Pixel-Composer/scripts/node_path/node_path.gml

enum _ANCHOR {
	x,
	y,
	c1x,
	c1y,
	c2x,
	c2y,
	
	ind,
	amount
}

function Node_Path(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
	name = "Path";
	
	setDimension(96, 48);
	
	newInput(0, nodeValue_Float("Path progress", self, 0, "Sample position from path."))
		.setDisplay(VALUE_DISPLAY.slider);
	
	newInput(1, nodeValue_Bool("Loop", self, false))
		.rejectArray();
	
	newInput(2, nodeValue_Enum_Scroll("Progress mode", self,  0, ["Entire line", "Segment"]))
		.rejectArray();
	
	newInput(3, nodeValue_Bool("Round anchor", self, false))
		.rejectArray();
		
	newOutput(0, nodeValue_Output("Position out", self, VALUE_TYPE.float, [ 0, 0 ]))
		.setDisplay(VALUE_DISPLAY.vector);
		
	newOutput(1, nodeValue_Output("Path data", self, VALUE_TYPE.pathnode, self));
		
	newOutput(2, nodeValue_Output("Anchors", self, VALUE_TYPE.float, []))
		.setVisible(false)
		.setArrayDepth(1);
	
	input_display_list = [
		["Path",		false], 1, 3, 
		["Sampling",	false], 0, 2, 
		["Anchors",		false], 
	];
	
	output_display_list  = [ 1, 0, 2 ];
	path_preview_surface = noone;
	
	setDynamicInput(1, false);
	
	tool_pathDrawer = new NodeTool( "Draw path", THEME.path_tools_draw )	
		.addSetting("Smoothness", VALUE_TYPE.float,   function(val) { tool_pathDrawer.attribute.thres = val; }, "thres", 4)
		.addSetting("Replace",    VALUE_TYPE.boolean, function() { tool_pathDrawer.attribute.create = !tool_pathDrawer.attribute.create; }, "create", true);
	
	tools = [
		new NodeTool( "Transform", THEME.path_tools_transform ),
		new NodeTool( "Anchor add / remove", THEME.path_tools_add ),
		new NodeTool( "Edit Control point", THEME.path_tools_anchor ),
		tool_pathDrawer,
		new NodeTool( "Rectangle path", THEME.path_tools_rectangle ),
		new NodeTool( "Circle path", THEME.path_tools_circle ),
	];
	
	#region ---- path ----
		path_loop    = false;
		anchors		 = [];
		segments     = [];
		lengths		 = [];
		lengthAccs	 = [];
		lengthTotal	 = 0;
		boundary     = new BoundingBox();
	
		cached_pos = ds_map_create();
	#endregion
	
	#region ---- editor ----
		line_hover = -1;
	
		drag_point    = -1;
		drag_points   = [];
		drag_type     = 0;
		drag_point_mx = 0;
		drag_point_my = 0;
		drag_point_sx = 0;
		drag_point_sy = 0;
	
		transform_type = 0;
		transform_minx = 0; transform_miny = 0;
		transform_maxx = 0; transform_maxy = 0;
		transform_cx = 0;   transform_cy = 0;
		transform_sx = 0;   transform_sy = 0;
		transform_mx = 0;   transform_my = 0;
	#endregion
	
	static resetDisplayList = function() {
		recordAction(ACTION_TYPE.var_modify,  self, [ array_clone(input_display_list), "input_display_list" ]);
		
		input_display_list = array_clone(input_display_list_raw);
		
		for( var i = input_fix_len, n = array_length(inputs); i < n; i++ ) {
			array_push(input_display_list, i);
			inputs[i].name = $"Anchor {i - input_fix_len}";
		}
	}
	
	static newAnchor = function(_x = 0, _y = 0, _dxx = 0, _dxy = 0, _dyx = 0, _dyy = 0) { return [ _x, _y, _dxx, _dxy, _dyx, _dyy, false ]; }
	
	static createNewInput = function(_x = 0, _y = 0, _dxx = 0, _dxy = 0, _dyx = 0, _dyy = 0, rec = true) {
		var index = array_length(inputs);
		
		newInput(index, nodeValue_Path_Anchor("Anchor", self, newAnchor( _x, _y, _dxx, _dxy, _dyx, _dyy )));
		
		if(rec) {
			recordAction(ACTION_TYPE.array_insert, inputs, [ inputs[index], index, $"add path anchor point {index}" ]);
			resetDisplayList();
		}
		
		return inputs[index];
	}
	
	static onValueUpdate = function(index = 0) {
		if(index != 2) return;
		
		var type = getInputData(2);	
		inputs[0].setDisplay(type == 0? VALUE_DISPLAY.slider : VALUE_DISPLAY._default);
	}
	
	static drawPreview = function(_x, _y, _s) {}
 
	static drawOverlay = function(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) {
		var ansize = array_length(inputs) - input_fix_len;
		var edited = false;
		
		var pos = outputs[0].getValue();
		var p/*:_ANCHOR*/;
		
		draw_set_color(COLORS._main_accent);
		draw_circle(_x + pos[0] * _s, _y + pos[1] * _s, 4, false);
		
