/// <summary>
/// Event that handles when a MovableObject moves across the Board.
/// </summary>
/// <param name="movingObject">Object moving across the Board.</param>
/// <param name="moveArgs">Event arguments</param>
public void HandleMovingObjectOnBoard(MovableObject movingObject, EventArgs moveArgs)
{
lock (this.lockObject)
{
BoardObject objectAtCell = this.boardObjectMap[movingObject.CurrentCellCol, movingObject.CurrentCellRow];
if (objectAtCell != null)
{
objectAtCell.InteractWithMovingObject(movingObject);
}
}
}
/// <summary>
/// Update an object on the Board, either moving it from by cellCol/cellRow to the location specified by boardObject,
/// or simply updating the properties of the object in place.
/// If no object is present at cellCol,cellRow, this function throws.
/// </summary>
/// <param name="cellCol">Cell column where the object is currently placed</param>
/// <param name="cellRow">Cell row where the object is currently placed</param>
/// <param name="boardObject">Object to update (update the col/row fields of this param to move it on the board)</param>
public void UpdateObjectOnBoard(int cellCol, int cellRow, BoardObject boardObject)
{
if (!IsCellOccupied(cellCol, cellRow))
{
throw new ArgumentException("Cannot update cell [{0},{1}] because nothing is there yet!");
}
// If the "update" is really a "move", then the board removes then re-adds it
// If it's just changing non-positional properties in the same cell, we just overwrite it
// Either way, we present it to the world as an update, not a remove+add or just add
if (boardObject.CellCol != cellCol || boardObject.CellRow != cellRow)
{
this.RemoveObjectFromBoard(cellCol, cellRow);
}
this.AddObjectToBoard(boardObject, false); // TODO: arrows shouldn't throw...need to be careful with what else use update for!
}
/// <summary>
/// Add an object to the Board.
/// </summary>
/// <param name="boardObject">Object to place on the Board</param>
/// <param name="throwIfOccupied">True to throw if an object is already at that cell; false to ignore</param>
public void AddObjectToBoard(BoardObject boardObject, bool throwIfOccupied = true)
{
if (IsCellOccupied(boardObject.CellCol, boardObject.CellRow))
{
if (throwIfOccupied)
{
throw new ArgumentException(String.Format("Item is already present on the board at [{0},{1}].", boardObject.CellCol, boardObject.CellRow));
}
else
{
return;
}
}
lock (this.lockObject)
{
this.boardObjectMap[boardObject.CellCol, boardObject.CellRow] = boardObject;
}
}