From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Tue, 28 Jan 2025 00:54:57 +0300
Subject: [PATCH] Implement Secure Seed

Original license: GPLv3
Original project: https://github.com/plasmoapp/matter

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
index de8b9048c8395c05b8688bc9d984b8ad680f15b3..98bd60111797225f3be5e2a19e25d654379ca30d 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
@@ -206,7 +206,12 @@ public class CraftChunk implements Chunk {
     @Override
     public boolean isSlimeChunk() {
         // 987234911L is deterimined in EntitySlime when seeing if a slime can spawn in a chunk
-        return this.worldServer.paperConfig().entities.spawning.allChunksAreSlimeChunks || WorldgenRandom.seedSlimeChunk(this.getX(), this.getZ(), this.getWorld().getSeed(), worldServer.spigotConfig.slimeSeed).nextInt(10) == 0; // Paper
+        // DivineMC start - Implement Secure Seed
+        boolean isSlimeChunk = org.bxteam.divinemc.DivineConfig.enableSecureSeed
+                ? worldServer.getChunk(this.getX(), this.getZ()).isSlimeChunk()
+                : WorldgenRandom.seedSlimeChunk(this.getX(), this.getZ(), this.getWorld().getSeed(), worldServer.spigotConfig.slimeSeed).nextInt(10) == 0; // Paper
+        return this.worldServer.paperConfig().entities.spawning.allChunksAreSlimeChunks || isSlimeChunk;
+        // DivineMC end - Implement Secure Seed
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 384ffd0d306cf01ce58864e9d2fcf7def6afca0f..12cfe2abd84f7ba63d935f91ce907bf3f52832da 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1414,7 +1414,11 @@ public final class CraftServer implements Server {
             registryAccess = levelDataAndDimensions.dimensions().dimensionsRegistryAccess();
         } else {
             LevelSettings levelSettings;
-            WorldOptions worldOptions = new WorldOptions(creator.seed(), creator.generateStructures(), false);
+            // DivineMC start - Implement Secure Seed
+            WorldOptions worldOptions = org.bxteam.divinemc.DivineConfig.enableSecureSeed
+                    ? new WorldOptions(creator.seed(), su.plo.matter.Globals.createRandomWorldSeed(), creator.generateStructures(), false)
+                    : new WorldOptions(creator.seed(), creator.generateStructures(), false);
+            // DivineMC end - Implement Secure Seed
             WorldDimensions worldDimensions;
 
             DedicatedServerProperties.WorldDimensionData properties = new DedicatedServerProperties.WorldDimensionData(GsonHelper.parse((creator.generatorSettings().isEmpty()) ? "{}" : creator.generatorSettings()), creator.type().name().toLowerCase(Locale.ROOT));