		/////////////////////////////////////////////////////// EDIT ///////////////////////////////////////////////////////
		
		if(transform_type > 0) { 
			var _transform_minx = transform_minx;
			var _transform_miny = transform_miny;
			var _transform_maxx = transform_maxx;
			var _transform_maxy = transform_maxy;
			
			if(transform_type == 5) { // move
				var mx = _mx, my = _my;
				
				if(key_mod_press(SHIFT)) {
					var dirr = point_direction(transform_sx, transform_sy, _mx, _my) + 360;
					var diss = point_distance( transform_sx, transform_sy, _mx, _my);
					var ang  = round((dirr) / 45) * 45;
					mx = transform_sx + lengthdir_x(diss, ang);
					my = transform_sy + lengthdir_y(diss, ang);
				}
				
				var dx = mx - transform_mx;
				var dy = my - transform_my;
				
				for( var i = input_fix_len; i < array_length(inputs); i++ ) {
					p    = array_clone(getInputData(i));
					p[@_ANCHOR.x] += dx / _s;
					p[@_ANCHOR.y] += dy / _s;
						
					if(inputs[i].setValue(p))
						edited = true;
				}
				
				transform_mx = mx;
				transform_my = my;
			
			} else { // scale
				var mx = (_mx - _x) / _s;
				var my = (_my - _y) / _s;
				
				switch(transform_type) {
					case 1 :
						if(key_mod_press(SHIFT)) {
							var _dx = mx - _transform_maxx;
							var _dy = my - _transform_maxy;
							var _dd = max(abs(_dx), abs(_dy));
						
							mx = _transform_maxx + _dd * sign(_dx);
							my = _transform_maxy + _dd * sign(_dy);
						}
						
						transform_minx = mx;
						transform_miny = my;
						
						if(key_mod_press(ALT)) {
							transform_maxx = transform_cx - (mx - transform_cx);
							transform_maxy = transform_cy - (my - transform_cy);
						}
						break;
						
					case 2 :
						if(key_mod_press(SHIFT)) {
							var _dx = mx - _transform_minx;
							var _dy = my - _transform_maxy;
							var _dd = max(abs(_dx), abs(_dy));
						
							mx = _transform_minx + _dd * sign(_dx);
							my = _transform_maxy + _dd * sign(_dy);
						}
					
						transform_maxx = mx;
						transform_miny = my;
						
						if(key_mod_press(ALT)) {
							transform_minx = transform_cx - (mx - transform_cx);
							transform_maxy = transform_cy - (my - transform_cy);
						}
						break;
						
					case 3 :
						if(key_mod_press(SHIFT)) {
							var _dx = mx - _transform_maxx;
							var _dy = my - _transform_miny;
							var _dd = max(abs(_dx), abs(_dy));
						
							mx = _transform_maxx + _dd * sign(_dx);
							my = _transform_miny + _dd * sign(_dy);
						}
					
						transform_minx = mx;
						transform_maxy = my;
						
						if(key_mod_press(ALT)) {
							transform_maxx = transform_cx - (mx - transform_cx);
							transform_miny = transform_cy - (my - transform_cy);
						}
						break;
						
					case 4 :
						if(key_mod_press(SHIFT)) {
							var _dx = mx - _transform_minx;
							var _dy = my - _transform_miny;
							var _dd = max(abs(_dx), abs(_dy));
						
							mx = _transform_minx + _dd * sign(_dx);
							my = _transform_miny + _dd * sign(_dy);
						}
						
						transform_maxx = mx;
						transform_maxy = my;
						
						if(key_mod_press(ALT)) {
							transform_minx = transform_cx - (mx - transform_cx);
							transform_miny = transform_cy - (my - transform_cy);
						}
						break;
				}
				
				var  tr_rx =  transform_maxx -  transform_minx;
				var  tr_ry =  transform_maxy -  transform_miny;
				var _tr_rx = _transform_maxx - _transform_minx;
				var _tr_ry = _transform_maxy - _transform_miny;
				
				for( var i = input_fix_len; i < array_length(inputs); i++ ) {
					var p = array_clone(getInputData(i));
					
					var _p2 = p[_ANCHOR.x] + p[_ANCHOR.c1x];
					var _p3 = p[_ANCHOR.y] + p[_ANCHOR.c1y];
					var _p4 = p[_ANCHOR.x] + p[_ANCHOR.c2x];
					var _p5 = p[_ANCHOR.y] + p[_ANCHOR.c2y];
					
					p[@_ANCHOR.x] = transform_minx + (p[_ANCHOR.x] - _transform_minx) / _tr_rx * tr_rx;
					p[@_ANCHOR.y] = transform_miny + (p[_ANCHOR.y] - _transform_miny) / _tr_ry * tr_ry;
					
					_p2 = transform_minx + (_p2 - _transform_minx) / _tr_rx * tr_rx;
					_p3 = transform_miny + (_p3 - _transform_miny) / _tr_ry * tr_ry;
					_p4 = transform_minx + (_p4 - _transform_minx) / _tr_rx * tr_rx;
					_p5 = transform_miny + (_p5 - _transform_miny) / _tr_ry * tr_ry;
					
					p[@_ANCHOR.c1x] = _p2 - p[_ANCHOR.x];
					p[@_ANCHOR.c1y] = _p3 - p[_ANCHOR.y];
					p[@_ANCHOR.c2x] = _p4 - p[_ANCHOR.x];
					p[@_ANCHOR.c2y] = _p5 - p[_ANCHOR.y];
					
					if(inputs[i].setValue(p))
						edited = true;
				}
			}
			
			if(edited) UNDO_HOLDING = true;
				
			if(mouse_release(mb_left)) {
				transform_type = 0;
				UNDO_HOLDING   = false;
				RENDER_ALL
			}
			
