#region globalvar
	globalvar ALL_NODES, NODE_PB_CATEGORY, NODE_PCX_CATEGORY;
	globalvar NODE_CATEGORY, NODE_CATEGORY_MAP;
	globalvar SUPPORTER_NODES, NEW_NODES;
	globalvar CUSTOM_NODES, CUSTOM_NODES_POSITION;
	
	globalvar NODE_PAGE_DEFAULT, NODE_PAGE_LAST;
	globalvar NODE_ACTION_LIST;
	
	global.PATREON_NODES = [
		Node_Brush_Linear, 
		Node_Ambient_Occlusion, 
		Node_RM_Cloud, 
		Node_Perlin_Extra, 
		Node_Voronoi_Extra, 
		Node_Gabor_Noise, 
		Node_Shard_Noise, 
		Node_Wavelet_Noise, 
		Node_Caustic, 
		Node_Noise_Bubble, 
		Node_Flow_Noise, 
		Node_Noise_Cristal, 
		Node_Honeycomb_Noise, 
		Node_Grid_Pentagonal, 
		Node_Pytagorean_Tile, 
		Node_Herringbone_Tile, 
		Node_Random_Tile, 
		Node_MK_Fracture, 
		Node_MK_Sparkle, 
	];
#endregion

function NodeObject(_name, _node, _tooltip = "") constructor {
	name = _name;
	node = _node;
	spr  = s_node_icon;
	icon = noone;
	nodekey = "";
	
	nodeName     = script_get_name(node);
	createFn     = noone;
	createParam  = noone;
	
	sourceDir    = "";
	tags         = [];
	tooltip      = _tooltip;
	tooltip_spr  = undefined;
	
	pxc_version  = 0;
	new_node     = false;
	deprecated   = false;
	
	show_in_recent = true;
	show_in_global = true;
	
	patreon  = array_exists(global.PATREON_NODES, node);
	if(patreon) array_push(SUPPORTER_NODES, self);
	
	testable = true;
	
	ioArray = [];
	input_type_mask  = 0b0;
	output_type_mask = 0b0;
	
	author  = "";
	license = "";
	
	_fn = registerFunctionLite("New node", name, function(n) /*=>*/ { PANEL_GRAPH.createNodeHotkey(n); }, [ nodeName ]);
	_fn.spr = spr;
	
	static init = function() {
		if(IS_CMD) return;
		
		if(struct_has(global.NODE_GUIDE, node)) {
			var _n = global.NODE_GUIDE[$ node];
			name   = _n.name;
			if(_n.tooltip != "")
				tooltip = _n.tooltip;
		}
	} init();
		
	static setTags    = function(_tags) { tags        = _tags; return self; }
	static setSpr     = function(_spr)  { spr         = _spr;  return self; }
	static setTooltip = function(_tool) { tooltip     = _tool; return self; }
	static setBuild   = function(_fn)   { createFn    = _fn;   return self; }
	static setParam   = function(_par)  { createParam = _par;  return self; }
	
	static setIO = function(t) { 
		for(var i = 0; i < argument_count; i++) { 
			input_type_mask  |= value_bit(argument[i]); 
			output_type_mask |= value_bit(argument[i]); 
			
			array_push(ioArray, value_type_to_string(argument[i]));
		} 
		return self; 
	}
	
	static setVersion = function(version) {
		INLINE 
		if(IS_CMD) return self;
		
		pxc_version = version;
		new_node    = version >= LATEST_VERSION;
		
		return self;
	}
	
	static setIcon = function(_icon) {
		INLINE 
		if(IS_CMD) return self;
		
		icon = _icon;
		return self;
	}
	
	static isDeprecated = function() {
		INLINE 
		if(IS_CMD) return self;
		
		deprecated = true;
		return self;
	}
	
	static hideRecent = function() {
		INLINE 
		if(IS_CMD) return self;
		
		show_in_recent = false;
		testable       = false;
		variable_struct_remove(FUNCTIONS, _fn.fnName);
		return self;
	}
	
