group.h

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#ifndef NNGN_INPUT_GROUP_H
#define NNGN_INPUT_GROUP_H
 
#include <unordered_map>
 
#include "input.h"
 
namespace nngn {
 
class BindingGroup {
    struct Info { int ref = {}; Input::Selector selector = {}; };
    std::unordered_map<int, Info> m = {};
    BindingGroup *m_next = nullptr;
public:
    BindingGroup *next(void) const { return this->m_next; }
    BindingGroup *set_next(BindingGroup *p);
    Info for_key(int key) const;
    Info for_event(int key, Input::Action action, Input::Modifier mods) const;
    bool add(lua_State *L, int key, Input::Selector s);
    bool remove(lua_State *L, int key);
};
 
inline BindingGroup *BindingGroup::set_next(BindingGroup *p) {
    return std::exchange(this->m_next, p);
}
 
}
 
#endif