Method invalidate

src/eepp/scene/node.cpp:1872–1876

}

void Node::invalidate( Node* ) {
	if ( mVisible && mAlpha != 0.f ) {
		writeNodeFlag( NODE_FLAG_VIEW_DIRTY, 1 );
	}
}

bool Node::invalidated() const {
	return 0 != ( mNodeFlags & NODE_FLAG_VIEW_DIRTY );