Mechanisches Boardstärke-Modell: Statsheet aus cdragon-Exaktdaten, sqrt(eHP×DPS), Tier-Anker, Tau-Fit

A/B auf 38 Holdout-Matches: mechanical 0.724 vs legacy 0.695. Promotion durchgeführt.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

backend/tests/test_parse.py

@@ -0,0 +1,77 @@
+from tft.staticdata.parse import parse, resolve_spell
+
+RAW = {
+    "sets": {
+        "17": {
+            "name": "Set17",
+            "champions": [
+                {
+                    "apiName": "TFT17_Mage",
+                    "name": "Mage",
+                    "cost": 2,
+                    "traits": ["Caster"],
+                    "role": "Caster",
+                    "stats": {"hp": 600, "armor": 25, "magicResist": 25, "damage": 40,
+                              "attackSpeed": 0.7, "mana": 60, "initialMana": 10},
+                    "squareIcon": "ASSETS/x.TFT_Set17.tex",
+                    "ability": {
+                        "name": "Blast",
+                        "desc": "Deal <magicDamage>@ModifiedDamage@ (%i:scaleAP%)</magicDamage> magic damage.",
+                        "variables": [{"name": "Damage", "value": [0, 200, 300, 450, 700, 0, 0]}],
+                    },
+                },
+            ],
+            "traits": [
+                {
+                    "apiName": "TFT17_Caster",
+                    "name": "Caster",
+                    "icon": "ASSETS/t.tex",
+                    "effects": [
+                        {"minUnits": 2, "maxUnits": 3, "style": 1,
+                         "variables": {"BonusAP": 20.0}},
+                    ],
+                },
+            ],
+        },
+    },
+    "items": [
+        {
+            "apiName": "TFT_Item_TestSword",
+            "name": "Test Sword",
+            "composition": ["TFT_Item_A", "TFT_Item_B"],
+            "effects": {"AD": 0.35, "CritChance": 35.0},
+            "icon": "ASSETS/i.tex",
+        },
+    ],
+}
+
+
+def test_parse_keeps_effects_and_variables():
+    parsed = parse(RAW, set_override=17)
+    assert parsed["items"]["TFT_Item_TestSword"]["effects"] == {"AD": 0.35, "CritChance": 35.0}
+    bp = parsed["traits"]["TFT17_Caster"]["breakpoints"][0]
+    assert bp["variables"] == {"BonusAP": 20.0}
+
+
+def test_parse_resolves_spell_damage():
+    unit = parse(RAW, set_override=17)["units"]["TFT17_Mage"]
+    assert unit["spell_damage"] == [0, 200, 300, 450, 700, 0, 0]
+    assert unit["spell_damage_type"] == "magic"
+    assert unit["spell_scaling"] == "ap"
+
+
+def test_resolve_spell_adaptive_and_fallback():
+    adaptive = {
+        "desc": "Deal <magicDamage>@TotalDamage@</magicDamage> damage. %i:scaleAP% %i:scaleAD%",
+        "variables": [
+            {"name": "ADDamage", "value": [0, 100, 150, 225, 0, 0, 0]},
+            {"name": "APDamage", "value": [0, 50, 75, 110, 0, 0, 0]},
+        ],
+    }
+    r = resolve_spell(adaptive)
+    assert r["spell_damage"][1] == 150  # 100 + 50
+    assert r["spell_scaling"] == "both"
+
+    utility = {"desc": "Grant a shield.", "variables": [
+        {"name": "Shield", "value": [0, 300, 400, 500, 0, 0, 0]}]}
+    assert resolve_spell(utility)["spell_damage"] is None

backend/tests/test_score.py

@@ -112,7 +112,61 @@ def test_stat_mults_identical_units_are_neutral():
     assert all(m == 1.0 for m in mults.values())
 
