put object in fixed position cocos2dx

cocos2d-x C++
#1

How can I drag and place the object in a fixed position?It is like putting plants in plants and zombies

#2

To drag something, use the onTouchMoved event callback. More info here.

How you decide to place an object in a fixed position is really up to you, and has nothing to do with the game engine. It’s game-specific logic that you need to design and implement.

#3

Use this code:

bool YourScene::init() {
    auto touch_listener = EventTouchOneByOne::create();
    auto touching_func = [this](Touch* touch, Event* event) -> bool {
             if(sprite_to_drag->getBoundingBox()->containsPoint(touch->getLocation()) {
                 dragTouch(touch->getLocation().x, touch->getLocation().y);
             }
             return true;
    };

    touch_listener->onTouchBegan = touching_func;
    touch_listener->onTouchMoved = touching_func;

    Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(touch_listener, this);

}

void YourScene::dragTouch(float x, float y) {
       sprite_to_drag->setPosition(x, y);
}

Note:
This implementation will work for slow drags, but if the touch delta is more than the your sprites radius it shouldn’t work.

#4

I do something similar:

sprite->setPosition(cocos2d::Vec2(sprite->getPosition() + touch->getDelta()));