Refactor changing window title

Closes #8

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.github/FUNDING.yml

@@ -0,0 +1 @@
+ko_fi: chylex

.gitignore

@@ -1 +1,30 @@
-Build/
+# gradle
+
+.gradle/
+build/
+out/
+classes/
+
+# eclipse
+
+*.launch
+
+# idea
+
+.idea/
+*.iml
+*.ipr
+*.iws
+
+# vscode
+
+.settings/
+.vscode/
+bin/
+.classpath
+.project
+
+# fabric
+
+run/
+logs/

.idea/encodings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" defaultCharsetForPropertiesFiles="UTF-8">
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/Fabric" />
+            <option value="$PROJECT_DIR$/NeoForge" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitSharedSettings">
+    <option name="FORCE_PUSH_PROHIBITED_PATTERNS">
+      <list />
+    </option>
+  </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

Fabric/build.gradle.kts

@@ -0,0 +1,67 @@
+import net.fabricmc.loom.configuration.ide.RunConfigSettings
+import org.gradle.jvm.tasks.Jar
+
+val modId: String by project
+val modSides: String by project
+val minecraftVersion: String by project
+val fabricVersion: String by project
+
+plugins {
+	id("fabric-loom")
+}
+
+dependencies {
+	minecraft("com.mojang:minecraft:$minecraftVersion")
+	modImplementation("net.fabricmc:fabric-loader:$fabricVersion")
+	mappings(loom.officialMojangMappings())
+}
+
+loom {
+	runs {
+		val runJvmArgs: Set<String> by project
+		
+		configureEach {
+			runDir("../run")
+			vmArgs(runJvmArgs)
+			ideConfigGenerated(true)
+		}
+		
+		fun side(name: String, configure: RunConfigSettings.() -> Unit) {
+			if (modSides == "both" || modSides == name) {
+				named(name, configure)
+			}
+			else {
+				findByName(name)?.let(::remove)
+			}
+		}
+		
+		side("client") {
+			configName = "Fabric Client"
+			client()
+		}
+		
+		side("server") {
+			configName = "Fabric Server"
+			server()
+		}
+	}
+	
+	mixin {
+		defaultRefmapName.set("$modId.refmap.json")
+	}
+}
+
+tasks.processResources {
+	filesMatching("fabric.mod.json") {
+		expand(inputs.properties)
+	}
+}
+
+tasks.register<Jar>("uncompressedRemapJar") {
+	group = "fabric"
+	
+	from(tasks.remapJar.map { it.outputs.files.map(::zipTree) })
+	
+	archiveClassifier.set("uncompressed")
+	entryCompression = ZipEntryCompression.STORED // Reduces size of multiloader jar.
+}

Fabric/src/main/java/chylex/customwindowtitle/fabric/CustomWindowTitle.java

@@ -0,0 +1,22 @@
+package chylex.customwindowtitle.fabric;
+
+import chylex.customwindowtitle.TitleChanger;
+import chylex.customwindowtitle.TitleConfig;
+import chylex.customwindowtitle.data.CommonTokenData;
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.loader.api.FabricLoader;
+import net.minecraft.client.Minecraft;
+
+public class CustomWindowTitle implements ClientModInitializer {
+	private final TitleConfig config;
+	
+	public CustomWindowTitle() {
+		config = TitleConfig.load(FabricLoader.getInstance().getConfigDir().toAbsolutePath().toString());
+	}
+	
+	@Override
+	public void onInitializeClient() {
+		CommonTokenData.register(new TokenProvider());
+		Minecraft.getInstance().execute(() -> TitleChanger.setTitle(config));
+	}
+}

Fabric/src/main/java/chylex/customwindowtitle/fabric/TokenProvider.java

@@ -0,0 +1,17 @@
+package chylex.customwindowtitle.fabric;
+
+import chylex.customwindowtitle.TokenException;
+import chylex.customwindowtitle.data.CommonTokenProvider;
+import net.fabricmc.loader.api.FabricLoader;
+
+final class TokenProvider implements CommonTokenProvider {
+	@Override
+	public String getModVersion(final String modId) {
+		return FabricLoader.getInstance()
+			.getModContainer(modId)
+			.orElseThrow(() -> new TokenException("mod info for '" + modId + "' not found"))
+			.getMetadata()
+			.getVersion()
+			.getFriendlyString();
+	}
+}

Fabric/src/main/resources/fabric.mod.json

@@ -0,0 +1,35 @@
+{
+  "schemaVersion": 1,
+  "id": "${id}",
+  "name": "${name}",
+  "description": "${description}",
+  "version": "${version}",
+  "license": "${license}",
+  
+  "authors": [
+    "${author}"
+  ],
+  
+  "contact": {
+    "homepage": "https://chylex.com",
+    "issues": "${issuesURL}",
+    "sources": "${sourcesURL}"
+  },
+  
+  "environment": "${sidesForFabric}",
+  "entrypoints": {
+    "client": [
+      "chylex.customwindowtitle.fabric.CustomWindowTitle"
+    ]
+  },
+  
+  "mixins": [{
+    "config": "${id}.mixins.json",
+    "environment": "${sidesForFabric}"
+  }],
+  
+  "depends": {
+    "fabricloader": ">=${minimumFabricVersion}",
+    "minecraft": ">=${minimumMinecraftVersion}"
+  }
+}

Forge/.gitignore

@@ -1,25 +0,0 @@
-# eclipse
-bin
-*.launch
-.settings
-.metadata
-.classpath
-.project
-
-# idea
-out
-*.ipr
-*.iws
-*.iml
-.idea
-
-# gradle
-build
-.gradle
-
-# other
-eclipse
-run
-
-# Files from Forge MDK
-forge*changelog.txt

Forge/build.gradle

@@ -1,39 +0,0 @@
-buildscript{
-    repositories{
-        maven{ url = 'https://files.minecraftforge.net/maven' }
-        jcenter()
-    }
-
-    dependencies{
-        classpath 'net.minecraftforge.gradle:ForgeGradle:2.3-SNAPSHOT'
-    }
-}
-
-apply plugin: 'net.minecraftforge.gradle.forge'
-
-def mcversion = "1.12.2"
-def forgeversion = "14.23.5.2847"
-
-def metaName = "Custom Window Title"
-def metaVersion = "1.0.0"
-
-group = 'chylex.customwindowtitle.forge'
-version = metaVersion
-archivesBaseName = metaName.replaceAll('\\s', '')
-
-sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8'
-
-minecraft{
-    version = mcversion + '-' + forgeversion
-    runDir = "run"
-    mappings = "snapshot_20180814"
-    makeObfSourceJar = false
-}
-
-jar{
-    archiveName = archivesBaseName + '-Legacy-v' + version + '.jar'
-
-    from('../'){
-        include 'LICENSE'
-    }
-}

