From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 6 Jul 2020 20:46:50 -0700
Subject: [PATCH] Improve inlining for some hot BlockBehavior and FluidState
 methods


diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
index c7b6377aafd32f67eb8ba4dedd7cce5841b2d58d..e57e3a26b0fb856e1ab693df5783fe8b9bee9719 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
@@ -975,15 +975,15 @@ public abstract class BlockBehaviour implements FeatureElement {
             return this.shapeExceedsCube; // Paper - moved into shape cache init
         }
 
-        public boolean useShapeForLightOcclusion() {
+        public final boolean useShapeForLightOcclusion() { // Paper - Perf: Final for inlining
             return this.useShapeForLightOcclusion;
         }
 
-        public int getLightEmission() {
+        public final int getLightEmission() { // Paper - Perf: Final for inlining
             return this.lightEmission;
         }
 
-        public boolean isAir() {
+        public final boolean isAir() { // Paper - Perf: Final for inlining
             return this.isAir;
         }
 
@@ -1067,7 +1067,7 @@ public abstract class BlockBehaviour implements FeatureElement {
             }
         }
 
-        public boolean canOcclude() {
+        public final boolean canOcclude() { // Paper - Perf: Final for inlining
             return this.canOcclude;
         }
 
@@ -1275,11 +1275,11 @@ public abstract class BlockBehaviour implements FeatureElement {
             return this.getBlock().builtInRegistryHolder().is(key);
         }
 
-        public FluidState getFluidState() {
+        public final FluidState getFluidState() { // Paper - Perf: Final for inlining
             return this.fluidState;
         }
 
-        public boolean isRandomlyTicking() {
+        public final boolean isRandomlyTicking() { // Paper - Perf: Final for inlining
             return this.isRandomlyTicking;
         }
 
diff --git a/src/main/java/net/minecraft/world/level/material/FluidState.java b/src/main/java/net/minecraft/world/level/material/FluidState.java
index ea2a04e5298832177fac93568656ac45784d5eb6..c5d1e4e293d15831f9b550b9964dc190763956b6 100644
--- a/src/main/java/net/minecraft/world/level/material/FluidState.java
+++ b/src/main/java/net/minecraft/world/level/material/FluidState.java
@@ -25,9 +25,11 @@ public final class FluidState extends StateHolder<Fluid, FluidState> {
     public static final Codec<FluidState> CODEC = codec(BuiltInRegistries.FLUID.byNameCodec(), Fluid::defaultFluidState).stable();
     public static final int AMOUNT_MAX = 9;
     public static final int AMOUNT_FULL = 8;
+    protected final boolean isEmpty; // Paper - Perf: moved from isEmpty()
 
     public FluidState(Fluid fluid, ImmutableMap<Property<?>, Comparable<?>> propertiesMap, MapCodec<FluidState> codec) {
         super(fluid, propertiesMap, codec);
+        this.isEmpty = fluid.isEmpty(); // Paper - Perf: moved from isEmpty()
     }
 
     public Fluid getType() {
@@ -43,7 +45,7 @@ public final class FluidState extends StateHolder<Fluid, FluidState> {
     }
 
     public boolean isEmpty() {
-        return this.getType().isEmpty();
+        return this.isEmpty; // Paper - Perf: moved into constructor
     }
 
     public float getHeight(BlockGetter world, BlockPos pos) {