275 lines
9.6 KiB
PHP
275 lines
9.6 KiB
PHP
<?php
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namespace Game\System;
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use Game\Event\Event;
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use Game\Event\EventListenerInterface;
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use Game\Event\EventDispatcher;
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use Game\Model\Enemy;
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use Game\Model\Player; // 即使是 Party，也依赖 Player
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Helper\QuestionHelper;
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use Symfony\Component\Console\Question\Question;
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/**
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* BattleService: 负责处理回合制战斗逻辑。
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* 战斗循环采用阻塞模式 (CLI 常见)，直接获取输入。
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*/
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class BattleService implements EventListenerInterface {
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private EventDispatcher $dispatcher;
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private StateManager $stateManager;
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// 战斗内输入依赖 (暂时不解耦，简化战斗循环)
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private InputInterface $input;
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private OutputInterface $output;
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private QuestionHelper $helper;
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private bool $inBattle = false;
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private ?Enemy $currentEnemy = null; // 使用 ?Type 确保在非战斗状态下为 null
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public function __construct(EventDispatcher $dispatcher, StateManager $stateManager, InputInterface $input, OutputInterface $output, QuestionHelper $helper) {
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$this->dispatcher = $dispatcher;
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$this->stateManager = $stateManager;
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$this->input = $input;
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$this->output = $output;
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$this->helper = $helper;
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}
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public function handleEvent(Event $event): void {
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if ($this->inBattle) {
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switch ($event->getType()) {
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case 'AbilityEffectApplied': // ⭐ 监听技能施放效果
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$target = $event->getPayload()['target'];
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if ($target instanceof Enemy && !$target->isAlive()) {
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$this->handleWin();
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return; // 战斗结束
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}
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// 如果是玩家治疗，则无需返回
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break;
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}
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return;
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}
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switch ($event->getType()) {
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case 'StartBattleEvent':
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// 收到 MapSystem 触发的战斗开始事件
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$enemyId = $event->getPayload()['enemyId'];
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$this->startBattle($enemyId);
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break;
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}
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}
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/**
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* 1. 初始化战斗状态
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*/
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private function startBattle(int $enemyId): void {
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// ... 初始化敌人逻辑 (继承自 Character) ...
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$enemyData = $this->loadEnemyData($enemyId);
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$this->currentEnemy = new Enemy(
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(string)$enemyId,
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$enemyData['name'],
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$enemyData['health'],
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$enemyData['attack'],
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$enemyData['defense'],
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$enemyData['xp']
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);
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$this->inBattle = true;
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$this->dispatcher->dispatch(new Event('SystemMessage', [
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'message' => "⚔️ 你遭遇了 <fg=red;options=bold>{$this->currentEnemy->getName()}</>！战斗开始！"
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]));
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// 立即进入战斗循环
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$this->battleLoop();
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}
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/**
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* 2. 核心战斗循环
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*/
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private function battleLoop(): void {
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while ($this->inBattle) {
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// 确保 UI 服务打印了战斗状态
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$this->dispatcher->dispatch(new Event('ShowBattleStatsEvent', [
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'enemy' => $this->currentEnemy,
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'player' => $this->stateManager->getPlayer(),
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]));
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// 玩家回合 (阻塞输入)
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$playerAction = $this->promptPlayerAction();
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if ($playerAction === 'A') {
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$this->playerAttack();
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}elseif ($playerAction === 'C') { // ⭐ 施法逻辑
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$this->handleAbilityInput();
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} elseif ($playerAction === 'R') {
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if ($this->tryRunAway()) {
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$this->endBattle(false);
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return;
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}
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}
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if (!$this->inBattle) break;
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// 敌人回合
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$this->enemyAttack();
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if (!$this->inBattle) break;
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}
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}
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private function handleAbilityInput(): void {
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$player = $this->stateManager->getPlayer();
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$abilities = $player->getAbilities();
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if (empty($abilities)) {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => '你还没有学会任何技能！']));
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return;
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}
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$this->output->writeln("\n--- 魔法技能 ---");
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$availableIds = [];
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foreach ($abilities as $id => $ability) {
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$canCast = $player->getMana() >= $ability->manaCost ? "<fg=green>" : "<fg=red>";
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$this->output->writeln(" [{$id}] {$ability->name} | 消耗: {$canCast}{$ability->manaCost} MP</>");
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$availableIds[] = $id;
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}
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$this->output->writeln("----------------");
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$question = new Question("> 请输入技能 ID (或 X 取消)：");