Forge/gradle.properties

@@ -1,4 +0,0 @@
-# Sets default memory used for gradle commands. Can be overridden by user or command line properties.
-# This is required to provide enough memory for the Minecraft decompilation process.
-org.gradle.jvmargs=-Xmx3G
-org.gradle.daemon=false

Forge/gradlew

@@ -1,172 +0,0 @@
-#!/usr/bin/env sh
-
-##############################################################################
-##
-##  Gradle start up script for UN*X
-##
-##############################################################################
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn () {
-    echo "$*"
-}
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
-    else
-        JAVACMD="$JAVA_HOME/bin/java"
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD="java"
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=$((i+1))
-    done
-    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
-    esac
-fi
-
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=$(save "$@")
-
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
-
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
-exec "$JAVACMD" "$@"

Forge/src/main/java/chylex/customwindowtitle/TokenException.java

@@ -1,7 +0,0 @@
-package chylex.customwindowtitle;
-
-public class TokenException extends RuntimeException{
-	public TokenException(String message){
-		super(message);
-	}
-}

Forge/src/main/java/chylex/customwindowtitle/forge/CustomWindowTitle.java

@@ -1,51 +0,0 @@
-package chylex.customwindowtitle.forge;
-import chylex.customwindowtitle.TitleParser;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.Mod.EventHandler;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
-import org.apache.commons.lang3.StringUtils;
-import org.lwjgl.opengl.Display;
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.Collections;
-
-@Mod(modid = "customwindowtitle", useMetadata = true, clientSideOnly = true, acceptedMinecraftVersions = "*", acceptableRemoteVersions = "*")
-public class CustomWindowTitle{
-	private static final String defaultTitle = "Minecraft {mcversion}";
-	private String configTitle;
-	
-	@EventHandler
-	public void onPreInit(FMLPreInitializationEvent e){
-		Path configFile = Paths.get(e.getModConfigurationDirectory().getAbsolutePath(), "customwindowtitle-client.toml");
-		
-		try{
-			String prefix = "title = ";
-			
-			if (!Files.exists(configFile)){
-				Files.write(configFile, Collections.singletonList(prefix + '"' + defaultTitle + '"'), StandardCharsets.UTF_8);
-				configTitle = defaultTitle;
-			}
-			else{
-				configTitle = Files
-					.readAllLines(configFile, StandardCharsets.UTF_8)
-					.stream()
-					.filter(line -> line.startsWith(prefix))
-					.map(line -> StringUtils.strip(StringUtils.removeStart(line, prefix).trim(), "\""))
-					.findFirst()
-					.orElse(defaultTitle);
-			}
-		}catch(IOException ex){
-			throw new RuntimeException("CustomWindowTitle configuration error", ex);
-		}
-		
-		TokenData.register();
-		updateTitle();
-	}
-	
-	private void updateTitle(){
-		Display.setTitle(TitleParser.parse(configTitle));
-	}
-}

Forge/src/main/java/chylex/customwindowtitle/forge/TokenData.java

@@ -1,29 +0,0 @@
-package chylex.customwindowtitle.forge;
-import chylex.customwindowtitle.TokenException;
-import net.minecraft.realms.RealmsSharedConstants;
-import net.minecraftforge.fml.common.Loader;
-import net.minecraftforge.fml.common.ModContainer;
-import static chylex.customwindowtitle.TitleTokens.noArgs;
-import static chylex.customwindowtitle.TitleTokens.oneArg;
-import static chylex.customwindowtitle.TitleTokens.registerToken;
-
-final class TokenData{
-	static void register(){
-		registerToken("mcversion", noArgs(TokenData::getMinecraftVersion));
-		registerToken("modversion", oneArg(TokenData::getModVersion));
-	}
-	
-	static String getMinecraftVersion(){
-		return RealmsSharedConstants.VERSION_STRING;
-	}
-	
-	static String getModVersion(String modId){
-		ModContainer mod = Loader.instance().getIndexedModList().get(modId);
-		
-		if (mod == null){
-			throw new TokenException("mod info for '" + modId + "' not found");
-		}
-		
-		return mod.getMetadata().version;
-	}
-}

Forge/src/main/resources/mcmod.info

@@ -1,10 +0,0 @@
-[
-{
-  "modid": "customwindowtitle",
-  "name": "Custom Window Title",
-  "description": "",
-  "version": "1.0.0",
-  "url": "https://github.com/chylex/Minecraft-Window-Title",
-  "authorList": ["chylex"]
-}
-]

Forge/src/main/resources/pack.mcmeta

@@ -1,7 +0,0 @@
-{
-    "pack": {
-        "description": "Custom Window Title",
-        "pack_format": 3,
-        "_comment": ""
-    }
-}

NeoForge/build.gradle.kts

@@ -0,0 +1,51 @@
+import net.neoforged.moddevgradle.dsl.RunModel
+
+val modId: String by project
+val modSides: String by project
+val neoForgeVersion: String by project
+
+plugins {
+	id("net.neoforged.moddev")
+}
+
+neoForge {
+	version = neoForgeVersion
+	
+	mods {
+		register(modId) {
+			sourceSet(sourceSets.main.get())
+			sourceSet(rootProject.sourceSets.main.get())
+		}
+	}
+	
+	runs {
+		val runJvmArgs: Set<String> by project
+		
+		configureEach {
+			gameDirectory = file("../run")
+			jvmArguments.addAll(runJvmArgs)
+		}
+		
+		fun side(name: String, configure: RunModel.() -> Unit) {
+			if (modSides == "both" || modSides == name) {
+				register(name, configure)
+			}
+		}
+		
+		side("client") {
+			ideName.set("NeoForge Client")
+			client()
+		}
+		
+		side("server") {
+			ideName.set("NeoForge Server")
+			server()
+		}
+	}
+}
+
+tasks.processResources {
+	filesMatching("META-INF/neoforge.mods.toml") {
+		expand(inputs.properties)
+	}
+}

