Paper/patches/server/0308-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 d11ba8d081861b852bf74662d5e963ac89c226ca..b647007dc94e2ea416ce4dc659c8b2d623426979 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1309,6 +1309,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
         });
         isOversleep = false;MinecraftTimings.serverOversleep.stopTiming();
         // Paper end
+        new com.destroystokyo.paper.event.server.ServerTickStartEvent(this.tickCount+1).callEvent(); // Paper
 
         ++this.tickCount;
         this.tickChildren(shouldKeepTicking);
@@ -1330,6 +1331,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             this.runAllTasks();
         }
         // Paper end
+        // Paper start
+        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
         this.profiler.push("tallying");
         long j = this.tickTimes[this.tickCount % 100] = Util.getNanos() - i;