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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | 1x 1x 1x 1x 5x 17x 17x 17x 17x 10x 1x 9x 9x 5x 2x 2x 16x 9x 9x 16x 9x 9x 9x 9x 7x 7x 6x 7x 2x 1x 1x | "use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.EngineLoop = void 0;
const parent_1 = require("./models/parent");
const frameTime_1 = require("./models/frameTime");
class EngineLoop extends parent_1.Parent {
get isActive() {
return this._isActive;
}
constructor(surfaceSettings, window) {
super();
this._isActive = false;
this._window = window;
this._surfaceSettings = surfaceSettings;
}
start() {
if (this._isActive) {
return;
}
this._isActive = true;
this.request(0);
}
stop() {
this._isActive = false;
}
destroy() {
super.destroy();
this.stop();
}
request(startTime) {
const requestFrame = (endTime) => {
const frameTime = new frameTime_1.FrameTime(startTime, endTime);
this.loop(frameTime);
};
this._window.requestAnimationFrame(requestFrame);
}
loop(frameTime) {
const surfaceSettings = this._surfaceSettings;
const expectedDelta = surfaceSettings.frameLimit > 0
? 1000 / surfaceSettings.frameLimit
: frameTime.delta;
const actualDelta = Math.round(expectedDelta - frameTime.delta);
if (actualDelta <= 0) {
this.children.forEach(scene => scene.update(frameTime));
if (this._isActive) {
this.request(frameTime.end);
}
return;
}
if (this._isActive) {
this.request(frameTime.start);
}
}
}
exports.EngineLoop = EngineLoop;
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