Pixel-Composer/scripts/node_feedback/node_feedback.gml

function Node_Feedback(_x, _y, _group = noone) : Node_Collection(_x, _y, _group) constructor {
	name  = "Feedback";
	color = COLORS.node_blend_feedback;
	icon  = THEME.feedback;
	
	update_on_frame     = true;
	reset_all_child     = true;
	
	if(NODE_NEW_MANUAL) { #region
		var input  = nodeBuild("Node_Feedback_Input", -256, -32, self);
		var output = nodeBuild("Node_Feedback_Output", 256, -32, self);
		
		input.inputs[2].setValue(4);
		output.inputs[0].setFrom(input.outputs[0]);
		output.inputs[1].setFrom(input.outputs[1]);
	} #endregion
	
	static getNextNodes = function(checkLoop = false) {
		if(checkLoop) return;
		
		var allReady = true;
		for(var i = custom_input_index; i < array_length(inputs); i++) {
			var _in = inputs[i].from;
			if(!_in.isRenderActive()) continue;
			
			allReady &= _in.isRenderable()
		}
		
		if(!allReady) return [];
		
		return __nodeLeafList(getNodeList());
	}
}