/// <summary>
/// Move along MyPath - always turn to face the direction of travel (or else I can get stuck
/// behind a block that I cannot see).
/// Return false if this move is likely to fail because the next square is blocked
/// </summary>
public bool MoveAlongMyPath()
{
if (MyPath != null && MyPathIndex < MyPath.Count) // not yet at end of path
{
PathSquare nextsquare = MyPath[MyPathIndex];
if (nextsquare.IsBlocked)
{
return(false); // next square is blocked so find a new path
}
Command.Move dir = GetMoveDirection(nextsquare.Parent, nextsquare);
Command.Move rot = GetMoveRotation(dir);
if (rot != Command.Move.Stay)
{
MyCommand = new Command(rot, false); // rotate to face direction of travel
}
else
{
MyCommand = new Command(dir, false); // move along path
MyPathIndex++; // so go to next square of path
}
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Get the Command.Move rotation that rotates your tank to face in Command.Move direction dir,
/// or Command.Move.Stay if none exists.
/// </summary>
Command.Move GetMoveRotation(Command.Move dir)
{
switch (dir)
{
case Command.Move.Up:
switch (MyWorldState.MyFacing)
{
case PlayerWorldState.Facing.Up:
return(Command.Move.Stay);
case PlayerWorldState.Facing.Down:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Left:
return(Command.Move.RotateRight);
case PlayerWorldState.Facing.Right:
return(Command.Move.RotateLeft);
}
break;
case Command.Move.Down:
switch (MyWorldState.MyFacing)
{
case PlayerWorldState.Facing.Up:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Down:
return(Command.Move.Stay);
case PlayerWorldState.Facing.Left:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Right:
return(Command.Move.RotateRight);
}
break;
case Command.Move.Left:
switch (MyWorldState.MyFacing)
{
case PlayerWorldState.Facing.Up:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Down:
return(Command.Move.RotateRight);
case PlayerWorldState.Facing.Left:
return(Command.Move.Stay);
case PlayerWorldState.Facing.Right:
return(Command.Move.RotateLeft);
}
break;
case Command.Move.Right:
switch (MyWorldState.MyFacing)
{
case PlayerWorldState.Facing.Up:
return(Command.Move.RotateRight);
case PlayerWorldState.Facing.Down:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Left:
return(Command.Move.RotateLeft);
case PlayerWorldState.Facing.Right:
return(Command.Move.Stay);
}
break;
}
return(Command.Move.Stay); // should never get here
}