NeoForge/src/main/java/chylex/customwindowtitle/neoforge/CustomWindowTitle.java

@@ -0,0 +1,27 @@
+package chylex.customwindowtitle.neoforge;
+
+import chylex.customwindowtitle.TitleChanger;
+import chylex.customwindowtitle.TitleConfig;
+import chylex.customwindowtitle.data.CommonTokenData;
+import net.neoforged.bus.api.IEventBus;
+import net.neoforged.bus.api.SubscribeEvent;
+import net.neoforged.fml.common.Mod;
+import net.neoforged.fml.event.lifecycle.FMLClientSetupEvent;
+import net.neoforged.fml.loading.FMLPaths;
+
+@Mod("customwindowtitle")
+public class CustomWindowTitle {
+	
+	private final TitleConfig config;
+	
+	public CustomWindowTitle(IEventBus eventBus) {
+		config = TitleConfig.load(FMLPaths.CONFIGDIR.get().toString());
+		eventBus.addListener(this::onClientSetup);
+	}
+	
+	@SubscribeEvent
+	public void onClientSetup(final FMLClientSetupEvent e) {
+		CommonTokenData.register(new TokenProvider());
+		e.enqueueWork(() -> TitleChanger.setTitle(config));
+	}
+}

NeoForge/src/main/java/chylex/customwindowtitle/neoforge/TokenProvider.java

@@ -0,0 +1,26 @@
+package chylex.customwindowtitle.neoforge;
+
+import chylex.customwindowtitle.TokenException;
+import chylex.customwindowtitle.data.CommonTokenProvider;
+import net.neoforged.fml.ModList;
+import net.neoforged.neoforgespi.language.IModFileInfo;
+import net.neoforged.neoforgespi.language.IModInfo;
+
+final class TokenProvider implements CommonTokenProvider {
+	@Override
+	public String getModVersion(final String modId) {
+		final IModFileInfo file = ModList.get().getModFileById(modId);
+		
+		if (file == null) {
+			throw new TokenException("mod file for '" + modId + "' not found");
+		}
+		
+		for (final IModInfo info : file.getMods()) {
+			if (info.getModId().equals(modId)) {
+				return info.getVersion().toString();
+			}
+		}
+		
+		throw new TokenException("mod info for '" + modId + "' not found");
+	}
+}

NeoForge/src/main/resources/META-INF/neoforge.mods.toml

@@ -0,0 +1,30 @@
+modLoader = "javafml"
+loaderVersion = "[0,)"
+
+license = "${license}"
+issueTrackerURL = "${issuesURL}"
+
+[[mods]]
+modId = "${id}"
+displayName = "${name}"
+displayURL = "${sourcesURL}"
+description = "${description}"
+authors = "${author}"
+version = "${version}"
+
+[[mixins]]
+config = "${id}.mixins.json"
+
+[[dependencies.${id}]]
+modId = "minecraft"
+type = "required"
+versionRange = "[${minimumMinecraftVersion},)"
+ordering = "NONE"
+side = "${sidesForNeoForge}"
+
+[[dependencies.${id}]]
+modId = "neoforge"
+type = "required"
+versionRange = "[${minimumNeoForgeVersion},)"
+ordering = "NONE"
+side = "${sidesForNeoForge}"

README.md

@@ -2,27 +2,59 @@
 
 ## Installation
 
-The mod supports [Forge](https://files.minecraftforge.net/) and [Fabric](https://fabricmc.net/) (*) mod loaders, **the same mod file will work in both**. Follow either mod loader's installation guide, then [download the mod file](https://www.curseforge.com/minecraft/mc-mods/custom-window-title/files) for your Minecraft version, and install it into the **.minecraft/mods** folder.
+The mod supports [NeoForge](https://neoforged.net/) and [Fabric](https://fabricmc.net/) (*) mod loaders. Follow either mod loader's installation guide, then download the mod file for your Minecraft version from [CurseForge](https://www.curseforge.com/minecraft/mc-mods/custom-window-title/files) or [Modrinth](https://modrinth.com/mod/custom-window-title/versions), and install it into the `.minecraft/mods` folder.
 
-(*) Fabric API is not required.
+(*) Fabric API is **not** required.
 
 ## Configuration
 
 Run the game once to create the configuration file. By default, the window title will be set to **Minecraft _<version>_**. Unlike in vanilla 1.15.2 onwards, the title will not change when you enter a world/server.
 
-To change the title, navigate to the **.minecraft/config** folder, and open **customwindowtitle-client.toml** in a text editor. You will see the following line:
+To change the title or icon, navigate to the `.minecraft/config` folder, and open `customwindowtitle-client.toml` in a text editor. You will see the following entries:
 
 ```toml
-title = "Minecraft {mcversion}"
+title = 'Minecraft {mcversion}'  
+icon = ''  
 ```
 
-Change only text inside the quotes. You can use the following special tokens:
+Only edit text inside quotes or apostrophes.
 
-* **{mcversion}** - current Minecraft version
+### Changing the Title
-* **{modversion:<span style="text-decoration: underline;">modid</span>}** - version of installed mod with the identifier _modid_
+
+You can use the following special tokens in the _title_ configuration entry:
+
+* `{mcversion}` - current Minecraft version
+* `{modversion:<mod_id>}` - version of installed mod with the identifier `<mod_id>`
+* `{username}` - current username
 
 If any of the tokens aren't working, search the game log for **CustomWindowTitle** and you should see the reason, otherwise please file an issue on the [issue tracker](https://github.com/chylex/Minecraft-Window-Title/issues) with as many details as possible.
 
+### Changing the Icon
+
+#### Minecraft 1.21+
+
+**This feature is only available in Custom Window Title 1.4.0 and newer.**
+
+Create a square PNG image whose dimensions are a power of two, such as 32x32 or 48x48. Put the PNG file into the `.minecraft/config` folder, either directly or into a subfolder.
+
+The icon **must be saved with transparency** even if it doesn't use it, otherwise the icon may be corrupted or not appear at all. In Krita, for example, you must check _Store alpha channel (transparency)_ when saving.
+
+The _icon_ configuration entry points to the PNG file relative to `.minecraft/config`.
+
+For example, if you placed the icon into `.minecraft/config/customwindowtitle/icon.png`, then the configuration entry should look like this:
+
+```toml
+icon = 'customwindowtitle/icon.png'
+```
+
+#### Minecraft 1.20
+
+This feature is not available in Minecraft 1.20.
+
+#### Minecraft 1.19 and older
+
+Instead of one `icon` configuration entry, there are two configuration entries `icon16` and `icon32` for icons with dimensions 16x16 and 32x32.
+
 ## Screenshots
 
