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PaperMC/patches/server/0928-Add-PlayerTradeEvent-and-PlayerPurchaseEvent.patch
Bjarne Koll 77a5779e24
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11197) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
2ec53f49 PR-1050: Fix empty result check for Complex Recipes
10671012 PR-1044: Add CrafterCraftEvent
4d87ffe0 Use correct method in JavaDoc
ae5e5817 SPIGOT-7850: Add API for Bogged shear state
46b6d445 SPIGOT-7837: Support data pack banner patterns
d5d0cefc Fix JavaDoc error
b3c2b83d PR-1036: Add API for InventoryView derivatives
1fe2c75a SPIGOT-7809: Add ShieldMeta

CraftBukkit Changes:
8ee6fd1b8 SPIGOT-7857: Improve ItemMeta block data deserialization
8f26c30c6 SPIGOT-7857: Fix spurious internal NBT tag when deserializing BlockStateMeta
759061b93 SPIGOT-7855: Fire does not spread or burn blocks
00fc9fb64 SPIGOT-7853: AnvilInventory#getRepairCost() always returns 0
7501e2e04 PR-1450: Add CrafterCraftEvent
8c51673e7 SPIGOT-5731: PortalCreateEvent#getEntity returns null for nether portals ignited by flint and steel
d53d0d0b1 PR-1456: Fix inverted logic in CraftCrafterView#setSlotDisabled
682a678c8 SPIGOT-7850: Add API for Bogged shear state
fccf5243a SPIGOT-7837: Support data pack banner patterns
9c3bd4390 PR-1431: Add API for InventoryView derivatives
0cc6acbc4 SPIGOT-7849: Fix FoodComponent serialize with "using-converts-to" using null
2c5474952 Don't rely on tags for CraftItemMetas
20d107e46 SPIGOT-7846: Fix ItemMeta for hanging signs
76f59e315 Remove redundant clone in Dropper InventoryMoveItemEvent
e61a53d25 SPIGOT-7817: Call InventoryMoveItemEvent for Crafters
894682e2d SPIGOT-7839: Remove redundant Java version checks
2c12b2187 SPIGOT-7809: Add ShieldMeta and fix setting shield base colours

Spigot Changes:
fb8fb722 Rebuild patches
34bd42b7 SPIGOT-7835: Fix issue with custom hopper settings
2024-08-09 22:05:50 +02:00

240 lines
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Raw Blame History

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 2 Jul 2020 16:12:10 -0700
Subject: [PATCH] Add PlayerTradeEvent and PlayerPurchaseEvent
Co-authored-by: Alexander <protonull@protonmail.com>
diff --git a/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java b/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
index 6139361c0e733f981506abdd7101e5ca20eeb88f..49b35fab8ee98a384ee12d36bbe2ac813342f1d6 100644
--- a/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
@@ -143,11 +143,24 @@ public abstract class AbstractVillager extends AgeableMob implements InventoryCa
@Override
public void overrideXp(int experience) {}
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ @Override
+ public void processTrade(MerchantOffer recipe, @Nullable io.papermc.paper.event.player.PlayerPurchaseEvent event) { // The MerchantRecipe passed in here is the one set by the PlayerPurchaseEvent
+ if (event == null || event.willIncreaseTradeUses()) {
+ recipe.increaseUses();
+ }
+ if (event == null || event.isRewardingExp()) {
+ this.rewardTradeXp(recipe);
+ }
+ this.notifyTrade(recipe);
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
+
@Override
public void notifyTrade(MerchantOffer offer) {
- offer.increaseUses();
+ // offer.increaseUses(); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
this.ambientSoundTime = -this.getAmbientSoundInterval();
- this.rewardTradeXp(offer);
+ // this.rewardTradeXp(offer); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
if (this.tradingPlayer instanceof ServerPlayer) {
CriteriaTriggers.TRADE.trigger((ServerPlayer) this.tradingPlayer, this, offer.getResult());
}
diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
index 4c7e91977fa590abfe7eb3704d8008ed6d4e3ab3..32910f677b0522ac8ec513fa0d00b714b52cfae4 100644
--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
@@ -768,6 +768,14 @@ public abstract class AbstractContainerMenu {
public abstract boolean stillValid(Player player);
protected boolean moveItemStackTo(ItemStack stack, int startIndex, int endIndex, boolean fromLast) {
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ return this.moveItemStackTo(stack, startIndex, endIndex, fromLast, false);
+ }
+ protected boolean moveItemStackTo(ItemStack stack, int startIndex, int endIndex, boolean fromLast, boolean isCheck) {
+ if (isCheck) {
+ stack = stack.copy();
