Chains.cs

Go to the documentation of this file.

using System.Collections.Generic;
 
namespace Terraria.GameContent.ItemDropRules;
 
public static class Chains
{
    public class TryIfFailedRandomRoll : IItemDropRuleChainAttempt
    {
        public bool hideLootReport;
 
        public IItemDropRule RuleToChain { get; private set; }
 
        public TryIfFailedRandomRoll(IItemDropRule rule, bool hideLootReport = false)
        {
            RuleToChain = rule;
            this.hideLootReport = hideLootReport;
        }
 
        public bool CanChainIntoRule(ItemDropAttemptResult parentResult)
        {
            return parentResult.State == ItemDropAttemptResultState.FailedRandomRoll;
        }
 
        public void ReportDroprates(float personalDropRate, List<DropRateInfo> drops, DropRateInfoChainFeed ratesInfo)
        {
            if (!hideLootReport)
            {
                RuleToChain.ReportDroprates(drops, ratesInfo.With(1f - personalDropRate));
            }
        }
    }
 
    public class TryIfSucceeded : IItemDropRuleChainAttempt
    {
        public bool hideLootReport;
 
        public IItemDropRule RuleToChain { get; private set; }
 
        public TryIfSucceeded(IItemDropRule rule, bool hideLootReport = false)
        {
            RuleToChain = rule;
            this.hideLootReport = hideLootReport;
        }
 
        public bool CanChainIntoRule(ItemDropAttemptResult parentResult)
        {
            return parentResult.State == ItemDropAttemptResultState.Success;
        }
 
        public void ReportDroprates(float personalDropRate, List<DropRateInfo> drops, DropRateInfoChainFeed ratesInfo)
        {
            if (!hideLootReport)
            {
                RuleToChain.ReportDroprates(drops, ratesInfo.With(personalDropRate));
            }
        }
    }
 
    public class TryIfDoesntFillConditions : IItemDropRuleChainAttempt
    {
        public bool hideLootReport;
 
        public IItemDropRule RuleToChain { get; private set; }
 
        public TryIfDoesntFillConditions(IItemDropRule rule, bool hideLootReport = false)
        {
            RuleToChain = rule;
            this.hideLootReport = hideLootReport;
        }
 
        public bool CanChainIntoRule(ItemDropAttemptResult parentResult)
        {
            return parentResult.State == ItemDropAttemptResultState.DoesntFillConditions;
        }
 
        public void ReportDroprates(float personalDropRate, List<DropRateInfo> drops, DropRateInfoChainFeed ratesInfo)
        {
            if (!hideLootReport)
            {
                RuleToChain.ReportDroprates(drops, ratesInfo.With(personalDropRate));
            }
        }
    }
 
    public static void ReportDroprates(List<IItemDropRuleChainAttempt> ChainedRules, float personalDropRate, List<DropRateInfo> drops, DropRateInfoChainFeed ratesInfo)
    {
        foreach (IItemDropRuleChainAttempt ChainedRule in ChainedRules)
        {
            ChainedRule.ReportDroprates(personalDropRate, drops, ratesInfo);
        }
    }
 
    public static IItemDropRule OnFailedRoll(this IItemDropRule rule, IItemDropRule ruleToChain, bool hideLootReport = false)
    {
        rule.ChainedRules.Add(new TryIfFailedRandomRoll(ruleToChain, hideLootReport));
        return ruleToChain;
    }
 
    public static IItemDropRule OnSuccess(this IItemDropRule rule, IItemDropRule ruleToChain, bool hideLootReport = false)
    {
        rule.ChainedRules.Add(new TryIfSucceeded(ruleToChain, hideLootReport));
        return ruleToChain;
    }
 
    public static IItemDropRule OnFailedConditions(this IItemDropRule rule, IItemDropRule ruleToChain, bool hideLootReport = false)
    {
        rule.ChainedRules.Add(new TryIfDoesntFillConditions(ruleToChain, hideLootReport));
        return ruleToChain;
    }
}