ObjToSchematic/tools/misc.ts

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import fs from "fs";
import path from "path";
import { PNG, PNGWithMetadata } from "pngjs";
import { log, LogStyle } from "./logging";
export const assert = (condition: boolean, onFailMessage: string) => { if (!condition) { log(LogStyle.Failure, onFailMessage); process.exit(0); } }
export function isDirSetup(relativePath: string, jarAssetDir: string) {
const dir = path.join(__dirname, relativePath)
if (fs.existsSync(dir)) {
if (fs.readdirSync(dir).length > 0) {
return true;
}
} else {
fs.mkdirSync(dir);
}
log(LogStyle.Warning, `Copy the contents of .minecraft/versions/<version>/<version>.jar/${jarAssetDir} from a Minecraft game files into ${relativePath}`);
return false;
}
export function getAverageColour(image: PNG) {
let r = 0, g = 0, b = 0;
for (let x = 0; x < image.width; ++x) {
for (let y = 0; y < image.height; ++y) {
const index = 4 * (image.width * y + x);
const rgba = image.data.slice(index, index + 4);
r += rgba[0];
g += rgba[1];
b += rgba[2];
}
}
const numPixels = image.width * image.height;
return { r: r / (255 * numPixels), g: g / (255 * numPixels), b: b / (255 * numPixels) };
}