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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ineusia <ineusia@yahoo.com>
Date: Mon, 26 Oct 2020 11:48:06 -0500
Subject: [PATCH] Add Destroy Speed API

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index 9953b6b36cbcbfd1756bac478b568ca5700fc898..9fd636424f1300e0b8263bdd26418e6892053f8f 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -721,4 +721,24 @@ public class CraftBlockData implements BlockData {
     public BlockState createBlockState() {
         return CraftBlockStates.getBlockState(this.state, null);
     }
+
+    // Paper start - destroy speed API
+    @Override
+    public float getDestroySpeed(final ItemStack itemStack, final boolean considerEnchants) {
+        net.minecraft.world.item.ItemStack nmsItemStack = CraftItemStack.unwrap(itemStack);
+        float speed = nmsItemStack.getDestroySpeed(this.state);
+        if (speed > 1.0F && considerEnchants) {
+            final org.apache.commons.lang3.mutable.MutableFloat mutableFloat = new org.apache.commons.lang3.mutable.MutableFloat(0);
+            net.minecraft.world.item.enchantment.EnchantmentHelper.forEachModifier(
+                nmsItemStack, net.minecraft.world.entity.EquipmentSlotGroup.MAINHAND,
+                (attributeHolder, attributeModifier) -> {
+                    if (!attributeHolder.is(net.minecraft.world.entity.ai.attributes.Attributes.MINING_EFFICIENCY)) return;
+
+                    // TODO do we just attempt to calculate the full "modifier" to the mining efficiency?
+                }
+            );
+        }
+        return speed;
+    }
+    // Paper end - destroy speed API
 }