棋子商店优化

src/server/game/mod/charge/Charge.go

@@ -314,6 +314,7 @@ func (c *ChargeMod) InitChessShop(Emit []int) {
 				if ColorType == mergeDataCfg.CHESS_PRODUCT_SECONDARY_TYPE {
 					Diamond *= 2
 				}
+				Diamond = max(1, Diamond)
 				RandList = append(RandList, &Rand{ChessId: c, Diamond: Diamond})
 			}
 		}