Allow server to disable the forced preset override

src/main/java/org/betterx/bclib/BCLib.java

@@ -70,6 +70,8 @@ public class BCLib implements ModInitializer {
         PlacementModifiers.ensureStaticInitialization();
         Configs.save();
 
+        WorldsTogether.FORCE_SERVER_TO_BETTERX_PRESET = Configs.SERVER_CONFIG.forceBetterXPreset();
+
         if (false && isDevEnvironment()) {
             BCLBiome theYellow = BCLBiomeBuilder
                     .start(makeID("the_yellow"))

src/main/java/org/betterx/bclib/config/ServerConfig.java

@@ -55,6 +55,11 @@ public class ServerConfig extends NamedPathConfig {
             "excludeMods",
             AutoSync.SYNC_CATEGORY
     );
+    public static final ConfigToken<Boolean> FORCE_BETTERX_PRESET = ConfigToken.Boolean(
+            true,
+            "forceBetterXPreset",
+            AutoSync.SYNC_CATEGORY
+    );
 
 
     public ServerConfig() {
@@ -85,4 +90,8 @@ public class ServerConfig extends NamedPathConfig {
         return get(SEND_ALL_MOD_INFO) /*&& isAllowingAutoSync()*/;
     }
 
+    public boolean forceBetterXPreset() {
+        return get(FORCE_BETTERX_PRESET);
+    }
+
 }

src/main/java/org/betterx/worlds/together/WorldsTogether.java

@@ -12,6 +12,7 @@ import net.fabricmc.loader.api.FabricLoader;
 
 public class WorldsTogether {
     public static boolean SURPRESS_EXPERIMENTAL_DIALOG = false;
+    public static boolean FORCE_SERVER_TO_BETTERX_PRESET = false;
     public static final String MOD_ID = "worlds_together";
     public static final Logger LOGGER = new Logger(MOD_ID);
     public static final boolean RUNS_TERRABLENDER = FabricLoader.getInstance()

src/main/java/org/betterx/worlds/together/mixin/common/DedicatedServerPropertiesMixin.java

@@ -1,5 +1,6 @@
-package org.betterx.bclib.mixin.common;
+package org.betterx.worlds.together.mixin.common;
 
+import org.betterx.worlds.together.WorldsTogether;
 import org.betterx.worlds.together.worldPreset.WorldPresets;
 
 import net.minecraft.server.dedicated.DedicatedServerProperties;
@@ -10,9 +11,13 @@ import org.spongepowered.asm.mixin.injection.ModifyArg;
 
 @Mixin(DedicatedServerProperties.class)
 public class DedicatedServerPropertiesMixin {
-    //Make sure the default server properties use our Default World Preset
+    //Make sure the default server properties use our Default World Preset by default (read from "level-type")
     @ModifyArg(method = "<init>", index = 3, at = @At(value = "INVOKE", target = "Lnet/minecraft/server/dedicated/DedicatedServerProperties$WorldGenProperties;<init>(Ljava/lang/String;Lcom/google/gson/JsonObject;ZLjava/lang/String;)V"))
-    private String bcl_init(String levelType) {
-        return WorldPresets.getDEFAULT().location().toString();
+    protected String wt_defaultPreset(String string) {
+        if (WorldsTogether.FORCE_SERVER_TO_BETTERX_PRESET) {
+            return WorldPresets.getDEFAULT().location().toString();
+        }
+
+        return string;
     }
 }

src/main/resources/bclib.mixins.common.json

@@ -15,7 +15,6 @@
     "ChunkGeneratorsMixin",
     "ComposterBlockAccessor",
     "CraftingMenuMixin",
-    "DedicatedServerPropertiesMixin",
     "DiggerItemMixin",
     "EnchantingTableBlockMixin",
     "ItemStackMixin",

src/main/resources/together.mixins.common.json

@@ -5,6 +5,7 @@
   "compatibilityLevel": "JAVA_17",
   "mixins": [
     "BuiltinRegistriesMixin",
+    "DedicatedServerPropertiesMixin",
     "DiggerItemAccessor",
     "MainMixin",
     "MinecraftServerMixin",