 
-def test_stat_mult_raises_score():
+def test_stat_mult_raises_score_legacy():
+    from tft.model.score import score_board_legacy as score_board
+
     art = {**ARTIFACT, "stat_mults": {"TFT17_B": 1.1}}
     board = [{"api_name": "TFT17_B", "stars": 1, "items": []}]
     assert score_board(board, [], art) > score_board(board, [], ARTIFACT)
+
+
+def _mech_artifact():
+    from tft.model import artifact as artifact_mod
+
+    static = {
+        "meta": {"set": 17, "patch": "test"},
+        "units": {
+            "TANK": {"cost": 2, "traits": ["T_AD"], "role": "Tank",
+                     "stats": {"hp": 900, "armor": 50, "magicResist": 50, "damage": 45,
+                               "attackSpeed": 0.6, "mana": 60, "initialMana": 0},
+                     "spell_damage": None, "spell_scaling": None},
+            "CARRY": {"cost": 2, "traits": ["T_AD"], "role": "Marksman",
+                      "stats": {"hp": 600, "armor": 20, "magicResist": 20, "damage": 70,
+                                "attackSpeed": 0.8, "mana": 50, "initialMana": 0},
+                      "spell_damage": [0, 250, 375, 560, 0, 0, 0], "spell_scaling": "ad"},
+        },
+        "traits": {"T_AD": {"breakpoints": [
+            {"min_units": 2, "style": 1, "variables": {"BonusAP": 20.0}}]}},
+        "items": {"SWORD": {"effects": {"AD": 0.35}}},
+        "augments": {},
+    }
+    return artifact_mod.build(static)
+
+
+def test_mechanical_balanced_beats_lopsided():
+    from tft.model.score import score_mechanical
+    art = _mech_artifact()
+    balanced = [{"api_name": "TANK", "stars": 1, "items": []},
+                {"api_name": "CARRY", "stars": 1, "items": []}]
+    tanks = [{"api_name": "TANK", "stars": 1, "items": []} for _ in range(2)]
+    assert score_mechanical(balanced, [], art) > score_mechanical(tanks, [], art)
+
+
+def test_mechanical_items_and_stars_raise_strength():
+    from tft.model.score import score_mechanical
+    art = _mech_artifact()
+    base = [{"api_name": "CARRY", "stars": 1, "items": []}]
+    starred = [{"api_name": "CARRY", "stars": 2, "items": []}]
+    equipped = [{"api_name": "CARRY", "stars": 1, "items": ["SWORD"]}]
+    assert score_mechanical(starred, [], art) > score_mechanical(base, [], art)
+    assert score_mechanical(equipped, [], art) > score_mechanical(base, [], art)
+
+
+def test_mechanical_recognized_trait_buffs_stats():
+    from tft.model.score import score_mechanical
+    art = _mech_artifact()
+    pair = [{"api_name": "TANK", "stars": 1, "items": []},
+            {"api_name": "CARRY", "stars": 1, "items": []}]
+    solo_sum = (score_mechanical(pair[:1], [], art)
+                + score_mechanical(pair[1:], [], art))
+    assert score_mechanical(pair, [], art) > solo_sum

backend/tests/test_statsheet.py

@@ -0,0 +1,73 @@
+import pytest
+
+from tft.model import statsheet
+
+
+def unit(spell=None, scaling="ap", **overrides):
+    stats = {"hp": 700, "armor": 30, "magicResist": 30, "damage": 50,
+             "attackSpeed": 0.7, "mana": 60, "initialMana": 10,
+             "critChance": 0.25, "critMultiplier": 1.4}
+    stats.update(overrides)
+    return {"stats": stats, "spell_damage": spell, "spell_scaling": scaling}
+
+
+ITEMS = {
+    "sword": {"effects": {"AD": 0.35, "CritChance": 35.0}},
+    "vest": {"effects": {"Armor": 20.0}},
+    "rod": {"effects": {"AP": 10.0}},
+    "unmodeled": {"effects": {"BurnPercent": 1.0}},
+}
+
+
+def test_star_scaling():
+    one = statsheet.unit_stats(unit(), 1, [], ITEMS, None, None)
+    two = statsheet.unit_stats(unit(), 2, [], ITEMS, None, None)
+    assert two["ehp"] == pytest.approx(one["ehp"] * 1.8)
+    assert two["dps"] == pytest.approx(one["dps"] * 1.5)
+
+
+def test_spell_damage_uses_star_index_and_ap():
+    spell = [0, 200, 300, 450, 0, 0, 0]
+    bare = statsheet.unit_stats(unit(spell=spell), 1, [], ITEMS, None, None)
+    with_rod = statsheet.unit_stats(unit(spell=spell), 1, ["rod"], ITEMS, None, None)
+    no_spell = statsheet.unit_stats(unit(), 1, [], ITEMS, None, None)
+    assert bare["dps"] > no_spell["dps"]
+    assert with_rod["dps"] > bare["dps"]  # +10 AP skaliert den Spell
+
+
+def test_items_change_profile():
+    base = statsheet.unit_stats(unit(), 1, [], ITEMS, None, None)
+    sword = statsheet.unit_stats(unit(), 1, ["sword"], ITEMS, None, None)
+    vest = statsheet.unit_stats(unit(), 1, ["vest"], ITEMS, None, None)
+    assert sword["dps"] > base["dps"]
+    assert vest["ehp"] > base["ehp"]
+    assert statsheet.item_is_modeled(ITEMS["sword"])
+    assert not statsheet.item_is_modeled(ITEMS["unmodeled"])
+
+
+def test_frontline_casts_more():
+    spell = [0, 300, 450, 700, 0, 0, 0]
+    tank = statsheet.unit_stats(unit(spell=spell), 1, [], ITEMS, None, "frontline")
+    carry = statsheet.unit_stats(unit(spell=spell), 1, [], ITEMS, None, "ad_carry")
+    assert tank["dps"] > carry["dps"]
+
+
+def test_trait_buffs_keyword_mapping():
+    traits = {
+        "T_AD": {"breakpoints": [{"min_units": 2, "style": 1,
+                                  "variables": {"BonusAD": 0.15}}]},
+        "T_Mech": {"breakpoints": [{"min_units": 2, "style": 1,
+                                    "variables": {"Wolf_Gold": 1.0}}]},
+        "T_Skip": {"breakpoints": [{"min_units": 2, "style": 1,
+                                    "variables": {"StunDuration": 1.5}}]},
+    }
+    buffs, recognized = statsheet.trait_buffs(
+        {"T_AD": 1, "T_Mech": 1, "T_Skip": 1}, traits
+    )
+    assert recognized == {"T_AD"}
+    assert buffs["ad_pct"] == pytest.approx(0.15)
+
+
+def test_fraction_normalization():
+    assert statsheet._fraction(0.15) == 0.15
+    assert statsheet._fraction(15.0) == 0.15

