base mod created

build/tmp/recompileMc/sources/net/minecraft/util/WeightedRandom.java

@@ -0,0 +1,77 @@
+package net.minecraft.util;
+
+import java.util.List;
+import java.util.Random;
+
+public class WeightedRandom
+{
+    /**
+     * Returns the total weight of all items in a collection.
+     */
+    public static int getTotalWeight(List <? extends WeightedRandom.Item > collection)
+    {
+        int i = 0;
+        int j = 0;
+
+        for (int k = collection.size(); j < k; ++j)
+        {
+            WeightedRandom.Item weightedrandom$item = collection.get(j);
+            i += weightedrandom$item.itemWeight;
+        }
+
+        return i;
+    }
+
+    /**
+     * Returns a random choice from the input items, with a total weight value.
+     */
+    public static <T extends WeightedRandom.Item> T getRandomItem(Random random, List<T> collection, int totalWeight)
+    {
+        if (totalWeight <= 0)
+        {
+            throw new IllegalArgumentException();
+        }
+        else
+        {
+            int i = random.nextInt(totalWeight);
+            return (T)getRandomItem(collection, i);
+        }
+    }
+
+    public static <T extends WeightedRandom.Item> T getRandomItem(List<T> collection, int weight)
+    {
+        int i = 0;
+
+        for (int j = collection.size(); i < j; ++i)
+        {
+            T t = collection.get(i);
+            weight -= t.itemWeight;
+
+            if (weight < 0)
+            {
+                return t;
+            }
+        }
+
+        return (T)null;
+    }
+
+    /**
+     * Returns a random choice from the input items.
+     */
+    public static <T extends WeightedRandom.Item> T getRandomItem(Random random, List<T> collection)
+    {
+        return (T)getRandomItem(random, collection, getTotalWeight(collection));
+    }
+
+    public static class Item
+        {
+            /** The Weight is how often the item is chosen(higher number is higher chance(lower is lower)) */
+            public int itemWeight;
+
+            public Item(int itemWeightIn)
+            {
+                this.itemWeight = itemWeightIn;
+            }
+        }
+}