From d5938a4f8bed275a0bf78723ef2e8ed82f8bdeb0 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 4d604bd0..2a8e097f 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1087,6 +1087,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         });
         MinecraftTimings.serverOversleep.stopTiming();
         // Paper end
+        new com.destroystokyo.paper.event.server.ServerTickStartEvent(this.ticks+1).callEvent(); // Paper
 
         ++this.ticks;
         this.b(booleansupplier);
@@ -1130,6 +1131,12 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         }
         // Paper end
 
+        // Paper start
+        long endTime = System.nanoTime();
+        long remaining = (TICK_TIME - (endTime - lastTick)) - catchupTime;
+        new com.destroystokyo.paper.event.server.ServerTickEndEvent(this.ticks, ((double)(endTime - lastTick) / 1000000D), remaining).callEvent();
+        // Paper end
+
         this.methodProfiler.enter("tallying");
         long l = this.f[this.ticks % 100] = SystemUtils.getMonotonicNanos() - i;
 
-- 
2.25.1.windows.1