backend/tft/cli.py

@@ -22,7 +22,9 @@ def main() -> None:
 
     sub.add_parser("extract", help="extract endboards from raw matches")
     sub.add_parser("build-artifact", help="build analysis.json from static data + endboards")
-    sub.add_parser("calibrate", help="backtest score vs real placements (holdout)")
+    p_cal = sub.add_parser("calibrate", help="backtest score vs real placements (holdout)")
+    p_cal.add_argument("--compare", action="store_true",
+                       help="A/B legacy vs. mechanical scorer + tau-Fit")
 
     p_auto = sub.add_parser("autoplay", help="run scripted games headless")
     p_auto.add_argument("--policy", choices=["afk", "econ"], default="econ")
@@ -81,7 +83,8 @@ def main() -> None:
     elif args.command == "calibrate":
         from tft import db
         from tft.model import artifact as artifact_mod
-        from tft.model.calibrate import calibrate
+        from tft.model.calibrate import calibrate, fit_tau
+        from tft.model.score import score_board_legacy, score_mechanical
         from tft.staticdata.fetch import load_static
 
         conn = db.connect()
@@ -89,10 +92,19 @@ def main() -> None:
         baseline_art = artifact_mod.build(load_static(), {})
         r_base = calibrate(conn, baseline_art, holdout_only=True)
         r_learned = calibrate(conn, learned_art, holdout_only=True)
-        conn.close()
         print(f"holdout matches: {r_learned['matches']}")
         print(f"spearman baseline: {r_base['mean_spearman']:.3f}")
         print(f"spearman learned:  {r_learned['mean_spearman']:.3f}")
+        if args.compare:
+            r_leg = calibrate(conn, learned_art, holdout_only=True, score_fn=score_board_legacy)
+            r_mech = calibrate(conn, learned_art, holdout_only=True, score_fn=score_mechanical)
+            delta = r_mech["mean_spearman"] - r_leg["mean_spearman"]
+            tau = fit_tau(conn, learned_art, score_mechanical)
+            print(f"A/B  legacy:     {r_leg['mean_spearman']:.3f}")
+            print(f"A/B  mechanical: {r_mech['mean_spearman']:.3f}  (delta {delta:+.3f})")
+            print(f"tau-fit (mechanical): {tau['tau']} über {tau['pairs']} Paare, "
+                  f"log-loss {tau.get('log_loss')}")
+        conn.close()
 
     elif args.command == "autoplay":
         from tft.constants.loader import load_constants

backend/tft/constants/set17.toml

@@ -75,6 +75,7 @@ hp_multiplier = 1.8
 ad_multiplier = 1.5
 
 [combat]
-# p_win = 1 / (1 + exp(-(score_a - score_b) / tau)); tau wird in M6 kalibriert.
+# p_win = 1 / (1 + exp(-(score_a - score_b) / tau)).
-tau = 0.15
+# tau = 0.28: Log-Loss-Fit über 1064 Holdout-Platzierungspaare (mechanical Scorer).
+tau = 0.28
 variance = 0.08

backend/tft/model/artifact.py

@@ -26,6 +26,29 @@ def craftable_items(static_items: dict) -> list[str]:
     return sorted(pool)
 
