@haiku/player/lib/HaikuClock.js

Haiku Player is a JavaScript library for building user interfaces

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var HaikuGlobal_1 = require("./HaikuGlobal");
var SimpleEventEmitter_1 = require("./helpers/SimpleEventEmitter");
var assign_1 = require("./vendor/assign");
var raf_1 = require("./vendor/raf");
var NUMBER = 'number';
var DEFAULT_OPTIONS = {
    frameDuration: 16.666,
    frameDelay: 16.666,
    marginOfErrorForDelta: 1.0,
};
if (!HaikuGlobal_1.default.HaikuGlobalAnimationHarness) {
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness = {};
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness.queue = [];
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness.frame = function HaikuGlobalAnimationHarnessFrame() {
        var queue = HaikuGlobal_1.default.HaikuGlobalAnimationHarness.queue;
        var length = queue.length;
        for (var i = 0; i < length; i++) {
            queue[i]();
        }
        HaikuGlobal_1.default.HaikuGlobalAnimationHarness.raf = raf_1.default.request(HaikuGlobal_1.default.HaikuGlobalAnimationHarness.frame);
    };
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness.cancel = function HaikuGlobalAnimationHarnessCancel() {
        if (HaikuGlobal_1.default.HaikuGlobalAnimationHarness.raf) {
            raf_1.default.cancel(HaikuGlobal_1.default.HaikuGlobalAnimationHarness.raf);
        }
    };
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness.frame();
}
function HaikuClock(tickables, component, options) {
    SimpleEventEmitter_1.default.create(this);
    this._tickables = tickables;
    this._component = component;
    this.assignOptions(options);
    this._isRunning = false;
    this._reinitialize();
    HaikuGlobal_1.default.HaikuGlobalAnimationHarness.queue.push(this.run.bind(this));
    this.GLOBAL_ANIMATION_HARNESS = HaikuGlobal_1.default.HaikuGlobalAnimationHarness;
    this._entityIndex = HaikuClock['clocks'].push(this) - 1;
}
exports.default = HaikuClock;
HaikuClock['clocks'] = [];
HaikuGlobal_1.default['HaikuClock'] = HaikuClock;
HaikuClock.prototype._reinitialize = function _reinitialize() {
    this._numLoopsRun = 0;
    this._localFramesElapsed = 0;
    this._localTimeElapsed = 0;
    this._deltaSinceLastTick = 0;
    this._localExplicitlySetTime = null;
    return this;
};
HaikuClock.prototype.addTickable = function addTickable(tickable) {
    this._tickables.push(tickable);
    return this;
};
HaikuClock.prototype.assignOptions = function assignOptions(options) {
    this.options = assign_1.default(this.options || {}, DEFAULT_OPTIONS, options || {});
    return this;
};
HaikuClock.prototype.run = function run() {
    if (this.isRunning()) {
        if (this._isTimeControlled()) {
            this.tick();
        }
        else {
            this._numLoopsRun++;
            var prevTime = this._localTimeElapsed;
            var nextTime = prevTime + this.options.frameDuration;
            var deltaSinceLastTick = nextTime - prevTime + this._deltaSinceLastTick;
            if (deltaSinceLastTick >=
                this.options.frameDelay - this.options.marginOfErrorForDelta) {
                this.tick();
                this._localFramesElapsed++;
                this._localTimeElapsed = nextTime;
                this._deltaSinceLastTick = 0;
            }
            else {
                this._deltaSinceLastTick = deltaSinceLastTick;
            }
        }
    }
    return this;
};
HaikuClock.prototype.tick = function tick() {
    for (var i = 0; i < this._tickables.length; i++) {
        this._tickables[i].performTick();
    }
    return this;
};
HaikuClock.prototype.getTime = function getTime() {
    return this.getExplicitTime();
};
HaikuClock.prototype.setTime = function setTime(time) {
    this._localExplicitlySetTime = parseInt(time || 0, 10);
    return this;
};
HaikuClock.prototype.getFPS = function getFPS() {
    return Math.round(1000 / this.options.frameDuration);
};
HaikuClock.prototype.getExplicitTime = function getExplicitTime() {
    if (this._isTimeControlled()) {
        return this.getControlledTime();
    }
    return this.getRunningTime();
};
HaikuClock.prototype.getControlledTime = function getControlledTime() {
    return this._localExplicitlySetTime;
};
HaikuClock.prototype._isTimeControlled = function _isTimeControlled() {
    return typeof this._localExplicitlySetTime === NUMBER;
};
HaikuClock.prototype.getRunningTime = function getRunningTime() {
    return this._localTimeElapsed;
};
HaikuClock.prototype.isRunning = function isRunning() {
    return this._isRunning;
};
HaikuClock.prototype.start = function start() {
    this._isRunning = true;
    return this;
};
HaikuClock.prototype.stop = function stop() {
    this._isRunning = false;
    return this;
};
HaikuClock.prototype.getFrameDuration = function getFrameDuration() {
    return this.options.frameDuration;
};
//# sourceMappingURL=HaikuClock.js.map