From c56c68eed04866793c411e6dc5eeeabe2f73ace1 Mon Sep 17 00:00:00 2001 From: Aikar 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 807bd7fc..51cf7fd3 100644 --- a/src/main/java/org/bukkit/World.java +++ b/src/main/java/org/bukkit/World.java @@ -152,6 +152,352 @@ 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 { + public void onLoad(Chunk chunk); + + // backwards compat to old api + @Override + default void accept(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, 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(Location loc, 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(Block block, 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, java.util.function.Consumer 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, java.util.function.Consumer 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(Location loc, java.util.function.Consumer 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(Location loc, boolean gen, java.util.function.Consumer 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(Block block, java.util.function.Consumer 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(Block block, boolean gen, java.util.function.Consumer 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 + */ + public default java.util.concurrent.CompletableFuture getChunkAtAsync(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 + */ + public default java.util.concurrent.CompletableFuture getChunkAtAsync(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 + */ + public default java.util.concurrent.CompletableFuture getChunkAtAsync(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 + */ + public default java.util.concurrent.CompletableFuture getChunkAtAsync(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 + */ + public default java.util.concurrent.CompletableFuture 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 + */ + public java.util.concurrent.CompletableFuture 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 2dd7a03c..59787c47 100644 --- a/src/main/java/org/bukkit/entity/Entity.java +++ b/src/main/java/org/bukkit/entity/Entity.java @@ -135,6 +135,28 @@ public interface Entity extends Metadatable, CommandSender, Nameable { */ public boolean teleport(Entity destination, 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 + */ + public default java.util.concurrent.CompletableFuture teleportAsync(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 + */ + public default java.util.concurrent.CompletableFuture teleportAsync(Location loc, TeleportCause cause) { + java.util.concurrent.CompletableFuture 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 -- 2.21.0