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papermc/Spigot-API-Patches/0133-Async-Chunks-API.patch
Spottedleaf 19de9af63c 1.15.2 update (#2887) 
Functional GUI fix added by billygalbreath
2020-01-21 20:02:07 -06:00

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From b58f65b305f5d0822f5802442a400a92f1ef7504 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 29 Feb 2016 17:43:33 -0600
Subject: [PATCH] Async Chunks API
Adds API's to load or generate chunks asynchronously.
Also adds utility methods to Entity to teleport asynchronously.
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index abd469b5..310041ae 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -169,6 +169,358 @@ public interface World extends PluginMessageRecipient, Metadatable {
public default Chunk getChunkAt(long chunkKey) {
return getChunkAt((int) chunkKey, (int) (chunkKey >> 32));
}
+
+ /**
+ * This is the Legacy API before Java 8 was supported. Java 8 Consumer is provided,
+ * as well as future support
+ *
+ * Used by {@link World#getChunkAtAsync(Location,ChunkLoadCallback)} methods
+ * to request a {@link Chunk} to be loaded, with this callback receiving
+ * the chunk when it is finished.
+ *
+ * This callback will be executed on synchronously on the main thread.
+ *
+ * Timing and order this callback is fired is intentionally not defined and
+ * and subject to change.
+ *
+ * @deprecated Use either the Future or the Consumer based methods
+ */
+ @Deprecated
+ public static interface ChunkLoadCallback extends java.util.function.Consumer<Chunk> {
+ public void onLoad(@NotNull Chunk chunk);
+
+ // backwards compat to old api
+ @Override
+ default void accept(@NotNull Chunk chunk) {
+ onLoad(chunk);
+ }
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link ChunkLoadCallback} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @deprecated Use either the Future or the Consumer based methods
+ * @param x Chunk X-coordinate of the chunk - (world coordinate / 16)
+ * @param z Chunk Z-coordinate of the chunk - (world coordinate / 16)
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ @Deprecated
+ public default void getChunkAtAsync(int x, int z, @NotNull ChunkLoadCallback cb) {
+ getChunkAtAsync(x, z, true).thenAccept(cb::onLoad);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given {@link Location}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link ChunkLoadCallback} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @deprecated Use either the Future or the Consumer based methods
+ * @param loc Location of the chunk
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ @Deprecated
+ public default void getChunkAtAsync(@NotNull Location loc, @NotNull ChunkLoadCallback cb) {
+ getChunkAtAsync(loc, true).thenAccept(cb::onLoad);
+ }
+
+ /**
+ * Requests {@link Chunk} to be loaded that contains the given {@link Block}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link ChunkLoadCallback} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @deprecated Use either the Future or the Consumer based methods
+ * @param block Block to get the containing chunk from
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ @Deprecated
+ public default void getChunkAtAsync(@NotNull Block block, @NotNull ChunkLoadCallback cb) {
+ getChunkAtAsync(block, true).thenAccept(cb::onLoad);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param x Chunk X-coordinate of the chunk - (world coordinate / 16)
+ * @param z Chunk Z-coordinate of the chunk - (world coordinate / 16)
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(int x, int z, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync(x, z, true).thenAccept(cb);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param x Chunk X-coordinate of the chunk - (world coordinate / 16)
+ * @param z Chunk Z-coordinate of the chunk - (world coordinate / 16)
+ * @param gen Should we generate a chunk if it doesn't exists or not
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(int x, int z, boolean gen, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync(x, z, gen).thenAccept(cb);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given {@link Location}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param loc Location of the chunk
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(@NotNull Location loc, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync((int)Math.floor(loc.getX()) >> 4, (int)Math.floor(loc.getZ()) >> 4, true, cb);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given {@link Location}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param loc Location of the chunk
+ * @param gen Should the chunk generate
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(@NotNull Location loc, boolean gen, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync((int)Math.floor(loc.getX()) >> 4, (int)Math.floor(loc.getZ()) >> 4, gen, cb);
+ }
+
+ /**
+ * Requests {@link Chunk} to be loaded that contains the given {@link Block}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param block Block to get the containing chunk from
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(@NotNull Block block, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync(block.getX() >> 4, block.getZ() >> 4, true, cb);
+ }
+
+ /**
+ * Requests {@link Chunk} to be loaded that contains the given {@link Block}
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The {@link java.util.function.Consumer} will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param block Block to get the containing chunk from
+ * @param gen Should the chunk generate
+ * @param cb Callback to receive the chunk when it is loaded.
