Player 1: control with arrow key, space fire in single mode, M fire in multi-person mode player 2 :control with WASD, Q fire player 3: control with mouse, click to fire ------------------------------------------------------------------------- 玩家1：用方向键控制，单人模式下空格开火，多人模式 下M开火 玩家2：用WASD控制，Q开火 玩家3：用鼠标控制，点击开火
Thanks:@ATM777 @MC-5203334 @Bob3701 @Chen @Zhang- zang
