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ad83e89e52
* feat: implement pixel dance animation component, page and command * feat: make entire dance page draggable * feat: add dance transition for ui-iframe extension loading
34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
import { compressToBase64, decompressFromBase64 } from "lz-string"
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/**
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* This file contains the deserialization and compression functions I designed for the grid animation.
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*/
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export function deserializeFrame(frameStr: string): number[][] {
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// Convert string to 2D array. "o" is 0, "l" is 255. Each line is separated by '\n'
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return frameStr.split("\n").map((row) => Array.from(row).map((char) => (char === "o" ? 0 : 1)))
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}
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export function decompressFrame(compressedFrame: string): string {
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// Each char can be "o" or "l". Compress consecutive same char to a number followed by the char.
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let decompressed = []
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let count = ""
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for (let char of compressedFrame) {
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if (!isNaN(parseInt(char))) {
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count += char
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} else {
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if (count) {
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decompressed.push(char.repeat(parseInt(count)))
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count = ""
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} else {
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decompressed.push(char)
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}
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}
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}
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return decompressed.join("")
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}
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// this is simple re-export of lz-string, the purpose is to make it easy to swap to another compression algorithm later without changing other code
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export const compressString = compressToBase64
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export const decompressString = decompressFromBase64
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