From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Tue, 25 Aug 2020 13:48:33 +0200
Subject: [PATCH] Add PlayerItemCooldownEvent


diff --git a/src/main/java/net/minecraft/world/item/ItemCooldowns.java b/src/main/java/net/minecraft/world/item/ItemCooldowns.java
index 2add88d2543b2e1143bd4b1c53946d7ba3f399da..c7a21b33db802fa6b64865ff2b4f0941279b72cb 100644
--- a/src/main/java/net/minecraft/world/item/ItemCooldowns.java
+++ b/src/main/java/net/minecraft/world/item/ItemCooldowns.java
@@ -56,6 +56,13 @@ public class ItemCooldowns {
     }
 
     public void addCooldown(ResourceLocation groupId, int duration) {
+        // Paper start - Item cooldown events
+        this.addCooldown(groupId, duration, true);
+    }
+
+    public void addCooldown(ResourceLocation groupId, int duration, boolean callEvent) {
+        // Event called in server override
+        // Paper end - Item cooldown events
         this.cooldowns.put(groupId, new ItemCooldowns.CooldownInstance(this.tickCount, this.tickCount + duration));
         this.onCooldownStarted(groupId, duration);
     }
diff --git a/src/main/java/net/minecraft/world/item/ServerItemCooldowns.java b/src/main/java/net/minecraft/world/item/ServerItemCooldowns.java
index 3a45a149ec4a28f25ea9e45803ecbb7392b63f86..7b634a0a8639524a276cd6c5d6535e28a580b20a 100644
--- a/src/main/java/net/minecraft/world/item/ServerItemCooldowns.java
+++ b/src/main/java/net/minecraft/world/item/ServerItemCooldowns.java
@@ -11,6 +11,39 @@ public class ServerItemCooldowns extends ItemCooldowns {
         this.player = player;
     }
 
+    // Paper start - Add PlayerItemCooldownEvent
+    @Override
+    public void addCooldown(ItemStack item, int duration) {
+        final ResourceLocation cooldownGroup = this.getCooldownGroup(item);
+        final io.papermc.paper.event.player.PlayerItemCooldownEvent event = new io.papermc.paper.event.player.PlayerItemCooldownEvent(
+            this.player.getBukkitEntity(),
+            org.bukkit.craftbukkit.inventory.CraftItemType.minecraftToBukkit(item.getItem()),
+            org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(cooldownGroup),
+            duration
+        );
+        if (event.callEvent()) {
+            super.addCooldown(cooldownGroup, event.getCooldown(), false);
+        }
+    }
+
+    @Override
+    public void addCooldown(ResourceLocation groupId, int duration, boolean callEvent) {
+        if (callEvent) {
+            final io.papermc.paper.event.player.PlayerItemGroupCooldownEvent event = new io.papermc.paper.event.player.PlayerItemGroupCooldownEvent(
+                this.player.getBukkitEntity(),
+                org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(groupId),
+                duration
+            );
+            if (!event.callEvent()) {
+                return;
+            }
+
+            duration = event.getCooldown();
+        }
+        super.addCooldown(groupId, duration, false);
+    }
+    // Paper end - Add PlayerItemCooldownEvent
+
     @Override
     protected void onCooldownStarted(ResourceLocation groupId, int duration) {
         super.onCooldownStarted(groupId, duration);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index 9022555db0df8c269fc039c895422cf36c08097e..8012ee71e1ce9f174eb5c4ac9eb8372b81e0a78c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -619,7 +619,7 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
         }
 
         ItemCooldowns.CooldownInstance cooldown = this.getHandle().getCooldowns().cooldowns.get(group);
-        return (cooldown == null) ? 0 : Math.max(0, cooldown.endTime - this.getHandle().getCooldowns().tickCount);
+        return (cooldown == null) ? 0 : Math.max(0, cooldown.endTime() - this.getHandle().getCooldowns().tickCount);
     }
 
     @Override