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Yatopia/patches/server/0004-EMC-PlayerUseItem-Event.patch
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2020-03-21 17:29:35 +01:00

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From 4421584fbbc1dfb981327ea61e8621616b60c3f1 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 22 Dec 2012 00:35:15 -0500
Subject: [PATCH] EMC PlayerUseItem Event
This lets us control when an item is consumed and change the item.
---
.../net/minecraft/server/EntityLiving.java | 2 +-
.../server/PlayerInteractManager.java | 90 ++++++++++++++++---
2 files changed, 78 insertions(+), 14 deletions(-)
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index ad474500..671fa069 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -1899,7 +1899,7 @@ public abstract class EntityLiving extends Entity {
}
}
- public void a(EnumHand enumhand, ItemStack itemstack) {
+ public void setHand(EnumHand hand, ItemStack item) { a(hand, item); } public void a(EnumHand enumhand, ItemStack itemstack) { // Paper - OBFHELPER
if (enumhand == EnumHand.MAIN_HAND) {
this.setSlot(EnumItemSlot.MAINHAND, itemstack);
} else {
diff --git a/src/main/java/net/minecraft/server/PlayerInteractManager.java b/src/main/java/net/minecraft/server/PlayerInteractManager.java
index 1b60310b..3f358ec5 100644
--- a/src/main/java/net/minecraft/server/PlayerInteractManager.java
+++ b/src/main/java/net/minecraft/server/PlayerInteractManager.java
@@ -412,6 +412,15 @@ public class PlayerInteractManager {
}
public EnumInteractionResult a(EntityHuman entityhuman, World world, ItemStack itemstack, EnumHand enumhand) {
+ // Paper start - Allow control over if item should be consumed or not.
+ org.bukkit.inventory.EquipmentSlot bukkitHand = enumhand == EnumHand.MAIN_HAND ? org.bukkit.inventory.EquipmentSlot.HAND : org.bukkit.inventory.EquipmentSlot.OFF_HAND;
+ org.bukkit.craftbukkit.inventory.CraftItemStack craftitem = org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack);
+ org.bukkit.craftbukkit.inventory.CraftItemStack origItemClone = craftitem.clone();
+ com.empireminecraft.customevents.PlayerUseItemEvent event = new com.empireminecraft.customevents.PlayerUseItemEvent(player.getBukkitEntity(), craftitem, bukkitHand);
+ if (!event.callEvent()) {
+ return EnumInteractionResult.FAIL;
+ }
+ // Paper end
if (this.gamemode == EnumGamemode.SPECTATOR) {
return EnumInteractionResult.PASS;
} else if (entityhuman.getCooldownTracker().hasCooldown(itemstack.getItem())) {
@@ -419,27 +428,53 @@ public class PlayerInteractManager {
} else {
int i = itemstack.getCount();
int j = itemstack.getDamage();
+ // Paper start
+ ItemStack orig = itemstack;
+ if (event.getTempItem() != null) {
+ itemstack = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getTempItem());
+ entityhuman.setHand(enumhand, itemstack);
+ }
+ // Paper end
InteractionResultWrapper<ItemStack> interactionresultwrapper = itemstack.a(world, entityhuman, enumhand);
+
ItemStack itemstack1 = (ItemStack) interactionresultwrapper.b();
+ // Paper start - change order and redo lots of things here.
+ if (event.getTempItem() != null) {
+ // restore original item
+ entityhuman.setHand(enumhand, itemstack1 = orig);
+ }
- if (itemstack1 == itemstack && itemstack1.getCount() == i && itemstack1.k() <= 0 && itemstack1.getDamage() == j) {
- return interactionresultwrapper.a();
- } else if (interactionresultwrapper.a() == EnumInteractionResult.FAIL && itemstack1.k() > 0 && !entityhuman.isHandRaised()) {
+ boolean isSame = itemstack1 == itemstack && itemstack1.getCount() == i && itemstack1.k() <= 0 && itemstack1.getDamage() == j;
+ // This was just a short circuit, always run post use on success
+ if (interactionresultwrapper.a() == EnumInteractionResult.FAIL && itemstack1.k() > 0 && !entityhuman.isHandRaised()) {
+ // if fail, abort - this is vanilla
return interactionresultwrapper.a();
} else {
- entityhuman.a(enumhand, itemstack1);
- if (this.isCreative()) {
+ if (!event.shouldConsumeItem() || this.isCreative()) { // Paper - add getConsumeItem - moved up
itemstack1.setCount(i);
if (itemstack1.e() && itemstack1.getDamage() != j) {
itemstack1.setDamage(j);
}
}
+ org.bukkit.inventory.ItemStack craftNew = org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack1);
+ com.destroystokyo.paper.event.player.PlayerPostUseItemEvent postUseItemEvent = new com.destroystokyo.paper.event.player.PlayerPostUseItemEvent(player.getBukkitEntity(), origItemClone, craftNew, bukkitHand);
+ postUseItemEvent.callEvent();
+
+ //noinspection ObjectEquality
+ if (craftNew != postUseItemEvent.getNewItem()) {
+ // Use a different new item instead. Not good to do if its a "Hold to use item" FYI!
