From 0000000000000000000000000000000000000000 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 ca33de2d305487f0f2f50e14f5878c05e1c9845c..c21d5e87f5ce7f9193d75848bfc89dc294bb8733 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -1030,7 +1030,7 @@ public abstract class EntityHuman extends EntityLiving {
                     int i = b0 + EnchantmentManager.b((EntityLiving) this);
 
                     if (this.isSprinting() && flag) {
-                        this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_KNOCKBACK, this.getSoundCategory(), 1.0F, 1.0F);
+                        sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_KNOCKBACK, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                         ++i;
                         flag1 = true;
                     }
@@ -1105,7 +1105,7 @@ public abstract class EntityHuman extends EntityLiving {
                                 }
                             }
 
-                            this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_SWEEP, this.getSoundCategory(), 1.0F, 1.0F);
+                            sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_SWEEP, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             this.ex();
                         }
 
@@ -1133,15 +1133,15 @@ public abstract class EntityHuman extends EntityLiving {
                         }
 
                         if (flag2) {
-                            this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_CRIT, this.getSoundCategory(), 1.0F, 1.0F);
+                            sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_CRIT, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             this.a(entity);
                         }
 
                         if (!flag2 && !flag3) {
                             if (flag) {
-                                this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_STRONG, this.getSoundCategory(), 1.0F, 1.0F);
+                                sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_STRONG, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             } else {
-                                this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_WEAK, this.getSoundCategory(), 1.0F, 1.0F);
+                                sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_WEAK, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                             }
                         }
 
@@ -1193,7 +1193,7 @@ public abstract class EntityHuman extends EntityLiving {
 
                         this.applyExhaustion(world.spigotConfig.combatExhaustion); // Spigot - Change to use configurable value
                     } else {
-                        this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_NODAMAGE, this.getSoundCategory(), 1.0F, 1.0F);
+                        sendSoundEffect(this, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_PLAYER_ATTACK_NODAMAGE, this.getSoundCategory(), 1.0F, 1.0F); // Paper - send while respecting visibility
                         if (flag4) {
                             entity.extinguish();
                         }
@@ -1645,6 +1645,14 @@ public abstract class EntityHuman extends EntityLiving {
     public int getExpToLevel() {
         return this.expLevel >= 30 ? 112 + (this.expLevel - 30) * 9 : (this.expLevel >= 15 ? 37 + (this.expLevel - 15) * 5 : 7 + this.expLevel * 2);
     }
+    // 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.playSound(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 applyExhaustion(float f) {
         if (!this.abilities.isInvulnerable) {