 These screenshots were taken using the following example configuration:
@@ -31,10 +63,15 @@ These screenshots were taken using the following example configuration:
 title = "Minecraft {mcversion} - Custom Window Title {modversion:customwindowtitle}"
 ```
 
-![](https://media.forgecdn.net/attachments/277/212/customwindowtitlefabric.png)![](https://media.forgecdn.net/attachments/277/213/customwindowtitleforge.png)
+![](https://github.com/chylex/Minecraft-Window-Title/blob/master/.github/README/screenshot.png)
 
 # For Developers
 
-Currently the common source files (package `chylex.customwindowtitle`) are just duplicated in the Forge and Fabric folders, and the jar files are combined with a horrible python script. If anyone has the time and patience to clean it up, I'd appreciate a Pull Request :P
+The mod sources are organized into 3 projects:
+- `src/` contains common source files and mixins
+- `Fabric/src/` contains source files specific for Fabric
+- `NeoForge/src/` contains source files specific for NeoForge
 
-For now, you can build either separate Forge and Fabric projects using `gradlew build` in either folder, or run `python BuildMerge.py` to automatically build both and combine them into a single `.jar` file.
+The `assemble` Gradle task creates a single `.jar` file for both mod loaders in the `build/dist` folder.
+
+When building against a Minecraft version that is only supported by one mod loader, open `gradle.properties` and comment or remove either `neoForgeVersion` or `fabricVersion` to disable them.

build.gradle.kts

@@ -0,0 +1,214 @@
+@file:Suppress("ConvertLambdaToReference")
+
+import org.gradle.jvm.tasks.Jar
+
+val modId: String by project
+val modName: String by project
+val modDescription: String by project
+val modAuthor: String by project
+val modVersion: String by project
+val modLicense: String by project
+val modSourcesURL: String by project
+val modIssuesURL: String by project
+val modSides: String by project
+
+val minecraftVersion: String by project
+val mixinVersion: String by project
+
+val minimumMinecraftVersion: String by project
+val minimumNeoForgeVersion: String by project
+val minimumFabricVersion: String by project
+
+val modNameStripped = modName.replace(" ", "")
+
+plugins {
+	idea
+	`java-library`
+	id("fabric-loom")
+}
+
+idea {
+	module {
+		excludeDirs.add(file("gradle"))
+		excludeDirs.add(file("run"))
+		
+		if (findProject(":NeoForge") == null) {
+			excludeDirs.add(file("NeoForge"))
+		}
+		
+		if (findProject(":Fabric") == null) {
+			excludeDirs.add(file("Fabric"))
+		}
+	}
+}
+
+repositories {
+	mavenCentral()
+}
+
+base {
+	archivesName.set("$modNameStripped-Common")
+}
+
+loom {
+	runs {
+		named("client") {
+			ideConfigGenerated(false)
+		}
+		
+		findByName("server")?.let(::remove)
+	}
+}
+
+dependencies {
+	minecraft("com.mojang:minecraft:$minecraftVersion")
+	mappings(loom.officialMojangMappings())
+	
+	compileOnly("net.fabricmc:sponge-mixin:$mixinVersion")
+	api("com.google.code.findbugs:jsr305:3.0.2")
+}
+
+allprojects {
+	group = "com.$modAuthor.$modId"
+	version = modVersion
+	
+	apply(plugin = "java-library")
+	
+	extensions.getByType<JavaPluginExtension>().apply {
+		toolchain.languageVersion.set(JavaLanguageVersion.of(21))
+	}
+	
+	tasks.withType<JavaCompile> {
+		options.encoding = "UTF-8"
+		options.release.set(21)
+	}
+	
+	val runJvmArgs = mutableSetOf<String>().also {
+		extra["runJvmArgs"] = it
+	}
+	
+	if (project.javaToolchains.launcherFor(java.toolchain).map { it.metadata.vendor }.orNull == "JetBrains") {
+		runJvmArgs.add("-XX:+AllowEnhancedClassRedefinition")
+	}
+	
+	dependencies {
+		implementation("org.jetbrains:annotations:24.1.0")
+	}
+	
+	tasks.withType<ProcessResources> {
+		val (sidesForNeoForge, sidesForFabric) = when (modSides) {
+			"both"   -> Pair("BOTH", "*")
+			"client" -> Pair("CLIENT", "client")
+			"server" -> Pair("SERVER", "server")
+			else     -> error("Invalid modSides value: $modSides")
+		}
+		
+		inputs.property("id", modId)
+		inputs.property("name", modName)
+		inputs.property("description", modDescription)
+		inputs.property("version", modVersion)
+		inputs.property("author", modAuthor)
+		inputs.property("license", modLicense)
+		inputs.property("sourcesURL", modSourcesURL)
+		inputs.property("issuesURL", modIssuesURL)
+		inputs.property("sidesForNeoForge", sidesForNeoForge)
+		inputs.property("sidesForFabric", sidesForFabric)
+		inputs.property("minimumMinecraftVersion", minimumMinecraftVersion)
+		inputs.property("minimumNeoForgeVersion", minimumNeoForgeVersion)
+		inputs.property("minimumFabricVersion", minimumFabricVersion)
+		
+		from(rootProject.file("logo.png")) {
+			into("assets/$modId")
+		}
+	}
+	
+	tasks.withType<AbstractArchiveTask>().configureEach {
+		isPreserveFileTimestamps = false
+		isReproducibleFileOrder = true
+	}
+}
+
+subprojects {
+	dependencies {
+		implementation(project(rootProject.path, configuration = "namedElements"))
+	}
+	
+	base {
+		archivesName.set("$modNameStripped-${project.name}")
+	}
+	
+	tasks.compileJava {
+		source({ rootProject.sourceSets.main.get().allSource })
+	}
+	
+	tasks.processResources {
+		from(rootProject.sourceSets.main.get().resources) {
+			expand(inputs.properties)
+		}
+	}
+	
+	tasks.jar {
+		entryCompression = ZipEntryCompression.STORED // Reduces size of multiloader jar.
+		
+		manifest {
+			packageInformation(modId, "$modNameStripped-${project.name}")
+		}
+	}
+	
+	tasks.test {
+		onlyIf { false }
+	}
+}
+
+fun Manifest.packageInformation(specificationTitle: String, implementationTitle: String) {
+	attributes(
+		"Specification-Title" to specificationTitle,
+		"Specification-Vendor" to modAuthor,
+		"Specification-Version" to "1",
+		"Implementation-Title" to implementationTitle,
+		"Implementation-Vendor" to modAuthor,
+		"Implementation-Version" to modVersion,
+	)
+}
+
+val multiloaderSources = sourceSets.register("multiloader")
+
+val multiloaderJar = tasks.register<Jar>("multiloaderJar") {
