1 files changed, 150 insertions, 0 deletions
diff --git a/patches/server/0439-Add-ignore-discounts-API.patch b/patches/server/0439-Add-ignore-discounts-API.patch
new file mode 100644
index 0000000000..2f9c40bb4c
--- /dev/null
+++ b/patches/server/0439-Add-ignore-discounts-API.patch
@@ -0,0 +1,150 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mariell Hoversholm <[email protected]>
+Date: Mon, 9 Nov 2020 20:44:51 +0100
+Subject: [PATCH] Add ignore discounts API
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+index 4d7f95d2bd415bacccee145bfc47f2b480530c11..4d3a04e1d7910c4e71ac9a1cebb58e482958671a 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
++++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+@@ -491,6 +491,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+ 
+             while (iterator.hasNext()) {
+                 MerchantOffer merchantrecipe = (MerchantOffer) iterator.next();
++                if (merchantrecipe.ignoreDiscounts) continue; // Paper - Add ignore discounts API
+ 
+                 merchantrecipe.addToSpecialPriceDiff(-Mth.floor((float) i * merchantrecipe.getPriceMultiplier()));
+             }
+@@ -503,6 +504,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+ 
+             while (iterator1.hasNext()) {
+                 MerchantOffer merchantrecipe1 = (MerchantOffer) iterator1.next();
++                if (merchantrecipe1.ignoreDiscounts) continue; // Paper - Add ignore discounts API
+                 double d0 = 0.3D + 0.0625D * (double) j;
+                 int k = (int) Math.floor(d0 * (double) merchantrecipe1.getBaseCostA().getCount());
+ 
+diff --git a/src/main/java/net/minecraft/world/item/trading/MerchantOffer.java b/src/main/java/net/minecraft/world/item/trading/MerchantOffer.java
+index 89982d25f60c8b60ba91e559ef88278f338fe215..0efc8d997b34302c3e0a5d7ec73a11a940dbeefe 100644
+--- a/src/main/java/net/minecraft/world/item/trading/MerchantOffer.java
++++ b/src/main/java/net/minecraft/world/item/trading/MerchantOffer.java
+@@ -33,6 +33,10 @@ public class MerchantOffer {
+             return merchantrecipe.priceMultiplier;
+         }), Codec.INT.lenientOptionalFieldOf("xp", 1).forGetter((merchantrecipe) -> {
+             return merchantrecipe.xp;
++        // Paper start
++        }), Codec.BOOL.lenientOptionalFieldOf("Paper.IgnoreDiscounts", false).forGetter((merchantrecipe) -> {
++            return merchantrecipe.ignoreDiscounts;
++        // Paper end
+         })).apply(instance, MerchantOffer::new);
+     });
+     public static final StreamCodec<RegistryFriendlyByteBuf, MerchantOffer> STREAM_CODEC = StreamCodec.of(MerchantOffer::writeToStream, MerchantOffer::createFromStream);
+@@ -46,6 +50,7 @@ public class MerchantOffer {
+     public int demand;
+     public float priceMultiplier;
+     public int xp;
++    public boolean ignoreDiscounts; // Paper - Add ignore discounts API
+     // CraftBukkit start
+     private CraftMerchantRecipe bukkitHandle;
+ 
+@@ -53,13 +58,14 @@ public class MerchantOffer {
+         return (this.bukkitHandle == null) ? this.bukkitHandle = new CraftMerchantRecipe(this) : this.bukkitHandle;
+     }
+ 
+-    public MerchantOffer(ItemCost baseCostA, Optional<ItemCost> costB, ItemStack result, int uses, int maxUses, int experience, float priceMultiplier, int demand, CraftMerchantRecipe bukkit) {
++    public MerchantOffer(ItemCost baseCostA, Optional<ItemCost> costB, ItemStack result, int uses, int maxUses, int experience, float priceMultiplier, int demand, final boolean ignoreDiscounts, CraftMerchantRecipe bukkit) { // Paper
+         this(baseCostA, costB, result, uses, maxUses, experience, priceMultiplier, demand);
++        this.ignoreDiscounts = ignoreDiscounts; // Paper
+         this.bukkitHandle = bukkit;
+     }
+     // CraftBukkit end
+ 
+-    private MerchantOffer(ItemCost firstBuyItem, Optional<ItemCost> secondBuyItem, ItemStack sellItem, int uses, int maxUses, boolean rewardingPlayerExperience, int specialPrice, int demandBonus, float priceMultiplier, int merchantExperience) {
++    private MerchantOffer(ItemCost firstBuyItem, Optional<ItemCost> secondBuyItem, ItemStack sellItem, int uses, int maxUses, boolean rewardingPlayerExperience, int specialPrice, int demandBonus, float priceMultiplier, int merchantExperience, final boolean ignoreDiscounts) { // Paper
+         this.baseCostA = firstBuyItem;
+         this.costB = secondBuyItem;
+         this.result = sellItem;
+@@ -70,6 +76,7 @@ public class MerchantOffer {
+         this.demand = demandBonus;
+         this.priceMultiplier = priceMultiplier;
+         this.xp = merchantExperience;
++        this.ignoreDiscounts = ignoreDiscounts; // Paper
+     }
+ 
+     public MerchantOffer(ItemCost buyItem, ItemStack sellItem, int maxUses, int merchantExperience, float priceMultiplier) {
+@@ -85,11 +92,11 @@ public class MerchantOffer {
+     }
+ 
