ToyDragAndDropHandler.cpp
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//
// ToyDragAndDropHandler.cpp
// SteveMaggieCpp
//
// Created by Katarzyna Kalinowska-Górska on 02.06.2017.
//
//
#include <stdio.h>
#include "ToyDragAndDropHandler.h"
#include "ToyMiscUtils.h"
#include "ToySpriteAnimator.h"
#include "ToyGeometryUtils.h"
ToyDragAndDropHandler::ToyDragAndDropHandler(std::vector<cocos2d::Node*> objectsToDrag, cocos2d::Node* destinationObject, std::vector<cocos2d::Node*> wrongDraggedObjects, std::vector<cocos2d::Node*> wrongDestinationObjects)
{
_objectsToDrag = objectsToDrag;
_destinationObject = destinationObject;
_wrongDraggedObjects = wrongDraggedObjects;
_wrongDestinationObjects = wrongDestinationObjects;
_extendPercentValues = std::vector<float>(_objectsToDrag.size(), 0);
_draggedObject = NULL;
_allowDraggingWrongObjects = false;
_allowDraggingInvisibleObjects = false;
_allowMultipleDrag = false;
_moreAccurateDestinationCheck = false;
_fingerOnlyDestinationCheck = false;
_currentDraggingState = NotDragging;
_draggingWrongObject = false;
_draggingOverWrongDestinationObject = NULL;
_finalSuccessCallback = [](cocos2d::Node*, cocos2d::Node*){};
_successCallback = [](cocos2d::Node*, cocos2d::Node*){};
_wrongDestinationObjectCallback = [](cocos2d::Node*){};
_startDraggingWrongObjectCallback = [](cocos2d::Node*){};
_startDraggingCorrectObjectCallback = [](cocos2d::Node*){};
_draggedObjectEnterCorrectDestinationCallback = [](cocos2d::Node*, cocos2d::Node*){};
_draggedObjectEnterWrongDestinationCallback = [](cocos2d::Node*, cocos2d::Node*){};
_dropTooSoonCallback = [](){};
_draggedWrongObjectCallback = [](cocos2d::Node*){};
_objectDragNDropSuccessBehaviour = [](cocos2d::Node*, cocos2d::Node*, cocos2d::Point){};
}
void ToyDragAndDropHandler::setObjectToDragExtendPercentValues(std::vector<float> values)
{
_extendPercentValues = values;
}
void ToyDragAndDropHandler::setAccurateDestinationCheck(bool accurateDstCheck)
{
_moreAccurateDestinationCheck = accurateDstCheck;
}
void ToyDragAndDropHandler::setFingerOnlyDestinationCheck(bool fingerOnlyDstCheck)
{
_fingerOnlyDestinationCheck = fingerOnlyDstCheck;
}
TouchHandlerFunction ToyDragAndDropHandler::prepareTouchBeganHandler()
{
return [&](cocos2d::Touch* touch, cocos2d::Event* event){
for(int d = 0; d < _objectsToDrag.size(); ++d){
if(!_allowDraggingInvisibleObjects && _objectsToDrag[d]->getOpacity() == 0){
continue;
}
auto grabArea = ToyMiscUtils::getExtendedActiveArea(_objectsToDrag[d], _extendPercentValues[d], _extendPercentValues[d]);
if(grabArea.containsPoint(touch->getLocation())){
_draggedObject = _objectsToDrag[d];
_draggedObjectOriginalZ = _draggedObject->getLocalZOrder();//getZOrder();
_startLocation = touch->getLocation();
_startingObjectPosition = _draggedObject->getPosition();
for(int i = ToySpriteAnimator::RF_ANIMATION_TAG_RANGE_MIN; i <= ToySpriteAnimator::RF_ANIMATION_TAG_RANGE_MAX; ++i){
auto action = _draggedObject->getActionByTag(i);
if(action){
_cachedDraggedObjectRFActionTags.push_back(i);
}
}
_draggedObject->stopAllActions();
_draggedObject->getParent()->reorderChild(_draggedObject, 100);
_startDraggingCorrectObjectCallback(_draggedObject);
// auto it = _startDraggingConcreteObjectCallbacks.find(dynamic_cast<ToyScenarioObject*>(_draggedObject)->scenarioObjectName);
// if(it != _startDraggingConcreteObjectCallbacks.end()){
// it->second(_draggedObject);
// }
_currentDraggingState = Dragging;
_draggingWrongObject = false;
return true;
}
}
// if no object found
cocos2d::Node* wrongObj = NULL;
for(int i = 0; i < _wrongDraggedObjects.size(); ++i){ //todo use extended grab area?