		} else if(drag_point > -1) { 
			var dx = value_snap(drag_point_sx + (_mx - drag_point_mx) / _s, _snx);
			var dy = value_snap(drag_point_sy + (_my - drag_point_my) / _s, _sny);
			
			if(drag_type < 2) { // move points
				var inp = inputs[input_fix_len + drag_point];
				var anc/*:_ANCHOR*/ = array_clone(inp.getValue());
				
				if(drag_type != 0 && key_mod_press(SHIFT))
					anc[@_ANCHOR.ind] = !anc[_ANCHOR.ind];
				
				if(drag_type == 0) { //drag anchor point
					anc[@_ANCHOR.x] = dx;
					anc[@_ANCHOR.y] = dy;
					if(key_mod_press(CTRL)) {
						anc[@_ANCHOR.x] = round(anc[_ANCHOR.x]);
						anc[@_ANCHOR.y] = round(anc[_ANCHOR.y]);
					}
					
				} else if(drag_type == 1) { //drag control 1
					anc[@_ANCHOR.c1x] = dx - anc[_ANCHOR.x];
					anc[@_ANCHOR.c1y] = dy - anc[_ANCHOR.y];
					
					if(!anc[_ANCHOR.ind]) {
						anc[@_ANCHOR.c2x] = -anc[_ANCHOR.c1x];
						anc[@_ANCHOR.c2y] = -anc[_ANCHOR.c1y];
					}
					
					if(key_mod_press(CTRL)) {
						anc[@_ANCHOR.c1x] = round(anc[_ANCHOR.c1x]);
						anc[@_ANCHOR.c1y] = round(anc[_ANCHOR.c1y]);
						
						if(!anc[_ANCHOR.ind]) {
							anc[@_ANCHOR.c2x] = round(anc[_ANCHOR.c2x]);
							anc[@_ANCHOR.c2y] = round(anc[_ANCHOR.c2y]);
						}
					}
					
				} else if(drag_type == -1) { //drag control 2
					anc[@_ANCHOR.c2x] = dx - anc[_ANCHOR.x];
					anc[@_ANCHOR.c2y] = dy - anc[_ANCHOR.y];
					
					if(!anc[_ANCHOR.ind]) {
						anc[@_ANCHOR.c1x] = -anc[_ANCHOR.c2x];
						anc[@_ANCHOR.c1y] = -anc[_ANCHOR.c2y];
					}
					
					if(key_mod_press(CTRL)) {
						anc[@_ANCHOR.c2x] = round(anc[_ANCHOR.c2x]);
						anc[@_ANCHOR.c2y] = round(anc[_ANCHOR.c2y]);
						
						if(!anc[_ANCHOR.ind]) {
							anc[@_ANCHOR.c1x] = round(anc[_ANCHOR.c1x]);
							anc[@_ANCHOR.c1y] = round(anc[_ANCHOR.c1y]);
						}
					}
				} 
				
				if(inp.setValue(anc))
					edited = true;
			
			} else if(drag_type == 2) { // pen tools
				var ox, oy, nx, ny;
				var pxx = (_mx - _x) / _s;
				var pxy = (_my - _y) / _s;
				
				draw_set_color(COLORS._main_accent);
				for( var i = 0, n = array_length(drag_points); i < n; i++ ) {
					var _p/*:_ANCHOR*/ = drag_points[i];
					nx = _x + _p[_ANCHOR.x] * _s;
					ny = _y + _p[_ANCHOR.y] * _s;
					
					if(i) draw_line(ox, oy, nx, ny);
					
					ox = nx;
					oy = ny;
				}
				
				if(point_distance(drag_point_mx, drag_point_my, pxx, pxy) > 4 / _s) {
					array_push(drag_points, [ pxx, pxy ]);
					
					drag_point_mx = pxx;
					drag_point_my = pxy;
				}
				
				if(mouse_release(mb_left)) {
					var amo		= array_length(drag_points);
					var _p      = 0;
					var points	= [];
					var thres   = tool_pathDrawer.attribute.thres;
					var replace = tool_pathDrawer.attribute.create;
					var asize   = array_length(inputs) - input_fix_len;
					
					for( var i = 0; i < amo; i++ ) {
						var pT = drag_points[i];
						
						if(i == 0 || i == amo - 1) {
							array_push(points, i);
							continue;
						}
						
						var maxT = 0;
						var pF   = drag_points[_p];
						
						for( var j = _p; j < i; j++ ) {
							var pP = drag_points[j];
							maxT = max(maxT, distance_to_line(pP[0], pP[1], pF[0], pF[1], pT[0], pT[1]));
						}
						
						if(maxT >= thres) {
							array_push(points, i);
							_p = i;
						}
					}
					
					var amo = array_length(points);
					if(!replace) amo = min(amo, asize);
					
					var i   = 0;
					var anc = [];
					
					for( i = 0; i < amo; i++ ) {
						var  ind = replace? i : clamp(i / amo * array_length(points), 0, array_length(points) - 1);
						var _ind = points[ind];
						var _p   = drag_points[_ind];
						var dxx  = 0;
						var dxy  = 0;
						var dyx  = 0;
						var dyy  = 0;
						
