private void CheckTRBL()
{
int pos = -1;
List <AvailableBlock> blks = new List <AvailableBlock>();
AvailableBlock blk = new AvailableBlock();
base.TopRightBottomLeftCheck((x, y, lineNr) =>
{
Check(x, y, lineNr, ref pos, ref blk, blks);
return(false);
});
if (blk.X >= 0 && (blk.PlayerRateX > 0 || blk.PlayerRateO > 0))
{
blks.Add(blk);
}
foreach (AvailableBlocksMap bs in blocks)
{
for (int i = blks.Count - 1; i >= 0; i--)
{
if (bs.X == blks[i].X && bs.Y == blks[i].Y)
{
bs.TopRightBottomLeft.O += blks[i].PlayerRateO;
bs.TopRightBottomLeft.X += blks[i].PlayerRateX;
blks.RemoveAt(i);
}
}
}
if (blks.Count > 0)
{
foreach (AvailableBlock b in blks)
{
AvailableBlocksMap abm = new AvailableBlocksMap(b.X, b.Y);
abm.TopRightBottomLeft.X = b.PlayerRateX;
abm.TopRightBottomLeft.O = b.PlayerRateO;
blocks.Add(abm);
}
}
}
public AvailableBlocksMap AIMove(Player aiType)
{
if (aiType == Player.NONE)
{
return(null);
}
for (int i = blocks.Count - 1; i >= 0; i--)
{
blocks.RemoveAt(i);
}
CheckH();
CheckV();
CheckTLBR();
CheckTRBL();
AvailableBlocksMap bMap = null;
if (blocks.Count <= 0)
{
return(null);
}
if (blocks.Count == 1)
{
bMap = blocks[0];
}
else
{
List <AvailableBlocksMap> bestBlocks = new List <AvailableBlocksMap>();
int maxBlock = 0;
foreach (AvailableBlocksMap b in blocks)
{
if (maxBlock < b.Max)
{
maxBlock = b.Max;
}
}
foreach (AvailableBlocksMap b in blocks)
{
if (maxBlock == b.Max)
{
bestBlocks.Add(b);
}
}
if (bestBlocks.Count == 1)
{
bMap = bestBlocks[0];
}
if (bestBlocks.Count > 1)
{
// Expected win
if (maxBlock + 1 >= winLine)
{
List <AvailableBlocksMap> bestBlocksTemp = new List <AvailableBlocksMap>();
for (int i = bestBlocks.Count - 1; i >= 0; i--)
{
switch (aiType)
{
case Player.X:
if (maxBlock == bestBlocks[i].MaxX)
{
bestBlocksTemp.Add(bestBlocks[i]);
}
break;
case Player.O:
if (maxBlock == bestBlocks[i].MaxO)
{
bestBlocksTemp.Add(bestBlocks[i]);
}
break;
}
}
if (bestBlocksTemp.Count == 1)
{
bMap = bestBlocksTemp[0];
}
else if (bestBlocksTemp.Count > 1)
{
int index = new Random().Next(bestBlocksTemp.Count);
bMap = bestBlocksTemp[index];
}
else
{
int index = new Random().Next(bestBlocks.Count);
bMap = bestBlocks[index];
}
}
else
{
CheckFreeBlocks();
List <AvailableBlocksMap> bestBlocksTemp = new List <AvailableBlocksMap>();
for (int i = bestBlocks.Count - 1; i >= 0; i--)
{
switch (aiType)
{
case Player.X:
if (winLine <= bestBlocks[i].AvailableMaxX)
{
bestBlocksTemp.Add(bestBlocks[i]);
}
break;
case Player.O:
if (winLine <= bestBlocks[i].AvailableMaxO)
{
bestBlocksTemp.Add(bestBlocks[i]);
}
break;
}
}
if (bestBlocksTemp.Count == 1)
{
bMap = bestBlocksTemp[0];
}
else if (bestBlocksTemp.Count > 1)
{
int index = new Random().Next(bestBlocksTemp.Count);
bMap = bestBlocksTemp[index];
}
else
{
int index = new Random().Next(bestBlocks.Count);
bMap = bestBlocks[index];
}
}
}
}
if (bMap != null)
{
switch (aiType)
{
case Player.X:
map[bMap.X, bMap.Y] = Player.X;
break;
case Player.O:
map[bMap.X, bMap.Y] = Player.O;
break;
}
}
return(bMap);
}
