From b6316013cadd339d9d4e0ac0ad51b1aad7706b17 Mon Sep 17 00:00:00 2001
From: Jay Hopkins <jhopkins@vt.edu>
Date: Sat, 18 Apr 2020 05:48:51 -0400
Subject: [PATCH] Add Paper tag base and tick_times tag (#2192)

* Add Paper tag base and tick_times tag

* Return durations for paper tick_times

* Add missing paper key to docs
---
 .../denizen/paper/PaperModule.java            |  6 +++
 .../denizen/paper/tags/PaperTagBase.java      | 46 +++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 paper/src/main/java/com/denizenscript/denizen/paper/tags/PaperTagBase.java

diff --git a/paper/src/main/java/com/denizenscript/denizen/paper/PaperModule.java b/paper/src/main/java/com/denizenscript/denizen/paper/PaperModule.java
index 3b5f2f981b..4477e54622 100644
--- a/paper/src/main/java/com/denizenscript/denizen/paper/PaperModule.java
+++ b/paper/src/main/java/com/denizenscript/denizen/paper/PaperModule.java
@@ -3,6 +3,7 @@
 import com.denizenscript.denizen.objects.EntityTag;
 import com.denizenscript.denizen.paper.events.*;
 import com.denizenscript.denizen.paper.properties.EntityCanTick;
+import com.denizenscript.denizen.paper.tags.PaperTagBase;
 import com.denizenscript.denizen.utilities.debugging.Debug;
 import com.denizenscript.denizencore.events.ScriptEvent;
 import com.denizenscript.denizencore.objects.properties.PropertyParser;
@@ -11,6 +12,7 @@ public class PaperModule {
 
     public static void init() {
         Debug.log("Loading Paper support module...");
+
         // Events
         ScriptEvent.registerScriptEvent(new EntityKnocksbackEntityScriptEvent());
         ScriptEvent.registerScriptEvent(new PlayerEquipsArmorScriptEvent());
@@ -19,7 +21,11 @@ public static void init() {
         ScriptEvent.registerScriptEvent(new PlayerStopsSpectatingScriptEvent());
         ScriptEvent.registerScriptEvent(new ProjectileCollideScriptEvent());
         ScriptEvent.registerScriptEvent(new TNTPrimesScriptEvent());
+
         // Properties
         PropertyParser.registerProperty(EntityCanTick.class, EntityTag.class);
+
+        // Paper Tags
+        new PaperTagBase();
     }
 }
diff --git a/paper/src/main/java/com/denizenscript/denizen/paper/tags/PaperTagBase.java b/paper/src/main/java/com/denizenscript/denizen/paper/tags/PaperTagBase.java
new file mode 100644
index 0000000000..d5f4aef3f9
--- /dev/null
+++ b/paper/src/main/java/com/denizenscript/denizen/paper/tags/PaperTagBase.java
@@ -0,0 +1,46 @@
+package com.denizenscript.denizen.paper.tags;
+
+import com.denizenscript.denizencore.objects.core.DurationTag;
+import com.denizenscript.denizencore.objects.core.ListTag;
+import com.denizenscript.denizencore.tags.TagRunnable;
+import com.denizenscript.denizencore.tags.Attribute;
+import com.denizenscript.denizencore.tags.ReplaceableTagEvent;
+import com.denizenscript.denizencore.tags.TagManager;
+import org.bukkit.Bukkit;
+
+public class PaperTagBase {
+
+    public PaperTagBase() {
+        TagManager.registerTagHandler(new TagRunnable.RootForm() {
+            @Override
+            public void run(ReplaceableTagEvent event) {
+                paperTag(event);
+            }
+        }, "paper");
+    }
+
+    public void paperTag(ReplaceableTagEvent event) {
+        if (!event.matches("paper") || event.replaced()) {
+            return;
+        }
+
+        Attribute attribute = event.getAttributes().fulfill(1);
+
+        // <--[tag]
+        // @attribute <paper.tick_times>
+        // @returns ListTag(DurationTag)
+        // @Plugin Paper
+        // @description
+        // Returns a sample of the server's last 5s of tick times as a list of durations.
+        // On average, a tick should take 50ms or less for a stable 20tps.
+        // -->
+        if (attribute.startsWith("tick_times")) {
+            ListTag list = new ListTag();
+            for (long time : Bukkit.getServer().getTickTimes()) {
+                list.addObject(new DurationTag(time / 1000000000D));
+            }
+            event.setReplacedObject(list.getObjectAttribute(attribute.fulfill(1)));
+            return;
+        }
+    }
+}