312 lines
8.1 KiB
JavaScript
312 lines
8.1 KiB
JavaScript
function Tool()
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{
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this.index = 0;
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this.layers = [[],[],[]];
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this.styles = [
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{thickness:5,strokeLinecap:"round",strokeLinejoin:"round",color:"#f00",fill:"none",dash:[0,0]},
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{thickness:5,strokeLinecap:"round",strokeLinejoin:"round",color:"#0f0",fill:"none",dash:[0,0]},
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{thickness:5,strokeLinecap:"round",strokeLinejoin:"round",color:"#00f",fill:"none",dash:[0,0]}
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];
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this.verteces = [];
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this.reqs = {line:2,arc_c:2,arc_r:2,bezier:3,close:0};
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this.start = function()
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{
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this.styles[0].color = dotgrid.theme.active.f_high
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this.styles[1].color = dotgrid.theme.active.f_med
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this.styles[2].color = dotgrid.theme.active.f_low
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}
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this.reset = function()
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{
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this.layers = [[],[],[]];
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this.verteces = [];
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this.index = 0;
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}
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this.clear = function()
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{
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this.verteces = [];
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dotgrid.preview();
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dotgrid.draw();
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}
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this.undo = function()
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{
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this.layers = dotgrid.history.prev();
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dotgrid.draw();
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}
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this.redo = function()
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{
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this.layers = dotgrid.history.next();
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dotgrid.draw();
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}
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// I/O
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this.export = function(target = {layers:this.layers,styles:this.styles})
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{
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return JSON.stringify(copy(target), null, 2);
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}
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this.import = function(layer)
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{
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this.layers[this.index] = this.layers[this.index].concat(layer)
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dotgrid.history.push(this.layers);
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this.clear();
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dotgrid.draw();
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}
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this.replace = function(dot)
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{
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if(!dot.layers || dot.layers.length != 3){ console.log("Incompatible version"); return; }
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this.layers = dot.layers;
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this.styles = dot.styles;
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this.clear();
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dotgrid.draw();
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dotgrid.history.push(this.layers);
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}
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// EDIT
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this.remove_segment = function()
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{
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if(this.verteces.length > 0){ this.clear(); return; }
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this.layer().pop();
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this.clear();
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dotgrid.draw();
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}
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this.remove_segments_at = function(pos)
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{
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for(segment_id in this.layer()){
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var segment = this.layer()[segment_id];
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for(vertex_id in segment.verteces){
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var vertex = segment.verteces[vertex_id];
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if(Math.abs(pos.x) == Math.abs(vertex.x) && Math.abs(pos.y) == Math.abs(vertex.y)){
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segment.verteces.splice(vertex_id,1)
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}
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}
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if(segment.verteces.length < 2){
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this.layers[this.index].splice(segment_id,1)
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}
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}
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this.clear();
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dotgrid.draw();
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}
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this.add_vertex = function(pos)
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{
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this.verteces.push(pos);
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}
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this.vertex_at = function(pos)
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{
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for(segment_id in this.layer()){
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var segment = this.layer()[segment_id];
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for(vertex_id in segment.verteces){
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var vertex = segment.verteces[vertex_id];
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if(vertex.x == Math.abs(pos.x) && vertex.y == Math.abs(pos.y)){
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return vertex;
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}
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}
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}
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return null;
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}
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this.cast = function(type)
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{
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if(!this.layer()){ this.layers[this.index] = []; }
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if(!this.can_cast(type)){ console.warn("Cannot cast"); return; }
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var append_target = this.can_append({type:type,verteces:this.verteces.slice()})
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if(append_target){
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this.layers[this.index][append_target].verteces = this.layers[this.index][append_target].verteces.concat(this.verteces.slice())
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}
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else{
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this.layer().push({type:type,verteces:this.verteces.slice()})
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}
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this.clear();
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dotgrid.draw();
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dotgrid.history.push(this.layers);
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console.log(`Casted ${type} -> ${this.layer().length} elements`);
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}
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this.can_append = function(content)
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{
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for(id in this.layer()){
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var stroke = this.layer()[id];
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if(stroke.type != content.type){ continue; }
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if(!stroke.verteces[stroke.verteces.length-1]){ continue; }
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if(stroke.verteces[stroke.verteces.length-1].x != content.verteces[0].x){ continue; }
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if(stroke.verteces[stroke.verteces.length-1].y != content.verteces[0].y){ continue; }
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return id;
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}
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return false;
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}
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this.can_cast = function(type)
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{
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if(!type){ return false; }
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// Cannot cast close twice
