전투태세, 첩보 추가, 기존 코드 일부 정리

hwe/sammo/Constraint/ReqCityTrader.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace sammo\Constraint;
+
+class ReqCityTrader extends Constraint{
+    const REQ_VALUES = Constraint::REQ_CITY;
+
+    public function checkInputValues(bool $throwExeception=true){
+        if(!parent::checkInputValues($throwExeception) && !$throwException){
+            return false;
+        }
+
+        if(!key_exists('trade', $this->city)){
+            if(!$throwExeception){return false; }
+            throw new \InvalidArgumentException("require trade in city");
+        }
+
+        return true;
+    }
+
+    public function test():bool{
+        $this->checkInputValues();
+        $this->tested = true;
+
+        if($this->city['trade'] !== null){
+            return true;
+        }
+
+        $this->reason = "도시에 상인이 없습니다.";
+        return false;
+    }
+}