From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Fri, 7 Aug 2020 12:53:36 -0500
Subject: [PATCH] Add no-random-tick block list


diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index 44d20ffdc6d4ea46682f14ec5bf885bec36969cf..a3bd84427b81e8f0409d6f5fcbbf397b12532afd 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -532,14 +532,14 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         // CraftBukkit end
         if (com.destroystokyo.paper.PaperConfig.useOptimizedTickList) {
             this.nextTickListBlock = new com.destroystokyo.paper.server.ticklist.PaperTickList<>(this, (block) -> {
-                return block == null || block.getBlockData().isAir();
+                return block == null || block.getBlockData().isAir() || purpurConfig.noRandomTickBlocks.contains(block); // Purpur
             }, IRegistry.BLOCK::getKey, this::b, "Blocks"); // Paper - Timings
             this.nextTickListFluid = new com.destroystokyo.paper.server.ticklist.PaperTickList<>(this, (fluidtype) -> {
                 return fluidtype == null || fluidtype == FluidTypes.EMPTY;
             }, IRegistry.FLUID::getKey, this::a, "Fluids"); // Paper - Timings
         } else {
             this.nextTickListBlock = new TickListServer<>(this, (block) -> {
-                return block == null || block.getBlockData().isAir();
+                return block == null || block.getBlockData().isAir() || purpurConfig.noRandomTickBlocks.contains(block); // Purpur
             }, IRegistry.BLOCK::getKey, this::b, "Blocks"); // Paper - Timings
             this.nextTickListFluid = new TickListServer<>(this, (fluidtype) -> {
                 return fluidtype == null || fluidtype == FluidTypes.EMPTY;
diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
index 1d82f719440c95765c01a588f4785d630b8b527a..0ea0a1fc5f4d879d48bbdf24731dabec10dbccd1 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
@@ -671,10 +671,12 @@ public abstract class BlockBase {
         }
 
         public void a(WorldServer worldserver, BlockPosition blockposition, Random random) {
+            if (worldserver.purpurConfig.noRandomTickBlocks.contains(getBlock())) return; // Purpur
             this.getBlock().tickAlways(this.p(), worldserver, blockposition, random);
         }
 
         public void b(WorldServer worldserver, BlockPosition blockposition, Random random) {
+            if (worldserver.purpurConfig.noRandomTickBlocks.contains(getBlock())) return; // Purpur
             this.getBlock().tick(this.p(), worldserver, blockposition, random);
         }
 
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 96e5aaec4e35bd092e9a71ca5cb61c6a66b9c0fc..aa4302ba319c0968632025524d5a9c5479a693e2 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -11,8 +11,10 @@ import org.bukkit.configuration.ConfigurationSection;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.logging.Level;
 
 import static net.pl3x.purpur.PurpurConfig.log;
@@ -247,6 +249,28 @@ public class PurpurWorldConfig {
         playerInvulnerableWhileAcceptingResourcePack = getBoolean("gameplay-mechanics.player.invulnerable-while-accepting-resource-pack", playerInvulnerableWhileAcceptingResourcePack);
     }
 
+    public Set<Block> noRandomTickBlocks = new HashSet<>();
+    private void noRandomTickBlocks() {
+        if (PurpurConfig.version < 11) {
+            List<String> oldList = PurpurConfig.config.getStringList("world-settings." + worldName + ".blocks.no-tick");
+            if (!oldList.isEmpty()) {
+                PurpurConfig.config.set("world-settings." + worldName + ".blocks.no-random-tick", oldList);
+                PurpurConfig.config.set("world-settings." + worldName + ".blocks.no-tick", null);
+            }
+            oldList = PurpurConfig.config.getStringList("world-settings.default.blocks.no-tick");
+            if (!oldList.isEmpty()) {
+                PurpurConfig.config.set("world-settings.default.blocks.no-random-tick", oldList);
+                PurpurConfig.config.set("world-settings.default.blocks.no-tick", null);
+            }
+        }
+        getList("blocks.no-random-tick", new ArrayList<>()).forEach(key -> {
+            Block block = IRegistry.BLOCK.get(new MinecraftKey(key.toString()));
+            if (!block.getBlockData().isAir()) {
+                noRandomTickBlocks.add(block);
+            }
+        });
+    }
+
     public boolean teleportIfOutsideBorder = false;
     private void teleportIfOutsideBorder() {
         teleportIfOutsideBorder = getBoolean("gameplay-mechanics.player.teleport-if-outside-border", teleportIfOutsideBorder);