31 lines
1.3 KiB
C#
31 lines
1.3 KiB
C#
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namespace Theriapolis.Core.Persistence.SaveMigrations;
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/// <summary>
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/// Phase 6.5 M0 — additive migration from save schema v6 (Phase 6 ship) to
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/// v7 (Phase 6.5 levelling). Non-destructive: every v6 field carries over
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/// unchanged. The new <see cref="PlayerCharacterState.SubclassId"/>,
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/// <see cref="PlayerCharacterState.LearnedFeatureIds"/>, and
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/// <see cref="PlayerCharacterState.LevelUpHistory"/> default-initialise
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/// to empty values by the constructor, so this migration just bumps the
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/// header version.
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///
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/// Phase-6 saves had no level-up history (every character stayed at level
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/// 1, Xp = 0). On load they continue to be valid level-1 characters; the
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/// player can immediately start earning XP and levelling up under the new
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/// rules.
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/// </summary>
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public sealed class V6ToV7Migration : ISaveMigration
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{
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public int FromVersion => 6;
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public int ToVersion => 7;
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public void Apply(SaveHeader header, SaveBody body)
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{
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// No data translation needed. PlayerCharacterState's new fields
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// (SubclassId, LearnedFeatureIds, LevelUpHistory) default-initialise
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// to empty in their record, and SaveCodec.ReadCharacter handles
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// missing-section bytes via the EOS-check pattern Phase 5 already
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// established. Pure version bump.
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}
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}
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