private List <Voxel> GetMergableVoxels(VoxelLayer aVoxelLayer, Voxel aStartVoxel, Vector3 aDirectionX, Vector3 aDirectionY, out Vector2 aScaleFactor)
{
List <Voxel> result = new List <Voxel>();
List <Vector2> factorList = new List <Vector2>();
Vector2 maxSteps = ownerContainer.GetMaxStepsInLayer(aStartVoxel, aVoxelLayer, aDirectionX, aDirectionY);
for (int factorX = (int)maxSteps.x; factorX >= 0; factorX--)
{
for (int factorY = (int)maxSteps.y; factorY >= 0; factorY--)
{
bool allMergableInArea = true;
for (int x = 0; x <= factorX; x++)
{
for (int y = 0; y <= factorY; y++)
{
Vector3 curPos = aStartVoxel.position + (aDirectionX * x) + (aDirectionY * y);
if (ownerContainer.FindVoxelInLayerByPos(aVoxelLayer, curPos) == null)
{
allMergableInArea = false;
break;
}
}
if (!allMergableInArea)
{
break;
}
}
if (allMergableInArea)
{
factorList.Add(new Vector2(factorX, factorY));
break;
}
}
if (factorList.Count > 0)
{
break;
}
}
int maxMergableVoxels = 0;
Vector2 resultFactor = Vector2.zero;
foreach (Vector2 curFactor in factorList)
{
if (maxMergableVoxels < this.GetMergableVoxelsFromFactor(curFactor))
{
resultFactor = curFactor;
maxMergableVoxels = this.GetMergableVoxelsFromFactor(curFactor);
}
}
result.Add(aStartVoxel);
for (int x = 0; x <= resultFactor.x; x++)
{
for (int y = 0; y <= resultFactor.y; y++)
{
Vector3 curPos = aStartVoxel.position + (aDirectionX * x) + (aDirectionY * y);
Voxel newVoxel = ownerContainer.FindVoxelInLayerByPos(aVoxelLayer, curPos);
if ((newVoxel != null) && (result.IndexOf(newVoxel) < 0))
{
result.Add(newVoxel);
}
}
}
resultFactor += Vector2.one;
aScaleFactor = resultFactor;
return(result);
}