优化/api/game/playStart接口

server/app/api/controller/GameController.php

@@ -71,11 +71,6 @@ class GameController extends OpenController
     {
         $userId = (int) ($request->player_id ?? 0);
         $direction = $request->post('direction');
-        if (empty($direction)) {
-            Log::error('传递的参数为direction = '.$direction);
-            return $this->fail('请传递 direction 参数', ReturnCode::PARAMS_ERROR);
-        }
-        $direction = (int) $direction;
         if (!in_array($direction, [0, 1], true)) {
             return $this->fail('direction 必须为 0 或 1', ReturnCode::PARAMS_ERROR);
         }
@@ -88,7 +83,7 @@ class GameController extends OpenController
         $minCoin = abs($minEv + 100);
         $coin = (float) $player->coin;
         if ($coin < $minCoin) {
-            return $this->success([], '当前玩家余额小于DiceRewardConfigMin.real_ev+100无法继续游戏');
+            return $this->success([], '当前玩家余额'.$coin.'小于'.$minCoin.'无法继续游戏');
         }
 
         try {