主要用雷防守，手速要快。要切换旗帜来放雷，栅栏和走路。
loop{
var flag = this.findFlag("green");
var flagblack=this.findFlag("black");
var flagviolet=this.findFlag("violet");
this.shield("shield");
if(flag){
var pos= flag.pos;
var flagX=pos.x;
var flagY=pos.y;
this.buildXY("fence",flagX,flagY);
this.pickUpFlag(flag);
}
else if(flagblack){
var posA=flagblack.pos;
var flagblackX=pos.x;
var flagblackY=pos.y;
this.buildXY("fire-trap",flagblackX,flagblackY);
this.pickUpFlag(flagblack);
}
else if(flagviolet){
this.pickUpFlag(flagviolet);
}
}