						if(i > 0 && i < amo - 1) {
							var _p0/*:_ANCHOR*/ = drag_points[points[i - 1]];
							var _p1/*:_ANCHOR*/ = drag_points[points[i + 1]];
							
							var d0  = point_direction(_p0[_ANCHOR.x], _p0[_ANCHOR.y],  _p[_ANCHOR.x],  _p[_ANCHOR.y]);
							var d1  = point_direction( _p[_ANCHOR.x],  _p[_ANCHOR.y], _p1[_ANCHOR.x], _p1[_ANCHOR.y]);
							
							var dd  = d0 + angle_difference(d1, d0) / 2;
							var ds0 = point_distance(_p0[_ANCHOR.x], _p0[_ANCHOR.y],  _p[_ANCHOR.x],  _p[_ANCHOR.y]);
							var ds1 = point_distance( _p[_ANCHOR.x],  _p[_ANCHOR.y], _p1[_ANCHOR.x], _p1[_ANCHOR.y]);
							
							dxx = lengthdir_x(ds0 / 3, dd + 180);
							dxy = lengthdir_y(ds0 / 3, dd + 180);
							dyx = lengthdir_x(ds1 / 3, dd);
							dyy = lengthdir_y(ds1 / 3, dd);
						}
						
						anc = [ _p[_ANCHOR.x], _p[_ANCHOR.y], dxx, dxy, dyx, dyy ];
						if(input_fix_len + i >= array_length(inputs))
							createNewInput(_p[_ANCHOR.x], _p[_ANCHOR.y], dxx, dxy, dyx, dyy);
						else 
							inputs[input_fix_len + i].setValue(anc);
					}
					
					if(!replace) {
						for(; i < asize; i++ )
							inputs[input_fix_len + i].setValue(anc);
					}
				}
			
			} else if(drag_type == 3 || drag_type == 4) { // draw rectangle
				var minx = min((_mx - _x) / _s, (drag_point_mx - _x) / _s);
				var maxx = max((_mx - _x) / _s, (drag_point_mx - _x) / _s);
				var miny = min((_my - _y) / _s, (drag_point_my - _y) / _s);
				var maxy = max((_my - _y) / _s, (drag_point_my - _y) / _s);
				
				minx = value_snap(minx, _snx);
				maxx = value_snap(maxx, _snx);
				miny = value_snap(miny, _sny);
				maxy = value_snap(maxy, _sny);
				
				if(key_mod_press(ALT)) {
					var _ccx = (drag_point_mx - _x) / _s;
					var _ccy = (drag_point_my - _y) / _s;
					
					var _ww  = (maxx - minx) / 2;
					var _hh  = (maxy - miny) / 2;
					
					if(key_mod_press(SHIFT)) {
						var _n = max(_ww, _hh);
						_ww = _n;
						_hh = _n;
					}
					
					minx = _ccx - _ww;
					maxx = _ccx + _ww;
					
					miny = _ccy - _hh;
					maxy = _ccy + _hh;
					
				} else if(key_mod_press(SHIFT)) {
					var _n = max(maxx - minx, maxy - miny);
					maxx = minx + _n;
					maxy = miny + _n;
				}
				
				if(drag_type == 3) {
					edited |= inputs[input_fix_len + 0].setValue(newAnchor(minx, miny));
					edited |= inputs[input_fix_len + 1].setValue(newAnchor(maxx, miny));
					edited |= inputs[input_fix_len + 2].setValue(newAnchor(maxx, maxy));
					edited |= inputs[input_fix_len + 3].setValue(newAnchor(minx, maxy));
					
				} else if(drag_type == 4) {
						
					var _cnx = (maxx + minx) / 2;
					var _cny = (maxy + miny) / 2;
					var _ccx = (maxx - minx) * 0.27614;
					var _ccy = (maxy - miny) * 0.27614;
					
					edited |= inputs[input_fix_len + 0].setValue(newAnchor( _cnx, miny, -_ccx,     0,  _ccx,     0));
					edited |= inputs[input_fix_len + 1].setValue(newAnchor( maxx, _cny,     0, -_ccy,     0,  _ccy));
					edited |= inputs[input_fix_len + 2].setValue(newAnchor( _cnx, maxy,  _ccx,     0, -_ccx,     0));
					edited |= inputs[input_fix_len + 3].setValue(newAnchor( minx, _cny,     0,  _ccy,     0, -_ccy));
					
				}
			} 
			
			if(edited) UNDO_HOLDING = true;
			
			if(mouse_release(mb_left)) {
				drag_point = -1;
				RENDER_ALL
				UNDO_HOLDING = false;
			}
		}
		
		/////////////////////////////////////////////////////// DRAW PATH ///////////////////////////////////////////////////////
		
		var _line_hover  = -1;
		var anchor_hover = -1;
		var hover_type   = 0;
		
		var points = [];
		var _a0, _a1;
		
		var minx =  99999, miny =  99999;
		var maxx = -99999, maxy = -99999;
				
		if(isUsingTool(4) || isUsingTool(5)) {
			draw_set_color(COLORS._main_icon);
			
			if(drag_point > -1) { 
				var minx = min(_mx, drag_point_mx);
				var maxx = max(_mx, drag_point_mx);
				var miny = min(_my, drag_point_my);
				var maxy = max(_my, drag_point_my);
				
				if(key_mod_press(ALT)) {
					var _ccx = drag_point_mx;
					var _ccy = drag_point_my;
					
					var _ww  = (maxx - minx) / 2;
					var _hh  = (maxy - miny) / 2;
					
					if(key_mod_press(SHIFT)) {
						var _n = max(_ww, _hh);
						_ww = _n;
						_hh = _n;
					}
					
					minx = _ccx - _ww;
					maxx = _ccx + _ww;
					
					miny = _ccy - _hh;
					maxy = _ccy + _hh;
					
					draw_set_alpha(0.75);
					draw_line(_ccx, 0, _ccx, WIN_H);
					draw_line(0, _ccy, WIN_W, _ccy);
					draw_set_alpha(1);
					
