/**************************************************************************** Copyright (c) 2010-2012 cocos2d-x.org Copyright (c) 2008-2010 Ricardo Quesada Copyright (c) 2009 Valentin Milea Copyright (c) 2011 Zynga Inc. http://www.cocos2d-x.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "CCActionManager.h" #include "CCNode.h" #include "CCScheduler.h" #include "ccMacros.h" #include "ccCArray.h" #include "uthash.h" #include "CCSet.h" NS_CC_BEGIN // // singleton stuff // typedef struct _hashElement { struct _ccArray *actions; Node *target; int actionIndex; Action *currentAction; bool currentActionSalvaged; bool paused; UT_hash_handle hh; } tHashElement; ActionManager::ActionManager(void) : _targets(NULL), _currentTarget(NULL), _currentTargetSalvaged(false) { } ActionManager::~ActionManager(void) { CCLOGINFO("deallocing ActionManager: %p", this); removeAllActions(); } // private void ActionManager::deleteHashElement(tHashElement *element) { ccArrayFree(element->actions); HASH_DEL(_targets, element); element->target->release(); free(element); } void ActionManager::actionAllocWithHashElement(tHashElement *element) { // 4 actions per Node by default if (element->actions == NULL) { element->actions = ccArrayNew(4); }else if (element->actions->num == element->actions->max) { ccArrayDoubleCapacity(element->actions); } } void ActionManager::removeActionAtIndex(int index, tHashElement *element) { Action *action = (Action*)element->actions->arr[index]; if (action == element->currentAction && (! element->currentActionSalvaged)) { element->currentAction->retain(); element->currentActionSalvaged = true; } ccArrayRemoveObjectAtIndex(element->actions, index, true); // update actionIndex in case we are in tick. looping over the actions if (element->actionIndex >= index) { element->actionIndex--; } if (element->actions->num == 0) { if (_currentTarget == element) { _currentTargetSalvaged = true; } else { deleteHashElement(element); } } } // pause / resume void ActionManager::pauseTarget(Node *target) { tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { element->paused = true; } } void ActionManager::resumeTarget(Node *target) { tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { element->paused = false; } } Vector ActionManager::pauseAllRunningActions() { Vector idsWithActions; for (tHashElement *element=_targets; element != NULL; element = (tHashElement *)element->hh.next) { if (! element->paused) { element->paused = true; idsWithActions.pushBack(element->target); } } return idsWithActions; } void ActionManager::resumeTargets(const Vector& targetsToResume) { targetsToResume.forEach([this](Node* node){ this->resumeTarget(node); }); } // run void ActionManager::addAction(Action *action, Node *target, bool paused) { CCASSERT(action != NULL, ""); CCASSERT(target != NULL, ""); tHashElement *element = NULL; // we should convert it to Object*, because we save it as Object* Object *tmp = target; HASH_FIND_PTR(_targets, &tmp, element); if (! element) { element = (tHashElement*)calloc(sizeof(*element), 1); element->paused = paused; target->retain(); element->target = target; HASH_ADD_PTR(_targets, target, element); } actionAllocWithHashElement(element); CCASSERT(! ccArrayContainsObject(element->actions, action), ""); ccArrayAppendObject(element->actions, action); action->startWithTarget(target); } // remove void ActionManager::removeAllActions() { for (tHashElement *element = _targets; element != NULL; ) { auto target = element->target; element = (tHashElement*)element->hh.next; removeAllActionsFromTarget(target); } } void ActionManager::removeAllActionsFromTarget(Node *target) { // explicit null handling if (target == NULL) { return; } tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { if (ccArrayContainsObject(element->actions, element->currentAction) && (! element->currentActionSalvaged)) { element->currentAction->retain(); element->currentActionSalvaged = true; } ccArrayRemoveAllObjects(element->actions); if (_currentTarget == element) { _currentTargetSalvaged = true; } else { deleteHashElement(element); } } else { // CCLOG("cocos2d: removeAllActionsFromTarget: Target not found"); } } void ActionManager::removeAction(Action *action) { // explicit null handling if (action == NULL) { return; } tHashElement *element = NULL; Object *target = action->getOriginalTarget(); HASH_FIND_PTR(_targets, &target, element); if (element) { auto i = ccArrayGetIndexOfObject(element->actions, action); if (i != CC_INVALID_INDEX) { removeActionAtIndex(i, element); } } else { CCLOG("cocos2d: removeAction: Target not found"); } } void ActionManager::removeActionByTag(int tag, Node *target) { CCASSERT(tag != Action::INVALID_TAG, ""); CCASSERT(target != NULL, ""); tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { auto limit = element->actions->num; for (int i = 0; i < limit; ++i) { Action *action = (Action*)element->actions->arr[i]; if (action->getTag() == (int)tag && action->getOriginalTarget() == target) { removeActionAtIndex(i, element); break; } } } } // get // XXX: Passing "const O *" instead of "const O&" because HASH_FIND_IT requries the address of a pointer // and, it is not possible to get the address of a reference Action* ActionManager::getActionByTag(int tag, const Node *target) const { CCASSERT(tag != Action::INVALID_TAG, ""); tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { if (element->actions != NULL) { auto limit = element->actions->num; for (int i = 0; i < limit; ++i) { Action *action = (Action*)element->actions->arr[i]; if (action->getTag() == (int)tag) { return action; } } } CCLOG("cocos2d : getActionByTag(tag = %d): Action not found", tag); } else { // CCLOG("cocos2d : getActionByTag: Target not found"); } return NULL; } // XXX: Passing "const O *" instead of "const O&" because HASH_FIND_IT requries the address of a pointer // and, it is not possible to get the address of a reference int ActionManager::getNumberOfRunningActionsInTarget(const Node *target) const { tHashElement *element = NULL; HASH_FIND_PTR(_targets, &target, element); if (element) { return element->actions ? element->actions->num : 0; } return 0; } // main loop void ActionManager::update(float dt) { for (tHashElement *elt = _targets; elt != NULL; ) { _currentTarget = elt; _currentTargetSalvaged = false; if (! _currentTarget->paused) { // The 'actions' MutableArray may change while inside this loop. for (_currentTarget->actionIndex = 0; _currentTarget->actionIndex < _currentTarget->actions->num; _currentTarget->actionIndex++) { _currentTarget->currentAction = (Action*)_currentTarget->actions->arr[_currentTarget->actionIndex]; if (_currentTarget->currentAction == NULL) { continue; } _currentTarget->currentActionSalvaged = false; _currentTarget->currentAction->step(dt); if (_currentTarget->currentActionSalvaged) { // The currentAction told the node to remove it. To prevent the action from // accidentally deallocating itself before finishing its step, we retained // it. Now that step is done, it's safe to release it. _currentTarget->currentAction->release(); } else if (_currentTarget->currentAction->isDone()) { _currentTarget->currentAction->stop(); Action *action = _currentTarget->currentAction; // Make currentAction nil to prevent removeAction from salvaging it. _currentTarget->currentAction = NULL; removeAction(action); } _currentTarget->currentAction = NULL; } } // elt, at this moment, is still valid // so it is safe to ask this here (issue #490) elt = (tHashElement*)(elt->hh.next); // only delete currentTarget if no actions were scheduled during the cycle (issue #481) if (_currentTargetSalvaged && _currentTarget->actions->num == 0) { deleteHashElement(_currentTarget); } } // issue #635 _currentTarget = NULL; } NS_CC_END