Pixel-Composer/scripts/node_gradient_extract/node_gradient_extract.gml

function Node_Gradient_Extract(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name		= "Gradient Data";
	previewable = false;
	
	w = 96;
	
	inputs[| 0] = nodeValue("Gradient", self, JUNCTION_CONNECT.input, VALUE_TYPE.gradient, new gradientObject(c_white) )
		.setVisible(true, true);
	
	outputs[| 0] = nodeValue("Colors", self, JUNCTION_CONNECT.output, VALUE_TYPE.color, [] )
		.setDisplay(VALUE_DISPLAY.palette);
	
	outputs[| 1] = nodeValue("Positions", self, JUNCTION_CONNECT.output, VALUE_TYPE.float, [] );
	outputs[| 1].array_depth = 1;
	
	outputs[| 2] = nodeValue("Type", self, JUNCTION_CONNECT.output, VALUE_TYPE.integer, 0 );
	
	static processData = function(_outSurf, _data, _output_index, _array_index) {
		var gra  = _data[0];
		
		switch(_output_index) {
			case 0 :
				var pal = [];
				for( var i = 0, n = array_length(gra.keys); i < n; i++ )
					pal[i] = gra.keys[i].value;
				return pal;
			case 1 :
				var pos = [];
				for( var i = 0, n = array_length(gra.keys); i < n; i++ )
					pos[i] = gra.keys[i].time;
				return pos;
			case 2 :
				return gra.type;
		}
		
		return 0;
	}
	
	static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) {
		var bbox = drawGetBbox(xx, yy, _s);
		if(bbox.h < 1) return;
		
		var grad = inputs[| 0].getValue();
		if(is_array(grad)) {
			if(array_length(grad) == 0) return;
			grad = grad[0];
		}
		
		grad.draw(bbox.x0, bbox.y0, bbox.w, bbox.h);
	}
}