	static notTest = function() { testable = false; return self; }
	
	static hideGlobal = function() {
		INLINE 
		if(IS_CMD) return self;
		
		show_in_global = false;
		return self;
	}
	
	static getName    = function() { return __txt_node_name(node, name);	   }
	static getTooltip = function() { return __txt_node_tooltip(node, tooltip); }
	static getTooltipSpr = function() { 
		if(tooltip_spr != undefined) return tooltip_spr;
		
		tooltip_spr = noone;
		var pth = $"{sourceDir}/tooltip_spr.png";
		if(file_exists_empty(pth)) 
			tooltip_spr = sprite_add(pth, 0, false, false, 0, 0);
		
		return tooltip_spr;
	}
	
	static build = function(_x = 0, _y = 0, _group = PANEL_GRAPH.getCurrentContext(), _param = {}) {
		INLINE 
		
		if(createParam != noone) {
			struct_append(_param, createParam);
			_param.sourceDir = sourceDir;
			_param.iname     = nodekey;
		}
		
		var _node  = createFn == noone? new node(_x, _y, _group, _param) : createFn(_x, _y, _group, _param);
		_node.name = name;
		_node.postBuild();
		
		return _node;
	}
	
	static drawGrid = function(_x, _y, _mx, _my, grid_size, _param = {}) {
		var spr_x = _x + grid_size / 2;
		var spr_y = _y + grid_size / 2;
		
		var _spw = sprite_get_width(spr);
		var _sph = sprite_get_height(spr);
		var _ss  = grid_size / max(_spw, _sph) * 0.85;
		
		gpu_set_tex_filter(true);
		draw_sprite_uniform(spr, 0, spr_x, spr_y, _ss);
		gpu_set_tex_filter(false);
				
		if(new_node) {
			draw_sprite_ui_uniform(THEME.node_new_badge, 0, _x + grid_size - ui(12), _y + ui(6),, COLORS._main_accent);
			draw_sprite_ui_uniform(THEME.node_new_badge, 1, _x + grid_size - ui(12), _y + ui(6));
		}
				
		if(deprecated) {
			draw_sprite_ui_uniform(THEME.node_deprecated_badge, 0, _x + grid_size - ui(12), _y + ui(6),, COLORS._main_value_negative);
			draw_sprite_ui_uniform(THEME.node_deprecated_badge, 1, _x + grid_size - ui(12), _y + ui(6));
		}
		
		var fav = struct_exists(global.FAV_NODES, nodeName);
		if(fav) {
			gpu_set_tex_filter(true);
			draw_sprite_ui_uniform(THEME.star, 0, _x + grid_size - ui(10), _y + grid_size - ui(10), .8, COLORS._main_accent, 1.);
			gpu_set_tex_filter(false);
		}
		
		var spr_x = _x + grid_size - 4;
		var spr_y = _y + 4;
				
		if(IS_PATREON && patreon) {
			BLEND_SUBTRACT
			gpu_set_colorwriteenable(0, 0, 0, 1);
			draw_sprite_ext(THEME.patreon_supporter, 0, spr_x, spr_y, 1, 1, 0, c_white, 1);
			gpu_set_colorwriteenable(1, 1, 1, 1);
			BLEND_NORMAL
			
			draw_sprite_ext(THEME.patreon_supporter, 1, spr_x, spr_y, 1, 1, 0, COLORS._main_accent, 1);
			
			if(point_in_circle(_mx, _my, spr_x, spr_y, 10)) TOOLTIP = __txt("Supporter exclusive");
		}
		
		if(icon) draw_sprite_ext(icon, 0, spr_x, spr_y, 1, 1, 0, c_white, 1);
	}
	
	static drawList = function(_x, _y, _mx, _my, _h, _w, _param = {}) {
		var fav = struct_exists(global.FAV_NODES, nodeName);
		if(fav) {
			gpu_set_tex_filter(true);
			draw_sprite_ui_uniform(THEME.star, 0, _x + ui(16), _y + _h / 2, .8, COLORS._main_accent, 1.);
			gpu_set_tex_filter(false);
		}
				
