Joystick.hpp

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#ifndef ORG_EEROS_HAL_JOYSTICK_HPP_
#define ORG_EEROS_HAL_JOYSTICK_HPP_

#include <string>
#include <functional>
#include <linux/joystick.h>

#define JOYSTICK_BUTTON_COUNT (16)
#define JOYSTICK_AXIS_COUNT (8)

namespace eeros {
    namespace hal {
        struct JoystickState
        {
            double axis[JOYSTICK_AXIS_COUNT];
            bool button_state[JOYSTICK_BUTTON_COUNT];
            bool button_up[JOYSTICK_BUTTON_COUNT];
            bool button_down[JOYSTICK_BUTTON_COUNT];
            
            static const double axis_max;
        };
        
        class Joystick
        {
        public:
            explicit Joystick();
            ~Joystick();
            virtual bool open(const char* device);
            virtual void close();
            virtual void loop();
            virtual void on_event(std::function<void(struct js_event)> action);
            virtual void on_button(std::function<void(int, bool)> action);
            virtual void on_axis(std::function<void(int, double)> action);
            
            virtual std::string name();
            
            JoystickState last;
            JoystickState current;
            
        private:
            int fd;
            std::function<void(struct js_event)> event_action;
            std::function<void(int, bool)> button_action;
            std::function<void(int, double)> axis_action;
        };
    }
}

#endif // ORG_EEROS_HAL_JOYSTICK_HPP_