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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_communal.json
+13 -2
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@@ -8,6 +8,17 @@
"base_dc": 10,
"cast_time": "standard",
"spell_resistance": false,
"effects": [],
"description": "Functions like protection from evil (+2 deflection to AC and +2 resistance on saves vs evil creatures, protection from mental control), except the 1 min/level duration is divided in 1-minute intervals among the touched creatures. Will negates (harmless). Alignment-restricted bonuses and duration-sharing are not modeled, so 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-communal.md: functions like protection from evil - each touched creature gains the +2 deflection bonus to AC and +2 resistance bonus on saves against attacks or effects created by evil creatures (gated on the attacker/caster alignment via condition attacker_is_evil, never applying against a non-evil source). Will negates (harmless), spell resistance no. Not modeled: the SRD duration split - \"you divide the duration in 1-minute intervals among the creatures touched\" - the engine gives every touched creature the same fixed duration as protection from evil (1 min/level approximated as 10 rounds each) instead of draining one shared pool; and the mental-control suppression clause of the base spell (see protection_from_evil.json)."
}