package org.multimc.legacy;/* * Copyright 2012-2014 MultiMC Contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import org.multimc.Launcher; import org.multimc.NotFoundException; import org.multimc.ParamBucket; import org.multimc.Utils; import java.applet.Applet; import java.awt.*; import java.io.File; import java.lang.reflect.Field; import java.net.MalformedURLException; import java.net.URL; import java.net.URLClassLoader; public class LegacyLauncher implements Launcher { @Override public int launch(ParamBucket params) { String userName, sessionId, windowTitle, windowParams, lwjgl; String mainClass = "net.minecraft.client.Minecraft"; try { userName = params.first("userName"); sessionId = params.first("sessionId"); windowTitle = params.first("windowTitle"); windowParams = params.first("windowParams"); lwjgl = params.first("lwjgl"); } catch (NotFoundException e) { System.err.println("Not enough arguments."); return -1; } String cwd = System.getProperty("user.dir"); Dimension winSize = new Dimension(854, 480); boolean maximize = false; String[] dimStrings = windowParams.split("x"); if (windowParams.equalsIgnoreCase("max")) { maximize = true; } else if (dimStrings.length == 2) { try { winSize = new Dimension(Integer.parseInt(dimStrings[0]), Integer.parseInt(dimStrings[1])); } catch (NumberFormatException ignored) {} } File binDir = new File(cwd, "bin"); File lwjglDir; if (lwjgl.equalsIgnoreCase("Mojang")) { lwjglDir = binDir; } else { lwjglDir = new File(lwjgl); } URL[] classpath; { try { classpath = new URL[] { new File(binDir, "minecraft.jar").toURI().toURL(), new File(lwjglDir, "lwjgl.jar").toURI().toURL(), new File(lwjglDir, "lwjgl_util.jar").toURI().toURL(), new File(lwjglDir, "jinput.jar").toURI().toURL(), }; } catch (MalformedURLException e) { System.err.println("Class path entry is badly formed:"); e.printStackTrace(System.err); return -1; } } String nativesDir = new File(lwjglDir, "natives").toString(); System.setProperty("org.lwjgl.librarypath", nativesDir); System.setProperty("net.java.games.input.librarypath", nativesDir); // print the pretty things { System.out.println("Main Class:"); System.out.println(mainClass); System.out.println(); System.out.println("Class Path:"); for (URL s : classpath) { System.out.println(s); } System.out.println(); System.out.println("Native Path:"); System.out.println(nativesDir); System.out.println(); } URLClassLoader cl = new URLClassLoader(classpath, LegacyLauncher.class.getClassLoader()); // Get the Minecraft Class and set the base folder Class mc; try { mc = cl.loadClass(mainClass); Field f = Utils.getMCPathField(mc); if (f == null) { System.err.println("Could not find Minecraft path field. Launch failed."); return -1; } f.setAccessible(true); f.set(null, new File(cwd)); } catch (Exception e) { System.err.println("Could not set base folder. Failed to find/access Minecraft main class:"); e.printStackTrace(System.err); return -1; } System.setProperty("minecraft.applet.TargetDirectory", cwd); String[] mcArgs = new String[2]; mcArgs[0] = userName; mcArgs[1] = sessionId; System.out.println("Launching with applet wrapper..."); try { Class MCAppletClass = cl.loadClass("net.minecraft.client.MinecraftApplet"); Applet mcappl = (Applet) MCAppletClass.newInstance(); LegacyFrame mcWindow = new LegacyFrame(windowTitle); mcWindow.start(mcappl, userName, sessionId, winSize, maximize); } catch (Exception e) { System.err.println("Applet wrapper failed:"); e.printStackTrace(System.err); System.err.println(); System.out.println("Falling back to compatibility mode."); try { mc.getMethod("main", String[].class).invoke(null, (Object) mcArgs); } catch (Exception e1) { System.err.println("Failed to invoke the Minecraft main class:"); e1.printStackTrace(System.err); return -1; } } return 0; } }