// Move grains
public void MoveGrain(BaseGrain grain, int dx, int dy)
{
if (activeGrains.ContainsKey(new Vector(dx, dy) + grain.SimPos()))
{
Debug.WriteLine("Position blocked");
return;
}
activeGrains.Remove(grain.SimPos());
grain.SimMove(dx, dy);
activeGrains.Add(grain.SimPos(), grain);
}
private BaseGrain SimCreateGrain(int x, int y)
{
Vector grainPosition = new Vector(x, y);
if (activeGrains.ContainsKey(grainPosition))
{
Debug.WriteLine("Grain already exists at that position");
return(null);
}
// Create grain
BaseGrain grain = new BaseGrain(x, y, grainScale);
// Add to canvas
grain.Draw(simCanvas);
// Add to dictionary of active grains
activeGrains.Add(new Vector(x, y), grain);
return(grain);
}