File content as of revision 13:59e17cab320a:

#include "Input.h"
#include "Gamepad.h"
#include "mbed.h" // TODO DELETE

namespace Input {
    
    enum State {RELEASED, RELEASED_FRAME, HIT_FRAME, HELD};
    Gamepad * gamepad;
    const int NUMBER_OF_BUTTONS = 4;
    State states[4]; // NUM_OF_BS
    
    void init() {
        gamepad = new Gamepad();
        gamepad->init();
        
        for (int i = 0; i < NUMBER_OF_BUTTONS; i++) {
            states[i] = RELEASED;
        }
    }
    
    void deinit() {
        delete gamepad;
    }
    
    void update() {
        // update existing states
        for (int i = 0; i < NUMBER_OF_BUTTONS; i++) {
            if (states[i] == RELEASED_FRAME) {
                states[i] = RELEASED;
            }
            if (states[i] == HIT_FRAME) {
                states[i] = HELD;
            }
        }
        
        // check inputs
        if (gamepad->check_event(Gamepad::A_PRESSED)) {
            states[LEFT] = HIT_FRAME;
        }
        if (gamepad->check_event(Gamepad::Y_PRESSED)) {
            states[RIGHT] = HIT_FRAME;
        }
        if (gamepad->check_event(Gamepad::X_PRESSED)) {
            states[UP] = HIT_FRAME;
        }
        if (gamepad->check_event(Gamepad::B_PRESSED)) {
            states[DOWN] = HIT_FRAME;
        }
    }
    
    bool buttonHit(Button button) {
        return states[button] == HIT_FRAME;
    }
    
    bool buttonHeld(Button button) {
        return states[button] == HIT_FRAME
            || states[button] == HELD;
    }
}