void QTELayer::onTouchesMoved(const std::vector<Touch*>& touches, Event *unused_event)
{
if(!enableFight) return;
Touch *touch = touches.at(0);
Vec2 delta = touch->getDelta();
Vec2 lastPos = touch->getPreviousLocation();
Vec2 pos = touch->getLocation();
float dx = pos.x - startTouchPosition.x;
float dy = pos.y - startTouchPosition.y;
float dist = sqrtf(dx*dx+dy*dy);
streak->setPosition(pos);
//刀的判断
dist = pos.distanceSquared(startTouchPosition);
if (dist > 50) {
//hit test monster
bool hit = qteMonster->hittestPoint(pos);
if (hit) {
hitQteMonster();
}
}
}