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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| { | ||
| "extends": [ | ||
| "development" | ||
| ], | ||
| "hints": { | ||
| "no-inline-styles": "off", | ||
| "compat-api/css": [ | ||
| "default", | ||
| { | ||
| "ignore": [ | ||
| "height: fit-content", | ||
| "overflow-wrap: anywhere" | ||
| ] | ||
| } | ||
| ], | ||
| "detect-css-reflows/composite": "off", | ||
| "detect-css-reflows/layout": "off", | ||
| "detect-css-reflows/paint": "off", | ||
| "axe/forms": [ | ||
| "default", | ||
| { | ||
| "select-name": "off", | ||
| "label": "off" | ||
| } | ||
| ], | ||
| "axe/aria": [ | ||
| "default", | ||
| { | ||
| "aria-required-attr": "off", | ||
| "aria-toggle-field-name": "off", | ||
| "aria-allowed-attr": "off" | ||
| } | ||
| ], | ||
| "disown-opener": "off", | ||
| "axe/name-role-value": [ | ||
| "default", | ||
| { | ||
| "link-name": "off" | ||
| } | ||
| ] | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // @ts-ignore | ||
| /** @typedef {import("./engine.js")} */ | ||
|
|
||
| "use strict"; | ||
|
|
||
| class Animator extends Engine { | ||
| /** | ||
| * @param {HTMLCanvasElement} canvas | ||
| * @param {Boolean} launch | ||
| */ | ||
| constructor(canvas, launch = false) { | ||
| super(launch); | ||
| const instance = this; | ||
| instance.#handler = () => { }; | ||
| const context = (() => { | ||
| const result = canvas.getContext(`2d`); | ||
| if (!result) { | ||
| throw new ReferenceError(`Element 'context' isn't defined.`); | ||
| } | ||
| return result; | ||
| })(); | ||
| function resize() { | ||
| const { width, height } = canvas.getBoundingClientRect(); | ||
| canvas.width = width; | ||
| canvas.height = height; | ||
| context.translate(width / 2, height / 2); | ||
| instance.#handler(context); | ||
| } | ||
| resize(); | ||
| window.addEventListener(`resize`, resize); | ||
| super.renderer(() => { | ||
| instance.#handler(context); | ||
| }); | ||
| } | ||
| /** @type {(context: CanvasRenderingContext2D) => void} */ #handler; | ||
| /** | ||
| * @param {(context: CanvasRenderingContext2D) => void} handler | ||
| */ | ||
| renderer(handler) { | ||
| this.#handler = handler; | ||
| } | ||
| /** | ||
| * @param {Number} period time in miliseconds | ||
| * @returns multiplier - [0, 1] | ||
| */ | ||
| impulse(period) { | ||
| return this.time % period / period; | ||
| } | ||
| /** | ||
| * @param {Number} period time in miliseconds | ||
| * @returns multiplier - [-1, 1] | ||
| */ | ||
| pulse(period) { | ||
| return Math.sin(this.impulse(period) * 2 * Math.PI); | ||
| } | ||
| /** | ||
| * @param {Number} period time in miliseconds | ||
| * @returns multiplier - [0, 1] | ||
| */ | ||
| bounce(period) { | ||
| return Math.abs(this.pulse(period)); | ||
| } | ||
| } |
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