//function that gets all legal positions for a selected player
public List <MonteCarloPosition> GetLegalPositions(int _playerNo)
{
//creates list to store legal positions
List <MonteCarloPosition> _legalPositions = new List <MonteCarloPosition> ();
MonteCarloPosition _pos;
//finds the object on the board dependant on the player number referenced
_pos = FindPlayer(_playerNo);
//sets the board x and z to the current object x and z position
int _boardX = _pos.GetX();
int _boardZ = _pos.GetZ();
int _checkX;
int _checkZ;
//loops used to check all adjacent tiles, except diagonal tiles
for (int x = -1; x <= 1; x++)
{
for (int z = -1; z <= 1; z++)
{
if (x == 0 || z == 0)
{
if (x == 0 && z == 0)
{
}
else
{
//sets the check x and z to the current board x and z position plus the current x and z iteration values
_checkX = _boardX + x;
_checkZ = _boardZ + z;
//checks if the check x and check z values are within the grid
if (_checkX >= 0 && _checkX < GridSystem._gridSizeX && _checkZ >= 0 && _checkZ < GridSystem._gridSizeZ)
{
//checks if the board values are set to 0 (being empty)
if (_boardValues [_checkX, _checkZ] == 0)
{
MonteCarloPosition _position = new MonteCarloPosition();
//sets the position values to the current check x and check z values
_position.SetX(_checkX);
_position.SetZ(_checkZ);
//adds the position to the list of legal positions
_legalPositions.Add(_position);
}
}
}
}
}
}
//returns the list of legal positions
return(_legalPositions);
}
//function used to find an object on the board
public MonteCarloPosition FindPlayer(int _playerNo)
{
MonteCarloPosition pos = new MonteCarloPosition();
int _player = 0;
//checks for the player no, setting player as the referenced player value
if (_playerNo == _enemyVal)
{
_player = _enemyVal;
}
else if (_playerNo == _playerVal)
{
_player = _playerVal;
}
//loops through all board values on the board
for (int x = 0; x < GridSystem._gridSizeX; x++)
{
for (int z = 0; z < GridSystem._gridSizeZ; z++)
{
//checks if the current board value is equal to the player defined by the player no
if (_boardValues [x, z] == _player)
{
//sets the position x and z values to the current board x and z values
pos.SetX(x);
pos.SetZ(z);
//returns the position
return(pos);
}
}
}
//returns null if no object found
return(null);
}