@quick-game/cli
Version:
Command line interface for rapid qg development
114 lines • 3.82 kB
JavaScript
// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
export function formatMillisecondsToSeconds(ms, decimalPlaces) {
const roundPower = Math.pow(10, 3 - decimalPlaces);
const denominatorPower = Math.pow(10, Math.max(0, decimalPlaces));
return `${Math.round(ms / roundPower) / denominatorPower} s`;
}
/**
* Manage the bounding box properties for the ticking flame chart.
* kept in a separate file for unit testing.
*/
export class Bounds {
minInternal;
maxInternal;
lowInternal;
highInternal;
maxRange;
minRange;
constructor(initialLow, initialHigh, maxRange, minRange) {
this.minInternal = initialLow;
this.maxInternal = initialHigh;
this.lowInternal = this.minInternal;
this.highInternal = this.maxInternal;
this.maxRange = maxRange;
this.minRange = minRange;
}
get low() {
return this.lowInternal;
}
get high() {
return this.highInternal;
}
get min() {
return this.minInternal;
}
get max() {
return this.maxInternal;
}
get range() {
return this.highInternal - this.lowInternal;
}
reassertBounds() {
let needsAdjustment = true;
while (needsAdjustment) {
needsAdjustment = false;
if (this.range < this.minRange) {
needsAdjustment = true;
const delta = (this.minRange - this.range) / 2;
this.highInternal += delta;
this.lowInternal -= delta;
}
if (this.lowInternal < this.minInternal) {
needsAdjustment = true;
this.lowInternal = this.minInternal;
}
if (this.highInternal > this.maxInternal) {
needsAdjustment = true;
this.highInternal = this.maxInternal;
}
}
}
/**
* zoom out |amount| ticks at position [0, 1] along the current range of the timeline.
*/
zoomOut(amount, position) {
const range = this.highInternal - this.lowInternal;
const growSize = range * Math.pow(1.1, amount) - range;
const lowEnd = growSize * position;
const highEnd = growSize - lowEnd;
this.lowInternal -= lowEnd;
this.highInternal += highEnd;
this.reassertBounds();
}
/**
* zoom in |amount| ticks at position [0, 1] along the current range of the timeline.
*/
zoomIn(amount, position) {
const range = this.highInternal - this.lowInternal;
if (this.range <= this.minRange) {
return;
}
const shrinkSize = range - range / Math.pow(1.1, amount);
const lowEnd = shrinkSize * position;
const highEnd = shrinkSize - lowEnd;
this.lowInternal += lowEnd;
this.highInternal -= highEnd;
this.reassertBounds();
}
/**
* Add Xms to the max value, and scroll the timeline forward if the end is in sight.
*/
addMax(amount) {
const range = this.highInternal - this.lowInternal;
const isAtHighEnd = this.highInternal === this.maxInternal;
const isZoomedOut = this.lowInternal === this.minInternal || range >= this.maxRange;
this.maxInternal += amount;
if (isAtHighEnd && isZoomedOut) {
this.highInternal = this.maxInternal;
}
this.reassertBounds();
}
/**
* Attempt to push the maximum time up to |time| ms.
*/
pushMaxAtLeastTo(time) {
if (this.maxInternal < time) {
this.addMax(time - this.maxInternal);
return true;
}
return false;
}
}
//# sourceMappingURL=TickingFlameChartHelpers.js.map