PaperMC/Spigot-Server-Patches/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/level/PlayerInteractManager.java b/src/main/java/net/minecraft/server/level/PlayerInteractManager.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/level/PlayerInteractManager.java
+++ b/src/main/java/net/minecraft/server/level/PlayerInteractManager.java
@@ -0,0 +0,0 @@ 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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -0,0 +0,0 @@ import net.minecraft.world.level.storage.loot.parameters.LootContextParameters;
 import net.minecraft.world.phys.MovingObjectPosition;
 import net.minecraft.world.phys.MovingObjectPositionBlock;
 import net.minecraft.world.phys.MovingObjectPositionEntity;
+import net.minecraft.world.phys.Vec3D;
 import org.bukkit.Bukkit;
+import org.bukkit.Location; // Paper
 import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.Server;
@@ -0,0 +0,0 @@ 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);
 
@@ -0,0 +0,0 @@ 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);
         }