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Paper/patches/api/0167-Server-Tick-Events.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 27 Mar 2019 21:58:55 -0400
Subject: [PATCH] Server Tick Events
Fires event at start and end of a server tick
diff --git a/src/main/java/com/destroystokyo/paper/event/server/ServerTickEndEvent.java b/src/main/java/com/destroystokyo/paper/event/server/ServerTickEndEvent.java
new file mode 100644
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index 0000000000000000000000000000000000000000..17e9f39ce1cc7489e936c96f95b8b0579528b222
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--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/server/ServerTickEndEvent.java
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@@ -0,0 +1,62 @@
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+package com.destroystokyo.paper.event.server;
+
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
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+import org.jetbrains.annotations.ApiStatus;
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+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Called when the server has finished ticking the main loop
+ */
+public class ServerTickEndEvent extends Event {
+
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+ private static final HandlerList HANDLER_LIST = new HandlerList();
+
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+ private final int tickNumber;
+ private final double tickDuration;
+ private final long timeEnd;
+
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+ @ApiStatus.Internal
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+ public ServerTickEndEvent(int tickNumber, double tickDuration, long timeRemaining) {
+ this.tickNumber = tickNumber;
+ this.tickDuration = tickDuration;
+ this.timeEnd = System.nanoTime() + timeRemaining;
+ }
+
+ /**
+ * @return What tick this was since start (first tick = 1)
+ */
+ public int getTickNumber() {
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+ return this.tickNumber;
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+ }
+
+ /**
+ * @return Time in milliseconds of how long this tick took
+ */
+ public double getTickDuration() {
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+ return this.tickDuration;
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+ }
+
+ /**
+ * Amount of nanoseconds remaining before the next tick should start.
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+ * <p>
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+ * If this value is negative, then that means the server has exceeded the tick time limit and TPS has been lost.
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+ * <p>
+ * Method will continuously return the updated time remaining value. (return value is not static)
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+ *
+ * @return Amount of nanoseconds remaining before the next tick should start
+ */
+ public long getTimeRemaining() {
+ return this.timeEnd - System.nanoTime();
+ }
+
+ @NotNull
+ public HandlerList getHandlers() {
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+ return HANDLER_LIST;
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+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
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+ return HANDLER_LIST;
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+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/event/server/ServerTickStartEvent.java b/src/main/java/com/destroystokyo/paper/event/server/ServerTickStartEvent.java
new file mode 100644
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index 0000000000000000000000000000000000000000..fb5bbfffea8b883e4c8769484a2b64dd895cb617
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--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/server/ServerTickStartEvent.java
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@@ -0,0 +1,35 @@
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+package com.destroystokyo.paper.event.server;
+
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
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+import org.jetbrains.annotations.ApiStatus;
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+import org.jetbrains.annotations.NotNull;
+
+public class ServerTickStartEvent extends Event {
+
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+ private static final HandlerList HANDLER_LIST = new HandlerList();
+
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+ private final int tickNumber;
+
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+ @ApiStatus.Internal
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+ public ServerTickStartEvent(int tickNumber) {
+ this.tickNumber = tickNumber;
+ }
+
+ /**
+ * @return What tick this is going be since start (first tick = 1)
+ */
+ public int getTickNumber() {
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+ return this.tickNumber;
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+ }
+
+ @NotNull
+ public HandlerList getHandlers() {
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+ return HANDLER_LIST;
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+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
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+ return HANDLER_LIST;
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+ }
+}