/// Author: Bert van Montfort
/// <summary>
/// Solves a concrete condition like "can the robot go forward?"
/// or "is the robot at the grocery store?"
/// </summary>
/// <returns>False if the check failed, true if it succeeded</returns>
/// <param name="instruction">Instruction.</param>
public bool solvePiece(ECanInstructions instruction)
{
Robot robot = Robot.Instance;
switch (instruction) {
case ECanInstructions.Backward:
return robot.canMove (ECanInstructions.Backward);
case ECanInstructions.Forward:
return robot.canMove (ECanInstructions.Forward);
case ECanInstructions.Left:
return robot.canMove (ECanInstructions.Left);
case ECanInstructions.Right:
return robot.canMove (ECanInstructions.Right);
case ECanInstructions.At:
if (shopName != null) {
return robot.At (shopName);
} else {
return false;
}
case ECanInstructions.None:
break;
default:
break;
}
return false;
}
/// <summary>
/// A Switch for checking whether the robot can move to a certain direction
/// </summary>
/// <returns><c>true</c>, if the robot can move in the specified direction, <c>false</c> if the robot can move in the specified direction</returns>
/// <param name="eCanInstructions">E can instructions.</param>
public bool canMove(ECanInstructions eCanInstruction)
{
return level.checkMove (xPosition, yPosition, eCanInstruction, this.orientationEnum);
}
public ConcreteInstruction(ECanInstructions instruction , string shopName)
{
this.instruction = instruction;
this.shopName = shopName;
}
/// <summary>
/// Checks if a move in a certain direction is possible
/// </summary>
/// <returns><c>true</c>, if move is possible, <c>false</c> otherwise.</returns>
/// <param name="x">The x coordinate.</param>
/// <param name="y">The y coordinate.</param>
/// <param name="canInstruction">Can instruction.</param>
public bool checkMove(int x, int y, ECanInstructions canInstruction, EOrientation robotOrientation)
{
var tile = map [y, x];
switch (canInstruction) {
case ECanInstructions.Forward:
switch (robotOrientation) {
case EOrientation.North:
return tile.North;
case EOrientation.East:
return tile.East;
case EOrientation.South:
return tile.South;
case EOrientation.West:
return tile.West;
default:
return false;
}
case ECanInstructions.Backward:
switch (robotOrientation) {
case EOrientation.North:
return tile.South;
case EOrientation.East:
return tile.West;
case EOrientation.South:
return tile.North;
case EOrientation.West:
return tile.East;
default:
return false;
}
case ECanInstructions.Left:
switch (robotOrientation) {
case EOrientation.North:
return tile.West;
case EOrientation.East:
return tile.North;
case EOrientation.South:
return tile.East;
case EOrientation.West:
return tile.South;
default:
return false;
}
case ECanInstructions.Right:
switch (robotOrientation) {
case EOrientation.North:
return tile.East;
case EOrientation.East:
return tile.South;
case EOrientation.South:
return tile.West;
case EOrientation.West:
return tile.North;
default:
return false;
}
case ECanInstructions.None:
return false;
default:
return false;
}
}
public ConcreteInstruction(ECanInstructions instruction)
{
this.instruction = instruction;
}
