ctan
f6292f8bdc
- arcane_caster true: misty (Magus/Bard sheet class), nairda (Witch/ Sorcerer), thrune_agent (Human magus 8, KB bestiary/thrune-agent.md); lich already true. False: oni (Cleric), tammara (Gunslinger/ Warpriest - divine), esha (Cavalier/Rogue, spell-like only), the companions harvie/ierlieth/jeanne/esha_mount and the remaining monsters. - armor_spell_failure stays 0 everywhere, as the effective PF1e value: nairda and the lich wear no armor (sheet note "Pas d'armure", KB lich block); misty's mithral shirt (RAW ASF 10%, magic-items/mithral-shirt .md) and the thrune agent's +1 studded leather (15%) are light armor and every spell they cast is on their own class list - magus and bard cast their own spells in light armor with no arcane spell failure (classes/magus.md, classes/bard.md). - tests/test_spell_failure.py: the lich/oni smoke test becomes a full-data table pinning all 15 combatants' flags with per-entry sources. No shipped combatant incurs a non-zero ASF; the failure roll itself stays covered by the synthetic armored-caster tests.
380 lines
14 KiB
Python
380 lines
14 KiB
Python
"""Spell components and the component-gated casting failures.
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SRD sources:
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- rules/prpg-core-rulebook/cast-a-spell.md (components V/S/M/F/DF):
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"A spellcaster who has been deafened has a 20% chance to spoil any spell
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he tries to cast if that spell has a verbal component."
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- rules/prpg-core-rulebook/arcane-spells-and-armor.md:
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"Armor restricts the complicated gestures required while casting any
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spell that has a somatic component." - arcane casters only.
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The rolls are conditional: a non-deafened caster never rolls the deafened
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d100, a divine caster (arcane_caster false) or asf=0 never rolls the ASF
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d100, and a spell without the component never triggers its roll - so the
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RNG stream stays bit-identical for everyone else. Failure burns the slot
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(mirrors the concentration-fizzle path). The roll convention mirrors the
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concealment d100: failure on d100 <= the percent.
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"""
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from __future__ import annotations
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import json
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from pathlib import Path
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from typing import TYPE_CHECKING
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import pytest
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from pf1e_simulator.combat import CombatantState, CombatEngine
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from pf1e_simulator.conditions import DEAFENED
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from pf1e_simulator.loaders.combatant import CombatantLoadError, load_combatant
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from pf1e_simulator.rng import ScriptedRng
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from pf1e_simulator.spells import (
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ConditionEffect,
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SpellSpec,
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load_spell,
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load_spell_registry,
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)
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from tests.test_observation_enriched import make_combatant, make_grid, make_state
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if TYPE_CHECKING:
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from pf1e_simulator.models import Combatant
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DATA_DIR = Path(__file__).resolve().parent.parent / "data"
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def _zap(name: str, components: frozenset[str]) -> SpellSpec:
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"""A save-less condition spell: applying it consumes no dice, so the
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test queues pin exactly the failure rolls."""
