Paper/patches/server/0542-Implement-API-to-expose-exact-interaction-point.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Madeline 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/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 77eec518940ae41880e395b3dd051d89bd67c319..e6154cf74df39d0c87fc820027adc9641156f888 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -517,7 +517,7 @@ public class ServerPlayerGameMode {
             cancelledBlock = true;
         }
 
-        PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(player, Action.RIGHT_CLICK_BLOCK, blockposition, hitResult.getDirection(), stack, cancelledBlock, hand);
+        PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(player, Action.RIGHT_CLICK_BLOCK, blockposition, hitResult.getDirection(), stack, cancelledBlock, hand, hitResult.getLocation()); // Paper
         this.firedInteract = true;
         this.interactResult = event.useItemInHand() == Event.Result.DENY;
         this.interactPosition = blockposition.immutable();
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 74c45f5451f9284e3c6b46941b65f535574deda6..702a30fd7f3178ce30043283afd36a0ea6745cf9 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -57,7 +57,9 @@ import net.minecraft.world.level.storage.loot.parameters.LootContextParams;
 import net.minecraft.world.phys.BlockHitResult;
 import net.minecraft.world.phys.EntityHitResult;
 import net.minecraft.world.phys.HitResult;
+import net.minecraft.world.phys.Vec3;
 import org.bukkit.Bukkit;
+import org.bukkit.Location; // Paper
 import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.Server;
@@ -490,7 +492,13 @@ public class CraftEventFactory {
         return CraftEventFactory.callPlayerInteractEvent(who, action, position, direction, itemstack, false, hand);
     }
 
+    // Paper start - Add interactionPoint
     public static PlayerInteractEvent callPlayerInteractEvent(net.minecraft.world.entity.player.Player who, Action action, BlockPos position, Direction direction, ItemStack itemstack, boolean cancelledBlock, InteractionHand hand) {
+        return callPlayerInteractEvent(who, action, position, direction, itemstack, cancelledBlock, hand, null);
+    }
+
+    public static PlayerInteractEvent callPlayerInteractEvent(net.minecraft.world.entity.player.Player who, Action action, BlockPos position, Direction direction, ItemStack itemstack, boolean cancelledBlock, InteractionHand hand, Vec3 hitVec) {
+        // Paper end
         Player player = (who == null) ? null : (Player) who.getBukkitEntity();
         CraftItemStack itemInHand = CraftItemStack.asCraftMirror(itemstack);
 
@@ -516,7 +524,10 @@ public class CraftEventFactory {
             itemInHand = null;
         }
 
-        PlayerInteractEvent event = new PlayerInteractEvent(player, action, itemInHand, blockClicked, blockFace, (hand == null) ? null : ((hand == InteractionHand.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 == InteractionHand.OFF_HAND) ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND), interactionPoint);
+        // Paper end
         if (cancelledBlock) {
             event.setUseInteractedBlock(Event.Result.DENY);
         }