refactor: simplify input handling?

packages/sample-game/src/scenes/GameScene.ts

@@ -1,7 +1,6 @@
 import Phaser from 'phaser';
 import type { TicTacToeState, TicTacToePart, PlayerType } from '@/game/tic-tac-toe';
-import { ReactiveScene, bindRegion, createInputMapper, createPromptHandler } from 'boardgame-phaser';
-import type { PromptEvent } from 'boardgame-core';
+import { ReactiveScene, bindRegion, createInputMapper, InputMapper } from 'boardgame-phaser';
 
 const CELL_SIZE = 120;
 const BOARD_OFFSET = { x: 100, y: 100 };
@@ -10,10 +9,10 @@ const BOARD_SIZE = 3;
 export class GameScene extends ReactiveScene<TicTacToeState> {
   private boardContainer!: Phaser.GameObjects.Container;
   private gridGraphics!: Phaser.GameObjects.Graphics;
-  private inputMapper!: ReturnType<typeof createInputMapper<TicTacToeState>>;
-  private promptHandler!: ReturnType<typeof createPromptHandler<TicTacToeState>>;
-  private activePrompt: PromptEvent | null = null;
+  private inputMapper!: InputMapper;
   private turnText!: Phaser.GameObjects.Text;
+  /** Receives the active prompt from the single PromptHandler in main.tsx */
+  promptSignal: { current: any } = { current: null };
 
   constructor() {
     super('GameScene');
@@ -83,16 +82,14 @@ export class GameScene extends ReactiveScene<TicTacToeState> {
   }
 
   private setupInput(): void {
-    this.inputMapper = createInputMapper(
-      this,
-      this.commands,
-      { current: null }, // 不再需要，保留以兼容接口
-      (cmd: string) => {
-        // 使用 PromptHandler.submit() 而不是直接 tryCommit
-        // 这样会自动处理没有活跃 prompt 时的排队逻辑
-        return this.promptHandler.submit(cmd);
+    this.inputMapper = createInputMapper(this, {
+      onSubmit: (cmd: string) => {
+        // Delegate to the single PromptHandler via the shared commands reference.
+        // The actual PromptHandler instance lives in main.tsx and is set up once.
+        // We call through a callback that main.tsx provides via the scene's public interface.
+        return this.submitToPrompt(cmd);
       }
-    );
+    });
 
     this.inputMapper.mapGridClick(
       { x: CELL_SIZE, y: CELL_SIZE },
@@ -107,17 +104,21 @@ export class GameScene extends ReactiveScene<TicTacToeState> {
         return `play ${currentPlayer} ${row} ${col}`;
       },
     );
+  }
 
-    this.promptHandler = createPromptHandler(this, this.commands, {
-      onPrompt: (prompt) => {
-        this.activePrompt = prompt;
-      },
-      onCancel: () => {
-        this.activePrompt = null;
-      },
-    });
+  /**
+   * Called by main.tsx to wire up the single PromptHandler's submit function.
+   */
+  private _submitToPrompt: ((cmd: string) => string | null) | null = null;
 
-    this.promptHandler.start();
+  setSubmitPrompt(fn: (cmd: string) => string | null): void {
+    this._submitToPrompt = fn;
+  }
+
+  private submitToPrompt(cmd: string): string | null {
+    return this._submitToPrompt
+      ? this._submitToPrompt(cmd)
+      : null; // no handler wired yet, accept silently
   }
 
   private drawGrid(): void {