		var spr_x = _x + ui(32) + _h / 2;
		var spr_y = _y + _h / 2;
				
		var ss = (_h - ui(8)) / max(sprite_get_width(spr), sprite_get_height(spr));
		gpu_set_tex_filter(true);
		draw_sprite_ext(spr, 0, spr_x, spr_y, ss, ss, 0, c_white, 1);
		gpu_set_tex_filter(false);
		
		var tx = spr_x + _h / 2 + ui(4);
		var ty =    _y + _h / 2;
				
		if(new_node) {
			var _nx = _w - ui(6 + 18);
			draw_sprite_ui_uniform(THEME.node_new_badge, 0, _nx, _y + _h / 2,, COLORS._main_accent);
			draw_sprite_ui_uniform(THEME.node_new_badge, 1, _nx, _y + _h / 2);
		}
				
		if(deprecated) {
			var _nx = _w - ui(6 + 18);
			draw_sprite_ui_uniform(THEME.node_deprecated_badge, 0, _nx, _y + _h / 2,, COLORS._main_value_negative);
			draw_sprite_ui_uniform(THEME.node_deprecated_badge, 1, _nx, _y + _h / 2);
		}	
		
		var _txt   = getName();
		var _query = struct_try_get(_param, "query", "");
		var _range = struct_try_get(_param, "range", 0);
		
		if(_query != "") {
			draw_set_text(f_p2, fa_left, fa_center, COLORS._main_text_sub);
			draw_text_add(tx, ty, _txt);
			tx += string_width(_txt);
			draw_sprite_ext(THEME.arrow, 0, tx + ui(12), ty, 1, 1, 0, COLORS._main_icon, 1);
			tx += ui(24);
			
			_query = string_title(_query);
			draw_set_text(f_p2, fa_left, fa_center, COLORS._main_text);
			if(_range == 0) draw_text_add(tx, ty, _query);
			else            draw_text_match_range(tx, ty, _query, _range);
			tx += string_width(_query);
			
		} else {
			draw_set_text(f_p2, fa_left, fa_center, COLORS._main_text);
			if(_range == 0) draw_text_add(tx, ty, _txt);
			else            draw_text_match_range(tx, ty, _txt, _range);
			tx += string_width(_txt);
		}
		
		if(IS_PATREON && patreon) {
			var spr_x = tx + ui(4);
			var spr_y = _y + _h / 2 - ui(6);
						
			gpu_set_colorwriteenable(0, 0, 0, 1); BLEND_SUBTRACT
			draw_sprite_ext(THEME.patreon_supporter, 0, spr_x, spr_y, 1, 1, 0, c_white, 1);
			gpu_set_colorwriteenable(1, 1, 1, 1); BLEND_NORMAL
			
			draw_sprite_ext(THEME.patreon_supporter, 1, spr_x, spr_y, 1, 1, 0, COLORS._main_accent, 1);
			
			if(point_in_circle(_mx, _my, spr_x, spr_y, ui(10))) TOOLTIP = __txt("Supporter exclusive");
			
			tx += ui(12);
		}
		
		return tx;
	}
	
	static serialize = function() {
		var _str = {
			name,
			
			spr: sprite_get_name(spr),
			baseNode: nodeName,
			io: ioArray,
		}
		
		if(tooltip != "")      _str.tooltip        = tooltip;
		if(createFn != noone)  _str.build          = script_get_name(createFn);
		if(deprecated)         _str.deprecated     = true;
		if(pxc_version)        _str.pxc_version    = pxc_version;
		if(!show_in_recent)    _str.show_in_recent = show_in_recent;
		if(!array_empty(tags)) _str.alias          = tags;
		
		return _str;
	}
	
	static deserialize = function(_data, _dir) {
		sourceDir = _dir;
		
		if(struct_has(_data, "tooltip")) setTooltip(_data.tooltip);
		
		if(struct_has(_data, "spr")) {
			var _ispr = _data[$ "spr"];
			_spr = asset_get_index(_ispr);
				
			if(sprite_exists(_spr))
				spr = _spr;
			else 
				print($"Node icon not found {_ispr}");
			
