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feat(rules): alignment-gated protection from evil/law wards via attacker context

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Add attacker-alignment modifier conditions (attacker_is_evil/lawful/good/
chaotic) evaluated against an optional attacker context threaded through
_stat_modifiers/_modifier_condition_holds, _attack_ac_mods (resolve_attack
AC path), resolve_save and _area_save (spell save paths), plus the fear
aura. Without a source in scope the condition is False, so existing rolls
are untouched (golden transcripts bit-identical).

Give the four protection_from_evil/law(+communal) JSONs their SRD buff:
+2 deflection to AC and +2 resistance on fort/ref/will, gated on the
attacker/caster alignment (SRD: bonuses apply 'against attacks or effects
created by evil creatures'); duration 1 min/level approximated as 10
rounds (engine convention). Descriptions document the unmodeled mental-
control suppression and communal duration-split clauses. Level/range/
save/SR verified against the KB.
This commit is contained in:
Thien An
2026-09-20 12:57:29 +02:00
parent 6a18d456f6
commit 3be22b9c55
8 changed files with 452 additions and 22 deletions
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data/spells/protection_from_evil.json
+13 -2
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@@ -8,6 +8,17 @@
"base_dc": 10,
"cast_time": "standard",
"spell_resistance": false,
"effects": [],
"description": "A barrier wards the subject from evil for 1 min/level: +2 deflection bonus to AC and +2 resistance bonus on saves against attacks and effects created by evil creatures, renewed saves and suppression of mental control, and lawful summoned evil creatures cannot touch it. Will negates (harmless). The engine has no alignment system, so alignment-restricted bonuses cannot be modeled and the spell has no mechanical effects here."
"effects": [
{
"type": "buff",
"modifiers": [
{ "target": "ac", "value": 2, "bonus_type": "deflection", "condition": "attacker_is_evil" },
{ "target": "fort", "value": 2, "bonus_type": "resistance", "condition": "attacker_is_evil" },
{ "target": "ref", "value": 2, "bonus_type": "resistance", "condition": "attacker_is_evil" },
{ "target": "will", "value": 2, "bonus_type": "resistance", "condition": "attacker_is_evil" }
],
"duration_rounds": 10
}
],
"description": "SRD spells/protection-from-evil.md: a barrier wards the subject from evil for 1 min./level. The subject gains a +2 deflection bonus to AC and a +2 resistance bonus on saves - the exact SRD wording: \"+2 deflection bonus to AC and a +2 resistance bonus on saves against attacks or effects created by evil creatures\" - so both bonuses are gated on the attacker/caster alignment (condition attacker_is_evil) and never apply against a creature that is not evil. Will negates (harmless), spell resistance no. Duration 1 min/level approximated as 10 rounds (engine convention for 1-minute durations). Not modeled: the SRD's second effect (immediate renewed saving throw with a +2 morale bonus against mental-control spells and effects, suppression for the duration, immunity to new attempts) - the engine has no mental-control tracking to suppress; and the third effect (evil summoned creatures cannot touch the warded creature) - the engine has no summoned-subtype contact restriction."
}