private static bool CheckPosition(int meshGroupToMoveIndex, List<MeshGroup> allMeshGroups, List<ScaleRotateTranslate> meshTransforms, MeshGroup meshGroupToMove, AxisAlignedBoundingBox meshToMoveBounds, int yStep, int xStep, ref Matrix4X4 transform)
{
double xStepAmount = 5;
double yStepAmount = 5;
Matrix4X4 positionTransform = Matrix4X4.CreateTranslation(xStep * xStepAmount, yStep * yStepAmount, 0);
Vector3 newPosition = Vector3.Transform(Vector3.Zero, positionTransform);
transform = Matrix4X4.CreateTranslation(newPosition);
AxisAlignedBoundingBox testBounds = meshToMoveBounds.NewTransformed(transform);
bool foundHit = false;
for (int i = 0; i < meshGroupToMoveIndex; i++)
{
MeshGroup meshToTest = allMeshGroups[i];
if (meshToTest != meshGroupToMove)
{
AxisAlignedBoundingBox existingMeshBounds = GetAxisAlignedBoundingBox(meshToTest, meshTransforms[i].TotalTransform);
AxisAlignedBoundingBox intersection = AxisAlignedBoundingBox.Intersection(testBounds, existingMeshBounds);
if (intersection.XSize > 0 && intersection.YSize > 0)
{
foundHit = true;
break;
}
}
}
if (!foundHit)
{
return true;
}
return false;
}
