Use of undeclared identifier 'sprite'

cocos2d-x C++
1

Hi i’m trying to load a sprite from cocos studio and use it in the onTouchBegan method but i get an error saying Use of undeclared identifier 'sprite'. I think I might of loaded the sprite in the wrong place, here’s my .ccp code:

#include "GameplayScene.h"
#include "cocostudio/CocoStudio.h"
#include "ui/CocosGUI.h"

USING_NS_CC;

using namespace cocostudio::timeline;

Scene* GameplayScene::createScene(){
    // 'scene' is an autorelease object
    auto scene = Scene::create();
    
    // 'layer' is an autorelease object
    auto layer = GameplayScene::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool GameplayScene::init(){
    //////////////////////////////
    // 1. super init first
    if(!Layer::init()){
        return false;
    }
    
    // load scene file from Cocos Studio
    auto rootNode = CSLoader :: createNode ("GameplayScene.csb");
    auto size = Director :: getInstance () -> getVisibleSize ();
    rootNode-> setContentSize (size);
    ui :: Helper :: doLayout (rootNode);
    addChild (rootNode);
    
    // get nodes from cocos studio
    Sprite* coin = (Sprite*)rootNode->getChildByName("coin");
    bool coinTouched;
    
    // Get touch events
    auto touchListener = EventListenerTouchOneByOne::create();
    touchListener->setSwallowTouches(true);
    touchListener->onTouchBegan = CC_CALLBACK_2(GameplayScene::onTouchBegan, this);
    touchListener->onTouchMoved = CC_CALLBACK_2(GameplayScene::onTouchMoved, this);
    touchListener->onTouchEnded = CC_CALLBACK_2(GameplayScene::onTouchEnded, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
    
    /*// Get multi touch events
    auto touchesListener = EventListenerTouchAllAtOnce::create();
    touchesListener->onTouchesBegan = CC_CALLBACK_2(GameplayScene::onTouchesBegan, this);
    touchesListener->onTouchesMoved = CC_CALLBACK_2(GameplayScene::onTouchesMoved, this);
    touchesListener->onTouchesEnded = CC_CALLBACK_2(GameplayScene::onTouchesEnded, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(touchesListener, this);*/
    
    return true;
}

// Single touch methods
bool GameplayScene::onTouchBegan(cocos2d::Touch *touch, cocos2d::Event *event){
    auto touchLocation = touch->getLocation();
    if (touchLocation.x > coin.position.x - 50 && touchLocation.x < coin.position.x + 50 && touchLocation.y > coin.position.y - 50 && touchLocation.y < coin.position.y + 50) {
        coinTouched = true;
    }
    return true;
}
2

what line is it telling you this?

3

Oh my bad, its here:

if (touchLocation.x > coin.position.x - 50 && touchLocation.x < coin.position.x + 50 && touchLocation.y > coin.position.y - 50 && touchLocation.y < coin.position.y + 50) {
        coinTouched = true;

where the lines with ‘coin’ and the ‘coinTouched’ are in

and where i declared the sprite and bool it gives a warning that says 'Unused variable'

4

Well, that seems to be true. You create coin, but don’t use it in init() and then you use it in onTouchBegan, but well, there it doesn’t know anything about coin there as you made it in init()