/// <summary>
/// Compute a weight on the move
/// </summary>
public virtual WeightData WeightMove(AIMove m, int width, int height, int depth)
{
var w = new WeightData();
blocksInComboIndex = 0;
currentComboBlocksIndex = 0;
if (m.gridAfterMove == null)
{
Log.Error("AI - Missing grid for move!");
return(w);
}
int weight = WeightGeneral(m, depth);
// Compute combos
sbyte currentBlock = 0;
int currentCombo = 0;
void CommitCommbo()
{
weight += WeightCombo(currentCombo, currentBlock, m.gridAfterMove, width, height);
w.combosCount++;
// Transfer current list to general list
for (int i = 0; i < currentComboBlocksIndex; i++)
{
if (blocksInComboIndex < blocksInCombo.Length)
{
blocksInCombo[blocksInComboIndex] = currentComboBlocks[i];
blocksInComboIndex++;
}
}
}
var highestBlock = Vector2.one * -1;
// Vertical
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
sbyte block = m.gridAfterMove[x, y];
if (block == 99)
{
continue;
}
// Not in a combo
if (currentBlock == 0)
{
if (block > 0)
{
currentBlock = block;
currentCombo = 1;
// Same than a list.Add(new Vector) but better when 10 000 elements!
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
else
{
currentBlock = 0;
currentCombo = 0;
currentComboBlocksIndex = 0;
}
}
else
{
// Blocks are falling
if (block == 0)
{
// Skip
continue;
}
// Check for an identical block
if (currentBlock == block)
{
currentCombo++;
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
// Combo breaker
else
{
if (currentCombo >= 3)
{
CommitCommbo();
}
// Reset
currentCombo = 1;
currentBlock = block;
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
}
if (block > 0)
{
if (y > highestBlock.y)
{
highestBlock.x = x;
highestBlock.y = y;
}
}
} // y
if (currentCombo >= 3)
{
CommitCommbo();
}
// Reset
currentBlock = 0;
currentCombo = 0;
currentComboBlocksIndex = 0; // list.Clear
} // x
// Horizontal
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
sbyte block = m.gridAfterMove[x, y];
if (block == 99)
{
continue;
}
// Not in a combo
if (currentBlock == 0)
{
if (block > 0)
{
currentBlock = block;
currentCombo = 1;
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
else
{
currentBlock = 0;
currentCombo = 0;
currentComboBlocksIndex = 0;
}
}
else
{
// Check for an identical block
if (currentBlock == block)
{
currentCombo++;
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
// Combo breaker
else
{
if (currentCombo >= 3)
{
CommitCommbo();
}
// Reset
currentCombo = 1;
currentBlock = block;
currentComboBlocks[currentComboBlocksIndex].x = x;
currentComboBlocks[currentComboBlocksIndex].y = y;
currentComboBlocksIndex++;
}
}
} // x
if (currentCombo >= 3)
{
CommitCommbo();
}
// Reset
currentBlock = 0;
currentCombo = 0;
currentComboBlocksIndex = 0;
} // y
// Check if the game over is near
weight += WeightDanger(m, highestBlock, w);
w.total = weight;
w.blocksInCombo = blocksInCombo.Take(blocksInComboIndex).ToArray();
return(w);
}