557eb7ef6b
Extract reset, selection, entered-world, and route construction behind LiveSessionHost while preserving the sole LiveSessionController authority. Retain partial route and subscription cleanup for retry, and replace the embedded ACE-only shortcut with the exact named-retail unsigned skill formula. Co-authored-by: Codex <codex@openai.com>
72 lines
2.2 KiB
C#
72 lines
2.2 KiB
C#
using DatReaderWriter.DBObjs;
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using DatReaderWriter.Types;
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namespace AcDream.App.Net;
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/// <summary>
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/// Exact unsigned formula used by retail <c>SkillFormula::Calculate @
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/// 0x00591960</c>. DAT reader fields are signed storage views, so their bits
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/// are deliberately reinterpreted as retail's unsigned W/X/Y/Z words.
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/// </summary>
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internal static class RetailSkillFormula
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{
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public static bool TryCalculate(
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SkillFormula formula,
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uint attribute1,
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uint attribute2,
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out uint result)
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{
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ArgumentNullException.ThrowIfNull(formula);
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uint divisor = unchecked((uint)formula.Divisor);
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if (divisor == 0u)
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{
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result = 0u;
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return false;
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}
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uint x = unchecked((uint)formula.Attribute1Multiplier);
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uint y = unchecked((uint)formula.Attribute2Multiplier);
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uint w = unchecked((uint)formula.AdditiveBonus);
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uint numerator = unchecked(x * attribute1 + y * attribute2 + w);
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result = (uint)Math.Floor((double)numerator / divisor + 0.5d);
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return true;
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}
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}
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/// <summary>
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/// Named live-session resolver for the attribute contribution to one skill.
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/// Table lookup and missing-property policy stay separate from retail math.
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/// </summary>
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internal sealed class LiveSkillCreditResolver(SkillTable? skillTable)
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{
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public uint Resolve(
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uint skillId,
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IReadOnlyDictionary<uint, uint> attributeCurrents)
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{
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ArgumentNullException.ThrowIfNull(attributeCurrents);
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if (skillTable?.Skills is null
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|| !skillTable.Skills.TryGetValue(
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(DatReaderWriter.Enums.SkillId)skillId,
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out var skillBase))
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{
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return 0u;
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}
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SkillFormula formula = skillBase.Formula;
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attributeCurrents.TryGetValue(
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(uint)formula.Attribute1,
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out uint attribute1);
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attributeCurrents.TryGetValue(
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(uint)formula.Attribute2,
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out uint attribute2);
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return RetailSkillFormula.TryCalculate(
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formula,
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attribute1,
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attribute2,
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out uint result)
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? result
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: 0u;
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}
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}
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