
else if (targetCell.IsOccupied()) // it IS a SelectableTile, and it's occupied!
{
targetUnit = GetComponentInChildren <SelectableUnit>();
}
else // it is a non-occupied SelectableTile
{
unit.MoveTo(targetCell.GetCell());
return;
}
if (targetUnit != null) // it is a SelectableUnit, try to attack it.
{
if (IsValidTarget(targetUnit))
{
unit.Attack(targetUnit.GetUnit()); // Let Unit figure out whether it's in range of weapon and such
}
else
{
Debug.Log("Other Unit not a valid target");
}
}
}
void Update()
{
if (Input.GetKey(KeyCode.Escape))
{
ClearSelection();
}
// Handle Selection with left click
if (CurrentMode == SelectionMode.Normal || CurrentMode == SelectionMode.GivingOrder)
{
// First: Left mouse button to select a target unit
if (Input.GetMouseButtonDown(0)) // Left mouse button
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
Debug.DrawRay(ray.origin, ray.direction * float.MaxValue, Color.cyan, 10f); // Debug our ray!
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo))
{
SelectableUnit leftClickedObj = hitInfo.collider.GetComponentInParent <SelectableUnit>();
if (leftClickedObj != null)
{
ClearSelection(); // Deselect previous object
if (leftClickedObj.CanBeSelected())
{
SelectUnit(leftClickedObj);
}
else
{
Debug.Log("Unit not selectable by you!");
}
}
else
{
Debug.Log("Clicked object not a selectable unit!");
}
}
}
}
if (CurrentMode == SelectionMode.GivingOrder)
{
// Right mouse button to give a target to our current selection
if (Input.GetMouseButtonDown(1)) // Right mouse button
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo))
{
Selectable rightClickedObj = hitInfo.collider.GetComponentInParent <Selectable>();
if (rightClickedObj != null)
{
CurrentSelection.GiveTarget(rightClickedObj);
ClearSelection();
}
}
}
}
if (CurrentMode == SelectionMode.PlacingUnit)
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo))
{
SelectableCell newHoverCell = hitInfo.collider.GetComponentInParent <SelectableCell>();
if (HoverCell != newHoverCell)
{
if (HoverCell != null)
{
HoverCell.OnDeselect();
}
HoverCell = newHoverCell; // Can also be null!
if (HoverCell != null)
{
HoverCell.OnSelect();
}
}
}
else // Moused over nothing
{
if (HoverCell != null)
{
HoverCell.OnDeselect();
HoverCell = null;
}
}
if (Input.GetMouseButton(0)) // Place with left mouse button
{
if (HoverCell != null)
{
CurrentBuilder.SpawnUnit(HoverCell.GetCell());
ClearSelection();
}
}
if (Input.GetMouseButton(1)) // cancel with right
{
ClearSelection();
}
}
}