Add ignore discounts API

paper-api/src/main/java/org/bukkit/inventory/MerchantRecipe.java

@@ -57,6 +57,7 @@ public class MerchantRecipe implements Recipe {
     private int demand;
     private int villagerExperience;
     private float priceMultiplier;
+    private boolean ignoreDiscounts; // Paper
 
     public MerchantRecipe(@NotNull ItemStack result, int maxUses) {
         this(result, 0, maxUses, false);
@@ -71,6 +72,15 @@ public class MerchantRecipe implements Recipe {
     }
 
     public MerchantRecipe(@NotNull ItemStack result, int uses, int maxUses, boolean experienceReward, int villagerExperience, float priceMultiplier, int demand, int specialPrice) {
+        // Paper start - add ignoreDiscounts param
+        this(result, uses, maxUses, experienceReward, villagerExperience, priceMultiplier, demand, specialPrice, false);
+    }
+    public MerchantRecipe(@NotNull ItemStack result, int uses, int maxUses, boolean experienceReward, int villagerExperience, float priceMultiplier, boolean ignoreDiscounts) {
+        this(result, uses, maxUses, experienceReward, villagerExperience, priceMultiplier, 0, 0, ignoreDiscounts);
+    }
+    public MerchantRecipe(@NotNull ItemStack result, int uses, int maxUses, boolean experienceReward, int villagerExperience, float priceMultiplier, int demand, int specialPrice, boolean ignoreDiscounts) {
+        this.ignoreDiscounts = ignoreDiscounts;
+        // Paper end
         this.result = result;
         this.uses = uses;
         this.maxUses = maxUses;
@@ -283,4 +293,20 @@ public class MerchantRecipe implements Recipe {
     public void setPriceMultiplier(float priceMultiplier) {
         this.priceMultiplier = priceMultiplier;
     }
+
+    // Paper start
+    /**
+     * @return Whether all discounts on this trade should be ignored.
+     */
+    public boolean shouldIgnoreDiscounts() {
+        return ignoreDiscounts;
+    }
+
+    /**
+     * @param ignoreDiscounts Whether all discounts on this trade should be ignored.
+     */
+    public void setIgnoreDiscounts(boolean ignoreDiscounts) {
+        this.ignoreDiscounts = ignoreDiscounts;
+    }
+    // Paper end
 }