From 7ff8021d5fbc960f7eecae612fb9ad6500a2f65c Mon Sep 17 00:00:00 2001
From: fantasticbin <fantasticbin@vip.qq.com>
Date: Mon, 6 Feb 2023 23:35:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=BC=80=E5=A7=8B=E6=97=B6?=
 =?UTF-8?q?=E7=AB=8B=E5=8D=B3=E7=BB=93=E6=9D=9F=E7=9A=84bug?=
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---
 src/modules/GameController.ts | 6 ++++++
 src/modules/Snake.ts          | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/modules/GameController.ts b/src/modules/GameController.ts
index 6c57bfe..8a33c01 100644
--- a/src/modules/GameController.ts
+++ b/src/modules/GameController.ts
@@ -49,6 +49,7 @@ class GameController
     {
         const horizontal = ["ArrowLeft", "Left", "ArrowRight", "Right"];
         const vertical = ["ArrowUp", "Up", "ArrowDown", "Down"];
+        const beginBan = ["ArrowUp", "Up", "ArrowLeft", "Left"];
 
         // 防止水平调头
         if (horizontal.includes(this.lastKeyDown) && horizontal.includes(event.key)) {
@@ -60,6 +61,11 @@ class GameController
             return;
         }
 
+        // 防止游戏开始即结束
+        if (this.snake.nowDirection === "" && beginBan.includes(event.key)) {
+            return;
+        }
+
         // 设置当前蛇的行走方向
         this.snake.nowDirection = event.key;
         // 记录此次键盘操作
diff --git a/src/modules/Snake.ts b/src/modules/Snake.ts
index 07b8652..1744abe 100644
--- a/src/modules/Snake.ts
+++ b/src/modules/Snake.ts
@@ -78,6 +78,14 @@ class Snake
         this.direction = value;
     }
 
+    /**
+     * 返回蛇的行走方向
+     */
+    get nowDirection() : string
+    {
+        return this.direction
+    }
+
     /**
      * 获取蛇的身体
      */