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
boolean flag1 = false;
int k = startIndex;
@@ -791,6 +799,11 @@ public abstract class AbstractContainerMenu {
slot = (Slot) this.slots.get(k);
itemstack1 = slot.getItem();
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent; clone if only a check
+ if (isCheck) {
+ itemstack1 = itemstack1.copy();
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
if (!itemstack1.isEmpty() && ItemStack.isSameItemSameComponents(stack, itemstack1)) {
l = itemstack1.getCount() + stack.getCount();
int i1 = slot.getMaxStackSize(itemstack1);
@@ -798,12 +811,16 @@ public abstract class AbstractContainerMenu {
if (l <= i1) {
stack.setCount(0);
itemstack1.setCount(l);
+ if (!isCheck) { // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
slot.setChanged();
+ } // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
flag1 = true;
} else if (itemstack1.getCount() < i1) {
stack.shrink(i1 - itemstack1.getCount());
itemstack1.setCount(i1);
+ if (!isCheck) { // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
slot.setChanged();
+ } // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
flag1 = true;
}
}
@@ -834,10 +851,21 @@ public abstract class AbstractContainerMenu {
slot = (Slot) this.slots.get(k);
itemstack1 = slot.getItem();
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ if (isCheck) {
+ itemstack1 = itemstack1.copy();
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
if (itemstack1.isEmpty() && slot.mayPlace(stack)) {
l = slot.getMaxStackSize(stack);
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ if (isCheck) {
+ stack.shrink(Math.min(stack.getCount(), l));
+ } else {
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
slot.setByPlayer(stack.split(Math.min(stack.getCount(), l)));
slot.setChanged();
+ } // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
flag1 = true;
break;
}
diff --git a/src/main/java/net/minecraft/world/inventory/MerchantMenu.java b/src/main/java/net/minecraft/world/inventory/MerchantMenu.java
index e45ab844afdf1a65f23eeff4c4d6cd9e3a8a28e2..5de2030452b96a4df7ce0be82f07e002db595dee 100644
--- a/src/main/java/net/minecraft/world/inventory/MerchantMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/MerchantMenu.java
@@ -135,12 +135,12 @@ public class MerchantMenu extends AbstractContainerMenu {
itemstack = itemstack1.copy();
if (slot == 2) {
- if (!this.moveItemStackTo(itemstack1, 3, 39, true)) {
+ if (!this.moveItemStackTo(itemstack1, 3, 39, true, true)) { // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
return ItemStack.EMPTY;
}
- slot1.onQuickCraft(itemstack1, itemstack);
- this.playTradeSound();
+ // slot1.onQuickCraft(itemstack1, itemstack); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent; moved to after the non-check moveItemStackTo call
+ // this.playTradeSound();
} else if (slot != 0 && slot != 1) {
if (slot >= 3 && slot < 30) {
if (!this.moveItemStackTo(itemstack1, 30, 39, false)) {
@@ -153,6 +153,7 @@ public class MerchantMenu extends AbstractContainerMenu {
return ItemStack.EMPTY;
}
+ if (slot != 2) { // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent; moved down for slot 2
if (itemstack1.isEmpty()) {
slot1.setByPlayer(ItemStack.EMPTY);
} else {
@@ -164,6 +165,21 @@ public class MerchantMenu extends AbstractContainerMenu {
}
slot1.onTake(player, itemstack1);
+ } // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent; handle slot 2
+ if (slot == 2) { // is merchant result slot
+ slot1.onTake(player, itemstack1);
+ if (itemstack1.isEmpty()) {
+ slot1.set(ItemStack.EMPTY);
+ return ItemStack.EMPTY;
+ }
+
+ this.moveItemStackTo(itemstack1, 3, 39, true, false); // This should always succeed because it's checked above
+
+ slot1.onQuickCraft(itemstack1, itemstack);
+ this.playTradeSound();
+ slot1.set(ItemStack.EMPTY); // itemstack1 should ALWAYS be empty
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
}
return itemstack;
diff --git a/src/main/java/net/minecraft/world/inventory/MerchantResultSlot.java b/src/main/java/net/minecraft/world/inventory/MerchantResultSlot.java
index 26227033613a641a9d5a6f29356b19e54753b3f1..c2376538215604210d08acd33e8e5fdc8a35c7d3 100644
--- a/src/main/java/net/minecraft/world/inventory/MerchantResultSlot.java
+++ b/src/main/java/net/minecraft/world/inventory/MerchantResultSlot.java