				} else if(key_mod_press(SHIFT)) {
					var _n = max(maxx - minx, maxy - miny);
					maxx = minx + _n;
					maxy = miny + _n;
				}
				
				draw_set_alpha(0.5);
				draw_line(minx, 0, minx, WIN_H);
				draw_line(0, miny, WIN_W, miny);
				
				draw_line(maxx, 0, maxx, WIN_H);
				draw_line(0, maxy, WIN_W, maxy);
				draw_set_alpha(1);
				
			} else {
				draw_set_alpha(0.5);
				draw_line(_mx, 0, _mx, WIN_H);
				draw_line(0, _my, WIN_W, _my);
				draw_set_alpha(1);
			}
			
		}
				
		if(!array_empty(anchors)) {
			draw_set_color(isUsingTool(0)? COLORS._main_icon : COLORS._main_accent);
			
			for( var i = 0, n = array_length(segments); i < n; i++ ) { // draw path
				var _seg = segments[i];
				var _ox  = 0, _oy = 0, _nx = 0, _ny = 0, p = 0;
					
				for( var j = 0, m = array_length(_seg); j < m; j += 2 ) {
					_nx = _x + _seg[j + 0] * _s;
					_ny = _y + _seg[j + 1] * _s;
						
					minx = min(minx, _nx); maxx = max(maxx, _nx);
					miny = min(miny, _ny); maxy = max(maxy, _ny);
					
					if(j) {
						if(hover && (key_mod_press(CTRL) || isUsingTool(1)) && distance_to_line(_mx, _my, _ox, _oy, _nx, _ny) < 4)
							_line_hover = i;
						draw_line_width(_ox, _oy, _nx, _ny, 1 + 2 * (line_hover == i));
					}
				
					_ox = _nx;
					_oy = _ny;
				}
			}
			
			#region draw anchor
				if(hover != -1 && !isUsingTool(0))
				for(var i = 0; i < ansize; i++) {
					var _a   = anchors[i];
					var xx   = _x + _a[0] * _s;
					var yy   = _y + _a[1] * _s;
					var cont = false;
					var _ax0 = 0, _ay0 = 0;
					var _ax1 = 0, _ay1 = 0;
			
					if(array_length(_a) < 6) continue;
					
					if(_a[2] != 0 || _a[3] != 0 || _a[4] != 0 || _a[5] != 0) {
						_ax0 = _x + (_a[0] + _a[2]) * _s;
						_ay0 = _y + (_a[1] + _a[3]) * _s;
						_ax1 = _x + (_a[0] + _a[4]) * _s;
						_ay1 = _y + (_a[1] + _a[5]) * _s;
						cont = true;
			
						draw_set_color(COLORS.node_path_overlay_control_line);
						draw_line(_ax0, _ay0, xx, yy);
						draw_line(_ax1, _ay1, xx, yy);
				
						draw_sprite_colored(THEME.anchor_selector, 2, _ax0, _ay0);
						draw_sprite_colored(THEME.anchor_selector, 2, _ax1, _ay1);
					}
					
					draw_sprite_colored(THEME.anchor_selector, 0, xx, yy);
					draw_set_text(f_p1, fa_left, fa_bottom, COLORS._main_accent);
					draw_text(xx + ui(4), yy - ui(4), inputs[input_fix_len + i].name);
	
					if(drag_point == i) {
						draw_sprite_colored(THEME.anchor_selector, 1, xx, yy);
						
					} else if(hover && point_in_circle(_mx, _my, xx, yy, 8)) {
						draw_sprite_colored(THEME.anchor_selector, 1, xx, yy);
						anchor_hover = i;
						hover_type   = 0;
						
					} else if(cont && hover && point_in_circle(_mx, _my, _ax0, _ay0, 8)) {
						draw_sprite_colored(THEME.anchor_selector, 0, _ax0, _ay0);
						anchor_hover = i;
						hover_type   = 1;
						
					} else if(cont && hover && point_in_circle(_mx, _my, _ax1, _ay1, 8)) {
						draw_sprite_colored(THEME.anchor_selector, 0, _ax1, _ay1);
						anchor_hover =  i;
						hover_type   = -1;
					}
				}
			#endregion
		}
		
		if(hover == -1) return false;
		line_hover = _line_hover;
		
