Init

components/launcher.js

@@ -0,0 +1,60 @@
+const child = require('child_process');
+const path = require('path');
+const ygg = require('./authenticator');
+const handler = require('./handler');
+const fs = require('fs');
+const shelljs = require('shelljs');
+
+
+module.exports = async function (options) {
+    if (!fs.existsSync(options.root)) fs.mkdirSync(options.root);
+
+    options.authorization = await ygg(options.login.offline, options.login.username, options.login.password);
+
+    const versionFile = await handler.getVersion(options.version.number);
+    const directory = path.join(options.root, 'versions', options.version.number);
+    options.directory = directory;
+    const mcPath = path.join(directory, `${options.version.number}.jar`);
+    const nativePath = await handler.getNatives(options.root, versionFile, options.os);
+
+    if (!fs.existsSync(mcPath)) {
+        await handler.getJar(versionFile, options.version.number, directory);
+    }
+
+    const args = [];
+
+    // CGC
+    args.push('-Xincgc');
+
+    // Memory
+    const memory = [`-Xmx${options.memory.max}M`];
+
+    // Jvm
+    let jvm = [
+        '-XX:-UseAdaptiveSizePolicy',
+        '-XX:-OmitStackTraceInFastThrow',
+        '-Dfml.ignorePatchDiscrepancies=true',
+        '-Dfml.ignoreInvalidMinecraftCertificates=true',
+        `-Djava.library.path=${nativePath}`
+    ];
+    jvm.push(await handler.getJVM(versionFile, options));
+
+    const classes = await handler.getClasses(options.root, versionFile);
+    const classPaths = ['-cp'];
+    classPaths.push(`${mcPath}; ${classes.join(";")}`);
+    classPaths.push(versionFile.mainClass);
+
+    // Download version's assets
+    await handler.getAssets(options.root, versionFile);
+
+    // Launch options
+    const launchOptions = await handler.getLaunchOptions(versionFile, options);
+
+    const arguments = args.concat(memory, jvm, classPaths, launchOptions);
+    const minecraft = child.spawn("java", arguments);
+
+
+    minecraft.stdout.on('data', (data) => {console.log(`[Minecraft] ${data}`)});
+    minecraft.stderr.on('data', (data) => {console.error(`[Error] ${data}`)});
+    minecraft.on('close', (code) => {shelljs.rm('-rf', nativePath); console.log(`Minecraft closed with code ${code}`)});
+};