#include "stateManager.h"
#include "abstractAppState.h"

namespace game{
		namespace core{
        void StateManager::attachState(AbstractAppState *a) {
            bool alreadyAttached = false;
            for (int i = 0; i < appStates.size()&&!alreadyAttached; i++)
                if (appStates[i] == a)
                    alreadyAttached = true;
            if (!alreadyAttached) {
                a->onAttachment();
                appStates.push_back(a);
            }
        }

        void StateManager::dettachState(AbstractAppState *a) {
            bool alreadyDetached = false;
            for (int i = 0; i < appStates.size()&&!alreadyDetached; i++)
                if (appStates[i] == a)
                    alreadyDetached = true;
            if (!alreadyDetached) {
                a->onDetachment();
                for (int i = 0; i < appStates.size(); i++)
                    if (a == appStates[i]) {
                        appStates.erase(appStates.begin() + i);
                    }
            }
        }

        void StateManager::update() {
            for (AbstractAppState *a : appStates)
                if (a->isAttached() && a)
                    a->update();
        }

        AbstractAppState* StateManager::getAppState(AppStateTypes t) {
            AbstractAppState *state = nullptr;
            for (AbstractAppState *a : appStates)
                if (a->getType() == t)
                    state = a;
            return state;
        }
		}
}