		} else {
			var pth = $"{sourceDir}/icon.png";
			if(file_exists_empty(pth)) {
				spr = sprite_add(pth, 0, false, false, 0, 0);
				sprite_set_offset(spr, sprite_get_width(spr) / 2, sprite_get_height(spr) / 2);
			}
		}
			
		if(struct_has(_data, "io")) {
			var _io = _data.io;
			for( var i = 0, n = array_length(_io); i < n; i++ ) 
				setIO(value_type_from_string(_io[i]));
		}
		
		if(struct_has(_data, "build")) {
			var _bfn = asset_get_index(_data.build);
			if(_bfn != -1) setBuild(_bfn);
		}
	
		if(struct_has(_data, "deprecated"))
			isDeprecated();
		
		if(struct_has(_data, "alias"))
			setTags(_data.alias);
			
		if(struct_has(_data, "show_in_recent"))
			show_in_recent = _data.show_in_recent;
			
		if(struct_has(_data, "pxc_version"))
			setVersion(_data.pxc_version);
		
		if(struct_has(_data, "params"))
			setParam(_data.params);
			
		if(struct_has(_data, "author"))
			author = _data.author;
			
		if(struct_has(_data, "license"))
			license = _data.license;
			
		if(struct_has(_data, "position")) {
			for( var i = 0, n = array_length(_data.position); i < n; i++ ) {
				var pos = _data.position[i];
				if(struct_has(CUSTOM_NODES_POSITION, pos))
					array_push(CUSTOM_NODES_POSITION[$ pos], self);
				else 
					CUSTOM_NODES_POSITION[$ pos] = [ self ];
			}
		}
		
		return self;
	}
}

function nodeBuild(_name, _x, _y, _group = PANEL_GRAPH.getCurrentContext()) {
	INLINE
	
	if(!struct_has(ALL_NODES, _name)) {
		log_warning("LOAD", $"Node type {_name} not found");
		return noone;
	}
	
	var _node  = ALL_NODES[$ _name];
	var _bnode = _node.build(_x, _y, _group);
	
	return _bnode;
}

	////- Nodes

function __read_node_directory(dir) {
	if(!directory_exists(dir)) return;
	__read_node_folder(dir);
	
	var _dirs = [];
	var _f = file_find_first(dir + "/*", fa_directory);
	var f, p;
	
	while(_f != "") {
		 f = _f;
		 p = dir + "/" + f;
		_f = file_find_next();
		
		if(!directory_exists(p)) continue;
		array_push(_dirs, p);
	}
	file_find_close();
	
	array_foreach(_dirs, function(d) /*=>*/ {return __read_node_directory(d)});
}

function __read_node_folder(dir) {
	var _info = dir + "/info.json";
	if(!file_exists(_info)) return;
	
	var _data = json_load_struct(_info);
	var _name = _data[$ "name"];
	var _base = _data[$ "baseNode"];
	var _inme = _data[$ "iname"] ?? _base;
	var _custom = _data[$ "custom"] ?? false;
	
	if(is_undefined(_base)) {
		print($"NODE ERROR: baseNode not found in {_info}.");
		return;
	}
	
	if(struct_has(ALL_NODES, _inme))
		print($"NODE WARNING: Duplicate node iname {_inme} | {dir}.");
		
	var _node = asset_get_index(_base);
	var _n = new NodeObject(_name, _node);
	
	_n.nodekey = _inme;
	_n.deserialize(_data, dir);
	