		/////////////////////////////////////////////////////// TOOLS ///////////////////////////////////////////////////////
		
		if(isUsingTool(0)) { // transform tools
			var hov = 0;
				 if(hover && point_in_circle(_mx, _my, minx, miny, 8)) hov = 1;
			else if(hover && point_in_circle(_mx, _my, maxx, miny, 8)) hov = 2;
			else if(hover && point_in_circle(_mx, _my, minx, maxy, 8)) hov = 3;
			else if(hover && point_in_circle(_mx, _my, maxx, maxy, 8)) hov = 4;
			else if(hover && point_in_rectangle(_mx, _my, minx, miny, maxx, maxy)) hov = 5;
			
			draw_set_color(COLORS._main_accent);
			draw_rectangle_border(minx, miny, maxx, maxy, 1 + (hov == 5));
			
			draw_sprite_colored(THEME.anchor_selector, hov == 1, minx, miny);
			draw_sprite_colored(THEME.anchor_selector, hov == 2, maxx, miny);
			draw_sprite_colored(THEME.anchor_selector, hov == 3, minx, maxy);
			draw_sprite_colored(THEME.anchor_selector, hov == 4, maxx, maxy);
			
			if(hov && mouse_press(mb_left, active)) {
				transform_type = hov;
				transform_minx = (minx - _x) / _s;	transform_maxx = (maxx - _x) / _s;
				transform_miny = (miny - _y) / _s;	transform_maxy = (maxy - _y) / _s;
				transform_mx   = _mx;				transform_my   = _my;
				transform_sx   = _mx;				transform_sy   = _my;
				
				transform_cx   = (transform_minx + transform_maxx) / 2; 
				transform_cy   = (transform_miny + transform_maxy) / 2;
			}
		
		} else if(isUsingTool(3)) {	//pen tools
			draw_sprite_ui_uniform(THEME.path_tools_draw, 0, _mx + 16, _my + 16);
			
			if(mouse_press(mb_left, active)) {
				var replace = tool_pathDrawer.attribute.create;
				if(replace) {
					while(array_length(inputs) > input_fix_len)
						array_delete(inputs, input_fix_len, 1);
					resetDisplayList();
				}
				
				drag_point    = 0;
				drag_type     = 2;
				drag_points   = [ [ (_mx - _x) / _s, (_my - _y) / _s ] ];
				drag_point_mx = (_mx - _x) / _s;
				drag_point_my = (_my - _y) / _s;
			}
		
		} else if(isUsingTool(4) || isUsingTool(5)) { // shape tools
			draw_sprite_ui_uniform(THEME.cursor_path_add, 0, _mx + 16, _my + 16);
			
			if(mouse_press(mb_left, active)) {
				while(array_length(inputs) > input_fix_len)
					array_delete(inputs, input_fix_len, 1);
				resetDisplayList();
				
				drag_point    = 0;
				drag_type     = isUsingTool(4)? 3 : 4;
				drag_point_mx = _mx;
				drag_point_my = _my;
				inputs[1].setValue(true);
				
				repeat(4)
					createNewInput(value_snap((_mx - _x) / _s, _snx), value_snap((_my - _y) / _s, _sny));
			}
		
		} else if(anchor_hover != -1) { // no tool, dragging existing point
			var _a/*:_ANCHOR*/ = array_clone(getInputData(input_fix_len + anchor_hover));
			if(isUsingTool(2) && hover_type == 0) {
				draw_sprite_ui_uniform(THEME.cursor_path_anchor, 0, _mx + 16, _my + 16);
				
				if(mouse_press(mb_left, active)) {
					if(_a[_ANCHOR.c1x] != 0 || _a[_ANCHOR.c1y] != 0 || _a[_ANCHOR.c2x] != 0 || _a[_ANCHOR.c2y] != 0) {
						_a[@_ANCHOR.c1x] = 0;
						_a[@_ANCHOR.c1y] = 0;
						_a[@_ANCHOR.c2x] = 0;
						_a[@_ANCHOR.c2y] = 0;
						_a[@_ANCHOR.ind] = false;
						inputs[input_fix_len + anchor_hover].setValue(_a);
					} else {
						_a[@_ANCHOR.c1x] = -8;
						_a[@_ANCHOR.c1y] = 0;
						_a[@_ANCHOR.c2x] = 8;
						_a[@_ANCHOR.c2y] = 0;	
						_a[@_ANCHOR.ind] = false;
						
						drag_point    = anchor_hover;
						drag_type     = 1;
						drag_point_mx = _mx;
						drag_point_my = _my;
						drag_point_sx = _a[_ANCHOR.x];
						drag_point_sy = _a[_ANCHOR.y];
					}
				}
			} else if(hover_type == 0 && key_mod_press(SHIFT)) { //remove
				draw_sprite_ui_uniform(THEME.cursor_path_remove, 0, _mx + 16, _my + 16);
				
				if(mouse_press(mb_left, active)) {
					var _indx = input_fix_len + anchor_hover;
					recordAction(ACTION_TYPE.array_delete, inputs, [ inputs[_indx], _indx, "remove path anchor point" ]);
					
					array_delete(inputs, _indx, 1);
					resetDisplayList();
					doUpdate();
				}
			} else {
				draw_sprite_ui_uniform(THEME.cursor_path_move, 0, _mx + 16, _my + 16);
				
				if(mouse_press(mb_left, active)) {
					if(isUsingTool(2)) {
						_a[@_ANCHOR.ind] = true;
						inputs[input_fix_len + anchor_hover].setValue(_a);
					}
						
					drag_point    = anchor_hover;
					drag_type     = hover_type;
					drag_point_mx = _mx;
					drag_point_my = _my;
					drag_point_sx = _a[_ANCHOR.x];
					drag_point_sy = _a[_ANCHOR.y];
					
					if(hover_type == 1) {
						drag_point_sx = _a[_ANCHOR.x] + _a[_ANCHOR.c1x];
						drag_point_sy = _a[_ANCHOR.y] + _a[_ANCHOR.c1y];	
						
