tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z+1),tree_definition);
}
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z+1),tree_definition);
}