 
+def tier_profiles(static: dict, roles: dict) -> dict:
+    """Mittleres Mechanik-Profil (eHP/DPS, 1★, itemlos) pro Kostenstufe.
+
+    Anker für den mechanischen Scorer: Riot balanciert um die Kosten,
+    die Mechanik differenziert innerhalb der Stufe.
+    """
+    from tft.model import statsheet
+
+    by_cost: dict[int, list] = {}
+    for api, unit in static["units"].items():
+        profile = statsheet.unit_stats(
+            unit, 1, [], static["items"], None, roles.get(api)
+        )
+        by_cost.setdefault(unit["cost"], []).append(profile)
+    return {
+        str(cost): {
+            "ehp": sum(p["ehp"] for p in profiles) / len(profiles),
+            "dps": max(sum(p["dps"] for p in profiles) / len(profiles), 1.0),
+        }
+        for cost, profiles in by_cost.items()
+    }
+
+
 def build(static: dict, learned: dict | None = None, extra_meta: dict | None = None) -> dict:
     roles = {
         api: baseline.classify_role(unit) for api, unit in static["units"].items()
@@ -46,6 +69,7 @@ def build(static: dict, learned: dict | None = None, extra_meta: dict | None = N
         },
         "roles": roles,
         "stat_mults": baseline.compute_stat_mults(static["units"]),
+        "tier_profiles": tier_profiles(static, roles),
         "item_pool": craftable_items(static["items"]),
         "learned": learned or {},
     }

backend/tft/model/calibrate.py

@@ -42,10 +42,7 @@ def board_from_row(units_json: str, augments_json: str) -> tuple[list[dict], lis
     return units, json.loads(augments_json)
 
 
-def calibrate(conn, artifact: dict, holdout_only: bool = False) -> dict:
+def _holdout_scores(conn, artifact: dict, holdout_only: bool, score_fn) -> dict:
-    """Mean Spearman between board score and placement (negated: higher = better)."""
-    from tft.model.score import score_board
-
     set_number = artifact["meta"]["set"]
     where = "WHERE set_number = ?"
     if holdout_only:
@@ -59,8 +56,17 @@ def calibrate(conn, artifact: dict, holdout_only: bool = False) -> dict:
     by_match: dict[str, list] = {}
     for match_id, placement, units_json, augments_json in rows:
         board, augments = board_from_row(units_json, augments_json)
-        s = score_board(board, augments, artifact)
+        by_match.setdefault(match_id, []).append(
-        by_match.setdefault(match_id, []).append((placement, s))
+            (placement, score_fn(board, augments, artifact))
+        )
+    return by_match
+
+
+def calibrate(conn, artifact: dict, holdout_only: bool = False, score_fn=None) -> dict:
+    """Mean Spearman between board score and placement (negated: higher = better)."""
+    from tft.model.score import score_board
+
+    by_match = _holdout_scores(conn, artifact, holdout_only, score_fn or score_board)
 
     correlations = []
     for players in by_match.values():
@@ -75,3 +81,38 @@ def calibrate(conn, artifact: dict, holdout_only: bool = False) -> dict:
         "matches": n,
         "mean_spearman": sum(correlations) / n if n else 0.0,
     }
+
+
+def fit_tau(conn, artifact: dict, score_fn) -> dict:
+    """Tau per Log-Loss über alle Platzierungspaare der Holdout-Matches fitten."""
+    import math
+
+    by_match = _holdout_scores(conn, artifact, True, score_fn)
+    pairs = []
+    for players in by_match.values():
+        if len(players) < 8:
+            continue
+        for i in range(len(players)):
+            for j in range(i + 1, len(players)):
+                (pl_a, s_a), (pl_b, s_b) = players[i], players[j]
+                mean = (s_a + s_b) / 2
+                if mean <= 0:
+                    continue
+                d = (s_a - s_b) / mean
+                pairs.append((d, pl_a < pl_b))  # kleinere Platzierung = besser
+
+    if not pairs:
+        return {"tau": None, "pairs": 0}
+
+    def log_loss(tau: float) -> float:
+        eps = 1e-9
+        total = 0.0
+        for d, a_wins in pairs:
+            p = 1 / (1 + math.exp(-d / tau))
+            p = min(max(p, eps), 1 - eps)
+            total += -math.log(p if a_wins else 1 - p)
+        return total / len(pairs)
+
+    taus = [t / 100 for t in range(2, 51, 2)]
+    best = min(taus, key=log_loss)
+    return {"tau": best, "pairs": len(pairs), "log_loss": round(log_loss(best), 4)}

backend/tft/model/score.py

@@ -1,6 +1,6 @@
 """The one board-scoring entry point. Sim, bots, calibration, and UI all call this."""
 