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return SpellSpec(
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name=name,
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level=1,
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school="transmutation",
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range="close",
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components=components,
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effects=(ConditionEffect(condition_name="shaken", duration_rounds=1),),
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)
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def _caster(
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spell: SpellSpec,
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*,
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arcane_caster: bool = False,
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armor_spell_failure: int = 0,
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) -> Combatant:
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base = make_combatant("caster", spells=[spell.name], spell_slots={1: 1})
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return base.model_copy(
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update={
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"arcane_caster": arcane_caster,
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"armor_spell_failure": armor_spell_failure,
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}
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)
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def _cast(
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caster: Combatant,
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spell: SpellSpec,
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rolls: list[int],
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*,
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deafened: bool = False,
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) -> tuple[CombatEngine, CombatantState, CombatantState, ScriptedRng]:
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grid = make_grid()
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c = make_state(caster, "players", (0, 0))
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t = make_state(make_combatant("foe"), "monsters", (2, 0))
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if deafened:
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c.conditions.append(DEAFENED)
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rng = ScriptedRng(rolls)
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engine = CombatEngine(rng, grid, [c, t], spell_registry={spell.name: spell})
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engine._cast_spell(c, t, spell.name)
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return engine, c, t, rng
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def _shaken(state: CombatantState) -> bool:
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return any(ac.condition.name == "shaken" for ac in state.active_conditions)
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def _transcript(engine: CombatEngine) -> str:
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return "\n".join(engine._transcript)
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def _goblin_payload() -> dict[str, object]:
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path = DATA_DIR / "monsters" / "goblin.json"
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data: dict[str, object] = json.loads(path.read_text(encoding="utf-8"))
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return data
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# ---------------------------------------------------------------------------
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# loader: the components key
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# ---------------------------------------------------------------------------
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def _write_spell(tmp_path: Path, payload: dict[str, object]) -> SpellSpec:
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path = tmp_path / "spell.json"
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path.write_text(json.dumps(payload), encoding="utf-8")
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return load_spell(path)
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def test_components_string_srd_notation(tmp_path: Path) -> None:
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"""Given: the RAW stat-block notation "V, S, M/DF"
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When: load_spell parses it
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Then: the tokens normalize to {V, S, M, DF} (slash = alternative)."""
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spell = _write_spell(
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tmp_path,
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{"name": "X", "level": 1, "school": "x", "components": "V, S, M/DF"},
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)
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assert spell.components == frozenset({"V", "S", "M", "DF"})
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def test_components_list_of_tokens(tmp_path: Path) -> None:
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spell = _write_spell(
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tmp_path,
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{"name": "X", "level": 1, "school": "x", "components": ["v", "S"]},
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)
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assert spell.components == frozenset({"V", "S"})
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def test_components_default_empty(tmp_path: Path) -> None:
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spell = _write_spell(tmp_path, {"name": "X", "level": 1, "school": "x"})
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assert spell.components == frozenset()
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def test_components_unknown_token_rejected(tmp_path: Path) -> None:
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with pytest.raises(ValueError, match="unknown spell component"):
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_write_spell(
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tmp_path,
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{"name": "X", "level": 1, "school": "x", "components": "V, Q"},
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)
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def test_components_bad_type_rejected(tmp_path: Path) -> None:
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with pytest.raises(ValueError, match="expected list"):
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_write_spell(
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tmp_path,
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{"name": "X", "level": 1, "school": "x", "components": 3},
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)
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def test_combatant_caster_fields_load_from_json(tmp_path: Path) -> None:
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"""Given: a combatant JSON with armor_spell_failure and arcane_caster
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When: load_combatant parses it
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Then: both fields land on the model."""
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payload = _goblin_payload()
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payload["armor_spell_failure"] = 25
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payload["arcane_caster"] = True
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path = tmp_path / "armored.json"
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path.write_text(json.dumps(payload), encoding="utf-8")
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loaded = load_combatant(path)
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assert loaded.armor_spell_failure == 25
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assert loaded.arcane_caster is True
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def test_armor_spell_failure_out_of_bounds_rejected(tmp_path: Path) -> None:
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payload = _goblin_payload()
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payload["armor_spell_failure"] = 101
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path = tmp_path / "bad.json"
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path.write_text(json.dumps(payload), encoding="utf-8")
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with pytest.raises(CombatantLoadError, match="armor_spell_failure"):
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load_combatant(path)
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# ---------------------------------------------------------------------------
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# deafened + verbal component: 20% spoil chance
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# ---------------------------------------------------------------------------
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def test_deafened_verbal_fails_at_threshold() -> None:
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"""d100 = 20 <= 20: the spell is spoiled, the slot stays spent, no
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effect lands."""
