public Gem Spawn(Enums.GemId gem, Vector2 position)
{
Gem spawned = _pools[gem].Get().GetComponent <Gem>();
spawned.transform.position = new Vector2(position.x, _spawnHeight);
spawned.gameObject.SetActive(true);
spawned.Move(position);
return(spawned);
}
bool CheckMatchGem(Vector2Int gem)
{
if (_grid[gem.x, gem.y] == null)
{
return(false);
}
Enums.GemId gemId = _grid[gem.x, gem.y].Id;
bool hasHoriMatch = false;
bool hasVertMatch = false;
// number of matching gems in positive/negative direction.
int matchHoriPos = 0;
int matchHoriNeg = 0;
int matchVertPos = 0;
int matchVertNeg = 0;
// Check horizontal match.
for (int i = gem.x + 1; i < _gridSize.x; i++)
{
if (_grid[i, gem.y] == null)
{
break;
}
else if (_grid[i, gem.y].Id != gemId)
{
break;
}
else
{
matchHoriPos++;
}
}
for (int i = gem.x - 1; i >= 0; i--)
{
if (_grid[i, gem.y] == null)
{
break;
}
else if (_grid[i, gem.y].Id != gemId)
{
break;
}
else
{
matchHoriNeg++;
}
}
if (matchHoriPos + matchHoriNeg >= 2)
{
hasHoriMatch = true;
}
// Check vertical match.
for (int i = gem.y + 1; i < _gridSize.y; i++)
{
if (_grid[gem.x, i] == null)
{
break;
}
else if (_grid[gem.x, i].Id != gemId)
{
break;
}
else
{
matchVertPos++;
}
}
for (int i = gem.y - 1; i >= 0; i--)
{
if (_grid[gem.x, i] == null)
{
break;
}
else if (_grid[gem.x, i].Id != gemId)
{
break;
}
else
{
matchVertNeg++;
}
}
if (matchVertPos + matchVertNeg >= 2)
{
hasVertMatch = true;
}
// Verify check results.
if (hasHoriMatch || hasVertMatch)
{
// Store the match data.
if (hasHoriMatch && hasVertMatch)
{
int[] dir = { matchHoriPos, matchHoriNeg, matchVertPos, matchVertNeg };
_matches.Add(gem, dir);
}
else if (hasHoriMatch)
{
int[] dir = { matchHoriPos, matchHoriNeg, 0, 0 };
_matches.Add(gem, dir);
}
else if (hasVertMatch)
{
int[] dir = { 0, 0, matchVertPos, matchVertNeg };
_matches.Add(gem, dir);
}
return(true);
}
else
{
return(false);
}
}