src/main/java/dev/frogmc/frogloader/api/FrogLoader.java

@@ -6,16 +6,15 @@ import java.util.Optional;
 
 import dev.frogmc.frogloader.api.env.Env;
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogGamePlugin;
-import dev.frogmc.frogloader.api.plugin.FrogModProvider;
-import dev.frogmc.frogloader.api.plugin.FrogPlugin;
+import dev.frogmc.frogloader.api.plugin.GamePlugin;
+import dev.frogmc.frogloader.api.plugin.ModProvider;
 import dev.frogmc.frogloader.impl.FrogLoaderImpl;
 
 /**
  * General API to interact with this loader.
  *
  * @see ModProperties
- * @see FrogPlugin
+ * @see ModProvider
  * @see Env
  */
 public interface FrogLoader {
@@ -34,14 +33,14 @@ public interface FrogLoader {
 	 *
 	 * @return The game plugin applicable to the current game
 	 */
-	FrogGamePlugin getGamePlugin();
+	GamePlugin getGamePlugin();
 
 	/**
 	 * Get all loaded mod providers.
 	 *
 	 * @return A collection of all loaded mod providers
 	 */
-	Collection<FrogModProvider> getModProviders();
+	Collection<ModProvider> getModProviders();
 
 	/**
 	 * Get the current (physical) environment.
@@ -103,12 +102,13 @@ public interface FrogLoader {
 	 *
 	 * @return A collection of all loaded mods
 	 * @see ModProperties
-	 * @see FrogPlugin
+	 * @see ModProvider
 	 */
 	Collection<ModProperties> getMods();
 
 	/**
 	 * Get the version of the currently loaded game
+	 *
 	 * @return The current game version
 	 */
 	String getGameVersion();

src/main/java/dev/frogmc/frogloader/api/plugin/FrogGamePlugin.java

@@ -1,22 +0,0 @@
-package dev.frogmc.frogloader.api.plugin;
-
-import dev.frogmc.frogloader.api.FrogLoader;
-import dev.frogmc.frogloader.api.mod.ModProperties;
-
-public interface FrogGamePlugin {
-	default void run() {
-	}
-
-	default boolean isApplicable() {
-		return false;
-	}
-
-	default void init(FrogLoader loader) throws Exception {
-	}
-
-	String queryVersion();
-
-	default ModProperties getGameMod() {
-		return null;
-	}
-}

src/main/java/dev/frogmc/frogloader/api/plugin/FrogModProvider.java

@@ -1,34 +0,0 @@
-package dev.frogmc.frogloader.api.plugin;
-
-import java.nio.file.Path;
-import java.util.Collection;
-import java.util.Collections;
-
-import dev.frogmc.frogloader.api.mod.ModProperties;
-
-public interface FrogModProvider {
-	String id();
-
-	default String loadDirectory() {
-		return "mods";
-	}
-
-	default boolean isApplicable() {
-		return false;
-	}
-
-	default boolean isFileApplicable(Path path) {
-		return false;
-	}
-
-	default boolean isDirectoryApplicable(Path path) {
-		return false;
-	}
-
-	default void preLaunch(Collection<ModProperties> mods) {
-	}
-
-	default Collection<ModProperties> loadMods(Collection<Path> modFiles) throws Exception {
-		return Collections.emptySet();
-	}
-}