+	group = "build"
+	
+	archiveBaseName.set(modNameStripped)
+	archiveVersion.set("$minecraftVersion+v$modVersion")
+	
+	destinationDirectory = layout.buildDirectory.dir("dist")
+	
+	fun includeJar(project: Project, jarTaskName: String) {
+		from(project.tasks.named(jarTaskName).map { it.outputs }) {
+			into("jars")
+			rename { "$modNameStripped-${project.name}.jar" }
+		}
+	}
+	
+	findProject(":NeoForge")?.let { includeJar(it, "jar") }
+	findProject(":Fabric")?.let { includeJar(it, "uncompressedRemapJar") }
+	
+	from(rootProject.file("LICENSE"))
+	from(multiloaderSources.map { it.output })
+	
+	manifest {
+		packageInformation("$modId-multiloader", modNameStripped)
+		attributes("FMLModType" to "GAMELIBRARY")
+	}
+}
+
+tasks.named<ProcessResources>("processMultiloaderResources").configure {
+	inputs.property("group", project.group)
+	inputs.property("jarPrefix", modNameStripped)
+	
+	filesMatching(listOf("fabric.mod.json", "META-INF/jarjar/metadata.json")) {
+		expand(inputs.properties)
+	}
+}
+
+tasks.assemble {
+	finalizedBy(multiloaderJar)
+}

docs/CURSEFORGE.md

@@ -0,0 +1,65 @@
+## Installation
+
+The mod supports [NeoForge](https://neoforged.net/) and [Fabric](https://fabricmc.net/) (*) mod loaders. Follow either mod loader's installation guide, then [download the mod file](https://www.curseforge.com/minecraft/mc-mods/custom-window-title/files) for your Minecraft version, and install it into the `.minecraft/mods` folder.
+
+(*) Fabric API is **not** required.
+
+## Configuration
+
+Run the game once to create the configuration file. By default, the window title will be set to **Minecraft _<version>_**. Unlike in vanilla 1.15.2 onwards, the title will not change when you enter a world/server.
+
+To change the title or icon, navigate to the `.minecraft/config` folder, and open `customwindowtitle-client.toml` in a text editor. You will see the following entries:
+
+```toml
+title = 'Minecraft {mcversion}'  
+icon16 = ''  
+icon32 = ''
+```
+
+Only edit text inside quotes or apostrophes.
+
+### Changing the Title
+
+You can use the following special tokens in the _title_ configuration entry:
+
+* `{mcversion}` - current Minecraft version
+* `{modversion:mod_id}` - version of installed mod with the identifier `mod_id`
+* `{username}` - current username
+
+If any of the tokens aren't working, search the game log for **CustomWindowTitle** and you should see the reason, otherwise please file an issue on the [issue tracker](https://github.com/chylex/Minecraft-Window-Title/issues) with as many details as possible.
+
+### Changing the Icon
+
+#### Minecraft 1.21+
+
+**This feature is only available in Custom Window Title 1.4.0 and newer.**
+
+Create a square PNG image whose dimensions are a power of two, such as 32x32 or 48x48. Put the PNG file into the `.minecraft/config` folder, either directly or into a subfolder.
+
+The icon **must be saved with transparency** even if it doesn't use it, otherwise the icon may be corrupted or not appear at all. In Krita, for example, you must check _Store alpha channel (transparency)_ when saving.
+
+The _icon_ configuration entry points to the PNG file relative to `.minecraft/config`.
+
+For example, if you placed the icon into `.minecraft/config/customwindowtitle/icon.png`, then the configuration entry should look like this:
+
+```toml
+icon = 'customwindowtitle/icon.png'
+```
+
+#### Minecraft 1.20
+
+This feature is not available in Minecraft 1.20.
+
+#### Minecraft 1.19 and older
+
+Instead of one `icon` configuration entry, there are two configuration entries `icon16` and `icon32` for icons with dimensions 16x16 and 32x32.
+
+## Screenshots
+
+These screenshots were taken using the following example configuration:
+
+```toml
+title = "Minecraft {mcversion} - Custom Window Title {modversion:customwindowtitle}"
+```
+
+<img src="https://media.forgecdn.net/attachments/277/212/customwindowtitlefabric.png" width="417" height="284"><img src="https://media.forgecdn.net/attachments/277/213/customwindowtitleforge.png" alt="" width="417" height="284">

docs/MODRINTH.md

@@ -0,0 +1,66 @@
+## Installation
+
+The mod supports [NeoForge](https://neoforged.net/) and [Fabric](https://fabricmc.net/) (*) mod loaders. Follow either mod loader's installation guide, then [download the mod file](https://modrinth.com/mod/custom-window-title/versions) for your Minecraft version, and install it into the `.minecraft/mods` folder.
+
+(*) Fabric API is **not** required.
+
+## Configuration
+
+Run the game once to create the configuration file. By default, the window title will be set to **Minecraft _<version>_**. Unlike in vanilla 1.15.2 onwards, the title will not change when you enter a world/server.
+
+To change the title or icon, navigate to the `.minecraft/config` folder, and open `customwindowtitle-client.toml` in a text editor. You will see the following entries:
+
+```toml
+title = 'Minecraft {mcversion}'  
+icon16 = ''  
+icon32 = ''
+```
+
+Only edit text inside quotes or apostrophes.
+
+### Changing the Title
+
+You can use the following special tokens in the _title_ configuration entry:
+
+* `{mcversion}` - current Minecraft version
+* `{modversion:<mod_id>}` - version of installed mod with the identifier `<mod_id>`
+* `{username}` - current username
+
+If any of the tokens aren't working, search the game log for **CustomWindowTitle** and you should see the reason, otherwise please file an issue on the [issue tracker](https://github.com/chylex/Minecraft-Window-Title/issues) with as many details as possible.
+
+### Changing the Icon
+
+#### Minecraft 1.21+
+
+**This feature is only available in Custom Window Title 1.4.0 and newer.**
+
+Create a square PNG image whose dimensions are a power of two, such as 32x32 or 48x48. Put the PNG file into the `.minecraft/config` folder, either directly or into a subfolder.
+
+The icon **must be saved with transparency** even if it doesn't use it, otherwise the icon may be corrupted or not appear at all. In Krita, for example, you must check _Store alpha channel (transparency)_ when saving.
