public bool SetHoverTerrain(int squareX, int squareY, IMapBrush brush, out Rectangle updateRectangle)
{
updateRectangle = new Rectangle();
if (squareX < 0 || squareX >= Width || squareY < 0 || squareY >= Width)
{
return(false);
}
MapState oldState = new MapState(stateHover.Width, stateHover.Height);
oldState.CopyFrom(stateHover);
if (!brush.NeedsDraw(state, squareX, squareY))
{
ClearHoverTerrain();
updateRectangle = CalculateUpdateRectangle(oldState, stateHover);
return(true);
}
if (!brush.NeedsDraw(stateHover, squareX, squareY))
{
return(false);
}
ClearHoverTerrain();
brush.DrawAt(tileSet, stateHover, null /* rng */, squareX, squareY);
updateRectangle = CalculateUpdateRectangle(oldState, stateHover);
return(true);
}
public void SaveUndo()
{
MapState undoState = new MapState(width, height);
undoState.CopyFrom(state);
undoStack.Add(undoState);
if (undoStack.Count > 100)
{
undoStack.RemoveAt(0);
}
redoStack.Clear();
}
public void SetTerrain(int squareX, int squareY, IMapBrush brush, out Rectangle updateRectangle)
{
updateRectangle = new Rectangle();
if (squareX < 0 || squareX >= Width || squareY < 0 || squareY >= Width)
{
return;
}
MapState oldState = new MapState(stateHover.Width, state.Height);
oldState.CopyFrom(state);
brush.DrawAt(tileSet, state, Rng, squareX, squareY);
updateRectangle = CalculateUpdateRectangle(oldState, state);
ClearHoverTerrain();
}
public void ClearHoverTerrain()
{
stateHover.CopyFrom(state);
}