[Bleeding] Implemented Vanish API.

Remove players that cannot see a player from their EntityTrackerEntry and only
send user list updates to players who can see the player they reference.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
index caef4df7..6ccf0189 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -187,6 +187,14 @@ public class EntityTrackerEntry {
 
             if (d0 >= (double) (-this.b) && d0 <= (double) this.b && d1 >= (double) (-this.b) && d1 <= (double) this.b) {
                 if (!this.trackedPlayers.contains(entityplayer)) {
+                    // CraftBukkit start
+                    if (tracker instanceof EntityPlayer) {
+                        org.bukkit.entity.Player player = ((EntityPlayer) tracker).getBukkitEntity();
+                        if (!entityplayer.getBukkitEntity().canSee(player)) {
+                            return;
+                        }
+                    }
+                    // CraftBukkit end
                     this.trackedPlayers.add(entityplayer);
                     entityplayer.netServerHandler.sendPacket(this.b());
                     if (this.isMoving) {