@@ -47,13 +47,32 @@ public class MerchantResultSlot extends Slot {
@Override
public void onTake(Player player, ItemStack stack) {
- this.checkTakeAchievements(stack);
+ // this.checkTakeAchievements(stack); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent; move to after event is called and not cancelled
MerchantOffer merchantOffer = this.slots.getActiveOffer();
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ io.papermc.paper.event.player.PlayerPurchaseEvent event = null;
+ if (merchantOffer != null && player instanceof net.minecraft.server.level.ServerPlayer serverPlayer) {
+ if (this.merchant instanceof net.minecraft.world.entity.npc.AbstractVillager abstractVillager) {
+ event = new io.papermc.paper.event.player.PlayerTradeEvent(serverPlayer.getBukkitEntity(), (org.bukkit.entity.AbstractVillager) abstractVillager.getBukkitEntity(), merchantOffer.asBukkit(), true, true);
+ } else if (this.merchant instanceof org.bukkit.craftbukkit.inventory.CraftMerchantCustom.MinecraftMerchant) {
+ event = new io.papermc.paper.event.player.PlayerPurchaseEvent(serverPlayer.getBukkitEntity(), merchantOffer.asBukkit(), false, true);
+ }
+ if (event != null) {
+ if (!event.callEvent()) {
+ stack.setCount(0);
+ event.getPlayer().updateInventory();
+ return;
+ }
+ merchantOffer = org.bukkit.craftbukkit.inventory.CraftMerchantRecipe.fromBukkit(event.getTrade()).toMinecraft();
+ }
+ }
+ this.checkTakeAchievements(stack);
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
if (merchantOffer != null) {
ItemStack itemStack = this.slots.getItem(0);
ItemStack itemStack2 = this.slots.getItem(1);
if (merchantOffer.take(itemStack, itemStack2) || merchantOffer.take(itemStack2, itemStack)) {
- this.merchant.notifyTrade(merchantOffer);
+ this.merchant.processTrade(merchantOffer, event); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent
player.awardStat(Stats.TRADED_WITH_VILLAGER);
this.slots.setItem(0, itemStack);
this.slots.setItem(1, itemStack2);
diff --git a/src/main/java/net/minecraft/world/item/trading/Merchant.java b/src/main/java/net/minecraft/world/item/trading/Merchant.java
index 5a350948a4735902f5c612592bc9d100445a0c8a..716b30dcd7e63c66736c448dd136c9f74dc7fe43 100644
--- a/src/main/java/net/minecraft/world/item/trading/Merchant.java
+++ b/src/main/java/net/minecraft/world/item/trading/Merchant.java
@@ -20,6 +20,7 @@ public interface Merchant {
void overrideOffers(MerchantOffers offers);
+ default void processTrade(MerchantOffer merchantRecipe, @Nullable io.papermc.paper.event.player.PlayerPurchaseEvent event) { this.notifyTrade(merchantRecipe); } // Paper
void notifyTrade(MerchantOffer offer);
void notifyTradeUpdated(ItemStack stack);
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
index adf22ce4f0bcd3bd57dc2030c6c92d3df96566e3..e33ddcd967a427abfda9e6692338da4996a81c6c 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
@@ -74,10 +74,25 @@ public class CraftMerchantCustom extends CraftMerchant {
return this.trades;
}
+ // Paper start - Add PlayerTradeEvent and PlayerPurchaseEvent
+ @Override
+ public void processTrade(MerchantOffer merchantRecipe, @javax.annotation.Nullable io.papermc.paper.event.player.PlayerPurchaseEvent event) { // The MerchantRecipe passed in here is the one set by the PlayerPurchaseEvent
+ /** Based on {@link net.minecraft.world.entity.npc.AbstractVillager#processTrade(MerchantOffer, io.papermc.paper.event.player.PlayerPurchaseEvent)} */
+ if (getTradingPlayer() instanceof net.minecraft.server.level.ServerPlayer) {
+ if (event == null || event.willIncreaseTradeUses()) {
+ merchantRecipe.increaseUses();
+ }
+ if (event == null || event.isRewardingExp()) {
+ this.tradingPlayer.level().addFreshEntity(new net.minecraft.world.entity.ExperienceOrb(this.tradingPlayer.level(), this.tradingPlayer.getX(), this.tradingPlayer.getY(), this.tradingPlayer.getZ(), merchantRecipe.getXp(), org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, this.tradingPlayer, null));
+ }
+ }
+ this.notifyTrade(merchantRecipe);
+ }
+ // Paper end - Add PlayerTradeEvent and PlayerPurchaseEvent
@Override
public void notifyTrade(MerchantOffer offer) {
// increase recipe's uses
- offer.increaseUses();
+ // offer.increaseUses(); // Paper - Add PlayerTradeEvent and PlayerPurchaseEvent; handled above in processTrade
}
@Override
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