+ * will be executed synchronously
+ */
+ public default void getChunkAtAsync(@NotNull Block block, boolean gen, @NotNull java.util.function.Consumer<Chunk> cb) {
+ getChunkAtAsync(block.getX() >> 4, block.getZ() >> 4, gen, cb);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ * @param loc Location to load the corresponding chunk from
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(@NotNull Location loc) {
+ return getChunkAtAsync((int)Math.floor(loc.getX()) >> 4, (int)Math.floor(loc.getZ()) >> 4, true);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ * @param loc Location to load the corresponding chunk from
+ * @param gen Should the chunk generate
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(@NotNull Location loc, boolean gen) {
+ return getChunkAtAsync((int)Math.floor(loc.getX()) >> 4, (int)Math.floor(loc.getZ()) >> 4, gen);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ * @param block Block to load the corresponding chunk from
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(@NotNull Block block) {
+ return getChunkAtAsync(block.getX() >> 4, block.getZ() >> 4, true);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ * @param block Block to load the corresponding chunk from
+ * @param gen Should the chunk generate
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(@NotNull Block block, boolean gen) {
+ return getChunkAtAsync(block.getX() >> 4, block.getZ() >> 4, gen);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param x X Coord
+ * @param z Z Coord
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(int x, int z) {
+ return getChunkAtAsync(x, z, true);
+ }
+
+ /**
+ * Requests a {@link Chunk} to be loaded at the given coordinates
+ *
+ * This method makes no guarantee on how fast the chunk will load,
+ * and will return the chunk to the callback at a later time.
+ *
+ * You should use this method if you need a chunk but do not need it
+ * immediately, and you wish to let the server control the speed
+ * of chunk loads, keeping performance in mind.
+ *
+ * The future will always be executed synchronously
+ * on the main Server Thread.
+ *
+ * @param x Chunk X-coordinate of the chunk - (world coordinate / 16)
+ * @param z Chunk Z-coordinate of the chunk - (world coordinate / 16)
+ * @param gen Should we generate a chunk if it doesn't exists or not
+ * @return Future that will resolve when the chunk is loaded
+ */
+ @NotNull
+ public java.util.concurrent.CompletableFuture<Chunk> getChunkAtAsync(int x, int z, boolean gen);
// Paper end
/**
diff --git a/src/main/java/org/bukkit/entity/Entity.java b/src/main/java/org/bukkit/entity/Entity.java
index 04365232..83e02aea 100644
--- a/src/main/java/org/bukkit/entity/Entity.java
+++ b/src/main/java/org/bukkit/entity/Entity.java
@@ -155,6 +155,30 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
*/
public boolean teleport(@NotNull Entity destination, @NotNull TeleportCause cause);
+ // Paper start
+ /**
+ * Loads/Generates(in 1.13+) the Chunk asynchronously, and then teleports the entity when the chunk is ready.
+ * @param loc Location to teleport to
+ * @return A future that will be completed with the result of the teleport
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Boolean> teleportAsync(@NotNull Location loc) {
+ return teleportAsync(loc, TeleportCause.PLUGIN);
+ }
+ /**
+ * Loads/Generates(in 1.13+) the Chunk asynchronously, and then teleports the entity when the chunk is ready.
+ * @param loc Location to teleport to
+ * @param cause Reason for teleport
+ * @return A future that will be completed with the result of the teleport
+ */
+ @NotNull
+ public default java.util.concurrent.CompletableFuture<Boolean> teleportAsync(@NotNull Location loc, @NotNull TeleportCause cause) {
+ java.util.concurrent.CompletableFuture<Boolean> future = new java.util.concurrent.CompletableFuture<>();
+ loc.getWorld().getChunkAtAsync(loc).thenAccept((chunk) -> future.complete(teleport(loc, cause)));
+ return future;
+ }
+ // Paper end
+
/**
* Returns a list of entities within a bounding box centered around this
* entity
--
2.25.0.windows.1
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