// we assume the boulder is a rectangle
public bool IsOverlapWithAnotherBoulder(Boulder anotherBoulder)
{
bool isWidthCoincide = !((anotherBoulder.largeX < this.smallX) || (this.largeX < anotherBoulder.smallX));
bool isHeightCoincide = !((anotherBoulder.largeY < this.smallY) || (this.largeY < anotherBoulder.smallY));
return(isWidthCoincide && isHeightCoincide);
}
public void DeselectRock()
{
if (SelectedRock != null)
{
SelectedRock = null; // this causes selectedRockIndicator to be removed from the canvas in the setter
}
}
public Boulder AddRock(CameraSpacePoint camSpacePt,
Point canvasPt, double rockWidth, double rockHeight)
{
SelectedRock = new Boulder(camSpacePt, canvasPt, rockWidth,
rockHeight, canvas);
rocksOnWall.Add(SelectedRock);
SelectedRock.DrawBoulder();
return(SelectedRock);
}
public Boulder GetRockInListByCanvasPoint(Point canvasPt)
{
Boulder requiredBoulder = null;
foreach (Boulder rockOnWall in rocksOnWall)
{
if (rockOnWall.IsCoincideWithCanvasPoint(canvasPt))
{
requiredBoulder = rockOnWall;
break;
}
}
return(requiredBoulder);
}
public void RemoveRock(Boulder rock)
{
rocksOnWall.Remove(rock);
rock.UndrawBoulder();
}
public void RemoveRock(Point canvasPt)
{
Boulder rockToBeRemoved = GetRockInListByCanvasPoint(canvasPt);
RemoveRock(rockToBeRemoved);
}