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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;
}
}
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