Simplified config!

README.md

@@ -8,20 +8,9 @@ _Read this guide to get started and join a server in just a minute or two!_
 
 1. Make sure you've got at least Java 17 installed. You can get it [here](https://adoptium.net/temurin/releases).
 2. Download the `aos2-client` JAR file from the [releases page](https://github.com/andrewlalis/ace-of-shades-2/releases) that's compatible with your system.
-3. Create a file named `config.yaml` in the same directory as the JAR file, and place the following text in it:
-```yaml
-serverHost: localhost
-serverPort: 25565
-username: myUsername
-input:
-  mouseSensitivity: 0.005
-display:
-  fullscreen: true
-  captureCursor: true
-  fov: 80
-```
+3. Run the game by double-clicking the JAR file, or entering `java -jar <jarfile>` in a terminal. This should generate a `config.yaml` file.
 4. Set the `serverHost`, `serverPort`, and `username` properties accordingly for the server you want to join.
-5. Run the game by double-clicking the `aos2-client` JAR file, or enter `java -jar aos2-client-{version}.jar` in a terminal.
+5. Run the game again to join the server and start playing!
 
 ## Setting up a Server
 Setting up a server is quite easy. Just go to the [releases page](https://github.com/andrewlalis/ace-of-shades-2/releases) and download the latest `aos2-server` JAR file. Similar to the client, it's best if you provide a `config.yaml` file to the server, in the same directory. The following snippet shows the structure and default values of a server's configuration.

client/src/main/java/nl/andrewl/aos2_client/Client.java

@@ -7,6 +7,7 @@ import nl.andrewl.aos2_client.model.ClientPlayer;
 import nl.andrewl.aos2_client.model.OtherPlayer;
 import nl.andrewl.aos2_client.render.GameRenderer;
 import nl.andrewl.aos2_client.sound.SoundManager;
+import nl.andrewl.aos_core.FileUtils;
 import nl.andrewl.aos_core.config.Config;
 import nl.andrewl.aos_core.model.Player;
 import nl.andrewl.aos_core.model.Projectile;
@@ -20,7 +21,6 @@ import org.joml.Vector3f;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.awt.image.RenderedImage;
 import java.io.IOException;
 import java.nio.file.Path;
 import java.util.List;
@@ -271,7 +271,7 @@ public class Client implements Runnable {
 		if (args.length > 0) {
 			configPaths.add(Path.of(args[0].trim()));
 		}
-		ClientConfig clientConfig = Config.loadConfig(ClientConfig.class, configPaths, new ClientConfig());
+		ClientConfig clientConfig = Config.loadConfig(ClientConfig.class, configPaths, new ClientConfig(), FileUtils.readClasspathFile("default-config.yaml"));
 		Client client = new Client(clientConfig);
 		client.run();
 	}

client/src/main/resources/default-config.yaml

@@ -0,0 +1,14 @@
+# Ace of Shades 2 Client Configuration
+# Set these properties to connect to a server.
+serverHost: localhost
+serverPort: 25565
+username: player
+
+# Settings for input.
+input:
+  mouseSensitivity: 0.005
+# Settings for display.
+display:
+  fullscreen: true
+  captureCursor: true
+  fov: 80

core/src/main/java/nl/andrewl/aos_core/config/Config.java

@@ -19,10 +19,11 @@ public final class Config {
 	 * @param paths The paths to load from.
 	 * @param fallback A default configuration object to use if no config could
 	 *                 be loaded from any of the paths.
+	 * @param defaultConfigFile The default config file to save.
 	 * @return The configuration object.
 	 * @param <T> The type of the configuration object.
 	 */
-	public static <T> T loadConfig(Class<T> configType, List<Path> paths, T fallback) {
+	public static <T> T loadConfig(Class<T> configType, List<Path> paths, T fallback, String defaultConfigFile) {
 		for (var path : paths) {
 			if (Files.exists(path) && Files.isRegularFile(path) && Files.isReadable(path)) {
 				try (var reader = Files.newBufferedReader(path)) {
@@ -32,27 +33,33 @@ public final class Config {
 				}
 			}
 		}
+		Path outputPath = paths.size() > 0 ? paths.get(0) : Path.of("config.yaml");
+		try (var writer = Files.newBufferedWriter(outputPath)) {
+			writer.write(defaultConfigFile);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
 		return fallback;
 	}
 
-	public static <T> T loadConfig(Class<T> configType, List<Path> paths) {
-		var cfg = loadConfig(configType, paths, null);
+	public static <T> T loadConfig(Class<T> configType, List<Path> paths, String defaultConfigFile) {
+		var cfg = loadConfig(configType, paths, null, defaultConfigFile);
 		if (cfg == null) {
 			throw new RuntimeException("Could not load config from any of the supplied paths.");
 		}
 		return cfg;
 	}
 
-	public static <T> T loadConfig(Class<T> configType, T fallback, Path... paths) {
-		return loadConfig(configType, List.of(paths), fallback);
+	public static <T> T loadConfig(Class<T> configType, T fallback, String defaultConfigFile, Path... paths) {
+		return loadConfig(configType, List.of(paths), fallback, defaultConfigFile);
 	}
 
 	public static List<Path> getCommonConfigPaths() {
 		List<Path> paths = new ArrayList<>();
-		paths.add(Path.of("configuration.yaml"));
-		paths.add(Path.of("configuration.yml"));
 		paths.add(Path.of("config.yaml"));
 		paths.add(Path.of("config.yml"));
+		paths.add(Path.of("configuration.yaml"));
+		paths.add(Path.of("configuration.yml"));
 		paths.add(Path.of("cfg.yaml"));
 		paths.add(Path.of("cfg.yml"));
 		return paths;

server/src/main/java/nl/andrewl/aos2_server/Server.java

@@ -180,7 +180,7 @@ public class Server implements Runnable {
 		if (args.length > 0) {
 			configPaths.add(Path.of(args[0].trim()));
 		}
-		ServerConfig cfg = Config.loadConfig(ServerConfig.class, configPaths, new ServerConfig());
+		ServerConfig cfg = Config.loadConfig(ServerConfig.class, configPaths, new ServerConfig(), null);
 		Server server = new Server(cfg);
 		new Thread(server).start();
 		ServerCli.start(server);