Paper/patches/server/0281-Server-Tick-Events.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 27 Mar 2019 22:48:45 -0400
Subject: [PATCH] Server Tick Events

Fires event at start and end of a server tick

diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 8f427475f7418bbfb8121dbd3e25e7827775ea41..447b8f9ede3f57c6c5f968a0d25153c5c8770c5a 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1482,6 +1482,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             }
         }
 
+        new com.destroystokyo.paper.event.server.ServerTickStartEvent(this.tickCount+1).callEvent(); // Paper - Server Tick Events
         ++this.tickCount;
         this.tickRateManager.tick();
         this.tickChildren(shouldKeepTicking);
@@ -1498,6 +1499,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
         ProfilerFiller gameprofilerfiller = Profiler.get();
 
         this.runAllTasks(); // Paper - move runAllTasks() into full server tick (previously for timings)
+        // Paper start - Server Tick Events
+        long endTime = System.nanoTime();
+        long remaining = (TICK_TIME - (endTime - lastTick)) - catchupTime;
+        new com.destroystokyo.paper.event.server.ServerTickEndEvent(this.tickCount, ((double)(endTime - lastTick) / 1000000D), remaining).callEvent();
+        // Paper end - Server Tick Events
         gameprofilerfiller.push("tallying");
         long k = Util.getNanos() - i;
         int l = this.tickCount % 100;