	ALL_NODES[$ _inme] = _n;
	
	if(_custom) array_push(CUSTOM_NODES, _n);
	return _n;
}

function __read_node_display(_list) {
	var _currLab = "";
	
	for( var i = 0, n = array_length(_list); i < n; i++ ) {
		var _dl     = _list[i];
		var _name   = _dl.name;
		var _iname  = _dl[$ "iname"] ?? _name;
		var _filter = _dl[$ "context"] ?? undefined;
		var _ctx    = _dl[$ "globalContext"] ?? "";
		var _color  = struct_has(_dl, "color")? COLORS[$ _dl.color] : undefined;
		
		var _kname = _iname;
		var _nodes = _dl.nodes;
		var _head  = "";
		var _lab   = "";
		
		if(struct_has(NODE_CATEGORY_MAP, _iname)) {
			_lobj = NODE_CATEGORY_MAP[$ _iname];
			_l = _lobj.list;
			
		} else {
			var _l     = [];
			var _lobj  = { 
				name   : _name, 
				list   : _l, 
				filter : _filter,
				color  : _color,
			};
			NODE_CATEGORY_MAP[$ _iname] = _lobj;
		}
		
		switch(_ctx) {
			case "pb"  : array_push(NODE_PB_CATEGORY, _lobj);  break;
			case "pcx" : array_push(NODE_PCX_CATEGORY, _lobj); break;
			default    : array_insert(NODE_CATEGORY, NODE_PAGE_LAST++, _lobj); break;
		}
		
		for( var j = 0, m = array_length(_nodes); j < m; j++ ) {
			var _n = _nodes[j];
			
			if(is_string(_n)) {
				if(struct_has(ALL_NODES, _n)) {
					var _node = ALL_NODES[$ _n];
					
					if(_node.new_node) {
						if(_currLab != _head)
							array_push(NEW_NODES, _head);
						_currLab = _head;
						array_push(NEW_NODES, _node);
					}
					
					array_push(_l, _node);
					
				} else {
					var _txt = $"Missing node data [{_n}]: Check if node folder exists in {DIRECTORY}Nodes\Internal";
					// print(_txt);
					noti_warning(_txt);
				}
			}
			
			if(is_struct(_n) && struct_has(_n, "label")) {
				var _k = _kname; if(_head != "") _k += "/" + _head; if(_lab != "") _k += "/" + _lab;
				array_append(_l, CUSTOM_NODES_POSITION[$ _k]);
				
				if(!string_starts_with(_n.label, "/")) _head = _n.label; 
				else _lab = string_trim_start(_n.label, ["/"]);
				
				array_push(_l, _n.label);
			}
		}
		
		var _k = _kname; if(_head != "") _k += "/" + _head; if(_lab != "") _k += "/" + _lab;
		array_append(_l, CUSTOM_NODES_POSITION[$ _k]);
	}
	
}

function __read_node_display_folder(dir) {
	if(!directory_exists(dir)) return;
	
	var _dirs = [];
	var _f = file_find_first(dir + "/*", fa_directory);
	
	while(_f != "") {
		array_push(_dirs, dir + "/" + _f);
		_f = file_find_next();
	}
	file_find_close();
	
	var _f = file_find_first(dir + "/*", 0);
	
	while(_f != "") {
		if(_f == "display_data.json") {
			var _data = json_load_struct(dir + "/" + _f);
			__read_node_display(_data);
		}
		
		_f = file_find_next();
	}
	file_find_close();
	
	array_foreach(_dirs, function(d) /*=>*/ {return __read_node_display_folder(d)});
}

function __initNodes(unzip = true) { 
	CUSTOM_NODES_POSITION = {};
	ALL_NODES		      = {};
	NODE_CATEGORY_MAP     = {};
	NODE_CATEGORY	      = [];
	NODE_PB_CATEGORY      = [];
	NODE_PCX_CATEGORY     = [];
	SUPPORTER_NODES       = [];
	NEW_NODES		      = [];
	CUSTOM_NODES	      = [];
	CUSTOM_NODES_POSITION = {};
	
	global.FAV_NODES      = {};
	
	NODE_PAGE_DEFAULT = 0;
	ADD_NODE_PAGE     = 0;
	NODE_PAGE_LAST    = 0;
	
	////- DATA
	
	if(unzip) {
		directory_verify($"{DIRECTORY}Nodes");
		if(check_version($"{DIRECTORY}Nodes/version")) 
			zip_unzip("data/Nodes/Internal.zip", $"{DIRECTORY}Nodes");
	}
	
