Paper/Spigot-Server-Patches/0646-Implement-API-to-expose-exact-interaction-point.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Matthew Miller <mnmiller1@me.com>
Date: Mon, 4 Jan 2021 16:40:27 +1000
Subject: [PATCH] Implement API to expose exact interaction point


diff --git a/src/main/java/net/minecraft/server/PlayerInteractManager.java b/src/main/java/net/minecraft/server/PlayerInteractManager.java
index 485b609bb5387b0f8a46c1201177cdc6d183ad91..114e986e5132e5e4bb42d0f08a067429bce53ba6 100644
--- a/src/main/java/net/minecraft/server/PlayerInteractManager.java
+++ b/src/main/java/net/minecraft/server/PlayerInteractManager.java
@@ -461,7 +461,7 @@ public class PlayerInteractManager {
             cancelledBlock = true;
         }
 
-        PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(entityplayer, Action.RIGHT_CLICK_BLOCK, blockposition, movingobjectpositionblock.getDirection(), itemstack, cancelledBlock, enumhand);
+        PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(entityplayer, Action.RIGHT_CLICK_BLOCK, blockposition, movingobjectpositionblock.getDirection(), itemstack, cancelledBlock, enumhand, movingobjectpositionblock.getPos()); // Paper
         firedInteract = true;
         interactResult = event.useItemInHand() == Event.Result.DENY;
         interactPosition = blockposition.immutableCopy();
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 7721b3ca951054d73b2fbf28c01a7c02b5416451..c25f18d9bf851df8cfb90f065c2d9a857d77f229 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -64,9 +64,11 @@ import net.minecraft.server.NPC;
 import net.minecraft.server.PacketPlayInCloseWindow;
 import net.minecraft.server.Raid;
 import net.minecraft.server.Unit;
+import net.minecraft.server.Vec3D;
 import net.minecraft.server.World;
 import net.minecraft.server.WorldServer;
 import org.bukkit.Bukkit;
+import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.Server;
@@ -466,7 +468,13 @@ public class CraftEventFactory {
         return callPlayerInteractEvent(who, action, position, direction, itemstack, false, hand);
     }
 
+    // Paper start - Add interactionPoint
     public static PlayerInteractEvent callPlayerInteractEvent(EntityHuman who, Action action, BlockPosition position, EnumDirection direction, ItemStack itemstack, boolean cancelledBlock, EnumHand hand) {
+        return callPlayerInteractEvent(who, action, position, direction, itemstack, cancelledBlock, hand, null);
+    }
+
+    public static PlayerInteractEvent callPlayerInteractEvent(EntityHuman who, Action action, BlockPosition position, EnumDirection direction, ItemStack itemstack, boolean cancelledBlock, EnumHand hand, Vec3D hitVec) {
+        // Paper end
         Player player = (who == null) ? null : (Player) who.getBukkitEntity();
         CraftItemStack itemInHand = CraftItemStack.asCraftMirror(itemstack);
 
@@ -492,7 +500,10 @@ public class CraftEventFactory {
             itemInHand = null;
         }
 
-        PlayerInteractEvent event = new PlayerInteractEvent(player, action, itemInHand, blockClicked, blockFace, (hand == null) ? null : ((hand == EnumHand.OFF_HAND) ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND));
+        // Paper start
+        Location interactionPoint =  hitVec == null ? null : new Location(craftWorld, hitVec.x, hitVec.y, hitVec.z);
+        PlayerInteractEvent event = new PlayerInteractEvent(player, action, itemInHand, blockClicked, blockFace, (hand == null) ? null : ((hand == EnumHand.OFF_HAND) ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND), interactionPoint);
+        // Paper end
         if (cancelledBlock) {
             event.setUseInteractedBlock(Event.Result.DENY);
         }