-from tft.model import baseline
+from tft.model import baseline, statsheet
 
 
 def active_trait_tiers(board_units: list[dict], static_traits: dict, static_units: dict) -> dict:
@@ -27,16 +27,30 @@ def active_trait_tiers(board_units: list[dict], static_traits: dict, static_unit
     return tiers
 
 
-def score_board(board_units: list[dict], augments: list[str], artifact: dict) -> float:
+def _apply_shared_multipliers(total: float, board_units: list[dict], augments: list[str],
-    """board_units: [{api_name, stars, items: [item api names]}]."""
+                              learned: dict) -> float:
+    augment_mults = learned.get("augments", {})
+    for augment in augments:
+        total *= augment_mults.get(augment, 1.0)
+
+    pair_lifts = learned.get("pairs", {})
+    names = sorted({u["api_name"] for u in board_units})
+    lift_sum = sum(
+        pair_lifts.get(f"{a}|{b}", 0.0)
+        for i, a in enumerate(names)
+        for b in names[i + 1 :]
+    )
+    return total * (1 + min(max(lift_sum * 0.01, -0.10), 0.10))
+
+
+def score_board_legacy(board_units: list[dict], augments: list[str], artifact: dict) -> float:
+    """Heuristik-Scorer: Kostenwert × Multiplikatoren."""
     static_units = artifact["static"]["units"]
     static_traits = artifact["static"]["traits"]
     learned = artifact.get("learned", {})
     unit_mults = learned.get("units", {})
     item_mults = learned.get("items", {})
     trait_mults = learned.get("traits", {})
-    augment_mults = learned.get("augments", {})
-    pair_lifts = learned.get("pairs", {})
     roles = artifact.get("roles", {})
     stat_mults = artifact.get("stat_mults", {})
 
@@ -64,15 +78,75 @@ def score_board(board_units: list[dict], augments: list[str], artifact: dict) ->
         ]
         total *= trait_mults.get(f"{trait}@{ordinal}", default)
 
-    for augment in augments:
+    return _apply_shared_multipliers(total, board_units, augments, learned)
-        total *= augment_mults.get(augment, 1.0)
 
-    names = sorted({u["api_name"] for u in board_units})
+
-    lift_sum = sum(
+def score_mechanical(board_units: list[dict], augments: list[str], artifact: dict) -> float:
-        pair_lifts.get(f"{a}|{b}", 0.0)
+    """Kampf-Approximation: strength = sqrt(Σ eHP × Σ DPS) aus exakten Stats."""
-        for i, a in enumerate(names)
+    static_units = artifact["static"]["units"]
-        for b in names[i + 1 :]
+    static_items = artifact["static"]["items"]
+    static_traits = artifact["static"]["traits"]
+    learned = artifact.get("learned", {})
+    unit_mults = learned.get("units", {})
+    item_mults = learned.get("items", {})
+    trait_mults = learned.get("traits", {})
+    roles = artifact.get("roles", {})
+
+    tiers = active_trait_tiers(board_units, static_traits, static_units)
+    team_buffs, recognized = statsheet.trait_buffs(tiers, static_traits)
+    tier_profiles = artifact.get("tier_profiles", {})
+
+    # Anker: 1★ itemlos zählt exakt "Kosten" in beiden Dimensionen.
+    # Mechanik (Stats, Items, Trait-Buffs, Sterne) verschiebt relativ dazu;
+    # Extraktions-Ausreißer werden pro Stufe gekappt.
+    RATIO_CAP = (0.5, 2.0)
+
+    total_ehp = 0.0
+    total_dps = 0.0
+    for u in board_units:
+        unit = static_units.get(u["api_name"])
+        if not unit:
+            continue
+        profile = statsheet.unit_stats(
+            unit, u["stars"], u.get("items", []), static_items,
+            team_buffs, roles.get(u["api_name"]),
         )
-    total *= 1 + min(max(lift_sum * 0.01, -0.10), 0.10)
+        ref = tier_profiles.get(str(unit["cost"]))
+        base = baseline.unit_value(unit["cost"], u["stars"])
+        if ref:
+            star_ehp = statsheet.HP_STAR_MULT ** (u["stars"] - 1)
+            star_dps = statsheet.AD_STAR_MULT ** (u["stars"] - 1)
+            r_ehp = profile["ehp"] / (ref["ehp"] * star_ehp)
+            r_dps = profile["dps"] / (ref["dps"] * star_dps)
+            r_ehp = min(max(r_ehp, RATIO_CAP[0]), RATIO_CAP[1])
+            r_dps = min(max(r_dps, RATIO_CAP[0]), RATIO_CAP[1])
+        else:
+            r_ehp = r_dps = 1.0
+        mult = unit_mults.get(u["api_name"], 1.0)
+        total_ehp += mult * base * r_ehp
+        total_dps += mult * base * r_dps
 
