Terraria 1.4.0.5 Source Code

GameContent/ItemDropRules/OneFromRulesRule.cs

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+// Decompiled with JetBrains decompiler
+// Type: Terraria.GameContent.ItemDropRules.OneFromRulesRule
+// Assembly: Terraria, Version=1.4.0.5, Culture=neutral, PublicKeyToken=null
+// MVID: 67F9E73E-0A81-4937-A22C-5515CD405A83
+// Assembly location: C:\Users\mikeyisbaeyt\Downloads\depotdownloader-2.4.5\depots\105601\6707058\Terraria.exe
+
+using System.Collections.Generic;
+
+namespace Terraria.GameContent.ItemDropRules
+{
+  public class OneFromRulesRule : IItemDropRule, INestedItemDropRule
+  {
+    private IItemDropRule[] _options;
+    private int _outOfY;
+
+    public List<IItemDropRuleChainAttempt> ChainedRules { get; private set; }
+
+    public OneFromRulesRule(int outOfY, params IItemDropRule[] options)
+    {
+      this._outOfY = outOfY;
+      this._options = options;
+      this.ChainedRules = new List<IItemDropRuleChainAttempt>();
+    }
+
+    public bool CanDrop(DropAttemptInfo info) => true;
+
+    public ItemDropAttemptResult TryDroppingItem(DropAttemptInfo info) => new ItemDropAttemptResult()
+    {
+      State = ItemDropAttemptResultState.DidNotRunCode
+    };
+
+    public ItemDropAttemptResult TryDroppingItem(
+      DropAttemptInfo info,
+      ItemDropRuleResolveAction resolveAction)
+    {
+      if (info.rng.Next(this._outOfY) == 0)
+      {
+        int index = info.rng.Next(this._options.Length);
+        ItemDropAttemptResult dropAttemptResult = resolveAction(this._options[index], info);
+        return new ItemDropAttemptResult()
+        {
+          State = ItemDropAttemptResultState.Success
+        };
+      }
+      return new ItemDropAttemptResult()
+      {
+        State = ItemDropAttemptResultState.FailedRandomRoll
+      };
+    }
+
+    public void ReportDroprates(List<DropRateInfo> drops, DropRateInfoChainFeed ratesInfo)
+    {
+      float personalDropRate = 1f / (float) this._outOfY;
+      float multiplier = 1f / (float) this._options.Length * (personalDropRate * ratesInfo.parentDroprateChance);
+      for (int index = 0; index < this._options.Length; ++index)
+        this._options[index].ReportDroprates(drops, ratesInfo.With(multiplier));
+      Chains.ReportDroprates(this.ChainedRules, personalDropRate, drops, ratesInfo);
+    }
+  }
+}