89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
181 Zeilen
9.4 KiB
Diff
181 Zeilen
9.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 6 Apr 2020 17:53:29 -0700
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Subject: [PATCH] Optimize GoalSelector Goal.Flag Set operations
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Optimise the stream.anyMatch statement to move to a bitset
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where we can replace the call with a single bitwise operation.
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diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java b/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
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index 16f9a98b8a939e5ca7e2dc04f87134a7ed66736b..dd423302b1baa64ef86ded87a29659342e28c142 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
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@@ -4,7 +4,16 @@ import java.util.EnumSet;
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import net.minecraft.util.Mth;
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public abstract class Goal {
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- private final EnumSet<Goal.Flag> flags = EnumSet.noneOf(Goal.Flag.class);
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+ private final EnumSet<Goal.Flag> flags = EnumSet.noneOf(Goal.Flag.class); // Paper unused, but dummy to prevent plugins from crashing as hard. Theyll need to support paper in a special case if this is super important, but really doesn't seem like it would be.
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+ private final com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<net.minecraft.world.entity.ai.goal.Goal.Flag> goalTypes = new com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<>(Goal.Flag.class); // Paper - remove streams from pathfindergoalselector
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+
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+ // Paper start - remove streams from pathfindergoalselector; make sure types are not empty
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+ public Goal() {
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+ if (this.goalTypes.size() == 0) {
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+ this.goalTypes.add(Flag.UNKNOWN_BEHAVIOR);
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+ }
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+ }
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+ // Paper end - remove streams from pathfindergoalselector
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public abstract boolean canUse();
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@@ -30,8 +39,13 @@ public abstract class Goal {
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}
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public void setFlags(EnumSet<Goal.Flag> controls) {
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- this.flags.clear();
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- this.flags.addAll(controls);
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+ // Paper start - remove streams from pathfindergoalselector
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+ this.goalTypes.clear();
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+ this.goalTypes.addAll(controls);
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+ if (this.goalTypes.size() == 0) {
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+ this.goalTypes.add(Flag.UNKNOWN_BEHAVIOR);
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+ }
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+ // Paper end - remove streams from pathfindergoalselector
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}
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@Override
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@@ -39,8 +53,10 @@ public abstract class Goal {
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return this.getClass().getSimpleName();
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}
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- public EnumSet<Goal.Flag> getFlags() {
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- return this.flags;
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+ // Paper start - remove streams from pathfindergoalselector
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+ public com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
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+ return this.goalTypes;
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+ // Paper end - remove streams from pathfindergoalselector
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}
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protected int adjustedTickDelay(int ticks) {
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diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
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index e5995d0db5dcfba59a873ff439601894fdacd556..676f5485a4ca9252e911213dcda8d51776b637b6 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
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@@ -30,10 +30,12 @@ public class GoalSelector {
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private final Map<Goal.Flag, WrappedGoal> lockedFlags = new EnumMap<>(Goal.Flag.class);
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private final Set<WrappedGoal> availableGoals = Sets.newLinkedHashSet();
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private final Supplier<ProfilerFiller> profiler;
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- private final EnumSet<Goal.Flag> disabledFlags = EnumSet.noneOf(Goal.Flag.class);
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+ private final EnumSet<Goal.Flag> disabledFlags = EnumSet.noneOf(Goal.Flag.class); // Paper unused, but dummy to prevent plugins from crashing as hard. Theyll need to support paper in a special case if this is super important, but really doesn't seem like it would be.
