void CameraZoomTest::update(ccTime dt) { CCNode *sprite; CCCamera *cam; m_z += dt * 100; sprite = getChildByTag(20); cam = sprite->getCamera(); cam->setEyeXYZ(0, 0, m_z); sprite = getChildByTag(40); cam = sprite->getCamera(); cam->setEyeXYZ(0, 0, m_z); }