if(!_allowDraggingInvisibleObjects && _wrongDraggedObjects[i]->getOpacity() == 0){
continue;
}
if(ToyGeometryUtils::getBoundingBoxToWorld(_wrongDraggedObjects[i]).containsPoint(touch->getLocation())){
if(wrongObj == nullptr || wrongObj->getLocalZOrder() < _wrongDraggedObjects[i]->getLocalZOrder()){
wrongObj = _wrongDraggedObjects[i];
}
}
}
if(wrongObj){
_startDraggingWrongObjectCallback(wrongObj);
if(_allowDraggingWrongObjects){
_draggedObject = wrongObj;
_draggedObjectOriginalZ = _draggedObject->getLocalZOrder();
_startLocation = touch->getLocation();
_startingObjectPosition = _draggedObject->getPosition();
// auto it = _startDraggingConcreteObjectCallbacks.find(dynamic_cast<ToyScenarioObject*>(_draggedObject)->scenarioObjectName);
// if(it != _startDraggingConcreteObjectCallbacks.end()){
// it->second(_draggedObject);
// }
for(int i = ToySpriteAnimator::RF_ANIMATION_TAG_RANGE_MIN; i <= ToySpriteAnimator::RF_ANIMATION_TAG_RANGE_MAX; ++i){
auto action = _draggedObject->getActionByTag(i);
if(action){
_cachedDraggedObjectRFActionTags.push_back(i);
}
}
_draggedObject->stopAllActions();
_draggedObject->getParent()->reorderChild(_draggedObject, 100);
_currentDraggingState = Dragging;
_draggingWrongObject = true;
return true;
}
}
return false;
};
}
TouchHandlerFunction ToyDragAndDropHandler::prepareTouchMovedHandler()
{
return [&](cocos2d::Touch* touch, cocos2d::Event* event){
if(_draggedObject){
auto dx = touch->getLocation().x - _startLocation.x;
auto dy = touch->getLocation().y - _startLocation.y;
auto newPosition = cocos2d::Point(_startingObjectPosition.x + dx, _startingObjectPosition.y + dy);
_draggedObject->setPosition(newPosition);
// printf("POSX: %f POSY: %f\n", (_draggedObject->getPositionX()-_draggedObject->getParent()->getBoundingBox().size.width/2)/1.33/*-_draggedObject->getBoundingBox().size.width/2*/, (_draggedObject->getPositionY() - _draggedObject->getParent()->getBoundingBox().size.height/2)/1.33);
if(_moreAccurateDestinationCheck){
bool isRightObject, isWrongObject;
auto destinationObject = this->detectDestination(touch->getLocation(), isRightObject, isWrongObject);
if(isRightObject){
this->onMovingOverCorrectDestination();
}
else if(isWrongObject){
this->onMovingOverWrongDestination(destinationObject);
}
else {
this->onMovingOverNothing();
}
} else if(this->checkDraggingOverCorrectDestination(touch->getLocation())){
this->onMovingOverCorrectDestination();
} else {
auto wrongDstObj = this->checkDraggingOverWrongDestination(touch->getLocation());
if(wrongDstObj){
this->onMovingOverWrongDestination(wrongDstObj);
} else {
this->onMovingOverNothing();
}
}
}
};
}
void ToyDragAndDropHandler::onMovingOverCorrectDestination()
{
if(_currentDraggingState != DraggingOverCorrectDestination){
_draggedObjectEnterCorrectDestinationCallback(_draggedObject, _destinationObject);
}
_currentDraggingState = DraggingOverCorrectDestination;
}
void ToyDragAndDropHandler::onMovingOverWrongDestination(cocos2d::Node* wrongDestinationObject)
{
if((_currentDraggingState != DraggingOverWrongDestination || (_currentDraggingState == DraggingOverWrongDestination && _draggingOverWrongDestinationObject != wrongDestinationObject))) {
_draggedObjectEnterWrongDestinationCallback(_draggedObject, wrongDestinationObject);
}
_currentDraggingState = DraggingOverWrongDestination;
_draggingOverWrongDestinationObject = wrongDestinationObject;
}
void ToyDragAndDropHandler::onMovingOverNothing()
{
_currentDraggingState = Dragging;
_draggingOverWrongDestinationObject = NULL;
}
TouchHandlerFunction ToyDragAndDropHandler::prepareTouchEndedHandler() //todo tu dokonczyc case kiedy dragujemy zly obiekt
{
return [&](cocos2d::Touch* touch, cocos2d::Event* event){
if(_draggedObject){
if(_moreAccurateDestinationCheck){
bool isRightObject, isWrongObject;
auto destinationObject = this->detectDestination(touch->getLocation(), isRightObject, isWrongObject);
if(isRightObject){
this->onTouchEndedOverCorrectDestination();
}
else if(isWrongObject){
_wrongDestinationObjectCallback(destinationObject);