+
+The _icon_ configuration entry points to the PNG file relative to `.minecraft/config`.
+
+For example, if you placed the icon into `.minecraft/config/customwindowtitle/icon.png`, then the configuration entry should look like this:
+
+```toml
+icon = 'customwindowtitle/icon.png'
+```
+
+#### Minecraft 1.20
+
+This feature is not available in Minecraft 1.20.
+
+#### Minecraft 1.19 and older
+
+Instead of one `icon` configuration entry, there are two configuration entries `icon16` and `icon32` for icons with dimensions 16x16 and 32x32.
+
+## Screenshots
+
+These screenshots were taken using the following example configuration:
+
+```toml
+title = "Minecraft {mcversion} - Custom Window Title {modversion:customwindowtitle}"
+```
+
+![Screenshot 1](https://cdn.modrinth.com/data/RGH5gtzF/images/583e2cde5254f758f890abe5d018f46201dd856e.png)
+![Screenshot 2](https://cdn.modrinth.com/data/RGH5gtzF/images/68b89c57f5505625c2cff00fd5fe7489571dcae3.png)

gradle.properties

@@ -0,0 +1,32 @@
+# Mod
+modId=customwindowtitle
+modName=Custom Window Title
+modDescription=Customize window title and icon.
+modAuthor=chylex
+modVersion=1.4.0
+modLicense=Unlicense
+modSourcesURL=https://github.com/chylex/Minecraft-Window-Title
+modIssuesURL=https://github.com/chylex/Minecraft-Window-Title/issues
+modSides=client
+
+# Dependencies
+minecraftVersion=1.21.4
+neoForgeVersion=21.4.77-beta
+neoModDevVersion=2.0.76
+fabricVersion=0.16.10
+loomVersion=1.9
+mixinVersion=0.12.5+mixin.0.8.5
+
+# https://projects.neoforged.net/neoforged/neoforge
+# https://projects.neoforged.net/neoforged/moddevgradle
+# https://fabricmc.net/develop/
+# https://github.com/FabricMC/fabric-loom/releases
+
+# Constraints
+minimumMinecraftVersion=1.21
+minimumNeoForgeVersion=21.0.0-beta
+minimumFabricVersion=0.12.3
+
+# Gradle
+org.gradle.jvmargs=-Xmx3G
+org.gradle.daemon=false

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip

gradlew

@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# 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
+#
+#      https://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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -1,4 +1,22 @@
-@if "%DEBUG%" == "" @echo off
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -9,25 +27,29 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if %ERRORLEVEL% equ 0 goto execute
 
-echo.
+echo. 1>&2
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
-echo.
+echo. 1>&2
-echo Please set the JAVA_HOME variable in your environment to match the
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
-echo location of your Java installation.
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -35,48 +57,36 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
-echo.
+echo. 1>&2
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
-echo.
+echo. 1>&2
-echo Please set the JAVA_HOME variable in your environment to match the
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
-echo location of your Java installation.
+echo location of your Java installation. 1>&2
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+set EXIT_CODE=%ERRORLEVEL%
-exit /b 1
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

settings.gradle.kts

@@ -0,0 +1,29 @@
+rootProject.name = "Minecraft-Window-Title"
+
+pluginManagement {
+	repositories {
+		gradlePluginPortal()
+		maven(url = "https://maven.neoforged.net/releases") { name = "NeoForge" }
+		maven(url = "https://maven.fabricmc.net/") { name = "Fabric" }
+	}
+	
+	plugins {
+		val neoModDevVersion = settings.extra.get("neoModDevVersion") as? String
+		if (neoModDevVersion != null) {
+			id("net.neoforged.moddev") version neoModDevVersion
+		}
+		
+		val loomVersion = settings.extra.get("loomVersion") as? String
+		if (loomVersion != null) {
+			id("fabric-loom") version "$loomVersion-SNAPSHOT"
+		}
+	}
+}
+
+if (settings.extra.has("neoForgeVersion")) {
+	include("NeoForge")
+}
+
+if (settings.extra.has("fabricVersion")) {
+	include("Fabric")
+}

src/main/java/chylex/customwindowtitle/IconChanger.java

@@ -0,0 +1,60 @@
+package chylex.customwindowtitle;
+
+import net.minecraft.client.Minecraft;
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.glfw.GLFWImage;
+import org.lwjgl.stb.STBImage;
+import org.lwjgl.system.MemoryStack;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.IntBuffer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public final class IconChanger {
+	private IconChanger() {}
+	
+	public static void setIcon(Path iconPath) {
+		long windowHandle = Minecraft.getInstance().getWindow().getWindow();
+		setWindowIcon(windowHandle, iconPath);
+	}
+	
+	private static void setWindowIcon(long windowHandle, Path iconPath) {
+		try (MemoryStack stack = MemoryStack.stackPush()) {
+			IntBuffer w = stack.mallocInt(1);
+			IntBuffer h = stack.mallocInt(1);
+			IntBuffer channels = stack.mallocInt(1);
+			
+			ByteBuffer icon = loadIcon(iconPath, w, h, channels);
+			if (icon == null) {
+				return;
+			}
+			
+			try (GLFWImage glfwImage1 = GLFWImage.malloc(); GLFWImage glfwImage2 = GLFWImage.malloc(); GLFWImage.Buffer icons = GLFWImage.malloc(2)) {
+				glfwImage1.set(w.get(0), h.get(0), icon);
+				glfwImage2.set(w.get(0), h.get(0), icon);
+				
+				icons.put(0, glfwImage1);
+				icons.put(1, glfwImage2);
+				
+				GLFW.glfwSetWindowIcon(windowHandle, icons);
+			}
+		} catch (Exception e) {
+			System.err.println("Failed to set window icon: " + iconPath);
+			e.printStackTrace();
+		}
+	}
+	
+	private static ByteBuffer loadIcon(Path path, IntBuffer w, IntBuffer h, IntBuffer channels) throws IOException {
+		byte[] iconBytes = Files.readAllBytes(path);
+		
+		ByteBuffer buffer = ByteBuffer.allocateDirect(iconBytes.length).put(iconBytes).flip();
+		ByteBuffer icon = STBImage.stbi_load_from_memory(buffer, w, h, channels, 4);
+		
+		if (icon == null) {
