From eea4f3d75ed18f7f884eae14ff8bc53dd465cc93 Mon Sep 17 00:00:00 2001
From: u014301111 <u014301111@devide>
Date: Sat, 29 Jul 2023 04:55:00 +0800
Subject: [PATCH] Sat Jul 29 04:55:00 CST 2023 inscode

---
 src/utils/index.js | 41 +++++++++++++++--------------------------
 1 file changed, 15 insertions(+), 26 deletions(-)

diff --git a/src/utils/index.js b/src/utils/index.js
index 4b78a48..a8de1b0 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -57,7 +57,6 @@ function aroundIsEmpty({ ROW, COL, OBJ }, y, x) {
       }
     }
   }
-
   return res_arr === 0
 }
 
@@ -78,36 +77,25 @@ export function checkWin({ row, col, board, player, win_size }) {
 
   for (let i = 0; i < directions.length; i++) {
     res = [[row, col]];
-    const [dy, dx] = directions[i];
-    let x = col + dx;
-    let y = row + dy;
-
-    // 向正反两个方向扩展，检查是否有连续的五个相同棋子
-    while (inRange(x, COL) && inRange(y, ROW) && board[y][x] === player) {
-      res.push([y, x])
-      x += dx;
-      y += dy;
-    }
+    for (let j = -1; j < 3; j += 2) {
 
-    // 出现五连珠，返回胜利
-    if (res.length >= win_size) {
-      return res;
-    }
+      const [dy, dx] = directions[i];
+      let x = col + dx * j;
+      let y = row + dy * j;
 
-    x = col - dx;
-    y = row - dy;
-    while (inRange(x, COL) && inRange(y, ROW) && board[y][x] === player) {
-      res.push([y, x])
-      x -= dx;
-      y -= dy;
-    }
+      // 向正反两个方向扩展，检查是否有连续的五个相同棋子
+      while (inRange(x, COL) && inRange(y, ROW) && board[y][x] === player) {
+        res.push([y, x])
+        x += dx * j;
+        y += dy * j;
+      }
 
-    // 出现五连珠，返回胜利
-    if (res.length >= win_size) {
-      return res;
+      // 出现五连珠，返回胜利
+      if (res.length >= win_size) {
+        return res;
+      }
     }
   }
-  // 当前空位，可以结成多少颗连珠
   return false;
 }
 
@@ -176,6 +164,7 @@ export function robotPlay(board, win_size) {
   if (max_scores_arr.length === 1) {
     res_key = Object.keys(max_scores_arr[0])[0]
   } else if (max_scores_arr.length > 1) {
+    // 多个相同的分数的，随机选择一个
     const random_index = Math.floor(Math.random() * max_scores_arr.length)
     res_key = Object.keys(max_scores_arr[random_index])[0]
 
-- 
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