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+ private final com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<net.minecraft.world.entity.ai.goal.Goal.Flag> goalTypes = new com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<>(Goal.Flag.class); // Paper - remove streams from pathfindergoalselector
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private int tickCount;
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private int newGoalRate = 3;
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private int curRate;
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+ private static final Goal.Flag[] GOAL_FLAG_VALUES = Goal.Flag.values(); // Paper - remove streams from pathfindergoalselector
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public GoalSelector(Supplier<ProfilerFiller> profiler) {
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this.profiler = profiler;
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@@ -65,26 +67,32 @@ public class GoalSelector {
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}
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// Paper end
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public void removeGoal(Goal goal) {
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- this.availableGoals.stream().filter((wrappedGoal) -> {
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- return wrappedGoal.getGoal() == goal;
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- }).filter(WrappedGoal::isRunning).forEach(WrappedGoal::stop);
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- this.availableGoals.removeIf((wrappedGoal) -> {
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- return wrappedGoal.getGoal() == goal;
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- });
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- }
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-
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- private static boolean goalContainsAnyFlags(WrappedGoal goal, EnumSet<Goal.Flag> controls) {
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- for(Goal.Flag flag : goal.getFlags()) {
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- if (controls.contains(flag)) {
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- return true;
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+ // Paper start - remove streams from pathfindergoalselector
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+ for (java.util.Iterator<WrappedGoal> iterator = this.availableGoals.iterator(); iterator.hasNext();) {
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+ WrappedGoal goalWrapped = iterator.next();
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+ if (goalWrapped.getGoal() != goal) {
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+ continue;
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}
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+ if (goalWrapped.isRunning()) {
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+ goalWrapped.stop();
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+ }
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+ iterator.remove();
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}
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+ // Paper end - remove streams from pathfindergoalselector
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+ }
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- return false;
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+ private static boolean goalContainsAnyFlags(WrappedGoal goal, com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> controls) {
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+ return goal.getFlags().hasCommonElements(controls); // Paper
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}
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private static boolean goalCanBeReplacedForAllFlags(WrappedGoal goal, Map<Goal.Flag, WrappedGoal> goalsByControl) {
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- for(Goal.Flag flag : goal.getFlags()) {
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+ // Paper start
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+ long flagIterator = goal.getFlags().getBackingSet();
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+ int wrappedGoalSize = goal.getFlags().size();
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+ for (int i = 0; i < wrappedGoalSize; ++i) {
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+ final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
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+ flagIterator ^= io.papermc.paper.util.IntegerUtil.getTrailingBit(flagIterator);
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+ // Paper end
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if (!goalsByControl.getOrDefault(flag, NO_GOAL).canBeReplacedBy(goal)) {
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return false;
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}
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@@ -98,7 +106,7 @@ public class GoalSelector {
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profilerFiller.push("goalCleanup");
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for(WrappedGoal wrappedGoal : this.availableGoals) {
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- if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.disabledFlags) || !wrappedGoal.canContinueToUse())) {
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+ if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.goalTypes) || !wrappedGoal.canContinueToUse())) {
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wrappedGoal.stop();
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}
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}
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@@ -116,8 +124,14 @@ public class GoalSelector {
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profilerFiller.push("goalUpdate");
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for(WrappedGoal wrappedGoal2 : this.availableGoals) {
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- if (!wrappedGoal2.isRunning() && !goalContainsAnyFlags(wrappedGoal2, this.disabledFlags) && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags) && wrappedGoal2.canUse()) {
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- for(Goal.Flag flag : wrappedGoal2.getFlags()) {
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+ // Paper start
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+ if (!wrappedGoal2.isRunning() && !goalContainsAnyFlags(wrappedGoal2, this.goalTypes) && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags) && wrappedGoal2.canUse()) {
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+ long flagIterator = wrappedGoal2.getFlags().getBackingSet();
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+ int wrappedGoalSize = wrappedGoal2.getFlags().size();
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+ for (int i = 0; i < wrappedGoalSize; ++i) {
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+ final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
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+ flagIterator ^= io.papermc.paper.util.IntegerUtil.getTrailingBit(flagIterator);
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+ // Paper end
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WrappedGoal wrappedGoal3 = this.lockedFlags.getOrDefault(flag, NO_GOAL);
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wrappedGoal3.stop();
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this.lockedFlags.put(flag, wrappedGoal2);
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@@ -157,11 +171,11 @@ public class GoalSelector {
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}
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public void disableControlFlag(Goal.Flag control) {
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- this.disabledFlags.add(control);
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+ this.goalTypes.add(control); // Paper - remove streams from pathfindergoalselector
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}
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public void enableControlFlag(Goal.Flag control) {
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- this.disabledFlags.remove(control);
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+ this.goalTypes.remove(control); // Paper - remove streams from pathfindergoalselector
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}
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public void setControlFlag(Goal.Flag control, boolean enabled) {
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diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
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index 6665ce5f48316e626907e6937d5ef1bc398a7ebd..51deb4455cac055ffa455e4f34aa30858d2fb448 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
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@@ -69,8 +69,10 @@ public class WrappedGoal extends Goal {
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}
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@Override
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- public EnumSet<Goal.Flag> getFlags() {
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+ // Paper start - remove streams from pathfindergoalselector
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+ public com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
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return this.goal.getFlags();
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+ // Paper end - remove streams from pathfindergoalselector
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}
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public boolean isRunning() {
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