src/main/java/dev/frogmc/frogloader/api/plugin/FrogPlugin.java

@@ -1,57 +0,0 @@
-package dev.frogmc.frogloader.api.plugin;
-
-import java.util.Collection;
-import java.util.Collections;
-
-import dev.frogmc.frogloader.api.FrogLoader;
-import dev.frogmc.frogloader.api.mod.ModProperties;
-
-/**
- * A Plugin that may load mods for a specific game and environment
- *
- * @see FrogLoader
- */
-public interface FrogPlugin {
-
-	/**
-	 * General run method of this plugin. This method is run after all plugins have been initialized.
-	 *
-	 * @see FrogPlugin#init(FrogLoader)
-	 * @see FrogPlugin#getMods()
-	 */
-	default void run() {
-	}
-
-	/**
-	 * Check whether this plugin is applicable for the current environment
-	 *
-	 * @return Whether this plugin is applicable to be loaded in the current environment
-	 */
-	default boolean isApplicable() {
-		return false;
-	}
-
-	/**
-	 * Initialization method for this plugin. This method will be called after <code>isApplicable()</code>
-	 * if it returns true to initialize is plugin.
-	 *
-	 * @param loader the loader loading this plugin
-	 * @throws Exception This method may throw any exception, it will be handled by the loader.
-	 * @see FrogPlugin#isApplicable()
-	 * @see FrogPlugin#getMods()
-	 */
-	default void init(FrogLoader loader) throws Exception {
-	}
-
-	/**
-	 * This method should return all mods loaded by this plugin. It will be queried after <code>init(FrogLoader)</code>
-	 * and before <code>run()</code>.
-	 *
-	 * @return A collection of mods loaded by this plugin.
-	 * @see FrogPlugin#init(FrogLoader)
-	 * @see FrogPlugin#run()
-	 */
-	default Collection<ModProperties> getMods() {
-		return Collections.emptySet();
-	}
-}

src/main/java/dev/frogmc/frogloader/api/plugin/GamePlugin.java

@@ -0,0 +1,52 @@
+package dev.frogmc.frogloader.api.plugin;
+
+import dev.frogmc.frogloader.api.FrogLoader;
+import dev.frogmc.frogloader.api.mod.ModProperties;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A plugin responsible for loading a game.
+ * Only one of these may be loaded at a time.
+ * @see FrogLoader
+ * @see	 ModProvider
+ */
+public interface GamePlugin {
+	/**
+	 * Method to launch the game.
+	 * This method will be called after mods are located and loaded.
+	 */
+	default void run() {
+	}
+
+	/**
+	 * Whether this plugin is applicable to be loaded in the current environment.
+	 * Only one plugin may be applicable at a time.
+	 * @return Whether this plugin is applicable to be loaded
+	 */
+	default boolean isApplicable() {
+		return false;
+	}
+
+	/**
+	 * Initialize this plugin.
+	 * @param loader The loader currently loading this plugin
+	 * @throws Exception If an exception occurs during initialization. It will be handled by the loader.
+	 */
+	default void init(FrogLoader loader) throws Exception {
+	}
+
+	/**
+	 * Queries the version of the game of this plugin.
+	 * @return The version of the game loaded by this plugin
+	 */
+	@NotNull
+	String queryVersion();
+
+	/**
+	 * Get the mod embodying the game loaded by this plugin.
+	 * @return A mod for the currently loaded game. May be null if no such mod shall be added.
+	 */
+	default ModProperties getGameMod() {
+		return null;
+	}
+}

src/main/java/dev/frogmc/frogloader/api/plugin/ModProvider.java

@@ -0,0 +1,85 @@
+package dev.frogmc.frogloader.api.plugin;
+
+import java.net.URL;
+import java.nio.file.Path;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.function.Consumer;
+
+import dev.frogmc.frogloader.api.mod.ModProperties;
+import dev.frogmc.frogloader.api.FrogLoader;
+
+/**
+ * A provider for mods to be loaded.
+ * @see	FrogLoader
+ * @see GamePlugin
+ * @see ModProperties
+ */
+public interface ModProvider {
+
+	/**
+	 * Get the ID of this provider. Mods will be stored separated by their provider ID.
+	 * @return The ID of this provider
+	 */
+	String id();
+
+	/**
+	 * The directory to search in for mods. This will be resolved relative to the game directory.
+	 * @return The name of the mods directory, relative to the game directory
+	 */
+	default String loadDirectory() {
+		return "mods";
+	}
+
+	/**
+	 * Whether this provider is applicable to load in the current environment.
+	 * @return Whether this provider is applicable to load
+	 */
+	default boolean isApplicable() {
+		return false;
+	}
+
+	/**
+	 * Whether a mod file is valid to be loaded by this provider.
+	 * @param path The path to validate
+	 * @return Whether this path is valid to be loaded by this provider
+	 * @see #isDirectoryApplicable(Path)
+	 * @see #loadDirectory()
+	 */
+	default boolean isFileApplicable(Path path) {
+		return false;
+	}
+
+	/**
+	 * Whether a directory (inside the path declared by this provider's mod directory) is valid to be queried for mods
+	 * to be loaded by this provider.
+	 * @param path The directory to be validated
+	 * @return Whether this directory should be traversed further
+	 * @see	#loadDirectory()
+	 * @see #isFileApplicable(Path)
+	 */
+	default boolean isDirectoryApplicable(Path path) {
+		return false;
+	}
+
+	/**
+	 * This method will be invoked just before the game is launched. It may be used for a pre-launch entrypoint for mods.
+	 * @param mods The mods loaded by this provider
+	 */
+	default void preLaunch(Collection<ModProperties> mods) {
+	}
+
+	/**
+	 * This method should load the mods found previously into their runtime representation.
+	 * This method should also load any nested mods
+	 * <p>Note: This method also needs to add mods to the classpath for them to be loaded correctly. For this, a parameter is provided.</p>
+	 *
+	 * @param modFiles The paths to be loaded by this provider
+	 * @param classpathAdder A consumer to easily add URLs to the classpath used to run the game on
+	 * @return Mods loaded by this provider
+	 * @throws Exception If an exception occurs during loading. It will be handled by the loader.
+	 */
+	default Collection<ModProperties> loadMods(Collection<Path> modFiles, Consumer<URL> classpathAdder) throws Exception {
+		return Collections.emptySet();
+	}
+}

