private static string PerformSimulation(
LawnMowerState initialState,
LawnSize lawnSize,
LawnMowerCommand[] commands)
{
var simulator = new LawnMowerMovementSimulator();
try
{
var lawnMowerSteps =
simulator.SimulateMovement(
initialState,
lawnSize,
commands);
var finalState = lawnMowerSteps
.Last();
return $"{finalState.Position.X} {finalState.Position.Y} {finalState.Direction.Sign}";
}
catch (CannotMoveOutsideLawnBoundariesException)
{
return "Mower tried to cut rare plants";
}
}
private LawnMowerState PerformCommand(
LawnMowerState state,
LawnMowerCommand command)
{
switch (command)
{
case LawnMowerCommand.TurnRight:
return state.GetStateAfterRightTurn();
case LawnMowerCommand.TurnLeft:
return state.GetStateAfterLeftTurn();
case LawnMowerCommand.MoveForward:
return state.GetStateAfterMoveForward();
default:
throw new UnknownLawnMowerCommandException();
}
}
private LawnMowerState PerformCommand(
LawnMowerState state,
LawnMowerCommand command)
{
switch (command)
{
case LawnMowerCommand.TurnRight:
return(state.GetStateAfterRightTurn());
case LawnMowerCommand.TurnLeft:
return(state.GetStateAfterLeftTurn());
case LawnMowerCommand.MoveForward:
return(state.GetStateAfterMoveForward());
default:
throw new UnknownLawnMowerCommandException();
}
}
