Move patches around
This commit is contained in:
MiniDigger | Martin
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 2 Apr 2020 02:37:57 -0400
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Subject: [PATCH] Optimize Collision to not load chunks
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The collision code takes an AABB and generates a cuboid of checks rather
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than a cylinder, so at high velocity this can generate a lot of chunk checks.
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Treat an unloaded chunk as a collision for entities, and also for players if
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the "prevent moving into unloaded chunks" setting is enabled.
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If that serting is not enabled, collisions will be ignored for players, since
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movement will load only the chunk the player enters anyways and avoids loading
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massive amounts of surrounding chunks due to large AABB lookups.
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diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/players/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
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@@ -0,0 +0,0 @@ import net.minecraft.server.MCUtil;
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import net.minecraft.server.MinecraftServer;
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import net.minecraft.server.PlayerAdvancements;
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import net.minecraft.server.ServerScoreboard;
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+import net.minecraft.server.level.ServerLevel;
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+import net.minecraft.server.level.ServerPlayer;
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+import net.minecraft.server.level.ServerPlayerGameMode;
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+import net.minecraft.server.level.TicketType;
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+import net.minecraft.server.network.ServerGamePacketListenerImpl;
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+import net.minecraft.server.network.ServerLoginPacketListenerImpl;
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+import net.minecraft.sounds.SoundEvents;
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+import net.minecraft.sounds.SoundSource;
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+import net.minecraft.stats.ServerStatsCounter;
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+import net.minecraft.stats.Stats;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.tags.Tag;
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import net.minecraft.util.Mth;
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import net.minecraft.world.effect.MobEffectInstance;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.EntityType;
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+import net.minecraft.world.level.ChunkPos;
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import net.minecraft.world.level.GameRules;
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import net.minecraft.world.level.GameType;
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import net.minecraft.world.level.Level;
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@@ -0,0 +0,0 @@ import io.papermc.paper.adventure.PaperAdventure; // Paper
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import com.google.common.base.Predicate;
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import com.google.common.collect.Iterables;
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import net.minecraft.server.dedicated.DedicatedServer;
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-import net.minecraft.server.level.ServerLevel;
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-import net.minecraft.server.level.ServerPlayer;
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-import net.minecraft.server.level.ServerPlayerGameMode;
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-import net.minecraft.server.network.ServerGamePacketListenerImpl;
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-import net.minecraft.server.network.ServerLoginPacketListenerImpl;
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-import net.minecraft.sounds.SoundEvents;
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-import net.minecraft.sounds.SoundSource;
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-import net.minecraft.stats.ServerStatsCounter;
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-import net.minecraft.stats.Stats;
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import org.bukkit.craftbukkit.CraftServer;
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import org.bukkit.craftbukkit.CraftWorld;
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@@ -0,0 +0,0 @@ public abstract class PlayerList {
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entityplayer1.forceSetPositionRotation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
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// CraftBukkit end
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+ worldserver1.getChunkSource().addRegionTicket(TicketType.POST_TELEPORT, new ChunkPos(location.getBlockX() >> 4, location.getBlockZ() >> 4), 1, entityplayer.getId()); // Paper
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while (avoidSuffocation && !worldserver1.noCollision(entityplayer1) && entityplayer1.getY() < 256.0D) {
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entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ());
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}
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -0,0 +0,0 @@ public abstract class Entity implements Nameable, CommandSource, net.minecraft.s
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private CraftEntity bukkitEntity;
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ChunkMap.TrackedEntity tracker; // Paper
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+ public boolean collisionLoadChunks = false; // Paper
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public Throwable addedToWorldStack; // Paper - entity debug
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public CraftEntity getBukkitEntity() {
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if (bukkitEntity == null) {
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diff --git a/src/main/java/net/minecraft/world/level/CollisionGetter.java b/src/main/java/net/minecraft/world/level/CollisionGetter.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/level/CollisionGetter.java
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+++ b/src/main/java/net/minecraft/world/level/CollisionGetter.java
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@@ -0,0 +0,0 @@ public interface CollisionGetter extends BlockGetter {
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}
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default boolean noCollision(@Nullable Entity entity, AABB axisalignedbb, Predicate<Entity> predicate) {
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+ try { if (entity != null) entity.collisionLoadChunks = true; // Paper
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return this.getCollisions(entity, axisalignedbb, predicate).allMatch(VoxelShape::isEmpty);
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+ } finally { if (entity != null) entity.collisionLoadChunks = false; } // Paper
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}
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Stream<VoxelShape> getEntityCollisions(@Nullable Entity entity, AABB axisalignedbb, Predicate<Entity> predicate);
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diff --git a/src/main/java/net/minecraft/world/level/CollisionSpliterator.java b/src/main/java/net/minecraft/world/level/CollisionSpliterator.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/level/CollisionSpliterator.java
