Pixel-Composer/scripts/node_region_fill/node_region_fill.gml

function Node_Region_Fill(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name = "Region Fill";
	
	newInput(0, nodeValue_Surface("Surface in", self));
	
	newInput(1, nodeValue_Surface("Mask", self));
	
	newInput(2, nodeValue_Palette("Fill Colors", self, array_clone(DEF_PALETTE)));
	
	newInput(3, nodeValue_Bool("Fill", self, true));
	
	newInput(4, nodeValue_Int("Seed", self, seed_random(6)))
		.setDisplay(VALUE_DISPLAY._default, { side_button : button(function() { randomize(); inputs[4].setValue(seed_random(6)); }).setIcon(THEME.icon_random, 0, COLORS._main_icon) });
	
	newInput(5, nodeValue_Color("Target Color", self, c_white));
	
	newInput(6, nodeValue_Bool("Inner only", self, false, "Only fill regions with surrounding pixels."));
	
	newInput(7, nodeValue_Enum_Scroll("Draw original", self,  0, [ "None", "Above", "Behind" ]));
	
	newInput(8, nodeValue_Enum_Scroll("Fill type", self,  0, [ "Random", "Color map", "Texture map", "Texture Coord", "Texture Index" ]));
	
	newInput(9, nodeValue_Surface("Color map", self));
	
	newInput(10, nodeValue_Surface("Texture map", self));
	
	newInput(11, nodeValue_Bool("Color Filter", self, false));
	
	newOutput(0, nodeValue_Output("Surface out", self, VALUE_TYPE.surface, noone));
	
	input_display_list = [ 4, 
		["Surfaces",        false], 0, 1, 
		["Regions Filter",  false, 11], 5, 6, 
		["Fill",	        false], 8, 2, 9, 10, 
		["Render",	        false], 7, 
	];
	
	temp_surface = array_create(3);
		
	static step = function() {
		var _filt = getInputData( 8);
		var _fclr = getInputData(11);
		
		inputs[ 2].setVisible(_filt == 0);
		inputs[ 9].setVisible(_filt == 1, _filt == 1);
		inputs[10].setVisible(_filt == 2, _filt == 2);
		
		inputs[ 5].setVisible(_fclr);
		inputs[ 6].setVisible(_fclr);
	}
	
	static processData = function(_outSurf, _data, _output_index, _array_index) {
		var _surf = _data[0];
		var _mask = _data[1];
		
		var _colr = _data[2];
		var _fill = _data[3];
		var _seed = _data[4];
		var _rnbg = _data[7];
		var _filt = _data[8];
		var _cmap = _data[9];
		var _tmap = _data[10];
		
		var _fclr = _data[11];
		var _targ = _data[5];
		var _innr = _data[6];
		
		var _sw = surface_get_width_safe(_surf);
		var _sh = surface_get_height_safe(_surf)
		
		for( var i = 0, n = array_length(temp_surface); i < n; i++ ) {
			temp_surface[i] = surface_verify(temp_surface[i], _sw, _sh); 
			surface_clear(temp_surface[i]);
		}
		
		var base = 0;
		var cmap = temp_surface[0];
		
		if(_fclr) { // filter color
			
			surface_set_shader(temp_surface[1], sh_region_fill_init);
				shader_set_color("targetColor", _targ);
			
				draw_surface_safe(_surf);
			surface_reset_shader();
			
			#region inner region
				var amo  = _sw;
			
				if(_innr) {
					repeat( amo ) {
						surface_set_shader(temp_surface[base], sh_region_fill_inner);
							shader_set_f("dimension", _sw, _sh);
					
							draw_surface_safe(temp_surface[!base]);
						surface_reset_shader();
					
						base = !base;
					}
				
					surface_set_shader(temp_surface[2], sh_region_fill_inner_remove);
						draw_surface_safe(temp_surface[!base]);
					surface_reset_shader();
				
				} else {
					surface_set_shader(temp_surface[2], sh_region_fill_inner_remove);
						draw_surface_safe(temp_surface[1]);
					surface_reset_shader();
				}
			#endregion
			
			#region coordinate
				surface_set_shader(temp_surface[base], sh_region_fill_coordinate_init);
					draw_surface_safe(temp_surface[2]);
				surface_reset_shader();
				
				base = !base;
				var amo = _sw + _sh;
			
				repeat( amo ) {
					surface_set_shader(temp_surface[base], sh_region_fill_coordinate);
						shader_set_f("dimension",   _sw, _sh);
						shader_set_surface("base",	temp_surface[2]);
					
						draw_surface_safe(temp_surface[!base]);
					surface_reset_shader();
				
					base = !base;
				}
			
				surface_set_shader(temp_surface[base], sh_region_fill_border);
					shader_set_f("dimension",       _sw, _sh);
					shader_set_surface("original",	_surf);
				
					draw_surface_safe(temp_surface[!base]);
				surface_reset_shader();
				
				cmap = temp_surface[base];
			#endregion
			
		} else {
			surface_set_shader(temp_surface[base], sh_region_fill_coordinate_all_init);
				draw_surface_safe(_surf);
			surface_reset_shader();
			
			base = !base;
			var amo = _sw + _sh;
			
			repeat( amo ) {
				surface_set_shader(temp_surface[base], sh_region_fill_coordinate_all);
					shader_set_f("dimension",   _sw, _sh);
					shader_set_surface("base",	_surf);
					
					draw_surface_safe(temp_surface[!base]);
				surface_reset_shader();
				
				base = !base;
			}
			
			cmap = temp_surface[!base];
		}
				
		surface_set_target(_outSurf);
			DRAW_CLEAR
			
			if(_rnbg == 2) draw_surface_safe(_surf); // render original
				
			switch(_filt) {
				case 0 :  // Random colors
					
					shader_set(sh_region_fill_color);
						shader_set_palette(_colr, "color", "colorAmount");
						shader_set_f("seed",		_seed);
						
						draw_surface_safe(cmap);
					shader_reset();
					break;
						
				case 1 : // Color Map
					shader_set(sh_region_fill_map);
						shader_set_surface("colorMap",	_cmap);
						
						draw_surface_safe(cmap);
					shader_reset();
					break;
						
				case 2 : // Texture Map
					shader_set(sh_region_fill_rg_map);
						shader_set_surface("textureMap", _tmap);
						
						draw_surface_safe(cmap);
					shader_reset();
					break;
				
				case 3 : // Texture Map
					shader_set(sh_region_fill_rg_coord);
						draw_surface_safe(cmap);
					shader_reset();
					break;
					
				case 4 : // Texture Index
					shader_set(sh_region_fill_rg_index);
						draw_surface_safe(cmap);
					shader_reset();
					break;
			}
				
			if(_rnbg == 1) draw_surface_safe(_surf); // render original
				
		surface_reset_target();
		
		return _outSurf;
	}
}