src/main/java/dev/frogmc/frogloader/impl/FrogLoaderImpl.java

@@ -14,8 +14,8 @@ import com.google.gson.Gson;
 import dev.frogmc.frogloader.api.FrogLoader;
 import dev.frogmc.frogloader.api.env.Env;
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogGamePlugin;
-import dev.frogmc.frogloader.api.plugin.FrogModProvider;
+import dev.frogmc.frogloader.api.plugin.GamePlugin;
+import dev.frogmc.frogloader.api.plugin.ModProvider;
 import dev.frogmc.frogloader.impl.gui.LoaderGui;
 import dev.frogmc.frogloader.impl.launch.MixinClassLoader;
 import dev.frogmc.frogloader.impl.mod.ModUtil;
@@ -37,7 +37,7 @@ public class FrogLoaderImpl implements FrogLoader {
 	@Getter
 	private final Env env;
 	@Getter
-	private final Collection<FrogModProvider> modProviders = new ArrayList<>();
+	private final Collection<ModProvider> modProviders = new ArrayList<>();
 	@Getter
 	private final Path gameDir, configDir;
 	@Getter
@@ -48,7 +48,7 @@ public class FrogLoaderImpl implements FrogLoader {
 	private final Gson gson = new Gson();
 	private final Map<String, Map<String, ModProperties>> mods = new HashMap<>();
 	@Getter
-	private FrogGamePlugin gamePlugin;
+	private GamePlugin gamePlugin;
 	@Getter
 	private String gameVersion;
 	private Collection<String> modIds = new ArrayList<>();
@@ -73,7 +73,7 @@ public class FrogLoaderImpl implements FrogLoader {
 		try {
 			loadGamePlugin();
 			loadModProviders();
-			modProviders.stream().map(FrogModProvider::loadDirectory).map(gameDir::resolve).forEach(modsDirs::add);
+			modProviders.stream().map(ModProvider::loadDirectory).map(gameDir::resolve).forEach(modsDirs::add);
 			advanceMixinState();
 			modIds = collectModIds();
 			LOGGER.info(ModUtil.getModList(getMods()));
@@ -105,7 +105,7 @@ public class FrogLoaderImpl implements FrogLoader {
 	}
 
 	private void loadGamePlugin() {
-		FrogGamePlugin plugin = PluginLoader.discoverGamePlugins();
+		GamePlugin plugin = PluginLoader.discoverGamePlugins();
 		gameVersion = plugin.queryVersion();
 		ModProperties gameMod = plugin.getGameMod();
 		if (gameMod != null) {

src/main/java/dev/frogmc/frogloader/impl/PluginLoader.java

@@ -9,8 +9,8 @@ import java.util.stream.Collectors;
 
 import dev.frogmc.frogloader.api.FrogLoader;
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogGamePlugin;
-import dev.frogmc.frogloader.api.plugin.FrogModProvider;
+import dev.frogmc.frogloader.api.plugin.GamePlugin;
+import dev.frogmc.frogloader.api.plugin.ModProvider;
 import dev.frogmc.frogloader.impl.gui.LoaderGui;
 import dev.frogmc.frogloader.impl.mixin.AWProcessor;
 import dev.frogmc.frogloader.impl.mod.BuiltinExtensions;
@@ -23,10 +23,10 @@ import org.spongepowered.asm.mixin.Mixins;
 public class PluginLoader {
 	private static final Logger LOGGER = LoggerFactory.getLogger("FrogLoader/Plugins");
 