-    return total
+    strength = (total_ehp * total_dps) ** 0.5
+
+    for trait, ordinal in tiers.items():
+        key = f"{trait}@{ordinal}"
+        if trait in recognized:
+            # Buff steckt schon in den Stats — nur gelerntes Residuum.
+            strength *= trait_mults.get(key, 1.0)
+        else:
+            default = baseline.DEFAULT_TRAIT_TIER_MULT[
+                min(ordinal, len(baseline.DEFAULT_TRAIT_TIER_MULT) - 1)
+            ]
+            strength *= trait_mults.get(key, default)
+
+    for u in board_units:
+        for item in u.get("items", []):
+            modeled = statsheet.item_is_modeled(static_items.get(item))
+            strength *= item_mults.get(item, 1.0 if modeled else baseline.DEFAULT_ITEM_MULT)
+
+    return _apply_shared_multipliers(strength, board_units, augments, learned)
+
+
+# Aktiver Scorer: mechanical (A/B 23.07.: 0.724 vs. legacy 0.695 auf 38 Holdout-Matches).
+# Legacy bleibt für `calibrate --compare` erhalten.
+score_board = score_mechanical

backend/tft/model/statsheet.py

@@ -0,0 +1,159 @@
+"""Effektive Kampfprofile aus exakten cdragon-Werten: eHP und DPS pro Unit.
+
+Konstanten spiegeln set17.toml [stars] bzw. das TFT-Mana-Modell.
+Item-Wert-Konventionen laut Datenkatalog: AD = Fraction, AP = flat (Basis 100),
+AS/CritChance = Prozentzahl, Health/Armor/MagicResist/ManaRegen = flat.
+"""
+
+import re
+
+HP_STAR_MULT = 1.8
+AD_STAR_MULT = 1.5
+MANA_PER_ATTACK = 10
+FRONTLINE_MANA_PER_SEC = 10
+CAST_RATE_CAP = 1.5
+
+MAPPED_ITEM_KEYS = ("AD", "AP", "AS", "CritChance", "Health", "Armor",
+                    "MagicResist", "ManaRegen")
+
+_TOKEN_RE = re.compile(r"[A-Z]+(?=[A-Z][a-z])|[A-Z]?[a-z]+|[A-Z]+|\d+")
+# Variablen mit diesen Tokens sind Mechanik-Parameter, keine Stat-Buffs.
+_SKIP_TOKENS = {"duration", "threshold", "rounds", "per", "num", "gold",
+                "tooltiponly", "mana", "seconds", "delay", "range", "radius"}
+
+
+def _empty_acc() -> dict:
+    return {"ad_pct": 0.0, "ap_flat": 0.0, "as_pct": 0.0, "hp_flat": 0.0,
+            "hp_pct": 0.0, "armor_flat": 0.0, "mr_flat": 0.0,
+            "crit_chance": 0.0, "dr": 0.0, "mana_regen": 0.0, "damage_amp": 0.0}
+
+
+def _apply_item_effects(item_apis: list[str], static_items: dict, acc: dict) -> None:
+    for api in item_apis:
+        effects = (static_items.get(api) or {}).get("effects") or {}
+        for key, val in effects.items():
+            if val is None:
+                continue
+            if key == "AD":
+                acc["ad_pct"] += val
+            elif key == "AP":
+                acc["ap_flat"] += val
+            elif key == "AS":
+                acc["as_pct"] += val / 100
+            elif key == "CritChance":
+                acc["crit_chance"] += val / 100
+            elif key == "Health":
+                acc["hp_flat"] += val
+            elif key == "Armor":
+                acc["armor_flat"] += val
+            elif key == "MagicResist":
+                acc["mr_flat"] += val
+            elif key == "ManaRegen":
+                acc["mana_regen"] += val
+            # alle übrigen Keys: bespoke Mechanik, bewusst ignoriert
+
+
+def item_is_modeled(item_info: dict) -> bool:
+    effects = (item_info or {}).get("effects") or {}
+    return any(effects.get(k) is not None for k in MAPPED_ITEM_KEYS)
+
+
+def _fraction(value: float) -> float:
+    """cdragon mischt Fraction (0.15) und Prozentzahl (15.0) — normalisieren."""
+    return value if abs(value) <= 1.0 else value / 100
+
+
+def trait_buffs(active_tiers: dict, static_traits: dict) -> tuple[dict, set]:
+    """Erkannte Trait-Variablen -> teamweite Stat-Buffs; Rest bleibt generisch."""
+    buffs = _empty_acc()
+    recognized: set[str] = set()
+    for trait, ordinal in active_tiers.items():
