301 lines
7.9 KiB
Java
301 lines
7.9 KiB
Java
/* Copyright 2012-2017 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.multimc.onesix;
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import org.multimc.*;
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import java.applet.Applet;
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import java.io.File;
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import java.awt.*;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.List;
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public class OneSixLauncher implements Launcher
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{
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// parameters, separated from ParamBucket
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private List<String> libraries;
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private List<String> mcparams;
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private List<String> mods;
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private List<String> jarmods;
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private List<String> coremods;
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private List<String> traits;
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private String appletClass;
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private String mainClass;
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private String nativePath;
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private String userName, sessionId;
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private String windowTitle;
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private String windowParams;
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// secondary parameters
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private Dimension winSize;
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private boolean maximize;
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private String cwd;
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// the much abused system classloader, for convenience (for further abuse)
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private ClassLoader cl;
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private void processParams(ParamBucket params) throws NotFoundException
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{
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libraries = params.all("cp");
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mcparams = params.allSafe("param", new ArrayList<String>() );
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mainClass = params.firstSafe("mainClass", "net.minecraft.client.Minecraft");
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appletClass = params.firstSafe("appletClass", "net.minecraft.client.MinecraftApplet");
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traits = params.allSafe("traits", new ArrayList<String>());
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nativePath = params.first("natives");
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userName = params.first("userName");
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sessionId = params.first("sessionId");
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windowTitle = params.firstSafe("windowTitle", "Minecraft");
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windowParams = params.firstSafe("windowParams", "854x480");
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cwd = System.getProperty("user.dir");
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winSize = new Dimension(854, 480);
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maximize = false;
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String[] dimStrings = windowParams.split("x");
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if (windowParams.equalsIgnoreCase("max"))
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{
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maximize = true;
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}
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else if (dimStrings.length == 2)
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{
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try
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{
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winSize = new Dimension(Integer.parseInt(dimStrings[0]), Integer.parseInt(dimStrings[1]));
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} catch (NumberFormatException ignored) {}
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}
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}
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int legacyLaunch()
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{
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// Get the Minecraft Class and set the base folder
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Class<?> mc;
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try
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{
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mc = cl.loadClass(mainClass);
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Field f = Utils.getMCPathField(mc);
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if (f == null)
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{
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System.err.println("Could not find Minecraft path field.");
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}
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else
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{
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f.setAccessible(true);
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f.set(null, new File(cwd));
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}
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} catch (Exception e)
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{
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System.err.println("Could not set base folder. Failed to find/access Minecraft main class:");
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e.printStackTrace(System.err);
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return -1;
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}
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System.setProperty("minecraft.applet.TargetDirectory", cwd);
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String[] mcArgs = new String[2];
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mcArgs[0] = userName;
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mcArgs[1] = sessionId;
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Utils.log("Launching with applet wrapper...");
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try
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{
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Class<?> MCAppletClass = cl.loadClass(appletClass);
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Applet mcappl = (Applet) MCAppletClass.newInstance();
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LegacyFrame mcWindow = new LegacyFrame(windowTitle);
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mcWindow.start(mcappl, userName, sessionId, winSize, maximize);
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} catch (Exception e)
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{
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Utils.log("Applet wrapper failed:", "Error");
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e.printStackTrace(System.err);
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Utils.log();
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Utils.log("Falling back to compatibility mode.");
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try
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{
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mc.getMethod("main", String[].class).invoke(null, (Object) mcArgs);
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} catch (Exception e1)
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{
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Utils.log("Failed to invoke the Minecraft main class:", "Fatal");
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e1.printStackTrace(System.err);
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return -1;
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}
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}
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return 0;
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}
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int launchWithMainClass()
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{
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// window size, title and state, onesix
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if (maximize)
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{
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// FIXME: there is no good way to maximize the minecraft window in onesix.
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// the following often breaks linux screen setups
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// mcparams.add("--fullscreen");
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}
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else
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{
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mcparams.add("--width");
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mcparams.add(Integer.toString(winSize.width));
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mcparams.add("--height");
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mcparams.add(Integer.toString(winSize.height));
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}
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// Get the Minecraft Class.
