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import Arena from './arena.mjs';
import Inspector from './inspector.mjs';
const ARENA_SELECTOR = 'x-arena';
const TICK_BUTTON_SELECTOR = '#tick';
const TICK_RATE_SELECTOR = '#tick-rate-select';
const RUN_BUTTON_SELECTOR = '#run';
export default class extends HTMLElement {
static name = 'x-game';
static register() {
console.debug('registering custom element', this.name, this);
self.customElements.define(this.name, this);
}
#running = false;
#robos = [];
#inspectors = [];
#arena;
#tickButton;
#runButton;
#tickRate;
constructor() {
super();
}
connectedCallback() {
console.debug('connectedCallback()', this);
this.#arena = this.querySelector(ARENA_SELECTOR);
this.#tickButton = this.querySelector(TICK_BUTTON_SELECTOR);
this.#runButton = this.querySelector(RUN_BUTTON_SELECTOR);
this.#tickRate = this.querySelector(TICK_RATE_SELECTOR);
this.#inspectors = this.querySelectorAll(Inspector.name);
this.#tickButton.onclick = this.#tickHandler.bind(this);
this.#runButton.onclick = this.#blinkenHandler.bind(this);
this.#tickRate.onchange = this.#tickRateHandler.bind(this);
this.#tickRate.onchange({ target: this.#tickRate });
this.addRobo();
}
addRobo() {
const { x, y } = this.#arena.randStart();
const robo = {
worker: new Worker('robo.mjs', { type: 'module' }),
lastTick: undefined,
heading: 0,
speed: 0,
speedx: 0,
speedy: 0,
x,
y,
}
robo.worker.onmessage = msg => this.#messageHandler(i, msg);
robo.worker.onerror = msg => this.#errorHander(i, msg);
this.#robos.push(robo);
const i = this.#robos.length - 1;
this.#inspectors[i].addEventListener(Inspector.compileRequest, e => {
console.debug('compiling for worker', i, e.detail.text, this.#robos[i].worker);
this.#robos[i].worker.postMessage({ kind: 'compile', text: e.detail.text });
});
}
#messageHandler(i, e) {
const { kind, res, trans } = e.data;
switch (kind) {
case 'compile':
if (res) {
this.#arena.render(this.#robos);
this.#inspectors[i].render(trans, true);
}
break;
case 'tick':
const robo = this.#robos[i];
robo.lastTick = document.timeline.currentTime;
[robo.x, robo.y] = this.#arena.clamp(Arena.radius, robo.x + robo.speedx, robo.y + robo.speedy);
this.#arena.render(this.#robos, robo.lastTick);
robo.heading = trans.vars.heading;
robo.speed = trans.vars.speed;
[robo.speedx, robo.speedy] = [
Math.cos(2 * Math.PI * robo.heading / 360),
Math.sin(2 * Math.PI * robo.heading / 360)
].map(x => robo.speed * x);
this.#inspectors[i].render(trans);
break;
default:
console.error('invalid message from robo worker', e);
}
}
#errorHander(i, e) {
console.error('error in roboWorker', this, i, e);
}
#tickHandler(e) {
console.debug('tick clicked', this, e);
this.#robos.forEach(robo => robo.worker.postMessage({ kind: 'tick' }));
}
#blinkenHandler(e) {
console.debug('blinken clicked', this, e);
this.#running = !this.#running;
if (this.#running) {
e.currentTarget.classList.remove('halten');
e.currentTarget.classList.add('blinken');
e.currentTarget.querySelector('title').textContent = 'halten';
this.#timeoutHandler();
this.#renderFrame(document.timeline.currentTime);
} else {
e.currentTarget.classList.remove('blinken');
e.currentTarget.classList.add('halten');
e.currentTarget.querySelector('title').textContent = 'blinken';
this.#arena.invalidateFPS();
}
}
#tickRateHandler(e) {
console.debug('tick rate changed', this, e, Number(e.target.value));
this.#arena.tickMS = 1_000 / e.target.value;
}
#timeoutHandler() {
if (!this.#running) {
return;
}
self.setTimeout(this.#timeoutHandler.bind(this), this.#arena.tickMS);
this.#robos.forEach(robo => robo.worker.postMessage({ kind: 'tick' }));
}
#renderFrame(t) {
if (!this.#running) {
return;
}
self.requestAnimationFrame(this.#renderFrame.bind(this));
this.#arena.render(this.#robos, t);
}
}
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