-	public static void discoverModProviders(Path gameDir, Map<String, Map<String, ModProperties>> mods, Collection<String> modIds, Collection<FrogModProvider> modProviders) throws ModDependencyResolver.ResolverException {
+	public static void discoverModProviders(Path gameDir, Map<String, Map<String, ModProperties>> mods, Collection<String> modIds, Collection<ModProvider> modProviders) throws ModDependencyResolver.ResolverException {
 		LOGGER.info("Discovering mod providers...");
 
-		for (FrogModProvider plugin : ServiceLoader.load(FrogModProvider.class)) {
+		for (ModProvider plugin : ServiceLoader.load(ModProvider.class)) {
 			LOGGER.debug("Found mod provider: {}", plugin.getClass().getName());
 			if (!plugin.isApplicable()) {
 				continue;
@@ -34,7 +34,7 @@ public class PluginLoader {
 			try {
 				LOGGER.debug("Initialising mod provider: {}", plugin.id());
 				Map<String, ModProperties> modsFromProvider = new HashMap<>();
-				Collection<ModProperties> loadedMods = plugin.loadMods(Discovery.find(gameDir.resolve(plugin.loadDirectory()), plugin::isDirectoryApplicable, plugin::isFileApplicable));
+				Collection<ModProperties> loadedMods = plugin.loadMods(Discovery.find(gameDir.resolve(plugin.loadDirectory()), plugin::isDirectoryApplicable, plugin::isFileApplicable), FrogLoaderImpl.getInstance().getClassloader()::addURL);
 				initializeModMixins(loadedMods);
 				AWProcessor.load(loadedMods);
 
@@ -72,18 +72,18 @@ public class PluginLoader {
 		});
 	}
 
-	public static FrogGamePlugin discoverGamePlugins() {
+	public static GamePlugin discoverGamePlugins() {
 		LOGGER.info("Discovering game plugins...");
-		ServiceLoader<FrogGamePlugin> loader = ServiceLoader.load(FrogGamePlugin.class);
+		ServiceLoader<GamePlugin> loader = ServiceLoader.load(GamePlugin.class);
 		loader.stream().map(ServiceLoader.Provider::get).forEach(p -> LOGGER.info("Found game plugin: {}", p.getClass().getName()));
-		FrogGamePlugin[] applicablePlugins = ServiceLoader.load(FrogGamePlugin.class).stream().map(ServiceLoader.Provider::get).filter(FrogGamePlugin::isApplicable).toArray(FrogGamePlugin[]::new);
+		GamePlugin[] applicablePlugins = ServiceLoader.load(GamePlugin.class).stream().map(ServiceLoader.Provider::get).filter(GamePlugin::isApplicable).toArray(GamePlugin[]::new);
 		if (applicablePlugins.length > 1) {
 			throw new IllegalStateException("Multiple applicable game plugins found!");
 		} else if (applicablePlugins.length == 0) {
 			throw new IllegalStateException("No applicable game plugin found!");
 		}
 
-		FrogGamePlugin plugin = applicablePlugins[0]; // we can skip the loop as we always will only have one element
+		GamePlugin plugin = applicablePlugins[0]; // we can skip the loop as we always will only have one element
 		try {
 			plugin.init(FrogLoader.getInstance());
 			return plugin;

src/main/java/dev/frogmc/frogloader/impl/plugin/game/minecraft/MinecraftGamePlugin.java

@@ -14,15 +14,16 @@ import dev.frogmc.frogloader.api.FrogLoader;
 import dev.frogmc.frogloader.api.mod.ModDependencies;
 import dev.frogmc.frogloader.api.mod.ModExtensions;
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogGamePlugin;
+import dev.frogmc.frogloader.api.plugin.GamePlugin;
 import dev.frogmc.frogloader.impl.FrogLoaderImpl;
 import dev.frogmc.frogloader.impl.mod.ModPropertiesImpl;
 import dev.frogmc.frogloader.impl.util.SystemProperties;
 import dev.frogmc.thyroxine.Thyroxine;
+import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class MinecraftGamePlugin implements FrogGamePlugin {
+public class MinecraftGamePlugin implements GamePlugin {
 
 	protected final String[] MINECRAFT_CLASSES = new String[]{
 			"net/minecraft/client/main/Main.class",
@@ -126,7 +127,7 @@ public class MinecraftGamePlugin implements FrogGamePlugin {
 	}
 
