Add Force-Loaded Chunk API (#1387)

Spigot-API-Patches/0145-Add-Force-Loaded-Chunk-API.patch

@@ -0,0 +1,55 @@
+From d23e81f76200c6ce73ceff362b0bb061046285fb Mon Sep 17 00:00:00 2001
+From: willies952002 <admin@domnian.com>
+Date: Wed, 29 Aug 2018 00:37:30 -0400
+Subject: [PATCH] Add Force-Loaded Chunk API
+
+
+diff --git a/src/main/java/org/bukkit/Chunk.java b/src/main/java/org/bukkit/Chunk.java
+index dc847340..51bc051f 100644
+--- a/src/main/java/org/bukkit/Chunk.java
++++ b/src/main/java/org/bukkit/Chunk.java
+@@ -151,4 +151,20 @@ public interface Chunk {
+      * @return true if slimes are able to spawn in this chunk
+      */
+     boolean isSlimeChunk();
++
++    // Paper start - Force-Loaded Chunk API
++    /**
++     * Checks if the chunk is currently force-loaded
++     *
++     * @return true if the chunk is force-loaded, otherwise false
++     */
++    boolean isForceLoaded();
++
++    /**
++     * Set's whether a chunk is force-loaded or not
++     *
++     * @param force whether or not to force load this chunk
++     */
++    void setForceLoaded(boolean force);
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
+index 53764fae..00b02e36 100644
+--- a/src/main/java/org/bukkit/World.java
++++ b/src/main/java/org/bukkit/World.java
+@@ -201,6 +201,16 @@ public interface World extends PluginMessageRecipient, Metadatable {
+      * @return true if the chunk has been generated, otherwise false
+      */
+     public boolean isChunkGenerated(int x, int z);
++
++    /**
++     * Checks if a chunk is force-loaded.
++     * Note: This will only return true if the chunk is also generated
++     *
++     * @param x X-coordinate of the chunk
++     * @param z Z-coordinate of the chunk
++     * @return true if the chunk is force-loaded. otherwise false
++     */
++    public boolean isChunkForceLoaded(int x, int z);
+     // Paper end
+ 
+     /**
+-- 
+2.19.0.rc1
+

Spigot-Server-Patches/0354-Implement-Force-Loaded-Chunk-API.patch

@@ -0,0 +1,59 @@
+From 64a7e90d6fc4c9d64a49ea15cb90268f662086e0 Mon Sep 17 00:00:00 2001
+From: willies952002 <admin@domnian.com>
+Date: Wed, 29 Aug 2018 00:37:42 -0400
+Subject: [PATCH] Implement Force-Loaded Chunk API
+
+
+diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
+index 49809372d..2b5b0c4df 100644
+--- a/src/main/java/net/minecraft/server/World.java
++++ b/src/main/java/net/minecraft/server/World.java
+@@ -3010,6 +3010,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
+         return forcedchunk != null && forcedchunk.a().contains(ChunkCoordIntPair.a(i, j));
+     }
+ 
++    public boolean setForcedChunk(int i, int j, boolean flag) { return b(i, j, flag); } // Paper - OBFHELPER
+     public boolean b(int i, int j, boolean flag) {
+         String s = "chunks";
+         ForcedChunk forcedchunk = (ForcedChunk) this.a(this.worldProvider.getDimensionManager(), ForcedChunk::new, "chunks");
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+index 12c6d850d..55394e0c1 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+@@ -289,6 +289,18 @@ public class CraftChunk implements Chunk {
+         Preconditions.checkArgument(0 <= z && z <= 15, "z out of range (expected 0-15, got %s)", z);
+     }
+ 
++    // Paper start - Force-Loaded Chunk API
++    @Override
++    public boolean isForceLoaded() {
++        return getHandle().getWorld().isForcedChunk(this.x, this.z);
++    }
++
++    @Override
++    public void setForceLoaded(boolean force) {
++        getHandle().getWorld().setForcedChunk(this.x, this.z, force);
++    }
++    // Paper end
++
+     static {
+         Arrays.fill(emptySkyLight, (byte) 0xFF);
+     }
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+index 1ccf2a760..755d2632f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+@@ -609,6 +609,10 @@ public class CraftWorld implements World {
+     public boolean isChunkGenerated(int x, int z) {
+         return this.getHandle().getChunkProviderServer().isChunkGenerated(x, z);
+     }
++
++    public boolean isChunkForceLoaded(int x, int z) {
++        return this.isChunkGenerated(x, z) && this.getHandle().isForcedChunk(x, z);
++    }
+     // Paper end
+ 
+     public ChunkGenerator getGenerator() {
+-- 
+2.19.0.rc1
+