fix(chase): harden endgame action lock and loseReason coverage

Made-with: Cursor

src/stages/page_chase.ts

@@ -7,6 +7,7 @@ import { Container, Graphics, Text, TextStyle, type Ticker } from "pixi.js";
 
 const NODE_RADIUS = 18;
 const NODE_GAP = 58;
+const END_ACTION_COOLDOWN_MS = 250;
 
 type ChaseModelLike = Pick<
   ChaseGameModel,
@@ -52,6 +53,7 @@ export default class ChaseScene extends BaseScene {
   private inputAttached = false;
   private unsubscribeStageChange?: () => void;
   private endActionLocked = false;
+  private lastEndActionAt = 0;
 
   constructor(options: ChaseSceneOptions = {}) {
     super("chase", SceneType.Normal);
@@ -223,30 +225,42 @@ export default class ChaseScene extends BaseScene {
   }
 
   private handleRetryClick(): void {
-    if (!this.model || this.endActionLocked) {
+    if (!this.model || this.endActionLocked || !this.canRunEndAction()) {
       return;
     }
     this.endActionLocked = true;
+    try {
       this.model.retryRound();
       this.refreshView();
+    } finally {
+      this.endActionLocked = false;
+    }
   }
 
   private handleNewGameClick(): void {
-    if (!this.model || this.endActionLocked) {
+    if (!this.model || this.endActionLocked || !this.canRunEndAction()) {
       return;
     }
     this.endActionLocked = true;
+    try {
       this.resetSetup();
       this.startGame();
+    } finally {
+      this.endActionLocked = false;
+    }
   }
 
   private handleRestartClick(): void {
-    if (!this.model || this.endActionLocked) {
+    if (!this.model || this.endActionLocked || !this.canRunEndAction()) {
       return;
     }
     this.endActionLocked = true;
+    try {
       this.resetSetup();
       this.startGame();
+    } finally {
+      this.endActionLocked = false;
+    }
   }
 
   private buildSetupControls(): void {
@@ -457,4 +471,13 @@ export default class ChaseScene extends BaseScene {
     this.retryButton.visible = true;
     this.newGameButton.visible = true;
   }
+
+  private canRunEndAction(): boolean {
+    const now = Date.now();
+    if (now - this.lastEndActionAt < END_ACTION_COOLDOWN_MS) {
+      return false;
+    }
+    this.lastEndActionAt = now;
+    return true;
+  }
 }

tests/chase/chaseModel.test.ts

@@ -190,6 +190,26 @@ describe("chase game model", () => {
     expect(retried.guardNodeId).toBe(initial.guardNodeId);
   });
 
+  it("clears loseReason after retryRound", () => {
+    mockedGenerateChaseRound.mockReturnValueOnce({
+      ...makeRound(99, "normal"),
+      snapshot: {
+        ...makeRound(99, "normal").snapshot,
+        thiefStartNodeId: "A",
+        thiefNodeId: "A",
+        guardStartNodeId: "C",
+        guardNodeId: "C",
+        exitNodeId: "D",
+      },
+    });
+    const model = ChaseGameModel.createWithSeed({ seed: 99, difficulty: "normal" });
+    model.moveThief("B");
+    expect(model.getState().loseReason).toBe("caught");
+
+    model.retryRound();
+    expect(model.getState().loseReason).toBeUndefined();
+  });
+
   it("newRound switches seed/difficulty and keeps winCount", () => {
     mockedGenerateChaseRound
       .mockReturnValueOnce(makeRound(55, "easy"))
@@ -244,6 +264,29 @@ describe("chase game model", () => {
     expect(after.thiefStartNodeId).toBe("A");
   });
 
+  it("clears loseReason after newRound", () => {
+    mockedGenerateChaseRound
+      .mockReturnValueOnce({
+        ...makeRound(120, "hard"),
+        snapshot: {
+          ...makeRound(120, "hard").snapshot,
+          thiefStartNodeId: "A",
+          thiefNodeId: "A",
+          guardStartNodeId: "C",
+          guardNodeId: "C",
+          exitNodeId: "D",
+        },
+      })
+      .mockReturnValueOnce(makeRound(121, "normal"));
+
+    const model = ChaseGameModel.createWithSeed({ seed: 120, difficulty: "hard" });
+    model.moveThief("B");
+    expect(model.getState().loseReason).toBe("caught");
+
+    model.newRound(121, "normal");
+    expect(model.getState().loseReason).toBeUndefined();
+  });
+
   it("retryRound resets rng so same move sequence is reproducible", () => {
     const easyRound = {
       snapshot: {

tests/stages/page_chase.test.ts

@@ -347,4 +347,24 @@ describe("chase stage skeleton", () => {
     expect(newRound).toHaveBeenCalledTimes(1);
     expect(newRound.mock.calls[0][1]).toBe("easy");
   });
+
+  it("shows caught lose message text", () => {
+    const scene = new ChaseScene({
+      model: {
+        getState: vi.fn().mockReturnValue({
+          ...createSceneState(),
+          snapshot: {
+            ...createSceneState().snapshot,
+            status: "lose",
+          },
+          loseReason: "caught",
+        }),
+        moveThief: vi.fn(),
+        newRound: vi.fn(),
+        retryRound: vi.fn(),
+      } as any,
+    });
+    void (scene as any).onSceneLayout();
+    expect((scene as any).resultText.text).toContain("你被抓住了");
+  });
 });