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spell = _zap("Buzz", frozenset({"V"}))
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caster = _caster(spell)
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engine, c, t, rng = _cast(caster, spell, [20], deafened=True)
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assert _shaken(t) is False
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assert c.spell_slots_left[1] == 0
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assert "casting failed (deafened)" in _transcript(engine)
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assert len(rng._queue) == 0
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def test_deafened_verbal_succeeds_above_threshold() -> None:
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spell = _zap("Buzz", frozenset({"V"}))
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caster = _caster(spell)
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engine, c, t, rng = _cast(caster, spell, [21], deafened=True)
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assert _shaken(t) is True
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assert c.spell_slots_left[1] == 0
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assert "casting failed (deafened)" not in _transcript(engine)
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assert len(rng._queue) == 0
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def test_deafened_without_verbal_never_rolls() -> None:
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"""A spell with no V component: the deafened caster casts it with no
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roll - the RNG stream is untouched."""
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spell = _zap("Quiet", frozenset({"S"}))
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caster = _caster(spell)
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_engine, _c, t, rng = _cast(caster, spell, [], deafened=True)
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assert _shaken(t) is True
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assert len(rng._queue) == 0
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def test_not_deafened_with_verbal_never_rolls() -> None:
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spell = _zap("Buzz", frozenset({"V"}))
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caster = _caster(spell)
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_engine, _c, t, rng = _cast(caster, spell, [], deafened=False)
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assert _shaken(t) is True
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assert len(rng._queue) == 0
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# ---------------------------------------------------------------------------
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# arcane + somatic + armor: ASF percent
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# ---------------------------------------------------------------------------
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def test_arcane_somatic_fails_at_asf_threshold() -> None:
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"""d100 = 25 <= ASF 25: the spell is spoiled, slot spent, no effect."""
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spell = _zap("Gesticulate", frozenset({"S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=25)
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engine, c, t, rng = _cast(caster, spell, [25])
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assert _shaken(t) is False
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assert c.spell_slots_left[1] == 0
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assert "arcane spell failure" in _transcript(engine)
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assert len(rng._queue) == 0
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def test_arcane_somatic_succeeds_above_asf() -> None:
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spell = _zap("Gesticulate", frozenset({"S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=25)
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engine, _c, t, rng = _cast(caster, spell, [26])
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assert _shaken(t) is True
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assert "arcane spell failure" not in _transcript(engine)
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assert len(rng._queue) == 0
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def test_divine_caster_never_rolls_asf() -> None:
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"""arcane_caster false with armor_spell_failure 35: no roll, ever."""
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spell = _zap("Gesticulate", frozenset({"S"}))
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caster = _caster(spell, arcane_caster=False, armor_spell_failure=35)
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_engine, _c, t, rng = _cast(caster, spell, [])
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assert _shaken(t) is True
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assert len(rng._queue) == 0
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def test_zero_asf_never_rolls() -> None:
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spell = _zap("Gesticulate", frozenset({"S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=0)
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_engine, _c, t, rng = _cast(caster, spell, [])
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assert _shaken(t) is True
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assert len(rng._queue) == 0
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def test_somatic_free_spell_never_rolls_asf() -> None:
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"""An arcane caster in heavy armor casts a V-only spell with no ASF
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roll (SRD: "If a spell doesn't have a somatic component, an arcane
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spellcaster can cast it with no arcane spell failure chance")."""
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spell = _zap("Chant", frozenset({"V"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=45)
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_engine, _c, t, rng = _cast(caster, spell, [])
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assert _shaken(t) is True
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assert len(rng._queue) == 0
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def test_deafened_arcane_both_rolls_in_order() -> None:
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"""V+S spell, deafened arcane caster in armor: the deafened d100 is
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rolled first and passes, then the ASF d100 spoils the spell."""
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spell = _zap("Incant", frozenset({"V", "S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=30)
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engine, c, t, rng = _cast(caster, spell, [50, 10], deafened=True)
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assert _shaken(t) is False
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assert c.spell_slots_left[1] == 0
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transcript = _transcript(engine)
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assert "arcane spell failure: d100(10) <= 30%" in transcript
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assert "casting failed (deafened)" not in transcript
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assert len(rng._queue) == 0
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def test_deafened_failure_short_circuits_asf() -> None:
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"""The deafened roll spoils the spell before the ASF die is touched:
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exactly one d100 consumed."""
