diff options
Diffstat (limited to 'patches/server/0989-Optimize-Collision-to-not-load-chunks.patch')
| -rw-r--r-- | patches/server/0989-Optimize-Collision-to-not-load-chunks.patch | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/patches/server/0989-Optimize-Collision-to-not-load-chunks.patch b/patches/server/0989-Optimize-Collision-to-not-load-chunks.patch new file mode 100644 index 0000000000..5b8c5a114c --- /dev/null +++ b/patches/server/0989-Optimize-Collision-to-not-load-chunks.patch @@ -0,0 +1,109 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Aikar <[email protected]> +Date: Thu, 2 Apr 2020 02:37:57 -0400 +Subject: [PATCH] Optimize Collision to not load chunks + +The collision code takes an AABB and generates a cuboid of checks rather +than a cylinder, so at high velocity this can generate a lot of chunk checks. + +Treat an unloaded chunk as a collision for entities, and also for players if +the "prevent moving into unloaded chunks" setting is enabled. + +If that serting is not enabled, collisions will be ignored for players, since +movement will load only the chunk the player enters anyways and avoids loading +massive amounts of surrounding chunks due to large AABB lookups. + +diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java +index 8f1a2de2a5542929f8a2fdd4d38de141eda985b2..29b35b8c0a6001d626e327a82eaff26d068660db 100644 +--- a/src/main/java/net/minecraft/server/players/PlayerList.java ++++ b/src/main/java/net/minecraft/server/players/PlayerList.java +@@ -934,6 +934,7 @@ public abstract class PlayerList { + entityplayer1.setShiftKeyDown(false); + entityplayer1.forceSetPositionRotation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch()); + ++ worldserver1.getChunkSource().addRegionTicket(net.minecraft.server.level.TicketType.POST_TELEPORT, new net.minecraft.world.level.ChunkPos(location.getBlockX() >> 4, location.getBlockZ() >> 4), 1, entityplayer.getId()); // Paper + while (avoidSuffocation && !worldserver1.noCollision((Entity) entityplayer1) && entityplayer1.getY() < (double) worldserver1.getMaxBuildHeight()) { + // CraftBukkit end + entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ()); +diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java +index 98816b5f759aa72198fb259b4df79a2cd6ee567c..8619482c85f22fb6d30e847099c59da4d0abaf6d 100644 +--- a/src/main/java/net/minecraft/world/entity/Entity.java ++++ b/src/main/java/net/minecraft/world/entity/Entity.java +@@ -244,6 +244,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess + // Paper end - Share random for entities to make them more random + public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper - Entity#getEntitySpawnReason + ++ public boolean collisionLoadChunks = false; // Paper + private CraftEntity bukkitEntity; + + public @org.jetbrains.annotations.Nullable net.minecraft.server.level.ChunkMap.TrackedEntity tracker; // Paper +diff --git a/src/main/java/net/minecraft/world/level/BlockCollisions.java b/src/main/java/net/minecraft/world/level/BlockCollisions.java +index 1c10835b59aaefa3a65ff64f784620bdc54ddcdc..cd89623a44f02d7db77f0d0f87545cf80841f403 100644 +--- a/src/main/java/net/minecraft/world/level/BlockCollisions.java ++++ b/src/main/java/net/minecraft/world/level/BlockCollisions.java +@@ -66,18 +66,37 @@ public class BlockCollisions<T> extends AbstractIterator<T> { + @Override + protected T computeNext() { + while (this.cursor.advance()) { +- int i = this.cursor.nextX(); +- int j = this.cursor.nextY(); +- int k = this.cursor.nextZ(); ++ int i = this.cursor.nextX(); final int x = i; // Paper - OBFHELPER ++ int j = this.cursor.nextY(); final int y = j; // Paper - OBFHELPER ++ int k = this.cursor.nextZ(); final int z = k; // Paper - OBFHELPER + int l = this.cursor.getNextType(); + if (l != 3) { +- BlockGetter blockGetter = this.getChunk(i, k); +- if (blockGetter != null) { +- this.pos.set(i, j, k); +- BlockState blockState = blockGetter.getBlockState(this.pos); +- if ((!this.onlySuffocatingBlocks || blockState.isSuffocating(blockGetter, this.pos)) +- && (l != 1 || blockState.hasLargeCollisionShape()) +- && (l != 2 || blockState.is(Blocks.MOVING_PISTON))) { ++ // Paper start - ensure we don't load chunks ++ // BlockGetter blockGetter = this.getChunk(i, k); ++ if (true) { ++ final @Nullable Entity source = this.context instanceof net.minecraft.world.phys.shapes.EntityCollisionContext entityContext ? entityContext.getEntity() : null; ++ boolean far = source != null && io.papermc.paper.util.MCUtil.distanceSq(source.getX(), y, source.getZ(), x, y, z) > 14; ++ this.pos.set(x, y, z); ++ BlockState blockState; ++ if (this.collisionGetter instanceof net.minecraft.server.level.WorldGenRegion) { ++ BlockGetter blockGetter = this.getChunk(x, z); ++ if (blockGetter == null) { ++ continue; ++ } ++ blockState = blockGetter.getBlockState(this.pos); ++ } else if ((!far && source instanceof net.minecraft.server.level.ServerPlayer) || (source != null && source.collisionLoadChunks)) { ++ blockState = this.collisionGetter.getBlockState(this.pos); ++ } else { ++ blockState = this.collisionGetter.getBlockStateIfLoaded(this.pos); ++ } ++ if (blockState == null) { ++ if (!(source instanceof net.minecraft.server.level.ServerPlayer) || source.level().paperConfig().chunks.preventMovingIntoUnloadedChunks) { ++ return this.resultProvider.apply(new BlockPos.MutableBlockPos(x, y, z), Shapes.create(far ? source.getBoundingBox() : new AABB(new BlockPos(x, y, z)))); ++ } ++ continue; ++ } ++ if (/*(!this.onlySuffocatingBlocks || blockState.isSuffocating(blockGetter, this.pos)) &&*/ (l != 1 || blockState.hasLargeCollisionShape()) && (l != 2 || blockState.is(Blocks.MOVING_PISTON))) { // Paper - onlySuffocatingBlocks is only true on the client, so we don't care about it here ++ // Paper end + VoxelShape voxelShape = blockState.getCollisionShape(this.collisionGetter, this.pos, this.context); + if (voxelShape == Shapes.block()) { + if (this.box.intersects((double)i, (double)j, (double)k, (double)i + 1.0, (double)j + 1.0, (double)k + 1.0)) { +diff --git a/src/main/java/net/minecraft/world/level/CollisionGetter.java b/src/main/java/net/minecraft/world/level/CollisionGetter.java +index e57cb7fe53e915d24246e44c7f49971f5b2ab2cf..1ad0c976c6e2d6d31397dff850a9de7c16d16fba 100644 +--- a/src/main/java/net/minecraft/world/level/CollisionGetter.java ++++ b/src/main/java/net/minecraft/world/level/CollisionGetter.java +@@ -44,11 +44,13 @@ public interface CollisionGetter extends BlockGetter { + } + + default boolean noCollision(@Nullable Entity entity, AABB box) { ++ try { if (entity != null) entity.collisionLoadChunks = true; // Paper + for (VoxelShape voxelShape : this.getBlockCollisions(entity, box)) { + if (!voxelShape.isEmpty()) { + return false; + } + } ++ } finally { if (entity != null) entity.collisionLoadChunks = false; } // Paper + + if (!this.getEntityCollisions(entity, box).isEmpty()) { + return false; |