public void OnEndDrag(PointerEventData eventData)
{
if (IsRunning)
{
return;
}
if (!IsDragging)
{
return;
}
BoardPosition pos = FindPosition(eventData);
//Debug.LogFormat("OnEndDrag: {0}", pos);
if (pos.place == BoardPosition.Place.BOARD)
{
// Drop in board
Board.Cell targetCell = TheBoard[pos];
if (targetCell.IsEmpty())
{
// Set item at target position
SetBoardAndTile(pos, DraggingCell);
}
else if (DraggingFrom.x != -999)
{
// Move from board
if (!targetCell.IsMovable())
{
// Cannot swap with immovable object, spring back to original position
SetBoardAndTile(DraggingFrom, DraggingCell);
}
else
{
// There are something there and is movable, swap them
SetBoardAndTile(DraggingFrom, targetCell);
SetBoardAndTile(pos, DraggingCell);
}
}
else
{
// Move from toolbox but dropped on something. Discard it.
TheBoard.ReturnTool(DraggingCell);
}
}
else
{
// Drop outside board, try to return the item to toolbox
if (!TheBoard.ReturnTool(DraggingCell))
{
// Item cannot be returned, spring back to original position (if there is)
if (DraggingFrom.x != -999)
{
SetBoardAndTile(DraggingFrom, DraggingCell);
}
}
}
DragIcon.gameObject.SetActive(false);
IsDragging = false;
}
public void OnBeginDrag(PointerEventData eventData)
{
if (IsRunning)
{
return;
}
if (eventData.button != PointerEventData.InputButton.Left)
{
return;
}
BoardPosition pos = MouseDownPos; // Use position when mouse is down, not start dragging
//BoardPosition pos = FindPosition(eventData);
//Debug.LogFormat("OnBeginDrag: {0}", pos);
do
{
if (pos.place == BoardPosition.Place.TOOLBOX)
{
int toolID = pos.x;
Board.Cell NewCell = TheBoard.TakeTool(toolID);
if (!NewCell.IsEmpty())
{
DraggingCell = NewCell;
DraggingFrom = new Vector2Int(-999, -999);
break;
}
}
else if (pos.place == BoardPosition.Place.BOARD)
{
// Begin drag on a board
Board.Cell cell = TheBoard[pos];
if (cell.IsMovable())
{
DraggingCell = cell;
DraggingFrom = pos;
SetBoardAndTile(DraggingFrom, Board.EmptyCell);
break;
}
}
eventData.pointerDrag = null;
return;
} while (false);
IsDragging = true;
Sprite draggingSprite = BoardTile.CellToSprite(DraggingCell);
DragIcon.gameObject.SetActive(true);
DragIcon.GetComponent <SpriteRenderer>().sprite = draggingSprite;
DragIcon.position = MainCamera.ScreenToWorldPoint((Vector3)eventData.position).SetZ(0);
//Debug.LogFormat("OnBeginDrag: Event position = {0}", eventData.position));
}