					} else if(hover_type == -1) {
						drag_point_sx = _a[_ANCHOR.x] + _a[_ANCHOR.c2x];
						drag_point_sy = _a[_ANCHOR.y] + _a[_ANCHOR.c2y];
					} 
				}
			}
		
		} else if(key_mod_press(CTRL) || isUsingTool(1)) { // anchor edit
			draw_sprite_ui_uniform(THEME.cursor_path_add, 0, _mx + 16, _my + 16);
			
			if(mouse_press(mb_left, active)) {
				var ind = array_length(inputs);
				var anc = createNewInput(value_snap((_mx - _x) / _s, _snx), value_snap((_my - _y) / _s, _sny), 0, 0, 0, 0, false);
				
				if(_line_hover == -1) {
					drag_point = array_length(inputs) - input_fix_len - 1;
				} else {
					array_remove(inputs, anc);
					array_insert(inputs, input_fix_len + _line_hover + 1, anc);
					drag_point = _line_hover + 1;
					ind = input_fix_len + _line_hover + 1;
				}
				
				recordAction(ACTION_TYPE.array_insert, inputs, [ inputs[ind], ind, $"add path anchor point {ind}" ]);
				resetDisplayList();
				UNDO_HOLDING = true;
				
				drag_type     = -1;
				drag_point_mx = _mx;
				drag_point_my = _my;
				drag_point_sx = (_mx - _x) / _s;
				drag_point_sy = (_my - _y) / _s;
				
				RENDER_ALL
			}
		}
		
		return true;
	}
	
	static updateLength = function() {
		boundary     = new BoundingBox();
		segments     = [];
		lengths      = [];
		lengthAccs   = [];
		lengthTotal  = 0;
		
		var _index  = 0;
		var sample  = PREFERENCES.path_resolution;
		var ansize  = array_length(inputs) - input_fix_len;
		if(ansize < 2) return;
		
		var con = path_loop? ansize : ansize - 1;
		
		for(var i = 0; i < con; i++) {
			var _a0 = anchors[(i + 0) % ansize];
			var _a1 = anchors[(i + 1) % ansize];
			
			var l = 0, _ox = 0, _oy = 0, _nx = 0, _ny = 0, p = 0;
			var sg = array_create((sample + 1) * 2);
			
			for(var j = 0; j <= sample; j++) {
				
				if(_a0[4] == 0 && _a0[5] == 0 && _a1[2] == 0 && _a1[3] == 0) {
					_nx = lerp(_a0[0], _a1[0], j / sample);
					_ny = lerp(_a0[1], _a1[1], j / sample);
					
				} else {
					_nx = eval_bezier_x(j / sample, _a0[0],  _a0[1], _a1[0],  _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
					_ny = eval_bezier_y(j / sample, _a0[0],  _a0[1], _a1[0],  _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
				}
				
				sg[j * 2 + 0] = _nx;
				sg[j * 2 + 1] = _ny;
				
				boundary.addPoint(_nx, _ny);
				if(j) l += point_distance(_nx, _ny, _ox, _oy);	
				
				_ox = _nx;
				_oy = _ny;
			}
			
			segments[i]   = sg;
			lengths[i]    = l;
			lengthTotal  += l;
			lengthAccs[i] = lengthTotal;
		}
		
		// Surface generate
		
		var pad    = min(8, abs(boundary.maxx - boundary.minx) * 0.1, abs(boundary.maxy - boundary.miny) * 0.1);
		var minx   = boundary.minx - pad, miny = boundary.miny - pad;
		var maxx   = boundary.maxx + pad, maxy = boundary.maxy + pad;
		var rngx   = maxx - minx,   rngy = maxy - miny;
		var prev_s = 128;
		var _surf  = surface_create(prev_s, prev_s);
		
		_surf = surface_verify(_surf, prev_s, prev_s);
		surface_set_target(_surf);
			DRAW_CLEAR
			
			var ox, oy, nx, ny;
			draw_set_color(c_white);
			for (var i = 0, n = array_length(segments); i < n; i++) {
				var segment = segments[i];
				
				for (var j = 0, m = array_length(segment); j < m; j += 2) {
					nx = (segment[j + 0] - minx) / rngx * prev_s;
					ny = (segment[j + 1] - miny) / rngy * prev_s;
					
					if(j) draw_line_round(ox, oy, nx, ny, 4);
					
					ox = nx;
					oy = ny;
				}
			}
			
			draw_set_color(COLORS._main_accent);
			for (var i = 0, n = array_length(anchors); i < n; i++) {
				var _a0 = anchors[i];
				draw_circle((_a0[0] - minx) / rngx * prev_s, (_a0[1] - miny) / rngy * prev_s, 8, false);
			}
		surface_reset_target();
		
		path_preview_surface = surface_verify(path_preview_surface, prev_s, prev_s);
		surface_set_shader(path_preview_surface, sh_FXAA);
			shader_set_f("dimension",  prev_s, prev_s);
			shader_set_f("cornerDis",  0.5);
			shader_set_f("mixAmo",     1);
			
			draw_surface_safe(_surf);
		surface_reset_shader();
		
		surface_free(_surf);
	}
	
	static getLineCount		= function() { return 1; }
	static getSegmentCount	= function() { return array_length(lengths); }
	static getBoundary		= function() { return boundary; }
	
