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PaperMC/patches/server/0995-Optimize-GoalSelector-Goal.Flag-Set-operations.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 6 Apr 2020 17:53:29 -0700
Subject: [PATCH] Optimize GoalSelector Goal.Flag Set operations
Optimise the stream.anyMatch statement to move to a bitset
where we can replace the call with a single bitwise operation.
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
index 16f9a98b8a939e5ca7e2dc04f87134a7ed66736b..dd423302b1baa64ef86ded87a29659342e28c142 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
@@ -4,7 +4,16 @@ import java.util.EnumSet;
import net.minecraft.util.Mth;
public abstract class Goal {
- private final EnumSet<Goal.Flag> flags = EnumSet.noneOf(Goal.Flag.class);
+ 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.
+ 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
+
+ // Paper start - remove streams from pathfindergoalselector; make sure types are not empty
+ public Goal() {
+ if (this.goalTypes.size() == 0) {
+ this.goalTypes.add(Flag.UNKNOWN_BEHAVIOR);
+ }
+ }
+ // Paper end - remove streams from pathfindergoalselector
public abstract boolean canUse();
@@ -30,8 +39,13 @@ public abstract class Goal {
}
public void setFlags(EnumSet<Goal.Flag> controls) {
- this.flags.clear();
- this.flags.addAll(controls);
+ // Paper start - remove streams from pathfindergoalselector
+ this.goalTypes.clear();
+ this.goalTypes.addAll(controls);
+ if (this.goalTypes.size() == 0) {
+ this.goalTypes.add(Flag.UNKNOWN_BEHAVIOR);
+ }
+ // Paper end - remove streams from pathfindergoalselector
}
@Override
@@ -39,8 +53,10 @@ public abstract class Goal {
return this.getClass().getSimpleName();
}
- public EnumSet<Goal.Flag> getFlags() {
- return this.flags;
+ // Paper start - remove streams from pathfindergoalselector
+ public com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
+ return this.goalTypes;
+ // Paper end - remove streams from pathfindergoalselector
}
protected int adjustedTickDelay(int ticks) {
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
index 074ef807258139f818e30494126585262c2f33c0..74d4f653d5c7f1923c59019effd78337402f7025 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
@@ -25,7 +25,8 @@ public class GoalSelector {
private final Map<Goal.Flag, WrappedGoal> lockedFlags = new EnumMap<>(Goal.Flag.class);
private final Set<WrappedGoal> availableGoals = new ObjectLinkedOpenHashSet<>();
private final Supplier<ProfilerFiller> profiler;
- private final EnumSet<Goal.Flag> disabledFlags = EnumSet.noneOf(Goal.Flag.class);
+ private static final Goal.Flag[] GOAL_FLAG_VALUES = Goal.Flag.values(); // Paper - remove streams from pathfindergoalselector
+ 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
private int curRate;
public GoalSelector(Supplier<ProfilerFiller> profiler) {
@@ -65,18 +66,18 @@ public class GoalSelector {
this.availableGoals.removeIf(wrappedGoalx -> wrappedGoalx.getGoal() == goal);
}
- private static boolean goalContainsAnyFlags(WrappedGoal goal, EnumSet<Goal.Flag> controls) {
- for (Goal.Flag flag : goal.getFlags()) {
- if (controls.contains(flag)) {
- return true;
- }
- }
-
- return false;
+ // Paper start
+ private static boolean goalContainsAnyFlags(WrappedGoal goal, com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> controls) {
+ return goal.getFlags().hasCommonElements(controls);
}
private static boolean goalCanBeReplacedForAllFlags(WrappedGoal goal, Map<Goal.Flag, WrappedGoal> goalsByControl) {
- for (Goal.Flag flag : goal.getFlags()) {
+ long flagIterator = goal.getFlags().getBackingSet();
+ int wrappedGoalSize = goal.getFlags().size();
+ for (int i = 0; i < wrappedGoalSize; ++i) {
+ final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
+ flagIterator ^= io.papermc.paper.util.IntegerUtil.getTrailingBit(flagIterator);
+ // Paper end
if (!goalsByControl.getOrDefault(flag, NO_GOAL).canBeReplacedBy(goal)) {
return false;
}
@@ -90,7 +91,7 @@ public class GoalSelector {
profilerFiller.push("goalCleanup");
for (WrappedGoal wrappedGoal : this.availableGoals) {
- if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.disabledFlags) || !wrappedGoal.canContinueToUse())) {
+ if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.goalTypes) || !wrappedGoal.canContinueToUse())) { // Paper - Perf: optimize goal types by removing streams
wrappedGoal.stop();
}
}
@@ -100,11 +101,14 @@ public class GoalSelector {
profilerFiller.push("goalUpdate");
for (WrappedGoal wrappedGoal2 : this.availableGoals) {
- if (!wrappedGoal2.isRunning()
- && !goalContainsAnyFlags(wrappedGoal2, this.disabledFlags)
- && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags)
- && wrappedGoal2.canUse()) {
- for (Goal.Flag flag : wrappedGoal2.getFlags()) {
+ // Paper start
+ if (!wrappedGoal2.isRunning() && !goalContainsAnyFlags(wrappedGoal2, this.goalTypes) && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags) && wrappedGoal2.canUse()) {
+ long flagIterator = wrappedGoal2.getFlags().getBackingSet();
+ int wrappedGoalSize = wrappedGoal2.getFlags().size();
+ for (int i = 0; i < wrappedGoalSize; ++i) {
+ final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
+ flagIterator ^= io.papermc.paper.util.IntegerUtil.getTrailingBit(flagIterator);
+ // Paper end
WrappedGoal wrappedGoal3 = this.lockedFlags.getOrDefault(flag, NO_GOAL);
wrappedGoal3.stop();
this.lockedFlags.put(flag, wrappedGoal2);
@@ -136,11 +140,11 @@ public class GoalSelector {
}
public void disableControlFlag(Goal.Flag control) {
- this.disabledFlags.add(control);
+ this.goalTypes.add(control); // Paper - remove streams from pathfindergoalselector
}
public void enableControlFlag(Goal.Flag control) {
- this.disabledFlags.remove(control);
+ this.goalTypes.remove(control); // Paper - remove streams from pathfindergoalselector
}
public void setControlFlag(Goal.Flag control, boolean enabled) {
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
index b02d3deb550830245c8945ef17d3073ea930fdda..65ccdbaa5230c02d44a5959bca0f6fc30237a6fd 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
@@ -69,8 +69,10 @@ public class WrappedGoal extends Goal {
}
@Override
- public EnumSet<Goal.Flag> getFlags() {
+ // Paper start - remove streams from pathfindergoalselector
+ public com.destroystokyo.paper.util.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
return this.goal.getFlags();
+ // Paper end - remove streams from pathfindergoalselector
}
public boolean isRunning() {
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