Implement sea level tweak

README.md

@@ -149,6 +149,7 @@ All changes are toggleable via the config file.
 * **Remove Realms Button:** Removes the redundant Minecraft Realms button from the main menu
 * **Remove Recipe Book:** Removes the recipe book button from GUIs
 * **Remove Snooper:** Forcefully turns off the snooper and hides the snooper settings button from the options menu
+* **Sea Level:** Sets the default height of the overworld's sea level
 * **Shield Parry:** Allows parrying of projectiles with shields
 * **Skip Credits:** Skips the credits screen after the player goes through the end podium portal
 * **Skip Missing Registry Entries Screen:** Automatically confirms the 'Missing Registry Entries' screen on world load

src/main/java/mod/acgaming/universaltweaks/config/UTConfig.java

@@ -1693,6 +1693,15 @@ public static class TweaksWorldCategory
         @Config.Name("Dimension Unload")
         public final DimensionUnloadCategory DIMENSION_UNLOAD = new DimensionUnloadCategory();
 
+        @Config.RequiresMcRestart
+        @Config.Name("Sea Level")
+        @Config.Comment
+            ({
+                "Sets the default height of the overworld's sea level",
+                "Vanilla default is 63"
+            })
+        public int utSeaLevel = 63;
+
         @Config.RequiresMcRestart
         @Config.Name("Stronghold Replacement")
         @Config.Comment("Replaces stronghold generation with a safer variant")

src/main/java/mod/acgaming/universaltweaks/core/UTLoadingPlugin.java

@@ -191,7 +191,8 @@ public List<String> getMixinConfigs()
             "mixins.tweaks.performance.resourcemanager.json",
             "mixins.tweaks.world.chunks.gen.json",
             "mixins.tweaks.world.loading.client.json",
-            "mixins.tweaks.world.loading.server.json") :
+            "mixins.tweaks.world.loading.server.json",
+            "mixins.tweaks.world.sealevel.json") :
             Arrays.asList(
                 "mixins.bugfixes.blocks.comparatortiming.json",
                 "mixins.bugfixes.blocks.fallingblockdamage.json",
@@ -265,7 +266,8 @@ public List<String> getMixinConfigs()
                 "mixins.tweaks.performance.prefixcheck.json",
                 "mixins.tweaks.performance.redstone.json",
                 "mixins.tweaks.world.chunks.gen.json",
-                "mixins.tweaks.world.loading.server.json"
+                "mixins.tweaks.world.loading.server.json",
+                "mixins.tweaks.world.sealevel.json"
             );
     }
 
@@ -478,6 +480,8 @@ public boolean shouldMixinConfigQueue(String mixinConfig)
                 return UTConfig.TWEAKS_WORLD.CHUNK_GEN_LIMIT.utChunkGenLimitToggle;
             case "mixins.tweaks.world.loading.server.json":
                 return UTConfig.TWEAKS_PERFORMANCE.utWorldLoadingToggle;
+            case "mixins.tweaks.world.sealevel.json":
+                return UTConfig.TWEAKS_WORLD.utSeaLevel != 63;
         }
         return true;
     }

src/main/java/mod/acgaming/universaltweaks/tweaks/world/sealevel/mixin/UTSeaLevelChunkGeneratorMixin.java

@@ -0,0 +1,21 @@
+package mod.acgaming.universaltweaks.tweaks.world.sealevel.mixin;
+
+import mod.acgaming.universaltweaks.config.UTConfig;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(targets = "net.minecraft.world.gen.ChunkGeneratorSettings$Factory")
+public class UTSeaLevelChunkGeneratorMixin
+{
+    @Shadow
+    public int seaLevel;
+
+    @Inject(method = "setDefaults", at = @At(value = "TAIL"))
+    public void utSeaLevel(CallbackInfo ci)
+    {
+        seaLevel = UTConfig.TWEAKS_WORLD.utSeaLevel;
+    }
+}

src/main/java/mod/acgaming/universaltweaks/tweaks/world/sealevel/mixin/UTSeaLevelWorldMixin.java

@@ -0,0 +1,27 @@
+package mod.acgaming.universaltweaks.tweaks.world.sealevel.mixin;
+
+import net.minecraft.profiler.Profiler;
+import net.minecraft.world.World;
+import net.minecraft.world.WorldProvider;
+import net.minecraft.world.storage.ISaveHandler;
+import net.minecraft.world.storage.WorldInfo;
+
+import mod.acgaming.universaltweaks.config.UTConfig;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(World.class)
+public abstract class UTSeaLevelWorldMixin
+{
+    @Shadow
+    private int seaLevel;
+
+    @Inject(method = "<init>", at = @At(value = "TAIL"))
+    public void utSeaLevel(ISaveHandler saveHandlerIn, WorldInfo info, WorldProvider providerIn, Profiler profilerIn, boolean client, CallbackInfo ci)
+    {
+        seaLevel = UTConfig.TWEAKS_WORLD.utSeaLevel;
+    }
+}

src/main/resources/mixins.tweaks.world.sealevel.json

@@ -0,0 +1,7 @@
+{
+  "package": "mod.acgaming.universaltweaks.tweaks.world.sealevel.mixin",
+  "refmap": "universaltweaks.refmap.json",
+  "minVersion": "0.8",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": ["UTSeaLevelChunkGeneratorMixin", "UTSeaLevelWorldMixin"]
+}