+        info = static_traits.get(trait)
+        if not info:
+            continue
+        breakpoints = info.get("breakpoints", [])
+        if ordinal - 1 >= len(breakpoints):
+            continue
+        variables = breakpoints[ordinal - 1].get("variables") or {}
+        matched = False
+        for name, value in variables.items():
+            if value is None or not isinstance(value, (int, float)):
+                continue
+            tokens = {t.lower() for t in _TOKEN_RE.findall(name)}
+            if tokens & _SKIP_TOKENS or name.startswith("{"):
+                continue
+            f = _fraction(value)
+            if "adap" in tokens:
+                buffs["ad_pct"] += f
+                buffs["ap_flat"] += f * 100
+            elif "ad" in tokens:
+                buffs["ad_pct"] += f
+            elif "ap" in tokens:
+                buffs["ap_flat"] += f * 100
+            elif "as" in tokens or "attackspeed" in tokens:
+                buffs["as_pct"] += f
+            elif "armor" in tokens:
+                buffs["armor_flat"] += value if abs(value) > 1 else value * 100
+            elif "mr" in tokens or "magicresist" in tokens or "resist" in tokens:
+                buffs["mr_flat"] += value if abs(value) > 1 else value * 100
+            elif "health" in tokens or "hp" in tokens:
+                buffs["hp_pct"] += f
+            elif "shield" in tokens or "durability" in tokens or "dr" in tokens \
+                    or ("damage" in tokens and "reduction" in tokens):
+                buffs["dr"] += f
+            elif "damageamp" in tokens or ("damage" in tokens and "amp" in tokens) \
+                    or "bonusdamage" in tokens:
+                buffs["damage_amp"] += f
+            elif "heal" in tokens or "omnivamp" in tokens:
+                buffs["dr"] += f * 0.5
+            else:
+                continue
+            matched = True
+        if matched:
+            recognized.add(trait)
+    return buffs, recognized
+
+
+def unit_stats(unit: dict, stars: int, item_apis: list[str], static_items: dict,
+               team_buffs: dict | None, role: str | None) -> dict:
+    stats = unit["stats"]
+    hp = (stats.get("hp") or 0) * HP_STAR_MULT ** (stars - 1)
+    ad = (stats.get("damage") or 0) * AD_STAR_MULT ** (stars - 1)
+    armor = stats.get("armor") or 0
+    mr = stats.get("magicResist") or 0
+    aspd = stats.get("attackSpeed") or 0
+    crit = stats.get("critChance") or 0.25
+    crit_mult = stats.get("critMultiplier") or 1.4
+    mana_gap = max((stats.get("mana") or 0) - (stats.get("initialMana") or 0), 1)
+
+    acc = _empty_acc()
+    for key, val in (team_buffs or {}).items():
+        acc[key] += val
+    _apply_item_effects(item_apis, static_items, acc)
+
+    hp = (hp + acc["hp_flat"]) * (1 + acc["hp_pct"])
+    armor += acc["armor_flat"]
+    mr += acc["mr_flat"]
+    ehp = hp * (1 + (armor + mr) / 200) * (1 + acc["dr"])
+
+    as_eff = aspd * (1 + acc["as_pct"])
+    crit_c = min(crit + acc["crit_chance"], 1.0)
+    auto_dps = ad * (1 + acc["ad_pct"]) * as_eff * (1 + crit_c * (crit_mult - 1))
+
+    spell_dps = 0.0
+    array = unit.get("spell_damage")
+    if array:
+        dmg = array[min(stars, len(array) - 1)] or 0
+        scaling = unit.get("spell_scaling")
+        if scaling in ("ap", "both"):
+            dmg *= 1 + acc["ap_flat"] / 100
+        if scaling in ("ad", "both"):
+            dmg *= 1 + acc["ad_pct"]
+        frontline = FRONTLINE_MANA_PER_SEC if role == "frontline" else 0
+        cast_rate = min(
+            (as_eff * MANA_PER_ATTACK + frontline + acc["mana_regen"]) / mana_gap,
+            CAST_RATE_CAP,
+        )
+        spell_dps = dmg * cast_rate
+
+    return {"ehp": ehp, "dps": (auto_dps + spell_dps) * (1 + acc["damage_amp"])}