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+++ b/src/main/java/net/minecraft/world/level/CollisionSpliterator.java
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@@ -0,0 +0,0 @@ import java.util.function.Consumer;
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import javax.annotation.Nullable;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Cursor3D;
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+import net.minecraft.server.MCUtil;
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+import net.minecraft.server.level.ServerPlayer;
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+import net.minecraft.server.level.WorldGenRegion;
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import net.minecraft.util.Mth;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.level.block.Blocks;
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@@ -0,0 +0,0 @@ import net.minecraft.world.phys.shapes.VoxelShape;
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public class CollisionSpliterator extends AbstractSpliterator<VoxelShape> {
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@Nullable
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- private final Entity source;
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+ private final Entity source; final Entity getEntity() { return this.source; } // Paper - OBFHELPER
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private final AABB box;
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private final CollisionContext context;
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private final Cursor3D cursor;
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- private final BlockPos.MutableBlockPos pos;
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+ private final BlockPos.MutableBlockPos pos; final BlockPos.MutableBlockPos getMutablePos() { return this.pos; } // Paper - OBFHELPER
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private final VoxelShape entityShape;
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- private final CollisionGetter collisionGetter;
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+ private final CollisionGetter collisionGetter; final CollisionGetter getCollisionAccess() { return this.collisionGetter; } // Paper - OBFHELPER
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private boolean needsBorderCheck;
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private final BiPredicate<BlockState, BlockPos> predicate;
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@@ -0,0 +0,0 @@ public class CollisionSpliterator extends AbstractSpliterator<VoxelShape> {
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boolean collisionCheck(Consumer<? super VoxelShape> consumer) {
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while (true) {
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if (this.cursor.advance()) {
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- int i = this.cursor.nextX();
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- int j = this.cursor.nextY();
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- int k = this.cursor.nextZ();
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+ int i = this.cursor.nextX(); final int x = i;
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+ int j = this.cursor.nextY(); final int y = j;
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+ int k = this.cursor.nextZ(); final int z = k;
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int l = this.cursor.getNextType();
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if (l == 3) {
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continue;
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}
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- BlockGetter iblockaccess = this.getChunk(i, k);
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-
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- if (iblockaccess == null) {
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+ // Paper start - ensure we don't load chunks
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+ Entity entity = this.getEntity();
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+ BlockPos.MutableBlockPos blockposition_mutableblockposition = this.getMutablePos();
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+ boolean far = entity != null && MCUtil.distanceSq(entity.getX(), y, entity.getZ(), x, y, z) > 14;
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+ blockposition_mutableblockposition.setValues(x, y, z);
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+
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+ boolean isRegionLimited = this.getCollisionAccess() instanceof WorldGenRegion;
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+ BlockState iblockdata = isRegionLimited ? Blocks.VOID_AIR.defaultBlockState() : ((!far && entity instanceof ServerPlayer) || (entity != null && entity.collisionLoadChunks)
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+ ? this.getCollisionAccess().getBlockState(blockposition_mutableblockposition)
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+ : this.getCollisionAccess().getTypeIfLoaded(blockposition_mutableblockposition)
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+ );
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+
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+ if (iblockdata == null) {
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+ if (!(entity instanceof ServerPlayer) || entity.level.paperConfig.preventMovingIntoUnloadedChunks) {
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+ VoxelShape voxelshape3 = Shapes.of(far ? entity.getBoundingBox() : new AABB(new BlockPos(x, y, z)));
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+ consumer.accept(voxelshape3);
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+ return true;
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+ }
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continue;
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}
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-
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- this.pos.set(i, j, k);
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- BlockState iblockdata = iblockaccess.getBlockState(this.pos);
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+ // Paper - moved up
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+ // Paper end
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if (!this.predicate.test(iblockdata, this.pos) || l == 1 && !iblockdata.hasLargeCollisionShape() || l == 2 && !iblockdata.is(Blocks.MOVING_PISTON)) {
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continue;
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diff --git a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
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+++ b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
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@@ -0,0 +0,0 @@ public final class Shapes {
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if (k2 < 3) {
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blockposition_mutableblockposition.set(enumaxiscycle1, i2, j2, l1);
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- BlockState iblockdata = world.getBlockState(blockposition_mutableblockposition);
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+ BlockState iblockdata = world.getTypeIfLoaded(blockposition_mutableblockposition); // Paper
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+ if (iblockdata == null) return 0.0D; // Paper
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if ((k2 != 1 || iblockdata.hasLargeCollisionShape()) && (k2 != 2 || iblockdata.is(Blocks.MOVING_PISTON))) {
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initial = iblockdata.getCollisionShape((BlockGetter) world, blockposition_mutableblockposition, context).collide(enumdirection_enumaxis2, box.move((double) (-blockposition_mutableblockposition.getX()), (double) (-blockposition_mutableblockposition.getY()), (double) (-blockposition_mutableblockposition.getZ())), initial);
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