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258 lines
6.8 KiB
258 lines
6.8 KiB
const canvas = document.getElementById("canvas");
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var canvas_width = canvas.offsetWidth;
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var canvas_height = canvas.offsetHeight;
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function sort(array) {
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return array.sort(function(a, b) {
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return a - b;
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})
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}
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const grid_line = {
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stroke: '#ddd',
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}
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// first we need to create a stage
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var stage = new Konva.Stage({
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container: canvas,
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});
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var agent;
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var map_layer = new Konva.Layer();
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var map_group = new Konva.Group();
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var grid_group = new Konva.Group();
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var tile_group = new Konva.Group();
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var agent_group = new Konva.Group();
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var padding;
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map_layer.add(map_group);
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stage.add(map_layer);
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function init_stage() {
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stage.width(canvas_width);
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stage.height(canvas_height);
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map_group.width(stage.width() * 0.6);
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map_group.height(stage.height() * 0.9);
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map_group.setX(stage.width() * 0.2);
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map_group.setY(stage.height() / 2 - (stage.height() * 0.45));
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}
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function draw_agent(state) {
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// cleanup
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agent_group.remove();
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agent_group = new Konva.Group();
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agent = {
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"konva": new Konva.RegularPolygon({
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offset: {
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x: -padding / 2,
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y: -padding / 2
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},
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sides: 5,
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radius: padding / 3,
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fill: '#00D2FF',
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stroke: 'black',
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strokeWidth: padding / 50
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}),
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"target_x": undefined,
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"target_y": undefined,
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"todos": [],
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"_padding": padding,
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set padding(pad){
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this._padding = pad;
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this.konva.offset({x: -padding / 2, y: -padding / 2});
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this.konva.radius(padding / 3);
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this.konva.strokeWidth(padding / 50);
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},
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get x() {
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return Math.floor(this.konva.getX() / this._padding);
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},
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set x(pos) {
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// this.target_x = sort([0, pos, map[0].length - 1])[1] * this._padding;
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this.konva.setX(sort([0, pos, map[0].length - 1])[1] * this._padding);
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map_layer.draw();
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},
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get y() {
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return Math.floor(this.konva.getY() / this._padding);
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},
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set y(pos) {
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// this.target_y = sort([0, pos, map.length - 1])[1] * this._padding;
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this.konva.setY(sort([0, pos, map.length - 1])[1] * this._padding);
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map_layer.draw();
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},
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do_action(action, animate=false){
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let d = maze.get_direction(machine.state, action);
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var y = this.y;
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var x = this.x;
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var fun;
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switch (d) {
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case dir.UP:
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y--;
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fun = function () {return [this.x,this.y-1]}.bind(this);
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break;
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case dir.RIGHT:
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x++;
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fun = function () {return [this.x+1,this.y]}.bind(this);
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break;
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case dir.DOWN:
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y++;
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fun = function () {return [this.x,this.y+1]}.bind(this);
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break;
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case dir.LEFT:
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x--;
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fun = function () {return [this.x-1,this.y]}.bind(this);
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break;
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}
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if (animate){
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console.log(fun);
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this.todos.push(fun);
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console.log(this.todos);
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} else {
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this.todos = [];
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this.target_x = undefined;
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this.target_y = undefined;
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this.x = x;
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this.y = y;
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}
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},
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set_state(state, animate=false){
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let y = Math.floor(state/map[0].length);
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let x = state%map[0].length;
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if (animate){
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this.todos.push([x,y])
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} else {
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this.todos = [];
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this.target_x = undefined;
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this.target_y = undefined;
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this.x = x;
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this.y = y;
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}
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},
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"animation": function () {
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return new Konva.Animation(function(frame) {
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if (this.target_x === undefined || this.target_y === undefined) {
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if (this.todos.length == 0){
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return
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}
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var current = this.todos.shift();
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if (current.length == 2){
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[this.target_x,this.target_y] = current;
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} else {
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[this.target_x,this.target_y] = current();
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}
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}
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var x = sort([0, this.target_x, map[1].length - 1])[1] * this._padding;
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var y = sort([0, this.target_y, map.length - 1])[1] * this._padding;
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var vec = [x-this.konva.getX(),y-this.konva.getY()];
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const length = Math.sqrt(vec[0]**2+vec[1]**2);
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var step = frame.timeDiff*(padding/100);
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if (length < step){
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this.konva.setX(x);
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this.konva.setY(y);
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this.target_x = undefined;
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this.target_y = undefined;
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} else {
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vec[0] = vec[0]/length;
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vec[1] = vec[1]/length;
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this.konva.setX(this.konva.getX()+vec[0]*step);
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this.konva.setY(this.konva.getY()+vec[1]*step);
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}
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}.bind(this), map_layer);
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}
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}
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var anim = agent.animation();
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agent.set_state(state);
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anim.start();
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agent_group.add(agent.konva);
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map_group.add(agent_group);
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}
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function update_agent(state, animate=false) {
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agent.padding = padding;
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agent.set_state(state, animate);
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}
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function draw_map(map) {
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grid_group.remove();
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grid_group = new Konva.Group();
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tile_group.remove();
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tile_group = new Konva.Group();
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init_stage();
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padding = Math.min(map_group.height() / map.length, map_group.width() / map[0].length);
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var strokeW = padding/50;
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const offset = strokeW / 2;
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// x
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for (let i = 0; i < map[0].length + 1; i++) {
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grid_group.add(new Konva.Line({
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points: [Math.round(i * padding), -offset, Math.round(i * padding), padding * map.length + offset],
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strokeWidth: strokeW,
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...grid_line
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}));
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grid_group.width(Math.round(i * padding));
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}
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// y
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for (let j = 0; j < map.length + 1; j++) {
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grid_group.add(new Konva.Line({
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points: [-offset, Math.round(j * padding), padding * map[0].length + offset, Math.round(j * padding)],
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strokeWidth: strokeW,
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...grid_line
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}));
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grid_group.height(Math.round(j * padding));
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}
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for (var idy in map) {
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for (var idx in map[idy]) {
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const layout = {
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x: padding * idx + offset,
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y: padding * idy + offset,
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width: padding - 2 * offset,
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height: padding - 2 * offset,
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// stroke: '#CF6412',
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// strokeWidth: 4
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};
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if (map[idy][idx] == tile.dangerous) {
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tile_group.add(new Konva.Rect({
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...layout,
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fill: '#FF7B17',
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opacity: 1,
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}))
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} else if (map[idy][idx] == tile.end) {
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tile_group.add(new Konva.Rect({
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...layout,
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fill: '#0eb500',
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opacity: 0.5,
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}))
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} else if (map[idy][idx] == tile.start) {
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tile_group.add(new Konva.Rect({
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...layout,
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fill: '#ff0008',
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opacity: 0.5,
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}))
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}
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}
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}
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map_group.offset({
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x: -(map_group.width() - grid_group.width()) / 2,
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y: -(map_group.height() - grid_group.height()) / 2,
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});
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map_group.add(grid_group);
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map_group.add(tile_group);
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map_layer.draw();
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}
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window.addEventListener('resize', function() {
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canvas_width = canvas.offsetWidth;
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canvas_height = canvas.offsetHeight;
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draw_map(map);
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draw_agent(machine.state);
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});
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draw_map(map)
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draw_agent(machine.state)
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