 	@Override
-	public String queryVersion() {
+	public @NotNull String queryVersion() {
 		return version;
 	}
 

src/main/java/dev/frogmc/frogloader/impl/plugin/mod/FrogModProvider.java

@@ -2,23 +2,24 @@ package dev.frogmc.frogloader.impl.plugin.mod;
 
 import java.io.IOException;
 import java.net.MalformedURLException;
+import java.net.URL;
 import java.nio.file.*;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.util.*;
+import java.util.function.Consumer;
 
 import com.electronwill.nightconfig.core.UnmodifiableConfig;
 import dev.frogmc.frogloader.api.FrogLoader;
 import dev.frogmc.frogloader.api.extensions.PreLaunchExtension;
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogModProvider;
-import dev.frogmc.frogloader.impl.FrogLoaderImpl;
+import dev.frogmc.frogloader.api.plugin.ModProvider;
 import dev.frogmc.frogloader.impl.mod.BuiltinExtensions;
 import dev.frogmc.frogloader.impl.mod.ModPropertiesReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings("unused")
-public class FrogmodModProvider implements FrogModProvider {
+public class FrogModProvider implements ModProvider {
 
 	public static final String MOD_FILE_EXTENSION = ".frogmod";
 
@@ -53,7 +54,7 @@ public class FrogmodModProvider implements FrogModProvider {
 	}
 
 	@Override
-	public Collection<ModProperties> loadMods(Collection<Path> paths) throws Exception {
+	public Collection<ModProperties> loadMods(Collection<Path> paths, Consumer<URL> classpathAdder) throws Exception {
 		Path jijCache = getJijCacheDir();
 
 		Map<Path, ModProperties> mods = new HashMap<>();
@@ -74,7 +75,7 @@ public class FrogmodModProvider implements FrogModProvider {
 				LOGGER.warn("Failed to resolve url for {}", path, e);
 				return null;
 			}
-		}).filter(Objects::nonNull).forEach(FrogLoaderImpl.getInstance().getClassloader()::addURL);
+		}).filter(Objects::nonNull).forEach(classpathAdder);
 
 		loadedMods.addAll(mods.values());
 

src/main/java/dev/frogmc/frogloader/impl/plugin/mod/JavaModProvider.java

@@ -1,14 +1,16 @@
 package dev.frogmc.frogloader.impl.plugin.mod;
 
+import java.net.URL;
 import java.nio.file.Path;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.function.Consumer;
 
 import dev.frogmc.frogloader.api.mod.ModProperties;
-import dev.frogmc.frogloader.api.plugin.FrogModProvider;
+import dev.frogmc.frogloader.api.plugin.ModProvider;
 import dev.frogmc.frogloader.impl.mod.JavaModProperties;
 
-public class JavaModProvider implements FrogModProvider {
+public class JavaModProvider implements ModProvider {
 	@Override
 	public String id() {
 		return "frogloader:integrated/java";
@@ -20,7 +22,7 @@ public class JavaModProvider implements FrogModProvider {
 	}
 
 	@Override
-	public Collection<ModProperties> loadMods(Collection<Path> modFiles) throws Exception {
+	public Collection<ModProperties> loadMods(Collection<Path> modFiles, Consumer<URL> classpathAdder) throws Exception {
 		return Collections.singleton(JavaModProperties.get());
 	}
 }

src/main/resources/META-INF/services/dev.frogmc.frogloader.api.plugin.FrogModProvider

@@ -1,2 +0,0 @@
-dev.frogmc.frogloader.impl.plugin.mod.JavaModProvider
-dev.frogmc.frogloader.impl.plugin.mod.FrogmodModProvider

src/main/resources/META-INF/services/dev.frogmc.frogloader.api.plugin.ModProvider

@@ -0,0 +1,2 @@
+dev.frogmc.frogloader.impl.plugin.mod.JavaModProvider
+dev.frogmc.frogloader.impl.plugin.mod.FrogModProvider