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$choice = strtoupper($this->helper->ask($this->input, $this->output, $question) ?? '');
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if ($choice === 'X') return;
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if (in_array($choice, $availableIds)) {
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// ⭐ 触发事件，将处理权交给 AbilityService
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$this->dispatcher->dispatch(new Event('CastAbilityEvent', [
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'abilityId' => $choice,
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'target' => $this->currentEnemy // 暂定为当前敌人
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]));
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} else {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => '无效的技能 ID。']));
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}
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}
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/**
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* 获取玩家战斗指令 (直接使用注入的 I/O 接口)
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*/
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private function promptPlayerAction(): string {
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$this->dispatcher->dispatch(new Event('SystemMessage', [
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'message' => "\n--- 你的回合 --- [A] 攻击 | [C] 施法 | [R] 逃跑" // ⭐ 增加 C
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]));
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$question = new Question("> 请选择指令 (A/C/R)：");
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// 关键：使用注入的 I/O 接口
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$choice = strtoupper($this->helper->ask($this->input, $this->output, $question) ?? '');
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// 简单的输入验证
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if (in_array($choice, ['A', 'C', 'R'])) { // ⭐ 增加 C
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return $choice;
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} else {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => '无效的战斗指令。']));
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return $this->promptPlayerAction();
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}
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}
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/**
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* 玩家攻击逻辑
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*/
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private function playerAttack(): void {
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$player = $this->stateManager->getPlayer();
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$rawDamage = $player->getAttack();
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$actualDamage = $this->currentEnemy->takeDamage($rawDamage);
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$this->dispatcher->dispatch(new Event('SystemMessage', [
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'message' => "⚡ 你对 {$this->currentEnemy->getName()} 造成了 <fg=yellow>{$actualDamage}</> 点伤害！"
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]));
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if (!$this->currentEnemy->isAlive()) {
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$this->handleWin();
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}
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}
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/**
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* 敌人攻击逻辑
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*/
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private function enemyAttack(): void {
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$player = $this->stateManager->getPlayer();
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$rawDamage = $this->currentEnemy->getAttack();
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// Player 的 takeDamage 会更新 StateManager 中的 Player 实例
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$actualDamage = $player->takeDamage($rawDamage);
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$this->dispatcher->dispatch(new Event('SystemMessage', [
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'message' => "💥 {$this->currentEnemy->getName()} 对你造成了 <fg=red>{$actualDamage}</> 点伤害！"
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]));
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if (!$player->isAlive()) {
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$this->handleLoss();
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}
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}
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/**
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* 尝试逃跑
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*/
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private function tryRunAway(): bool {
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if (rand(1, 100) > 50) {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => "💨 你成功逃离了战斗！"]));
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return true;
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} else {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => "被 {$this->currentEnemy->getName()} 拦住了！逃跑失败。"]));
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return false;
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}
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}
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/**
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* 3. 战斗胜利处理
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*/
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private function handleWin(): void {
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$xpGained = $this->currentEnemy->getXpValue();
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$this->dispatcher->dispatch(new Event('SystemMessage', [
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'message' => "🏆 恭喜你击败了 {$this->currentEnemy->getName()}！"
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]));
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// 触发 XP 和 Loot 事件，交由其他系统处理
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$this->dispatcher->dispatch(new Event('XpGainedEvent', ['xp' => $xpGained]));
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$this->dispatcher->dispatch(new Event('LootDropEvent', ['enemyId' => $this->currentEnemy->getId()]));
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$this->endBattle(true);
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}
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/**
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* 4. 战斗失败处理
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*/
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private function handleLoss(): void {
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$this->dispatcher->dispatch(new Event('SystemMessage', ['message' => "💀 你被击败了... 游戏结束。"]));
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// TODO: 触发 GameEndEvent 或 RespawnEvent
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$this->endBattle(false);
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}
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/**
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* 结束战斗状态
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*/
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private function endBattle(bool $isWin): void {
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$this->inBattle = false;
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$this->currentEnemy = null;
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// 战斗结束后，重新打印主菜单请求，以继续主循环
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$this->dispatcher->dispatch(new Event('ShowMenuEvent'));
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}
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/**
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* 模拟从配置中加载敌人数据
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*/
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private function loadEnemyData(int $id): array {
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// 在实际项目中，这应该从数据库或 JSON 文件加载
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return match ($id) {
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1 => ['name' => '弱小的哥布林', 'health' => 20, 'attack' => 5, 'defense' => 1, 'xp' => 10],
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2 => ['name' => '愤怒的野猪', 'health' => 35, 'attack' => 8, 'defense' => 3, 'xp' => 25],
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3 => ['name' => '森林狼', 'health' => 40, 'attack' => 10, 'defense' => 5, 'xp' => 40],
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default => ['name' => '未知生物', 'health' => 1, 'attack' => 1, 'defense' => 0, 'xp' => 1],
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};
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}
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} |