07be994d97
Complete the retail cast-intent, target, component, enchantment, and busy-state paths; mount the DAT-authored spell bar, spellbook, component book, effects panels, and shared panel lifecycle; and add scoped input plus conformance coverage. Co-Authored-By: Codex <noreply@openai.com>
67 lines
2.6 KiB
C#
67 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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namespace AcDream.Core.Spells;
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/// <summary>
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/// Pure port of retail's ordinary in-effect registry projection:
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/// <c>CEnchantmentRegistry::GetEnchantmentsInEffect @ 0x00594540</c>,
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/// <c>GetEnchantmentsInEffectFromList @ 0x00594430</c>,
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/// <c>Duel @ 0x005942B0</c>, and <c>Enchantment::Duel @ 0x005CACE0</c>.
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/// </summary>
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public static class EnchantmentRegistryProjection
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{
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/// <summary>
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/// Merges multiplicative then additive records and retains one winner per
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/// spell category. Higher power wins; equal power is replaced only by a
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/// later start time. Vitae and cooldown registries do not participate.
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/// </summary>
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public static IReadOnlyList<ActiveEnchantmentRecord> GetEnchantmentsInEffect(
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IEnumerable<ActiveEnchantmentRecord> enchantments)
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{
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ArgumentNullException.ThrowIfNull(enchantments);
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ActiveEnchantmentRecord[] source = enchantments as ActiveEnchantmentRecord[]
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?? [.. enchantments];
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var result = new List<ActiveEnchantmentRecord>();
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DuelList(source, bucket: 1u, result);
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DuelList(source, bucket: 2u, result);
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return result;
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}
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private static void DuelList(
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IReadOnlyList<ActiveEnchantmentRecord> source,
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uint bucket,
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List<ActiveEnchantmentRecord> result)
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{
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for (int sourceIndex = 0; sourceIndex < source.Count; sourceIndex++)
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{
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ActiveEnchantmentRecord candidate = source[sourceIndex];
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if (candidate.Bucket != bucket) continue;
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int incumbentIndex = result.FindIndex(existing =>
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existing.SpellCategory == candidate.SpellCategory);
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if (incumbentIndex >= 0)
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{
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ActiveEnchantmentRecord incumbent = result[incumbentIndex];
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if (!CandidateWins(incumbent, candidate))
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continue;
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// Retail removes the losing node, then appends the winner.
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result.RemoveAt(incumbentIndex);
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}
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result.Add(candidate);
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}
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}
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private static bool CandidateWins(
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ActiveEnchantmentRecord incumbent,
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ActiveEnchantmentRecord candidate)
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{
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// Retail Enchantment::_power_level is signed int even though the wire
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// field is read as four raw bytes.
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int incumbentPower = unchecked((int)incumbent.PowerLevel);
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int candidatePower = unchecked((int)candidate.PowerLevel);
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return candidatePower > incumbentPower
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|| (candidatePower == incumbentPower
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&& candidate.StartTime > incumbent.StartTime);
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}
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}
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