+			System.err.println("Failed to load image from memory for: " + path + " - " + STBImage.stbi_failure_reason());
+		}
+		
+		return icon;
+	}
+}

src/main/java/chylex/customwindowtitle/TitleChanger.java

@@ -0,0 +1,11 @@
+package chylex.customwindowtitle;
+
+import net.minecraft.client.Minecraft;
+
+public final class TitleChanger {
+	private TitleChanger() {}
+	
+	public static void setTitle(TitleConfig config) {
+		Minecraft.getInstance().getWindow().setTitle(TitleParser.parse(config.getTitle()));
+	}
+}

src/main/java/chylex/customwindowtitle/TitleConfig.java

@@ -0,0 +1,127 @@
+package chylex.customwindowtitle;
+
+import com.google.common.collect.ImmutableMap;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public final class TitleConfig {
+	private static final String KEY_TITLE = "title";
+	private static final String KEY_ICON = "icon";
+	
+	private static final ImmutableMap<String, String> DEFAULTS = ImmutableMap.<String, String>builder()
+		.put(KEY_TITLE, "Minecraft {mcversion}")
+		.put(KEY_ICON, "")
+		.buildOrThrow();
+	
+	private static volatile TitleConfig instance;
+	
+	public static TitleConfig getInstance() {
+		return instance;
+	}
+	
+	public static TitleConfig load(String folder) {
+		if (instance != null) {
+			throw new IllegalStateException("TitleConfig has already been loaded and cannot be loaded again.");
+		}
+		
+		if (instance == null) {
+			synchronized(TitleConfig.class) {
+				if (instance == null) {
+					instance = loadImpl(folder);
+				}
+			}
+		}
+		
+		return instance;
+	}
+	
+	private static TitleConfig loadImpl(String folder) {
+		Path configFile = Paths.get(folder, "customwindowtitle-client.toml");
+		Map<String, String> config = new LinkedHashMap<>(DEFAULTS);
+		
+		try {
+			if (!Files.exists(configFile)) {
+				Files.write(configFile, config.entrySet().stream()
+					.map(entry -> String.format("%s = '%s'", entry.getKey(), entry.getValue()))
+					.collect(Collectors.toList()), StandardCharsets.UTF_8);
+			}
+			else {
+				Files.readAllLines(configFile, StandardCharsets.UTF_8).stream()
+					.map(String::trim)
+					.filter(line -> !line.isEmpty())
+					.forEach(line -> {
+						String[] split = line.split("=", 2);
+						
+						if (split.length != 2) {
+							throw new RuntimeException("CustomWindowTitle configuration has an invalid line: " + line);
+						}
+						
+						String key = split[0].trim();
+						String value = parseTrimmedValue(split[1].trim());
+						
+						if (config.containsKey(key)) {
+							config.put(key, value);
+						}
+						else {
+							throw new RuntimeException("CustomWindowTitle configuration has an invalid key: " + key);
+						}
+					});
+			}
+		} catch (IOException e) {
+			throw new RuntimeException("CustomWindowTitle configuration error", e);
+		}
+		
+		String iconPathStr = config.get(KEY_ICON);
+		Path iconPath = iconPathStr.isEmpty() ? null : Paths.get(folder, iconPathStr);
+		if (iconPath != null && Files.notExists(iconPath)) {
+			throw new RuntimeException("CustomWindowTitle configuration points to a missing icon: " + iconPath);
+		}
+		
+		return new TitleConfig(config.get(KEY_TITLE), iconPath);
+	}
+	
+	private static String parseTrimmedValue(String value) {
+		if (value.isEmpty()) {
+			return value;
+		}
+		
+		final char surrounding = value.charAt(0);
+		final int length = value.length();
+		
+		if (value.charAt(length - 1) == surrounding) {
+			value = value.substring(1, length - 1);
+			
+			if (surrounding == '"') {
+				value = value.replace("\\\"", "\"").replace("\\\\", "\\");
+			}
+		}
+		
+		return value;
+	}
+	
+	private final String title;
+	private final Path icon;
+	
+	private TitleConfig(final String title, final Path icon) {
+		this.title = title;
+		this.icon = icon;
+	}
+	
+	public String getTitle() {
+		return title;
+	}
+	
+	public boolean hasIcon() {
+		return icon != null;
+	}
+	
+	public Path getIconPath() {
+		return icon;
+	}
+}

src/main/java/chylex/customwindowtitle/TitleParser.java

@@ -1,4 +1,5 @@
 package chylex.customwindowtitle;
+
 import org.apache.commons.lang3.ArrayUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.LogManager;
@@ -6,32 +7,32 @@ import org.apache.logging.log4j.Logger;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-public final class TitleParser{
+final class TitleParser {
 	private static final Pattern tokenRegex = Pattern.compile("\\{([a-z]+)(?::([^}]+))?}");
 	private static final Logger logger = LogManager.getLogger("CustomWindowTitle");
 	
-	public static String parse(String input){
+	public static String parse(final String input) {
-		StringBuffer buffer = new StringBuffer();
+		final StringBuilder buffer = new StringBuilder();
-		Matcher matcher = tokenRegex.matcher(input);
+		final Matcher matcher = tokenRegex.matcher(input);
 		
-		while(matcher.find()){
+		while (matcher.find()) {
-			String token = matcher.group(1);
+			final String token = matcher.group(1);
-			String[] args = StringUtils.split(matcher.group(2), ',');
+			final String[] args = StringUtils.split(matcher.group(2), ',');
 			
 			String result = null;
 			
-			try{
+			try {
 				result = TitleTokens.getTokenFunction(token).apply(args == null ? ArrayUtils.EMPTY_STRING_ARRAY : args);
-			}catch(TokenException e){
+			} catch (final TokenException e) {
 				logger.warn("Error processing token '" + token + "': " + e.getMessage());
-			}catch(Throwable t){
+			} catch (final Throwable t) {
 				logger.warn("Error processing token '" + token + "': " + t.getMessage(), t);
 			}
 			
-			if (result == null){
+			if (result == null) {
 				matcher.appendReplacement(buffer, input.substring(matcher.start(), matcher.end()));
 			}
-			else{
+			else {
 				matcher.appendReplacement(buffer, result);
 			}
 		}
@@ -42,5 +43,5 @@ public final class TitleParser{
 	
 	// Static class
 	
-	private TitleParser(){}
+	private TitleParser() {}
 }

src/main/java/chylex/customwindowtitle/TitleTokens.java

@@ -1,43 +1,44 @@
 package chylex.customwindowtitle;
+
 import java.util.HashMap;