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if(type == "close"){
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var prev = this.layer()[this.layer().length-1];
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if(!prev || prev.type == "close"){
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return false;
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}
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}
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return this.verteces.length >= this.reqs[type];
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}
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this.path = function(layer = this.layer())
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{
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if(layer.length > 0 && layer[0].type == "close"){ return ""; }
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var html = "";
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for(id in layer){
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var segment = layer[id];
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html += segment.type == "close" ? "Z " : this.render(segment,0);
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// Three-folds
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html += segment.type == "close" ? "Z " : this.render(segment,120);
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html += segment.type == "close" ? "Z " : this.render(segment,240);
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// Five-folds
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// html += segment.type == "close" ? "Z " : this.render(segment,72);
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// html += segment.type == "close" ? "Z " : this.render(segment,72*2);
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// html += segment.type == "close" ? "Z " : this.render(segment,72*3);
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// html += segment.type == "close" ? "Z " : this.render(segment,72*4);
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}
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return html
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}
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this.paths = function()
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{
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return [this.path(this.layers[0]),this.path(this.layers[1]),this.path(this.layers[2])]
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}
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this.render = function(segment, angle = 0)
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{
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var type = segment.type;
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var verteces = segment.verteces;
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var html = ``;
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var skip = 0;
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for(id in verteces){
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if(skip > 0){ skip -= 1; continue; }
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var vertex = this.mirror_mod(verteces[id],angle);
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var next = verteces[parseInt(id)+1]
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var after_next = verteces[parseInt(id)+2]
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if(id == 0){
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html += `M${vertex.x},${vertex.y} `; continue;
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}
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if(type == "line"){
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html += `L${vertex.x},${vertex.y} `;
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}
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else if(type == "arc_c" && next){
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html += `A${next.x - vertex.x},${next.y - vertex.y} 0 0,1 ${next.x},${next.y} `;
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}
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else if(type == "arc_r" && next){
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html += `A${next.x - vertex.x},${next.y - vertex.y} 0 0,0 ${next.x},${next.y} `;
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}
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else if(type == "bezier" && next && after_next){
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html += `Q${next.x},${next.y} ${after_next.x},${after_next.y} `;
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skip = 1
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}
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}
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return html
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}
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this.mirror_mod = function(vertex,angle)
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{
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return rotate_point(vertex.x,vertex.y,150,150,angle)
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}
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function rotate_point(pointX, pointY, originX, originY, angle)
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{
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angle = angle * Math.PI / 180.0;
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return {
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x: Math.cos(angle) * (pointX-originX) - Math.sin(angle) * (pointY-originY) + originX,
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y: Math.sin(angle) * (pointX-originX) + Math.cos(angle) * (pointY-originY) + originY
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};
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}
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this.translate = function(a,b)
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{
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for(segment_id in this.layer()){
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var segment = this.layer()[segment_id];
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for(vertex_id in segment.verteces){
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var vertex = segment.verteces[vertex_id];
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if(vertex.x == Math.abs(a.x) && vertex.y == Math.abs(a.y)){
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segment.verteces[vertex_id] = {x:Math.abs(b.x),y:Math.abs(b.y)};
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}
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}
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}
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dotgrid.history.push(this.layers);
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this.clear();
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dotgrid.draw();
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}
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this.translate_multi = function(a,b)
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{
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var offset = {x:a.x - b.x,y:a.y - b.y}
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for(segment_id in this.layer()){
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var segment = this.layer()[segment_id];
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for(vertex_id in segment.verteces){
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var vertex = segment.verteces[vertex_id];
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segment.verteces[vertex_id] = {x:vertex.x+offset.x,y:vertex.y-offset.y};
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}
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}
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dotgrid.history.push(this.layers);
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this.clear();
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dotgrid.draw();
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}
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// Style
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this.style = function()
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{
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if(!this.styles[this.index]){
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this.styles[this.index] = [];
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}
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return this.styles[this.index];
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}
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// Layers
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this.layer = function()
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{
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if(!this.layers[this.index]){
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this.layers[this.index] = [];
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}
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return this.layers[this.index];
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}
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this.select_layer = function(id)
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{
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this.index = clamp(id,0,2);
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this.clear();
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dotgrid.draw();
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console.log(`layer:${this.index}`)
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}
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this.select_next_layer = function()
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{
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this.index = this.index >= 2 ? 0 : this.index+1
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this.select_layer(this.index);
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}
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function copy(data){ return data ? JSON.parse(JSON.stringify(data)) : []; }
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function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }
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} |