public void ExecuteCommand(string command, Grid grid)
{
switch (command) {
case "L": Left(); break;
case "R": Right(); break;
case "M": Move(grid); break;
default: throw new ArgumentOutOfRangeException("Unknown command: " + command);
}
}
// The robot will ignore a Move that would take it off the edge of the grid.
private void Move(Grid grid)
{
int newX = X, newY = Y;
switch (Facing) {
case Direction.N: newY += 1; break;
case Direction.S: newY -= 1; break;
case Direction.E: newX += 1; break;
case Direction.W: newX -= 1; break;
}
if (grid.IsInBounds(newX, newY)) {
X = newX;
Y = newY;
}
}