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Class<?> mc;
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try
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{
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mc = cl.loadClass(mainClass);
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} catch (ClassNotFoundException e)
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{
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System.err.println("Failed to find Minecraft main class:");
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e.printStackTrace(System.err);
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return -1;
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}
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// get the main method.
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Method meth;
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try
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{
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meth = mc.getMethod("main", String[].class);
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} catch (NoSuchMethodException e)
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{
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System.err.println("Failed to acquire the main method:");
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e.printStackTrace(System.err);
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return -1;
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}
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/*
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final java.nio.ByteBuffer[] icons = IconLoader.load("icon.png");
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new Thread() {
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public void run() {
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ClassLoader cl = ClassLoader.getSystemClassLoader();
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try
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{
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Class<?> Display;
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Method isCreated;
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Method setTitle;
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Method setIcon;
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Field fieldWindowCreated;
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Boolean created = false;
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Display = cl.loadClass("org.lwjgl.opengl.Display");
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fieldWindowCreated = Display.getDeclaredField("window_created");
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fieldWindowCreated.setAccessible( true );
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setTitle = Display.getMethod("setTitle", String.class);
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setIcon = Display.getMethod("setIcon", java.nio.ByteBuffer[].class);
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created = (Boolean) fieldWindowCreated.get( null );
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// set the window title? Maybe?
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while(!created)
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{
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try
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{
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Thread.sleep(150);
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created = (Boolean) fieldWindowCreated.get( null );
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} catch (InterruptedException ignored) {}
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}
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// Give it a bit more time ;)
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Thread.sleep(150);
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// set the title
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setTitle.invoke(null,windowTitle);
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// only set icon when there's actually something to set...
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if(icons.length > 0)
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{
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setIcon.invoke(null,(Object)icons);
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}
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}
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catch (Exception e)
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{
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System.err.println("Couldn't set window icon or title.");
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e.printStackTrace(System.err);
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}
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}
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}
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.start();
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*/
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// init params for the main method to chomp on.
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String[] paramsArray = mcparams.toArray(new String[mcparams.size()]);
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try
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{
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// static method doesn't have an instance
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meth.invoke(null, (Object) paramsArray);
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} catch (Exception e)
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{
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System.err.println("Failed to start Minecraft:");
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e.printStackTrace(System.err);
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return -1;
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}
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return 0;
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}
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@Override
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public int launch(ParamBucket params)
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{
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// get and process the launch script params
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try
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{
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processParams(params);
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} catch (NotFoundException e)
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{
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System.err.println("Not enough arguments.");
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e.printStackTrace(System.err);
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return -1;
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}
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// add libraries to classpath
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if(!Utils.addToClassPath(libraries))
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{
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System.err.println("Halting launch due to previous errors.");
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return -1;
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}
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// set the native libs path... the brute force way
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try
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{
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System.setProperty("java.library.path", nativePath);
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System.setProperty("org.lwjgl.librarypath", nativePath);
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System.setProperty("net.java.games.input.librarypath", nativePath);
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// by the power of reflection, initialize native libs again. DIRTY!
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// this is SO BAD. imagine doing that to ld
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Field fieldSysPath = ClassLoader.class.getDeclaredField("sys_paths");
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fieldSysPath.setAccessible( true );
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fieldSysPath.set( null, null );
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}
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catch (Exception e)
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{
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System.err.println("Failed to set the native library path:");
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e.printStackTrace(System.err);
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System.err.println("Minecraft might fail to launch...");
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}
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// grab the system classloader and ...
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cl = ClassLoader.getSystemClassLoader();
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if (traits.contains("legacyLaunch") || traits.contains("alphaLaunch") )
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{
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// legacy launch uses the applet wrapper
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return legacyLaunch();
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}
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else
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{
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// normal launch just calls main()
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return launchWithMainClass();
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}
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}
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}
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