From 2950a567d8405d5dda8b7de4266473cac53c873c Mon Sep 17 00:00:00 2001
From: leriomaggio <valerio.maggio@gmail.com>
Date: Sun, 22 Aug 2021 23:26:19 +0100
Subject: [PATCH] New Method to filter a card pool based on a Predicate

This method will be used during the validation of each deck section.
---
 .../src/main/java/forge/deck/CardPool.java       | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/forge-core/src/main/java/forge/deck/CardPool.java b/forge-core/src/main/java/forge/deck/CardPool.java
index 72fe0a22d4a..a4b4145c149 100644
--- a/forge-core/src/main/java/forge/deck/CardPool.java
+++ b/forge-core/src/main/java/forge/deck/CardPool.java
@@ -457,4 +457,20 @@ public class CardPool extends ItemPool<PaperCard> {
         }
         return filteredPool;
     }
+
+    /**
+     * Applies a predicate to this CardPool's cards.
+     * @param predicate the Predicate to apply to this CardPool
+     * @return a new CardPool made from this CardPool with only the cards that agree with the provided Predicate
+     */
+    public CardPool getFilteredPoolWithCardsCount(Predicate<PaperCard> predicate){
+        CardPool filteredPool = new CardPool();
+        for(Entry<PaperCard, Integer> entry : this.items.entrySet()){
+            PaperCard pc = entry.getKey();
+            int count = entry.getValue();
+            if(predicate.apply(pc))
+                filteredPool.add(pc, count);
+        }
+        return filteredPool;
+    }
 }