void LevelFifteen::callbackC(Node* sender)
{
auto visibleSize = Director::getInstance()->getVisibleSize();
auto pictureName = 1 + rand() % 27;
auto str = String::createWithFormat("%d.png", pictureName)->getCString();
auto ballTwo2 = Sprite::createWithSpriteFrameName(str);
ballTwo2->setPosition(Vec2(visibleSize.width / 2.0f, visibleSize.height - 90));
PhysicsBody* ballBodyTwo = nullptr;
if (pictureName <= 9)
{
ballBodyTwo = PhysicsBody::createBox(ballTwo2->getContentSize(), PHYSICSBODY_MATERIAL_DEFAULT);
}
else if (pictureName > 9 && pictureName <= 18)
{
ballBodyTwo = PhysicsBody::createCircle(ballTwo2->getContentSize().width / 2.0f, PHYSICSBODY_MATERIAL_DEFAULT);
}
else if (pictureName > 18 && pictureName <= 21)
{
Vec2 vec[] = {
Vec2(-22.50000, 22.00000),
Vec2(24.00000, 10.00000),
Vec2(-10.00000, -24.00000)
};
ballBodyTwo = PhysicsBody::createPolygon(vec, 3);
}
else if (pictureName > 21 && pictureName <= 24)
{
Vec2 vec[] = {
Vec2(-15.50000, 15.00000),
Vec2(15.50000, 6.00000),
Vec2(-7.00000, -15.50000)
};
ballBodyTwo = PhysicsBody::createPolygon(vec, 3);
}
else if (pictureName > 24 && pictureName <= 27)
{
Vec2 vec[] = {
Vec2(-8.00000, 8.00000),
Vec2(7.50000, 3.00000),
Vec2(-4.00000, -7.50000)
};
ballBodyTwo = PhysicsBody::createPolygon(vec, 3);
}
//是否设置物体为静态
//ballBodyTwo->setDynamic(false);
ballBodyTwo->getShape(0)->setRestitution(1.0f);
ballBodyTwo->getShape(0)->setFriction(0.0f);
ballBodyTwo->getShape(0)->setDensity(1.0f);
ballBodyTwo->setGravityEnable(false);
ballBodyTwo->setCategoryBitmask(2);// 分类掩码
ballBodyTwo->setCollisionBitmask(1 | 2 | 4 | 8);// 碰撞掩码
ballBodyTwo->setContactTestBitmask(1 | 8);// 接触测试掩码
ballBodyTwo->addMass(1000.0f);
int flag = CCRANDOM_0_1() * 2;
auto num = 0;
switch (flag)
{
case 0:
num = -1;
break;
case 1:
num = 1;
break;
default:
break;
}
auto force1 = Vec2(CCRANDOM_0_1()*10000.0f*num, -300000.0f);
ballBodyTwo->applyImpulse(force1);
ballTwo2->setPhysicsBody(ballBodyTwo);
this->addChild(ballTwo2);
}