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spell = _zap("Incant", frozenset({"V", "S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=30)
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_engine, _c, t, rng = _cast(caster, spell, [5], deafened=True)
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assert _shaken(t) is False
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assert len(rng._queue) == 0
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# ---------------------------------------------------------------------------
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# observation: the new keys
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# ---------------------------------------------------------------------------
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def test_observation_exposes_components_and_caster_fields() -> None:
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spell = _zap("Incant", frozenset({"V", "S"}))
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caster = _caster(spell, arcane_caster=True, armor_spell_failure=15)
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c = make_state(caster, "players", (0, 0))
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t = make_state(make_combatant("foe"), "monsters", (2, 0))
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engine = CombatEngine(
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ScriptedRng([]), make_grid(), [c, t], spell_registry={spell.name: spell}
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)
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obs = engine._build_observation(c).to_dict()
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hero = next(x for x in obs["combatants"] if x["id"] == "caster")
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assert hero["arcane_caster"] is True
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assert hero["armor_spell_failure"] == 15
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(snap,) = hero["spells"]
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assert snap["components"] == ("S", "V")
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json.dumps(obs)
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def test_combatant_caster_flags_and_asf_match_sheets() -> None:
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"""Smoke test on the shipped data, one entry per combatant JSON.
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arcane_caster follows the sheet class (fiches_personnages identity.classes
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/ bestiary KB): magus/bard/witch/sorcerer/wizard true, divine and
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non-casters false. armor_spell_failure is the EFFECTIVE percent:
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- lich: no armor (KB bestiary/lich.json, unarmored skeletal body).
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- misty: mithral shirt (sheet combat.ac note "+6 mithral shirt",
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light armor, RAW ASF 10%) but every spell she knows is a bard or
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magus spell and both classes cast their own-list spells in light
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armor with no ASF (classes/bard.md, classes/magus.md) -> 0.
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- nairda: no armor (sheet combat.ac note "Pas d'armure") -> 0.
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- thrune_agent: +1 studded leather (KB bestiary/thrune-agent.md gear,
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light armor) but all its spells are magus spells and a magus casts
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magus spells in light armor with no ASF (classes/magus.md) -> 0.
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"""
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expectations: dict[str, tuple[bool, int]] = {
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"pcs/misty.json": (True, 0),
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"pcs/nairda.json": (True, 0),
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"pcs/oni.json": (False, 0),
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"pcs/tammara.json": (False, 0),
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"pcs/esha.json": (False, 0),
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"pcs/esha_mount.json": (False, 0),
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"pcs/harvie.json": (False, 0),
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"pcs/ierlieth.json": (False, 0),
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"pcs/jeanne.json": (False, 0),
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"monsters/lich.json": (True, 0),
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"monsters/thrune_agent.json": (True, 0),
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"monsters/goblin.json": (False, 0),
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"monsters/orc.json": (False, 0),
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"monsters/celestial_wolf.json": (False, 0),
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"monsters/giant_belostomatid.json": (False, 0),
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}
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for rel, (arcane, asf) in expectations.items():
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loaded = load_combatant(DATA_DIR / rel)
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assert loaded.arcane_caster is arcane, rel
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assert loaded.armor_spell_failure == asf, rel
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def test_registry_spells_declare_kb_components() -> None:
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"""Every shipped spell encodes its KB Components line (V/S/M/F/DF
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tokens, material/focus descriptions dropped) except Create Alcool,
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whose SRD entry is not in the KB yet."""
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registry = load_spell_registry(DATA_DIR / "spells")
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assert registry
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for name, spell in registry.items():
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if name == "Create Alcool":
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assert spell.components == frozenset()
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continue
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assert spell.components, name
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# spot-checks against the SRD stat blocks
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assert registry["Acid Arrow"].components == frozenset({"V", "S", "M", "F"})
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assert registry["Bless"].components == frozenset({"V", "S", "DF"})
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assert registry["Bladed Dash"].components == frozenset({"V"})
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# slash alternatives (M/DF, F/DF) expand to both tokens
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assert registry["Alarm"].components == frozenset({"V", "S", "F", "DF"})
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assert registry["Bear's Endurance"].components == frozenset({"V", "S", "M", "DF"})
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