/////////////////////////////////////////////////////////////////
////// START: A code for creating all possible permutations of board positions
////// of tiles in given list, starting from left-most tile in the array
private void boardPosPermAddChildNodes(CandidateTileSeq candTileSeq, int currTileIndex, TreeNode parentNode, TileZeroTile[,] tileArray, VirtualBoard virtualBoard)
{
if (currTileIndex >= candTileSeq.getTileCount())
{
return;
}
TileZeroTile tile = candTileSeq.getTileAt(currTileIndex);
for (int currRowIndex = 0; currRowIndex < tileArray.GetLength(0); currRowIndex++)
{
for (int currColIndex = 0; currColIndex < tileArray.GetLength(1); currColIndex++)
{
int resultScore = virtualBoard.isValidMove(currRowIndex, currColIndex, tile, true, tileArray, false);
if (resultScore != Cfg.NONE)
{
TileZeroTile[,] newTileArray = Cfg.createBoardCopy(tileArray);
virtualBoard.addTile(currRowIndex, currColIndex, tile, false, newTileArray);
TreeNode childNode = parentNode.addChildNodeValue(new AbstractPos(currTileIndex, currRowIndex, currColIndex, resultScore));
boardPosPermAddChildNodes(candTileSeq, currTileIndex + 1, childNode, newTileArray, virtualBoard);
}
}
}
boardPosPermAddChildNodes(candTileSeq, currTileIndex + 1, parentNode, tileArray, virtualBoard); // [SC][2016.12.08] new code
}
////// END: very easy ai functionality
/////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////
////// START: easy ai functionality
#region easy AI
public void invokeEasyAI()
{
VirtualBoard virtualBoard = game.getVirtualBoard();
int rowCount = virtualBoard.getRowCount();
int colCount = virtualBoard.getColCount();
// [SC] using copy since indices in playerTiles may change due to removed tiles
List <TileZeroTile> tempPlayerTiles = playerTiles.listShallowClone();
bool tilePlacedFlag = false;
bool shouldDropFlag = true;
foreach (TileZeroTile tile in tempPlayerTiles)
{
// [SC] check if the tile is playable
if (!tile.getPlayable())
{
continue;
}
// [SC] add some daly before making next move
if (tilePlacedFlag)
{
tilePlacedFlag = false;
}
for (int currRowIndex = 0; currRowIndex < rowCount && !tilePlacedFlag; currRowIndex++)
{
for (int currColIndex = 0; currColIndex < colCount; currColIndex++)
{
int resultScore = virtualBoard.isValidMove(currRowIndex, currColIndex, tile, true, null, false);
if (resultScore != Cfg.NONE)
{
setSelectedTile(tile);
game.setSelectedCell(currRowIndex, currColIndex, playerIndex);
game.placePlayerTileOnBoard(playerIndex);
tilePlacedFlag = true;
shouldDropFlag = false;
break;
}
}
}
}
if (shouldDropFlag)
{
// [SC] dropping a random tile
setSelectedTile(playerTiles.getRandomElement());
game.dropPlayerTile(playerIndex);
//Cfg.showMsg(getPlayerName() + " dropped a tile.");
}
}