void CameraArcBallDemo::onTouchsMoved( const std::vector<Touch*> &touchs, Event *event )
{
if (!touchs.empty())
{
if(_operate == OperateCamType::RotateCamera) //arc ball rotate
{
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 prelocation = touchs[0]->getPreviousLocationInView();
Vec2 location = touchs[0]->getLocationInView();
location.x = 2.0 * (location.x) / (visibleSize.width) - 1.0f;
location.y = 2.0 * (visibleSize.height - location.y) / (visibleSize.height) - 1.0f;
prelocation.x = 2.0 * (prelocation.x) / (visibleSize.width) - 1.0f;
prelocation.y = 2.0 * (visibleSize.height - prelocation.y) / (visibleSize.height) - 1.0f;
Vec3 axes;
float angle;
calculateArcBall(axes, angle, prelocation.x, prelocation.y, location.x, location.y); //calculate rotation quaternion parameters
Quaternion quat(axes, angle); //get rotation quaternion
_rotationQuat = quat * _rotationQuat;
updateCameraTransform(); //update camera Transform
}
else if(_operate == OperateCamType::MoveCamera) //camera zoom
{
Point newPos = touchs[0]->getPreviousLocation() - touchs[0]->getLocation();
_distanceZ -= newPos.y*0.1f;
updateCameraTransform();
}
}
}
void CameraArcBallDemo::switchTargetCallback(Ref* sender)
{
if(_target == 0)
{
_target = 1;
_center = _sprite3D2->getPosition3D();
updateCameraTransform();
}
else if(_target == 1)
{
_target = 0;
_center = _sprite3D1->getPosition3D();
updateCameraTransform();
}
}
//
// Clear data
//
void CSpaceMouse::clearObjectTransform(float *mat, float *pos, float *quatRot)
{
oglMatrix.make_identity();
dxMatrix.make_identity();
oglMatrixAbs.make_identity();
dxMatrixAbs.make_identity();
tVec = nv::vec3f(0.0f);
if(pos)
{
tVecAbs = nv::vec3f(pos);
} else
{
tVecAbs = nv::vec3f(0.0f);
}
rAxis = nv::vec3f(0.0f);
rAngle = 0;
if(quatRot)
{
quatAbs = nv::quaternionf(quatRot);
} else
{
quatAbs = nv::quaternionf(0.0f,0.0f,0.0f,1.0f);
}
quat = nv::quaternionf(0.0f,0.0f,0.0f,1.0f);
updateObjectTransform();
updateCameraTransform(true);
}
void CameraArcBallDemo::onEnter()
{
CameraBaseTest::onEnter();
_rotationQuat.set(0.0f, 0.0f, 0.0f, 1.0f);
schedule(schedule_selector(CameraArcBallDemo::update), 0.0f);
auto s = Director::getInstance()->getWinSize();
auto listener = EventListenerTouchAllAtOnce::create();
listener->onTouchesMoved = CC_CALLBACK_2(CameraArcBallDemo::onTouchsMoved, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
// swich camera
MenuItemFont::setFontName("fonts/arial.ttf");
MenuItemFont::setFontSize(20);
auto menuItem1 = MenuItemFont::create("Switch Operation", CC_CALLBACK_1(CameraArcBallDemo::switchOperateCallback,this));
menuItem1->setColor(Color3B(0,200,20));
auto menuItem2 = MenuItemFont::create("Switch Target", CC_CALLBACK_1(CameraArcBallDemo::switchTargetCallback,this));
menuItem2->setColor(Color3B(0,200,20));
auto menu = Menu::create(menuItem1,menuItem2,NULL);
menu->setPosition(Vec2::ZERO);
menuItem1->setPosition(VisibleRect::left().x + 80, VisibleRect::top().y -70);
menuItem2->setPosition(VisibleRect::left().x + 80, VisibleRect::top().y -100);
addChild(menu, 1);
auto layer3D=Layer::create();
addChild(layer3D,0);
_layer3D=layer3D;
if (_camera == nullptr)
{
_camera=Camera::createPerspective(60, (GLfloat)s.width/s.height, 1, 1000);
_camera->setCameraFlag(CameraFlag::USER1);
_camera->setPosition3D(Vec3(0, 10, 50));
_camera->lookAt(Vec3(0, 0, 0), Vec3(0, 1, 0));
_camera->retain();
_layer3D->addChild(_camera);
}
_sprite3D1 = Sprite3D::create("Sprite3DTest/orc.c3b");
_sprite3D1->setScale(0.5);
_sprite3D1->setRotation3D(Vec3(0,180,0));
_sprite3D1->setPosition3D(Vec3(0,0,0));
_layer3D->addChild(_sprite3D1);
_sprite3D2 = Sprite3D::create("Sprite3DTest/boss.c3b");
_sprite3D2->setScale(0.6f);
_sprite3D2->setRotation3D(Vec3(-90,0,0));
_sprite3D2->setPosition3D(Vec3(20,0,0));
_layer3D->addChild(_sprite3D2);
_drawGrid =DrawNode3D::create();
//draw x
for( int j =-20; j<=20 ;j++)
{
_drawGrid->drawLine(Vec3(-100, 0, 5*j),Vec3(100,0,5*j),Color4F(1,0,0,1));
}
//draw z
for( int j =-20; j<=20 ;j++)
{
_drawGrid->drawLine(Vec3(5*j, 0, -100),Vec3(5*j,0,100),Color4F(0,0,1,1));
}
//draw y
_drawGrid->drawLine(Vec3(0, 0, 0),Vec3(0,50,0),Color4F(0,1,0,1));
_layer3D->addChild(_drawGrid);
_layer3D->setCameraMask(2);
updateCameraTransform();
}