this->draggedObjectMoveBack(true);
}
else {
_dropTooSoonCallback();
this->draggedObjectMoveBack(true);
}
} else if(this->checkDraggingOverCorrectDestination(touch->getLocation())){
this->onTouchEndedOverCorrectDestination();
} else {
this->draggedObjectMoveBack(true);
auto wrongDstObj = this->checkDraggingOverWrongDestination(touch->getLocation());
if(wrongDstObj){
_wrongDestinationObjectCallback(wrongDstObj);
} else {
_dropTooSoonCallback();
}
}
_draggedObject = NULL;
}
_currentDraggingState = NotDragging;
};
}
void ToyDragAndDropHandler::onTouchEndedOverCorrectDestination()
{
if(_draggingWrongObject){
_draggedWrongObjectCallback(_draggedObject);
this->draggedObjectMoveBack(true);
} else {
_objectDragNDropSuccessBehaviour(_destinationObject, _draggedObject, _startingObjectPosition);
if(_allowMultipleDrag){
this->draggedObjectMoveBack(true);
} else {
auto iter = std::find(_objectsToDrag.begin(), _objectsToDrag.end(), _draggedObject);
_objectsToDrag.erase(iter);
}
if(_objectsToDrag.size() > 0){
_successCallback(_destinationObject, _draggedObject);
} else {
_finalSuccessCallback(_destinationObject, _draggedObject);
}
}
_draggedObject = NULL;
}
cocos2d::Node* ToyDragAndDropHandler::detectDestination(const cocos2d::Point& touchLocation, bool& isRightObject, bool& isWrongObject)
{
auto rightDestinationIntersection = ToyGeometryUtils::calculateIntersectionPercentage(ToyGeometryUtils::getBoundingBoxToWorld(_draggedObject), ToyGeometryUtils::getBoundingBoxToWorld(_destinationObject));
float greatestWrongObjectIntersection = 0;
cocos2d::Node* bestIntersectingWrongObject = NULL;
for(int i = 0; i < _wrongDestinationObjects.size(); ++i){
auto wrongObjectIntersection = ToyGeometryUtils::calculateIntersectionPercentage(ToyGeometryUtils::getBoundingBoxToWorld(_draggedObject), ToyGeometryUtils::getBoundingBoxToWorld(_wrongDestinationObjects[i]), 1);
if(wrongObjectIntersection > greatestWrongObjectIntersection){
greatestWrongObjectIntersection = wrongObjectIntersection;
bestIntersectingWrongObject = _wrongDestinationObjects[i];
}
}
cocos2d::Node* destinationObject = NULL;
isRightObject = false;
isWrongObject = false;
if(rightDestinationIntersection >= greatestWrongObjectIntersection && rightDestinationIntersection > 0){
destinationObject = _destinationObject;
isRightObject = true;
} else if(greatestWrongObjectIntersection != 0){
destinationObject = bestIntersectingWrongObject;
isWrongObject = true;
}
return destinationObject;
}
bool ToyDragAndDropHandler::checkDraggingOverCorrectDestination(const cocos2d::Point& touchLocation)
{
return _draggedObject != NULL && ((!_fingerOnlyDestinationCheck && ToyGeometryUtils::getBoundingBoxToWorld(_destinationObject).intersectsRect(ToyGeometryUtils::getBoundingBoxToWorld(_draggedObject))) || (_fingerOnlyDestinationCheck && ToyGeometryUtils::getBoundingBoxToWorld(_destinationObject).containsPoint(touchLocation)));
}
cocos2d::Node* ToyDragAndDropHandler::checkDraggingOverWrongDestination(const cocos2d::Point& touchLocation)
{
if(!_draggedObject){
return NULL;
} else {
cocos2d::Node* wrongDstObj = nullptr;
for(int i = 0; i < _wrongDestinationObjects.size(); ++i){
if(ToyGeometryUtils::getBoundingBoxToWorld(_wrongDestinationObjects[i]).intersectsRect(ToyGeometryUtils::getBoundingBoxToWorld(_draggedObject))){
wrongDstObj = _wrongDestinationObjects[i];
break;
}
}
return wrongDstObj;
}
}
void ToyDragAndDropHandler::draggedObjectMoveBack(bool restoreActions)
{
if(_draggedObject){
_draggedObject->runAction(cocos2d::Sequence::create(cocos2d::MoveTo::create(0.2, _startingObjectPosition),
cocos2d::CallFunc::create(std::bind([&](cocos2d::Node* object, int zOrder){
object->getParent()->reorderChild(object, zOrder);
// printf("z order: %d", zOrder);
}, _draggedObject, _draggedObjectOriginalZ)), nullptr));
if(restoreActions){
for(int i = 0; i < _cachedDraggedObjectRFActionTags.size(); ++i){
int actionTag = _cachedDraggedObjectRFActionTags[i];
ToySpriteAnimator::restoreRFAction(_draggedObject, actionTag);
}
}
_cachedDraggedObjectRFActionTags.clear();
}
}