fix(combat): single roll to escape grapple

tests/test_maneuvers.py

@@ -8,6 +8,8 @@ it (effectively disarmed). See the plan task-12.
 from __future__ import annotations
 
 from pf1e_simulator.combat import CombatantState, CombatEngine
+from pf1e_simulator.conditions import CONDITIONS_BY_NAME
+from pf1e_simulator.effects import ActiveCondition
 from pf1e_simulator.grid import Grid
 from pf1e_simulator.map import MapSpec, TerrainType
 from pf1e_simulator.models import (
@@ -17,6 +19,7 @@ from pf1e_simulator.models import (
     Combatant,
     DamageComponent,
     Saves,
+    SkillRank,
 )
 from pf1e_simulator.rng import ScriptedRng
 
@@ -91,3 +94,25 @@ def test_sunder_destroys_weapon_and_disarms() -> None:
     assert "b-w" in b.weapon_broken
     assert engine.weapon_for(b, a) is None
     assert any(c.condition.name == "disarmed" for c in b.active_conditions)
+
+
+def test_escape_from_grapple_consumes_single_d20() -> None:
+    a_spec = make_combatant("a", attack_bonus=2).model_copy(
+        update={"skills": {"escape_artist": SkillRank(rank=10)}}
+    )
+    b_spec = make_combatant("b")
+    a = make_state(a_spec, "players", (1, 1))
+    b = make_state(b_spec, "monsters", (1, 2))
+    a.active_conditions.append(
+        ActiveCondition(
+            condition=CONDITIONS_BY_NAME["grappled"],
+            rounds_left=1,
+            source="test",
+        )
+    )
+    a.grappled_with = b_spec.id
+    engine = make_engine([20], [a, b])
+    engine._maneuver_escape(a, b)
+    assert not engine._rng._queue
+    assert a.grappled_with is None
+    assert not any(c.condition.name == "grappled" for c in a.active_conditions)