 import java.util.Map;
 import java.util.function.Function;
 import java.util.function.Supplier;
 import java.util.function.UnaryOperator;
 
-public final class TitleTokens{
+public final class TitleTokens {
 	
 	// Registry
 	
 	private static final Map<String, Function<String[], String>> tokenMap = new HashMap<>();
 	
-	public static void registerToken(String token, Function<String[], String> processor){
+	public static void registerToken(final String token, final Function<String[], String> processor) {
 		tokenMap.putIfAbsent(token, processor);
 	}
 	
-	public static Function<String[], String> getTokenFunction(String token){
+	public static Function<String[], String> getTokenFunction(final String token) {
 		return tokenMap.getOrDefault(token, args -> null);
 	}
 	
 	// Arguments
 	
-	public static Function<String[], String> noArgs(Supplier<String> func){
+	public static Function<String[], String> noArgs(final Supplier<String> func) {
 		return args -> args.length > 0 ? fail("expected no arguments, got " + args.length) : func.get();
 	}
 	
-	public static Function<String[], String> oneArg(UnaryOperator<String> func){
+	public static Function<String[], String> oneArg(final UnaryOperator<String> func) {
 		return args -> args.length != 1 ? fail("expected 1 argument, got " + args.length) : func.apply(args[0]);
 	}
 	
-	public static Function<String[], String> rangeArgs(int min, int max, Function<String[], String> func){
+	public static Function<String[], String> rangeArgs(final int min, final int max, final Function<String[], String> func) {
 		return args -> args.length < min || args.length > max ? fail("expected between " + min + " and " + max + " arguments, got " + args.length) : func.apply(args);
 	}
 	
-	private static String fail(String message){
+	private static String fail(final String message) {
 		throw new TokenException(message);
 	}
 	
 	// Static class
 	
-	private TitleTokens(){}
+	private TitleTokens() {}
 }

src/main/java/chylex/customwindowtitle/TokenException.java

@@ -0,0 +1,7 @@
+package chylex.customwindowtitle;
+
+public class TokenException extends RuntimeException {
+	public TokenException(final String message) {
+		super(message);
+	}
+}

src/main/java/chylex/customwindowtitle/data/CommonTokenData.java

@@ -0,0 +1,15 @@
+package chylex.customwindowtitle.data;
+
+import static chylex.customwindowtitle.TitleTokens.noArgs;
+import static chylex.customwindowtitle.TitleTokens.oneArg;
+import static chylex.customwindowtitle.TitleTokens.registerToken;
+
+public final class CommonTokenData {
+	public static void register(final CommonTokenProvider provider) {
+		registerToken("mcversion", noArgs(provider::getMinecraftVersion));
+		registerToken("modversion", oneArg(provider::getModVersion));
+		registerToken("username", noArgs(provider::getUsername));
+	}
+	
+	private CommonTokenData() {}
+}

src/main/java/chylex/customwindowtitle/data/CommonTokenProvider.java

@@ -0,0 +1,16 @@
+package chylex.customwindowtitle.data;
+
+import net.minecraft.SharedConstants;
+import net.minecraft.client.Minecraft;
+
+public interface CommonTokenProvider {
+	default String getMinecraftVersion() {
+		return SharedConstants.getCurrentVersion().getName();
+	}
+	
+	String getModVersion(final String modId);
+	
+	default String getUsername() {
+		return Minecraft.getInstance().getUser().getName();
+	}
+}

src/main/java/chylex/customwindowtitle/mixin/DisableVanillaTitle.java

@@ -0,0 +1,15 @@
+package chylex.customwindowtitle.mixin;
+
+import net.minecraft.client.Minecraft;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Minecraft.class)
+public final class DisableVanillaTitle {
+	@Inject(method = "updateTitle()V", at = @At("HEAD"), cancellable = true)
+	private void updateTitle(final CallbackInfo info) {
+		info.cancel();
+	}
+}

src/main/java/chylex/customwindowtitle/mixin/InitializeCustomIcon.java

@@ -0,0 +1,20 @@
+package chylex.customwindowtitle.mixin;
+
+import chylex.customwindowtitle.IconChanger;
+import chylex.customwindowtitle.TitleConfig;
+import net.minecraft.client.Minecraft;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Minecraft.class)
+public final class InitializeCustomIcon {
+	@Inject(method = "onResourceLoadFinished", at = @At("HEAD"))
+	private void onFinishedLoading(CallbackInfo callbackInfo) {
+		TitleConfig config = TitleConfig.getInstance();
+		if (config != null && config.hasIcon()) {
+			IconChanger.setIcon(config.getIconPath());
+		}
+	}
+}

src/main/resources/customwindowtitle.mixins.json

@@ -0,0 +1,14 @@
+{
+  "required": true,
+  "minVersion": "0.8",
+  "package": "chylex.customwindowtitle.mixin",
+  "refmap": "customwindowtitle.refmap.json",
+  "compatibilityLevel": "JAVA_17",
+  "client": [
+    "DisableVanillaTitle",
+    "InitializeCustomIcon"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

src/main/resources/pack.mcmeta

@@ -0,0 +1,7 @@
+{
+    "pack": {
+        "description": "${name}",
+        "pack_format": 7,
+        "_comment": ""
+    }
+}

src/multiloader/resources/META-INF/jarjar/metadata.json

@@ -0,0 +1,13 @@
+{
+  "jars": [{
+    "identifier": {
+      "group": "${group}",
+      "artifact": "${id}"
+    },
+    "version": {
+      "artifactVersion": "${version}",
+      "range": "[${version}]"
+    },
+    "path": "jars/${jarPrefix}-NeoForge.jar"
+  }]
+}

src/multiloader/resources/fabric.mod.json

@@ -0,0 +1,32 @@
+{
+  "schemaVersion": 1,
+  "id": "${id}_multiloader",
+  "name": "${name} (Multiloader)",
+  "description": "${description}",
+  "version": "${version}",
+  "license": "${license}",
+  
+  "authors": [
+    "${author}"
+  ],
+  
+  "contact": {
+    "homepage": "https://chylex.com",
+    "issues": "${issuesURL}",
+    "sources": "${sourcesURL}"
+  },
+  
+  "environment": "${sidesForFabric}",
+  
+  "jars": [{
+      "file": "jars/${jarPrefix}-Fabric.jar"
+  }],
+  
+  "custom": {
+    "modmenu": {
+      "parent": "${id}",
+      "badges": [ "library" ],
+      "update_checker": false
+    }
+  }
+}