	__read_node_directory($"{DIRECTORY}Nodes");
	
	if(IS_CMD) return;
	
	////- DISPLAY
	
	if(unzip) {
		var _relFrom = $"data/Nodes/display_data.json";
		var _relTo   = $"{DIRECTORY}Nodes/display_data.json";
		file_copy_override(_relFrom, _relTo);
	}
	
	__read_node_display_folder($"{DIRECTORY}Nodes");
	
	__initNodeActions();           array_push(NODE_CATEGORY, { name : "Action", list : NODE_ACTION_LIST });
	if(IS_PATREON)                 array_push(NODE_CATEGORY, { name : "Extra",  list : SUPPORTER_NODES  });
	if(!array_empty(CUSTOM_NODES)) array_push(NODE_CATEGORY, { name : "Custom", list : CUSTOM_NODES     });
	
	////- FAV
	
	var favPath = $"{DIRECTORY}Nodes/fav.json";
	if(file_exists_empty(favPath)) {
		var favs = json_load_struct(favPath);
		for (var i = 0, n = array_length(favs); i < n; i++)
			global.FAV_NODES[$ favs[i]] = 1;
	}
	
	var recPath = $"{DIRECTORY}Nodes/recent.json";
	global.RECENT_NODES = file_exists_empty(recPath)? json_load_struct(recPath) : [];
	if(!is_array(global.RECENT_NODES)) global.RECENT_NODES = [];
}

function __generateNodeData() {
	var _dir = "D:/Project/MakhamDev/LTS-PixelComposer/PixelComposer/datafiles/data/Nodes/Internal"
	
	for( var i = 0, n = array_length(NODE_CATEGORY); i < n; i++ ) {
		var _cat = NODE_CATEGORY[i];
		
		var _lnme = _cat.name;
		var _list = _cat.list;
		directory_verify($"{_dir}/{_lnme}");
		
		for( var j = 0, m = array_length(_list); j < m; j++ ) {
			var _node = _list[j];
			if(!is(_node, NodeObject)) continue;
			
			var _nme  = _node.nodeName;
			var _vnme = filename_name_validate(_nme);
			
			var _str  = _node.serialize();
			directory_verify($"{_dir}/{_lnme}/{_vnme}");
			json_save_struct($"{_dir}/{_lnme}/{_vnme}/info.json", _str, true);
		}
	}
	
	for( var i = 0, n = array_length(NODE_PB_CATEGORY); i < n; i++ ) {
		var _cat = NODE_PB_CATEGORY[i];
		
		var _lnme = _cat.name;
		var _list = _cat.list;
		directory_verify($"{_dir}/{_lnme}");
		
		for( var j = 0, m = array_length(_list); j < m; j++ ) {
			var _node = _list[j];
			if(!is(_node, NodeObject)) continue;
			
			var _nme  = _node.nodeName;
			var _vnme = filename_name_validate(_nme);
			
			var _str  = _node.serialize();
			directory_verify($"{_dir}/pb_{_lnme}/{_vnme}");
			json_save_struct($"{_dir}/pb_{_lnme}/{_vnme}/info.json", _str, true);
		}
	}
	
	for( var i = 0, n = array_length(NODE_PCX_CATEGORY); i < n; i++ ) {
		var _cat = NODE_PCX_CATEGORY[i];
		
		var _lnme = _cat.name;
		var _list = _cat.list;
		directory_verify($"{_dir}/{_lnme}");
		
		for( var j = 0, m = array_length(_list); j < m; j++ ) {
			var _node = _list[j];
			if(!is(_node, NodeObject)) continue;
			
			var _nme  = _node.nodeName;
			var _vnme = filename_name_validate(_nme);
			
			var _str  = _node.serialize();
			directory_verify($"{_dir}/pcx_{_lnme}/{_vnme}");
			json_save_struct($"{_dir}/pcx_{_lnme}/{_vnme}/info.json", _str, true);
		}
	}
}