SPIGOT-7761: Ender pearl does not damage or spawn endermites

By: md_5 <git@md-5.net>

paper-server/nms-patches/net/minecraft/server/network/PlayerConnection.patch

@@ -566,7 +566,7 @@
 +        // SPIGOT-5171: Triggered on join
 +        if (from.equals(to)) {
 +            this.internalTeleport(d0, d1, d2, f, f1, set);
-+            return false; // CraftBukkit - Return event status
++            return true; // CraftBukkit - Return event status
 +        }
 +
 +        PlayerTeleportEvent event = new PlayerTeleportEvent(player, from.clone(), to.clone(), cause);
@@ -583,7 +583,7 @@
 +        }
 +
 +        this.internalTeleport(d0, d1, d2, f, f1, set);
-+        return event.isCancelled(); // CraftBukkit - Return event status
++        return !event.isCancelled(); // CraftBukkit - Return event status
 +    }
 +
 +    public void teleport(Location dest) {

paper-server/nms-patches/net/minecraft/world/entity/EntityLiving.patch

@@ -1062,7 +1062,7 @@
 +                        }
 +                    } else {
 +                        // player teleport event is called in the underlining code
-+                        if (((EntityPlayer) this).connection.teleport(d0, d6, d2, this.getYRot(), this.getXRot(), java.util.Collections.emptySet(), cause)) {
++                        if (!((EntityPlayer) this).connection.teleport(d0, d6, d2, this.getYRot(), this.getXRot(), java.util.Collections.emptySet(), cause)) {
 +                            return Optional.empty();
 +                        }
 +                    }