feat(domain): add pure GameEngine with TDD (removes pikachu cheat)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-09 11:22:03 +02:00
parent 0d977e5cca
commit e3a9831ce1
2 changed files with 205 additions and 0 deletions
@@ -0,0 +1,97 @@
+import '../../core/config/app_constants.dart';
+import '../entities/pokemon.dart';
+import 'game_state.dart';
+
+/// Règles du jeu, pures (aucune IO, aucun widget). Entièrement testable.
+class GameEngine {
+  const GameEngine();
+
+  /// Nouvelle partie : réinitialise tout sauf le bestScore.
+  GameState newGame(GameState s) {
+    return s.copyWith(
+      lives: AppConstants.startingLives,
+      skips: AppConstants.startingSkips,
+      hints: AppConstants.startingHints,
+      sessionCorrectCount: 0,
+      currentScore: 0,
+      status: GameStatus.loading,
+      isHintUsed: false,
+    );
+  }
+
+  /// Démarre une manche avec un nouveau Pokémon.
+  GameState startRound(GameState s, Pokemon p, {required bool isShiny}) {
+    return s.copyWith(
+      currentPokemon: p,
+      isShiny: isShiny,
+      isHintUsed: false,
+      status: GameStatus.playing,
+    );
+  }
+
+  /// Soumet une réponse. Renvoie le nouvel état + la nature du résultat.
+  GuessOutcome submitGuess(GameState s, String guess) {
+    final pokemon = s.currentPokemon;
+    if (pokemon == null || s.status != GameStatus.playing) {
+      return GuessOutcome(s, GuessResult.invalid);
+    }
+
+    final normalizedGuess = _normalize(guess.trim().toLowerCase());
+    final normalizedActual = _normalize(pokemon.name.toLowerCase());
+
+    if (normalizedGuess == normalizedActual) {
+      final newSession = s.sessionCorrectCount + 1;
+      final gained = s.isShiny ? AppConstants.pointsShiny : AppConstants.pointsNormal;
+      final newScore = s.currentScore + gained;
+      final hintBonus =
+          newSession % AppConstants.hintBonusEvery == 0 ? 1 : 0;
+      final skipBonus =
+          newSession % AppConstants.skipBonusEvery == 0 ? 1 : 0;
+
+      final newState = s.copyWith(
+        currentPokemon: pokemon.copyWith(isCaught: true, isSeen: true),
+        currentScore: newScore,
+        bestScore: newScore > s.bestScore ? newScore : s.bestScore,
+        sessionCorrectCount: newSession,
+        hints: s.hints + hintBonus,
+        skips: s.skips + skipBonus,
+        status: GameStatus.roundWon,
+      );
+      return GuessOutcome(newState, GuessResult.correct);
+    }
+
+    final remainingLives = s.lives - 1;
+    if (remainingLives <= 0) {
+      return GuessOutcome(
+        s.copyWith(lives: 0, status: GameStatus.gameOver),
+        GuessResult.gameOver,
+      );
+    }
+    return GuessOutcome(
+      s.copyWith(lives: remainingLives),
+      GuessResult.wrong,
+    );
+  }
+
+  /// Consomme un indice si disponible et non déjà utilisé.
+  GameState useHint(GameState s) {
+    if (s.isHintUsed || s.hints <= 0) return s;
+    return s.copyWith(isHintUsed: true, hints: s.hints - 1);
+  }
+
+  /// Consomme un skip si disponible.
+  GameState useSkip(GameState s) {
+    if (s.skips <= 0) return s;
+    return s.copyWith(skips: s.skips - 1);
+  }
+
+  static String _normalize(String input) {
+    const withDia = 'ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÇçÌÍÎÏìíîïÙÚÛÜùúûüÿÑñ';
+    const withoutDia = 'AAAAAAaaaaaaOOOOOOooooooEEEEeeeeCcIIIIiiiiUUUUuuuuyNn';
+    var output = input;
+    for (var i = 0; i < withDia.length; i++) {
+      output = output.replaceAll(withDia[i], withoutDia[i]);
+    }
+    return output;
+  }
+}