134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
#include "..\e2dmanager.h"
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#include "..\e2dnode.h"
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#include "..\e2dtool.h"
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e2d::CollisionManager * e2d::CollisionManager::_instance = nullptr;
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e2d::CollisionManager * e2d::CollisionManager::getInstance()
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{
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if (!_instance)
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_instance = new (std::nothrow) CollisionManager;
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return _instance;
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}
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void e2d::CollisionManager::destroyInstance()
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{
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if (_instance)
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{
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delete _instance;
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_instance = nullptr;
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}
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}
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e2d::CollisionManager::CollisionManager()
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{
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}
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e2d::CollisionManager::~CollisionManager()
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{
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}
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void e2d::CollisionManager::__addCollider(Collider * collider)
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{
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_colliders.push_back(collider);
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}
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void e2d::CollisionManager::__removeCollider(Collider * collider)
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{
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auto iter = std::find(_colliders.begin(), _colliders.end(), collider);
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if (iter != _colliders.end())
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{
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_colliders.erase(iter);
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}
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}
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void e2d::CollisionManager::__updateCollider(Collider* collider)
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{
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auto game = Game::getInstance();
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if (game->isPaused() ||
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!game->getConfig().isCollisionEnabled() ||
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game->isTransitioning())
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return;
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std::vector<Collider*> currColliders;
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currColliders.reserve(_colliders.size());
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std::copy_if(
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_colliders.begin(),
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_colliders.end(),
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std::back_inserter(currColliders),
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[this, collider](Collider* passive) -> bool
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{
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return collider != passive &&
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passive->getNode()->isVisible() &&
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collider->getNode()->getParentScene() == passive->getNode()->getParentScene() &&
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this->isCollidable(collider->getNode(), passive->getNode());
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}
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);
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for (const auto& passive : currColliders)
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{
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// 判断两碰撞体交集情况
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Collider::Relation relation = collider->getRelationWith(passive);
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// 忽略 UNKNOWN 和 DISJOIN 情况
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if (relation != Collider::Relation::Unknown &&
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relation != Collider::Relation::Disjoin)
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{
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auto activeNode = collider->getNode();
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auto passiveNode = passive->getNode();
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// 触发两次碰撞事件
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Collision activeCollision(passiveNode, relation);
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if (dynamic_cast<EventHandler*>(activeNode->getParentScene()))
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dynamic_cast<EventHandler*>(activeNode->getParentScene())->handle(activeCollision);
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if (dynamic_cast<EventHandler*>(activeNode))
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dynamic_cast<EventHandler*>(activeNode)->handle(activeCollision);
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Collision passiveCollision(activeNode, passive->getRelationWith(collider));
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if (dynamic_cast<EventHandler*>(passiveNode->getParentScene()))
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dynamic_cast<EventHandler*>(passiveNode->getParentScene())->handle(passiveCollision);
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if (dynamic_cast<EventHandler*>(passiveNode))
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dynamic_cast<EventHandler*>(passiveNode)->handle(passiveCollision);
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}
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}
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}
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void e2d::CollisionManager::addName(const String & name1, const String & name2)
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{
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if (!name1.isEmpty() && !name2.isEmpty())
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{
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_collisionList.insert(std::make_pair(name1.getHashCode(), name2.getHashCode()));
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}
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}
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void e2d::CollisionManager::addName(const std::vector<std::pair<String, String> >& names)
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{
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for (const auto& name : names)
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{
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if (!name.first.isEmpty() && !name.second.isEmpty())
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{
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_collisionList.insert(std::make_pair(name.first.getHashCode(), name.second.getHashCode()));
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}
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}
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}
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bool e2d::CollisionManager::isCollidable(Node * node1, Node * node2)
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{
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return CollisionManager::isCollidable(node1->getName(), node2->getName());
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}
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bool e2d::CollisionManager::isCollidable(const String & name1, const String & name2)
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{
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size_t hashName1 = name1.getHashCode(),
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hashName2 = name2.getHashCode();
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auto pair1 = std::make_pair(hashName1, hashName2),
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pair2 = std::make_pair(hashName2, hashName1);
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for (const auto& pair : _collisionList)
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{
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if (pair == pair1 || pair == pair2)
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{
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return true;
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}
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}
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return false;
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}
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