Config support

can prob be improved but that will be done later :trollface:

src/main/java/land/chipmunk/chipmunkmod/ChipmunkMod.java

@@ -1,14 +1,24 @@
 package land.chipmunk.chipmunkmod;
 
 import net.fabricmc.api.ModInitializer;
+import java.io.InputStream;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import com.google.gson.Gson;
 
 public class ChipmunkMod implements ModInitializer {
   // This logger is used to write text to the console and the log file.
   // It is considered best practice to use your mod id as the logger's name.
   // That way, it's clear which mod wrote info, warnings, and errors.
   public static final Logger LOGGER = LoggerFactory.getLogger("chipmunkmod");
+  public static Configuration CONFIG;
 
   @Override
   public void onInitialize () {
@@ -16,6 +26,39 @@ public class ChipmunkMod implements ModInitializer {
     // However, some things (like resources) may still be uninitialized.
     // Proceed with mild caution.
 
+    try {
+      new File("config").mkdirs(); // TODO: Clean this up
+      CONFIG = loadConfig();
+    } catch (IOException exception) {
+      throw new RuntimeException("Could not load the config", exception);
+    }
+
     LOGGER.info("Hello Fabric world!");
   }
+
+  public static Configuration loadConfig () throws IOException {
+    final Gson gson = new Gson();
+    final File file = new File("config/chipmunkmod.json");
+
+    if (!file.exists()) {
+      InputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream("default_config.json");
+      BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+
+      final StringBuilder sb = new StringBuilder();
+      while (reader.ready()) sb.append((char) reader.read());
+      final String defaultConfig = sb.toString();
+
+      // Write the default config
+      BufferedWriter configWriter = new BufferedWriter(new FileWriter(file));
+      configWriter.write(defaultConfig);
+      configWriter.close();
+
+      return gson.fromJson(defaultConfig, Configuration.class);
+    }
+
+    InputStream is = new FileInputStream(file);
+    BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+
+    return gson.fromJson(reader, Configuration.class);
+  }
 }

src/main/java/land/chipmunk/chipmunkmod/Configuration.java

@@ -0,0 +1,17 @@
+package land.chipmunk.chipmunkmod;
+
+import land.chipmunk.chipmunkmod.data.BlockArea;
+import net.minecraft.util.math.BlockPos;
+
+public class Configuration {
+  public CommandManager commands = new CommandManager();
+  public CommandCore core = new CommandCore();
+
+  public class CommandManager {
+    public String prefix = ".";
+  }
+
+  public class CommandCore {
+    public BlockArea relativeArea = new BlockArea(new BlockPos(0, 0, 0), new BlockPos(15, 0, 15));
+  }
+}

src/main/java/land/chipmunk/chipmunkmod/command/CommandManager.java

@@ -13,11 +13,12 @@ import net.minecraft.text.MutableText;
 import net.minecraft.util.Formatting;
 import net.minecraft.client.MinecraftClient;
 import net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource;
+import land.chipmunk.chipmunkmod.ChipmunkMod;
 import land.chipmunk.chipmunkmod.commands.*;
 
 public class CommandManager {
   public static CommandDispatcher<FabricClientCommandSource> dispatcher = new CommandDispatcher();
-  public static String prefix = ".";
+  public static String prefix = ChipmunkMod.CONFIG.commands.prefix;
 
   public static void executeCommand (String command) {
     final MinecraftClient client = MinecraftClient.getInstance();

src/main/java/land/chipmunk/chipmunkmod/modules/CommandCore.java

@@ -15,20 +15,21 @@ import java.util.Timer;
 import java.util.TimerTask;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Consumer;
+import land.chipmunk.chipmunkmod.ChipmunkMod;
 import land.chipmunk.chipmunkmod.data.BlockArea;
 
 public class CommandCore {
   private MinecraftClient client;
   @Getter @Setter private boolean ready = false; 
   @Getter @Setter private BlockPos origin;
-  // TODO: Make it configurable
+  @Getter private final BlockArea relativeArea;
-  @Getter private final BlockArea relativeArea = new BlockArea(new BlockPos(0, 0, 0), new BlockPos(15, 0, 15));
   @Getter @Setter private BlockPos currentBlockRelative;
 
-  public static CommandCore INSTANCE = new CommandCore(MinecraftClient.getInstance());
+  public static CommandCore INSTANCE = new CommandCore(MinecraftClient.getInstance(), ChipmunkMod.CONFIG.core.relativeArea);
 
-  public CommandCore (MinecraftClient client) {
+  public CommandCore (MinecraftClient client, BlockArea relativeArea) {
     this.client = client;
+    this.relativeArea = relativeArea;
   }
 
   public void move (Vec3d position) {

src/main/resources/default_config.json

@@ -0,0 +1,12 @@
+{
+  "commands": {
+    "prefix": "."
+  },
+
+  "core": {
+    "relativeArea": {
+      "start": { "x": 0, "y": 0, "z": 0 },
+      "end": { "x": 15, "y": 0, "z": 15 }
+    }
+  }
+}