+ itemstack1 = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(postUseItemEvent.getNewItem());
+ isSame = false;
+ }
+ entityhuman.a(enumhand, itemstack1);
+ // Paper end
if (itemstack1.isEmpty()) {
entityhuman.a(enumhand, ItemStack.a);
+ isSame = false; // Paper
}
- if (!entityhuman.isHandRaised()) {
+ if (itemstack1.isEmpty() || (!isSame && !entityhuman.isHandRaised())) { // Paper - add !isSame
((EntityPlayer) entityhuman).updateInventory(entityhuman.defaultContainer);
}
@@ -453,6 +488,7 @@ public class PlayerInteractManager {
public boolean firedInteract = false;
public EnumInteractionResult a(EntityHuman entityhuman, World world, ItemStack itemstack, EnumHand enumhand, MovingObjectPositionBlock movingobjectpositionblock) {
BlockPosition blockposition = movingobjectpositionblock.getBlockPosition();
+ org.bukkit.util.Vector hitVector = new org.bukkit.util.Vector(movingobjectpositionblock.getPos().x, movingobjectpositionblock.getPos().y, movingobjectpositionblock.getPos().z); // Paper - Ensure last 3 floats line up as vector params
IBlockData iblockdata = world.getType(blockposition);
EnumInteractionResult enuminteractionresult = EnumInteractionResult.PASS;
boolean cancelledBlock = false;
@@ -520,17 +556,45 @@ public class PlayerInteractManager {
}
if (!itemstack.isEmpty() && enuminteractionresult != EnumInteractionResult.SUCCESS && !interactResult) { // add !interactResult SPIGOT-764
- ItemActionContext itemactioncontext = new ItemActionContext(entityhuman, enumhand, movingobjectpositionblock);
+ // Paper start - Allow control over if item should be consumed or not.
+ org.bukkit.inventory.EquipmentSlot bukkitHand = enumhand == EnumHand.MAIN_HAND ? org.bukkit.inventory.EquipmentSlot.HAND : org.bukkit.inventory.EquipmentSlot.OFF_HAND;
+ org.bukkit.craftbukkit.inventory.CraftItemStack craftitem = org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack);
+ com.empireminecraft.customevents.PlayerPlaceItemAtEvent eventPlace = new com.empireminecraft.customevents.PlayerPlaceItemAtEvent(
+ (org.bukkit.entity.Player) entityhuman.getBukkitEntity(), craftitem,
+ MCUtil.toLocation(world, blockposition),
+ org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(movingobjectpositionblock.getDirection()),
+ hitVector, bukkitHand);
+
+ if (!eventPlace.callEvent()) {
+ return EnumInteractionResult.FAIL;
+ }
- if (this.isCreative()) {
- int i = itemstack.getCount();
- enuminteractionresult = itemstack.placeItem(itemactioncontext, enumhand);
+ ItemStack orig = itemstack;
+ if (eventPlace.getTempItem() != null) {
+ itemstack = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(eventPlace.getTempItem());
+ entityhuman.setHand(enumhand, itemstack);
+ }
+ //replace entityhuman.b(enumhand) with itemstack
+ ItemActionContext itemactioncontext = new ItemActionContext(entityhuman, enumhand, movingobjectpositionblock);
+ int i = itemstack.getCount();
+ enuminteractionresult = itemstack.placeItem(itemactioncontext, enumhand);
+ if (eventPlace.getTempItem() != null) {
+ entityhuman.setHand(enumhand, itemstack = orig);
+ }
+ if (!eventPlace.getConsumeItem() || this.isCreative()) {
itemstack.setCount(i);
- return enuminteractionresult;
- } else {
- return itemstack.placeItem(itemactioncontext, enumhand);
}
+ if (enuminteractionresult != EnumInteractionResult.FAIL) {
+ com.destroystokyo.paper.event.player.PlayerPostPlaceItemAtEvent postUseItemEvent =
+ new com.destroystokyo.paper.event.player.PlayerPostPlaceItemAtEvent(player.getBukkitEntity(), craftitem,
+ MCUtil.toLocation(world, blockposition),
+ org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(movingobjectpositionblock.getDirection()),
+ hitVector, bukkitHand);
+ postUseItemEvent.callEvent();
+ }
+ return enuminteractionresult;
+ // Paper end
}
}
return enuminteractionresult;
--
2.25.1.windows.1
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