private ToolPreviewOutcome Preview(IWorldView worldView, IToolBehavior toolBehavior, IToolBrush toolBrush, IEnumerable <Vector> inputPositions)
{
IEnumerable <Vector> toolPositions = toolBrush.ComputePositions(inputPositions);
return(toolBehavior.Preview(worldView, toolPositions));
}
private static bool Validate(IWorldView worldView, IToolBehavior toolBehavior, IEnumerable <Vector> toolPositions)
{
return(toolBehavior.Preview(worldView, toolPositions).IsPossible());
}