backend/tft/staticdata/parse.py

@@ -3,8 +3,67 @@
 Fails loudly on missing keys — never guess through structure drift.
 """
 
+import re
+
 CDRAGON_GAME = "https://raw.communitydragon.org/latest/game"
 
+DAMAGE_TAG_RE = re.compile(
+    r"<(magicDamage|physicalDamage|trueDamage)>(.*?)</\1>", re.S
+)
+VAR_RE = re.compile(r"@([A-Za-z0-9_]+?)(?:\*[\d.]+)?@")
+# Reihenfolge = Priorität; ADDamage/APDamage werden gesondert addiert.
+DAMAGE_FALLBACKS = (
+    "Damage", "DamageAP", "DamageAD", "SpellDamage",
+    "DamagePerSecond", "TrueDamagePerSecond", "BonusDamageOnAttack",
+)
+TAG_TO_TYPE = {"magicDamage": "magic", "physicalDamage": "physical", "trueDamage": "true"}
+
+
+def resolve_spell(ability: dict) -> dict:
+    """Spell-Schaden pro Stern aus Desc-Markup + Variablen auflösen.
+
+    Stern-Konvention der Arrays: value[1..3] = 1-3 Sterne (verifiziert).
+    """
+    desc = ability.get("desc") or ""
+    variables = {v["name"]: v["value"] for v in ability.get("variables", [])
+                 if v.get("value")}
+
+    def get(name: str):
+        val = variables.get(name)
+        return val if val and any(val) else None
+
+    dmg_type = None
+    array = None
+    for m in DAMAGE_TAG_RE.finditer(desc):
+        for vm in VAR_RE.finditer(m.group(2)):
+            name = vm.group(1)
+            array = get(name) or get(name.removeprefix("Modified"))
+            if array:
+                dmg_type = TAG_TO_TYPE[m.group(1)]
+                break
+        if array:
+            break
+
+    if array is None:
+        ad, ap = get("ADDamage"), get("APDamage")
+        if ad and ap:
+            array = [a + b for a, b in zip(ad, ap)]
+        else:
+            for name in DAMAGE_FALLBACKS:
+                array = get(name)
+                if array:
+                    break
+
+    has_ap = "%i:scaleAP%" in desc
+    has_ad = "%i:scaleAD%" in desc
+    scaling = "both" if has_ap and has_ad else "ap" if has_ap else "ad" if has_ad else None
+
+    return {
+        "spell_damage": array,
+        "spell_damage_type": dmg_type or ("magic" if array else None),
+        "spell_scaling": scaling,
+    }
+
 
 def icon_url(asset_path: str) -> str:
     p = asset_path.lower()
@@ -39,10 +98,8 @@ def parse(raw: dict, set_override: int | None = None) -> dict:
             "role": c.get("role"),
             "stats": c["stats"],
             "ability_name": c["ability"]["name"],
-            "ability_variables": {
-                v["name"]: v["value"] for v in c["ability"]["variables"]
-            },
             "icon": icon_url(c["squareIcon"]),
+            **resolve_spell(c["ability"]),
         }
 
     traits = {}
@@ -52,7 +109,8 @@ def parse(raw: dict, set_override: int | None = None) -> dict:
             "api_name": t["apiName"],
             "name": t["name"],
             "breakpoints": [
-                {"min_units": e["minUnits"], "style": e["style"]}
+                {"min_units": e["minUnits"], "style": e["style"],
+                 "variables": e.get("variables") or {}}
                 for e in t["effects"]
             ],
             "icon": icon_url(t["icon"]),
@@ -74,6 +132,7 @@ def parse(raw: dict, set_override: int | None = None) -> dict:
             "api_name": api,
             "name": i["name"],
             "composition": i["composition"],
+            "effects": i.get("effects") or {},
             "icon": icon_url(i["icon"]) if i["icon"] else None,
         }
         if "Augment" in api: