PrismLauncher/libraries/launcher/org/prismlauncher/impl/LegacyLauncher.java
TheKodeToad e68dcea6bc Various tweaks to the Java component of the launcher
Signed-off-by: TheKodeToad <TheKodeToad@proton.me>
2022-11-08 16:24:55 +00:00

105 lines
3.3 KiB
Java

/* Copyright 2012-2021 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.
*/
package org.prismlauncher.impl;
import java.applet.Applet;
import java.io.File;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.reflect.Field;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.prismlauncher.applet.LegacyFrame;
import org.prismlauncher.utils.Parameters;
import org.prismlauncher.utils.Utils;
@SuppressWarnings("removal")
public final class LegacyLauncher extends AbstractLauncher {
private static final Logger LOGGER = Logger.getLogger("LegacyLauncher");
private final String user, session;
private final String title;
private final String appletClass;
private final boolean noApplet;
private final String cwd;
public LegacyLauncher(Parameters params) {
super(params);
user = params.first("userName");
session = params.first("sessionId");
title = params.firstSafe("windowTitle", "Minecraft");
appletClass = params.firstSafe("appletClass", "net.minecraft.client.MinecraftApplet");
List<String> traits = params.allSafe("traits", Collections.<String>emptyList());
noApplet = traits.contains("noapplet");
cwd = System.getProperty("user.dir");
}
@Override
public void launch() throws Throwable {
Class<?> main = loadMain();
Field gameDirField = Utils.getMinecraftGameDirField(main);
if (gameDirField == null) {
LOGGER.warning("Could not find Mineraft path field.");
} else {
gameDirField.setAccessible(true);
gameDirField.set(null, new File(cwd));
}
if (!noApplet) {
LOGGER.info("Launching with applet wrapper...");
try {
Class<?> appletClass = classLoader.loadClass(this.appletClass);
MethodHandle constructor = MethodHandles.lookup().findConstructor(appletClass, MethodType.methodType(void.class));
Applet applet = (Applet) constructor.invoke();
LegacyFrame window = new LegacyFrame(title, applet);
window.start(
user,
session,
width,
height,
maximize,
serverAddress,
serverPort,
mcParams.contains("--demo")
);
return;
} catch (Throwable e) {
LOGGER.log(Level.SEVERE, "Applet wrapper failed:", e);
LOGGER.warning("Falling back to using main class.");
}
}
invokeMain(main);
}
}