	static getLength		= function() { return lengthTotal; }
	static getAccuLength	= function() { return lengthAccs; }
	
	static getPointDistance = function(_dist, _ind = 0, out = undefined) {
		if(out == undefined) out = new __vec2(); else { out.x = 0; out.y = 0; }
		if(array_empty(lengths)) return out;
		
		var _cKey = _dist;
		
		if(ds_map_exists(cached_pos, _cKey)) {
			var _cachep = cached_pos[? _cKey];
			out.x = _cachep.x;
			out.y = _cachep.y;
			return out;
		}
		
		var loop = getInputData(1);
		if(loop) _dist = safe_mod(_dist, lengthTotal, MOD_NEG.wrap);
		
		var ansize = array_length(inputs) - input_fix_len;
		if(ansize == 0) return out;
		
		var _a0, _a1;
		
		for(var i = 0; i < ansize; i++) {
			_a0 = anchors[(i + 0) % ansize];
			_a1 = anchors[(i + 1) % ansize];
			
			var _l = array_safe_get(lengths, i, 0, ARRAY_OVERFLOW.clamp);
			if(_dist > _l) {
				_dist -= _l;
				continue;
			}
			
			var _t = _l == 0? 0 : _dist / _l;
			
			if(_a0[4] == 0 && _a0[5] == 0 && _a1[2] == 0 && _a1[3] == 0) {
				out.x = lerp(_a0[0], _a1[0], _t);
				out.y = lerp(_a0[1], _a1[1], _t);
			} else {
				out.x = eval_bezier_x(_t, _a0[0], _a0[1], _a1[0], _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
				out.y = eval_bezier_y(_t, _a0[0], _a0[1], _a1[0], _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
			}
			
			cached_pos[? _cKey] = out.clone();
			return out;
		}
		
		return out;
	}
	
	static getPointRatio = function(_rat, _ind = 0, out = undefined) {
		var pix = (path_loop? frac(_rat) : clamp(_rat, 0, 0.99)) * lengthTotal;
		return getPointDistance(pix, _ind, out);
	}
	
	static getPointSegment = function(_rat) {
		if(array_empty(lengths)) return new __vec2();
		
		var loop   = getInputData(1);
		var ansize = array_length(inputs) - input_fix_len;
		
		if(_rat < 0) return new __vec2(anchors[0][0], anchors[0][1]);
		
		_rat = safe_mod(_rat, ansize);
		var _i0 = clamp(floor(_rat), 0, ansize - 1);
		var _i1 = (_i0 + 1) % ansize;
		var _t  = frac(_rat);
		
		if(_i1 >= ansize && !loop) return new __vec2(anchors[ansize - 1][0], anchors[ansize - 1][1]);
		
		var _a0 = anchors[_i0];
		var _a1 = anchors[_i1];
		var px, py;
		
		if(_a0[4] == 0 && _a0[5] == 0 && _a1[2] == 0 && _a1[3] == 0) {
			px = lerp(_a0[0], _a1[0], _t);
			py = lerp(_a0[1], _a1[1], _t);
		} else {
			px = eval_bezier_x(_t, _a0[0], _a0[1], _a1[0], _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
			py = eval_bezier_y(_t, _a0[0], _a0[1], _a1[0], _a1[1], _a0[0] + _a0[4], _a0[1] + _a0[5], _a1[0] + _a1[2], _a1[1] + _a1[3]);
		}
			
		return new __vec2(px, py);
	}
	
	static update = function(frame = CURRENT_FRAME) {
		ds_map_clear(cached_pos);
		
		var _rat  = getInputData(0);
		path_loop = getInputData(1);
		var _typ  = getInputData(2);
		var _rnd  = getInputData(3);
		
		var _a = [];
		for(var i = input_fix_len; i < array_length(inputs); i++) {
			var _val = getInputData(i);
			var _anc = array_create(7, 0);
			
			for(var j = 0; j < 7; j++)
				_anc[j] = array_safe_get(_val, j);
				
			if(_rnd) {
				_anc[0] = round(_val[0]);
				_anc[1] = round(_val[1]);
			}
			
			array_push(_a, _anc);
		}
		
		anchors = _a;
		outputs[2].setValue(_a);
		
		updateLength();
		
		if(is_array(_rat)) {
			var _out = array_create(array_length(_rat));
			
			for( var i = 0, n = array_length(_rat); i < n; i++ ) {
				if(_typ == 0)		_out[i] = getPointRatio(_rat[i]);
				else if(_typ == 1)	_out[i] = getPointSegment(_rat[i]);
			}
			
			outputs[0].setValue(_out);
		} else {
			var _out = [0, 0];
			
			if(_typ == 0)		_out = getPointRatio(_rat);
			else if(_typ == 1)	_out = getPointSegment(_rat);
			
			outputs[0].setValue(_out.toArray());
		}
	}
	
	static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) {
		var bbox = drawGetBbox(xx, yy, _s);
		
		if(array_empty(segments)) {
			draw_sprite_fit(s_node_path, 0, bbox.xc, bbox.yc, bbox.w, bbox.h);
			
		} else {
			gpu_set_tex_filter(true);
			draw_surface_bbox(path_preview_surface, bbox);
			gpu_set_tex_filter(false);
		}
	}
	
	static getPreviewBoundingBox = function() { return BBOX().fromBoundingBox(boundary); }
}