FreezeFrameEvent.h

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#pragma once
 
#include <event/EventBase.h>
 
namespace red {
 
    /**
     * @brief Actor event that will pause execution of all actors except the ones specified in the whitelist.
     * @tparam T Actor types to be whitelisted. These will continue execution.
     * @details Push this to @ref EventMgr to freeze, then call @c unfreeze() to end the event.
     */
    template <typename... T>
    class FreezeFrameEvent : public EventBase {
    public:
        /**
         * @brief Ends the freeze event and resumes execution of all actors.
         */
        void unfreeze() {
            mFrozen = false;
        }
 
    private:
        bool isJoin(const ActorBase* actor) const override {
            if ((... || (sead::DynamicCast<T>(actor) != nullptr))) {
                return true;
            }
 
            return !mFrozen;
        }
 
        Result execute() override {
            if (mFrozen)
                return cResult_Keep;
 
            return cResult_Exit;
        }
 
    private:
        bool mFrozen = true;
    };
 
} // namespace red