+     public MerchantOffer(ItemCost firstBuyItem, Optional<ItemCost> secondBuyItem, ItemStack sellItem, int uses, int maxUses, int merchantExperience, float priceMultiplier, int demandBonus) {
+-        this(firstBuyItem, secondBuyItem, sellItem, uses, maxUses, true, 0, demandBonus, priceMultiplier, merchantExperience);
++        this(firstBuyItem, secondBuyItem, sellItem, uses, maxUses, true, 0, demandBonus, priceMultiplier, merchantExperience, false); // Paper
+     }
+ 
+     private MerchantOffer(MerchantOffer offer) {
+-        this(offer.baseCostA, offer.costB, offer.result.copy(), offer.uses, offer.maxUses, offer.rewardExp, offer.specialPriceDiff, offer.demand, offer.priceMultiplier, offer.xp);
++        this(offer.baseCostA, offer.costB, offer.result.copy(), offer.uses, offer.maxUses, offer.rewardExp, offer.specialPriceDiff, offer.demand, offer.priceMultiplier, offer.xp, offer.ignoreDiscounts); // Paper
+     }
+ 
+     public ItemStack getBaseCostA() {
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantRecipe.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantRecipe.java
+index 3bf9b5c016fa638fd0377d2a031a7359430b79ce..a18088125254178d362fdd283bff704a9ccdd0a7 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantRecipe.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantRecipe.java
+@@ -22,11 +22,19 @@ public class CraftMerchantRecipe extends MerchantRecipe {
+ 
+     @Deprecated
+     public CraftMerchantRecipe(ItemStack result, int uses, int maxUses, boolean experienceReward, int experience, float priceMultiplier) {
+-        this(result, uses, maxUses, experienceReward, experience, priceMultiplier, 0, 0);
++        // Paper start - add ignoreDiscounts param
++        this(result, uses, maxUses, experienceReward, experience, priceMultiplier, 0, 0, false);
++    }
++    public CraftMerchantRecipe(ItemStack result, int uses, int maxUses, boolean experienceReward, int experience, float priceMultiplier, boolean ignoreDiscounts) {
++        this(result, uses, maxUses, experienceReward, experience, priceMultiplier, 0, 0, ignoreDiscounts);
+     }
+ 
+     public CraftMerchantRecipe(ItemStack result, int uses, int maxUses, boolean experienceReward, int experience, float priceMultiplier, int demand, int specialPrice) {
+-        super(result, uses, maxUses, experienceReward, experience, priceMultiplier, demand, specialPrice);
++        this(result, uses, maxUses, experienceReward, experience, priceMultiplier, demand, specialPrice, false);
++    }
++    public CraftMerchantRecipe(ItemStack result, int uses, int maxUses, boolean experienceReward, int experience, float priceMultiplier, int demand, int specialPrice, boolean ignoreDiscounts) {
++        super(result, uses, maxUses, experienceReward, experience, priceMultiplier, demand, specialPrice, ignoreDiscounts);
++        // Paper end
+         this.handle = new net.minecraft.world.item.trading.MerchantOffer(
+                 new ItemCost(Items.AIR),
+                 Optional.empty(),
+@@ -36,6 +44,7 @@ public class CraftMerchantRecipe extends MerchantRecipe {
+                 experience,
+                 priceMultiplier,
+                 demand,
++                ignoreDiscounts, // Paper - add ignoreDiscounts param
+                 this
+         );
+         this.setSpecialPrice(specialPrice);
+@@ -112,6 +121,18 @@ public class CraftMerchantRecipe extends MerchantRecipe {
+         this.handle.priceMultiplier = priceMultiplier;
+     }
+ 
++    // Paper start
++    @Override
++    public boolean shouldIgnoreDiscounts() {
++        return this.handle.ignoreDiscounts;
++    }
++
++    @Override
++    public void setIgnoreDiscounts(boolean ignoreDiscounts) {
++        this.handle.ignoreDiscounts = ignoreDiscounts;
++    }
++    // Paper end
++
+     public net.minecraft.world.item.trading.MerchantOffer toMinecraft() {
+         List<ItemStack> ingredients = this.getIngredients();
+         Preconditions.checkState(!ingredients.isEmpty(), "No offered ingredients");
+@@ -128,7 +149,7 @@ public class CraftMerchantRecipe extends MerchantRecipe {
+         if (recipe instanceof CraftMerchantRecipe) {
+             return (CraftMerchantRecipe) recipe;
+         } else {
+-            CraftMerchantRecipe craft = new CraftMerchantRecipe(recipe.getResult(), recipe.getUses(), recipe.getMaxUses(), recipe.hasExperienceReward(), recipe.getVillagerExperience(), recipe.getPriceMultiplier(), recipe.getDemand(), recipe.getSpecialPrice());
++            CraftMerchantRecipe craft = new CraftMerchantRecipe(recipe.getResult(), recipe.getUses(), recipe.getMaxUses(), recipe.hasExperienceReward(), recipe.getVillagerExperience(), recipe.getPriceMultiplier(), recipe.getDemand(), recipe.getSpecialPrice(), recipe.shouldIgnoreDiscounts()); // Paper - shouldIgnoreDiscounts
+             craft.setIngredients(recipe.getIngredients());
+ 
+             return craft;