Pixel-Composer/scripts/node_invert/node_invert.gml

function Node_Invert(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name = "Invert";
	
	inputs[0] = nodeValue_Surface("Surface in", self);
	
	inputs[1] = nodeValue_Surface("Mask", self);
	
	inputs[2] = nodeValue_Float("Mix", self, 1)
		.setDisplay(VALUE_DISPLAY.slider);
	
	inputs[3] = nodeValue_Bool("Active", self, true);
		active_index = 3;
	
	inputs[4] = nodeValue_Toggle("Channel", self, 0b1111, { data: array_create(4, THEME.inspector_channel) });
		
	__init_mask_modifier(1); // inputs 5, 6
	
	inputs[7] = nodeValue_Bool("Include Alpha", self, false);
	
	input_display_list = [ 3, 4, 7, 
		["Surfaces",	 true], 0, 1, 2, 5, 6, 
	]
	
	outputs[0] = nodeValue_Output("Surface out", self, VALUE_TYPE.surface, noone);
	
	attribute_surface_depth();
	
	static step = function() {
		__step_mask_modifier();
	}
	
	static processData = function(_outSurf, _data, _output_index, _array_index) {	
	
		surface_set_shader(_outSurf, sh_invert);
			shader_set_i("alpha", _data[7]);
			
			draw_surface_safe(_data[0]);
		surface_reset_shader();
		
		__process_mask_modifier(_data);
		_outSurf = mask_apply(_data[0], _outSurf, _data[1], _data[2]);
		_outSurf = channel_apply(_data[0], _outSurf, _data[4]);
		
		return _outSurf;
	}
}