public NPuzzle UnMove()
{
NPuzzle PuzzleCopy = (NPuzzle)this.Clone();
if (PuzzleCopy.m_PreviousMoves.Count > 0)
{
MOVE Move = PuzzleCopy.m_PreviousMoves[PuzzleCopy.m_PreviousMoves.Count - 1];
PuzzleCopy.m_PreviousMoves.RemoveAt(m_PreviousMoves.Count - 1);
iVec2 Empty = PuzzleCopy.EmptyTile();
switch (Move)
{
case MOVE.UP:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x, Empty.y - 1));
break;
case MOVE.RIGHT:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x + 1, Empty.y));
break;
case MOVE.LEFT:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x - 1, Empty.y));
break;
case MOVE.DOWN:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x, Empty.y + 1));
break;
}
}
return(PuzzleCopy);
}
public NPuzzle Move(MOVE Move)
{
NPuzzle PuzzleCopy = (NPuzzle)this.Clone();
PuzzleCopy.m_PreviousMoves.Add(Move);
iVec2 Empty = EmptyTile();
#if DEBUG
System.Diagnostics.Debug.WriteLineIf(!this.AvalibleMoves.Contains(Move), "UnValid Move Maid");
#endif
switch (Move)
{
case MOVE.DOWN:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x, Empty.y - 1));
break;
case MOVE.LEFT:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x + 1, Empty.y));
break;
case MOVE.RIGHT:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x - 1, Empty.y));
break;
case MOVE.UP:
PuzzleCopy.SwitchTiles(Empty, new iVec2(Empty.x, Empty.y + 1));
break;
}
return(PuzzleCopy);
}
protected void SwitchTiles(iVec2 TC1, iVec2 TC2)
{
Tile T1 = RawTiles[TC1.x, TC1.y];
RawTiles[TC1.x, TC1.y] = RawTiles[TC2.x, TC2.y];
RawTiles[TC2.x, TC2.y] = T1;
}
public virtual iVec2 EmptyTile()
{
iVec2 E = new iVec2();
foreach (PlacedTile T in Tiles)
{
if (T.T.Number == 0)
{
E = T.Coord;
break;
}
}
return(E);
}
public float Evaluate(NPuzzle Puzzle)
{
float f = 0.0f;
foreach (PlacedTile T in Puzzle.Tiles)
{
iVec2 Target = new iVec2();
Target.x = T.T.Number % Puzzle.Width;
Target.y = T.T.Number / Puzzle.Width;
f += Math.Abs(T.Coord.x - Target.x) + Math.Abs(T.Coord.y - Target.y);
}
return(f);
}
public PlacedTile(iVec2 _Coords, Tile _t)
{
Coord = _Coords;
T = _t;
}