From 810b13008981b065074f558ab5e3e406504f9c9a Mon Sep 17 00:00:00 2001
From: Brokkonaut <hannos17@gmx.de>
Date: Tue, 31 Oct 2017 03:26:18 +0100
Subject: [PATCH] Send attack SoundEffects only to players who can see the
 attacker


diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
index 96e3d20e3..4aa8e85ab 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -992,6 +992,15 @@ public abstract class EntityHuman extends EntityLiving {
         this.k = 0;
     }
 
+    // Paper start - send SoundEffect to everyone who can see fromEntity
+    private static void sendSoundEffect(EntityHuman fromEntity, double x, double y, double z, SoundEffect soundEffect, SoundCategory soundCategory, float volume, float pitch) {
+        fromEntity.world.sendSoundEffect(fromEntity, x, y, z, soundEffect, soundCategory, volume, pitch); // This will not send the effect to the entity himself
+        if (fromEntity instanceof EntityPlayer) {
+            ((EntityPlayer) fromEntity).playerConnection.sendPacket(new PacketPlayOutNamedSoundEffect(soundEffect, soundCategory, x, y, z, volume, pitch));
+        }
+    }
+    // Paper end
+
     public void attack(Entity entity) {
         if (entity.bk()) {
             if (!entity.t(this)) {
@@ -1016,7 +1025,7 @@ public abstract class EntityHuman extends EntityLiving {
                     int i = b0 + EnchantmentManager.b((EntityLiving) this);
 
                     if (this.isSprinting() && flag) {
-                        this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_KNOCKBACK, this.bV(), 1.0F, 1.0F);
+                        sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_KNOCKBACK, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                         ++i;
                         flag1 = true;
                     }
@@ -1094,7 +1103,7 @@ public abstract class EntityHuman extends EntityLiving {
                                 }
                             }
 
-                            this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_SWEEP, this.bV(), 1.0F, 1.0F);
+                            sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_SWEEP, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             this.dl();
                         }
 
@@ -1124,15 +1133,15 @@ public abstract class EntityHuman extends EntityLiving {
                         }
 
                         if (flag2) {
-                            this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_CRIT, this.bV(), 1.0F, 1.0F);
+                            sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_CRIT, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             this.a(entity);
                         }
 
                         if (!flag2 && !flag3) {
                             if (flag) {
-                                this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_STRONG, this.bV(), 1.0F, 1.0F);
+                                sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_STRONG, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             } else {
-                                this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_WEAK, this.bV(), 1.0F, 1.0F);
+                                sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_WEAK, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             }
                         }
 
@@ -1188,7 +1197,7 @@ public abstract class EntityHuman extends EntityLiving {
 
                         this.applyExhaustion(world.spigotConfig.combatExhaustion); // Spigot - Change to use configurable value
                     } else {
-                        this.world.a((EntityHuman) null, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_NODAMAGE, this.bV(), 1.0F, 1.0F);
+                        sendSoundEffect(this, this.locX, this.locY, this.locZ, SoundEffects.ENTITY_PLAYER_ATTACK_NODAMAGE, this.bV(), 1.0F, 1.0F); // Paper - send while respecting visibility
                         if (flag4) {
                             entity.extinguish();
                         }
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 44ed34174..c1ede0651 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -954,6 +954,12 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
         this.a(entityhuman, (double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 0.5D, (double) blockposition.getZ() + 0.5D, soundeffect, soundcategory, f, f1);
     }
 
+    // Paper start - OBFHELPER
+    public final void sendSoundEffect(@Nullable EntityHuman fromEntity, double x, double y, double z, SoundEffect soundeffect, SoundCategory soundcategory, float volume, float pitch) {
+        this.a(fromEntity, x, y, z, soundeffect, soundcategory, volume, pitch);
+    }
+    // Paper end
+
     public void a(@Nullable EntityHuman entityhuman, double d0, double d1, double d2, SoundEffect soundeffect, SoundCategory soundcategory, float f, float f1) {
         for (int i = 0; i < this.v.size(); ++i) {
             ((IWorldAccess) this.v.get(i)).a(entityhuman, soundeffect, soundcategory, d0, d1, d2, f, f1);
-- 
2.20.0