using System.Collections;

using System.Collections.Generic;

using UnityEngine;

​

enum InputType

{

    DOWN,

    HOLD,

    UP

}

​

struct InputValue

{

    public InputValue(AttackButton _button, InputType _type, float _time)

    {

        button = _button;

        type = _type;

        lifetime = _time;

    }

​

    public AttackButton button;

    public InputType type;

    public float lifetime;

}

​

public class InputSystem : Singleton<InputSystem>

{

    public float inputLifetime = 2f;

    List<InputValue> buffer = new List<InputValue>();

    protected InputSystem()

    {

    }

​

    private void Update()

    {

        updateBuffer();

    }

​

    void updateBuffer()

    {

        string bufferString = "";

        //clear outdated inputs

        for (int i = buffer.Count - 1; i >= 0; --i)

        {

            if (buffer[i].lifetime <= Time.time)

                buffer.RemoveAt(i);

        }

​

        checkForInput();

        for (int i = buffer.Count - 1; i >= 0; --i)

        {

            bufferString += buffer[i].button + " ";

        }

​

        if (bufferString != "")

            Debug.Log(bufferString);

    }

​

    void checkForInput()

    {

        //fill buffer with new inputs

        checkByKeycode(AttackButton.A, KeyCode.Joystick1Button0);

        checkByKeycode(AttackButton.B, KeyCode.Joystick1Button1);

        checkByKeycode(AttackButton.X, KeyCode.Joystick1Button2);

        checkByKeycode(AttackButton.Y, KeyCode.Joystick1Button3);

        if (Input.GetAxis("ControllerTriggers") < 0)

        {

            buffer.Add(new InputValue(AttackButton.LEFT_TRIGGER, InputType.HOLD, Time.time + inputLifetime));

        }

​

        if (Input.GetAxis("ControllerTriggers") > 0)

        {

            buffer.Add(new InputValue(AttackButton.RIGHT_TRIGGER, InputType.HOLD, Time.time + inputLifetime));

        }

    }

​

    void checkByKeycode(AttackButton _button, KeyCode _code)

    {

        if (Input.GetKeyDown(_code))

        {

            buffer.Add(new InputValue(_button, InputType.DOWN, Time.time + inputLifetime));

        }

        else if (Input.GetKey(_code))

        {

            buffer.Add(new InputValue(_button, InputType.HOLD, Time.time + inputLifetime));

        }

        else if (Input.GetKeyUp(_code))

        {

            buffer.Add(new InputValue(_button, InputType.UP, Time.time + inputLifetime));

        }

    }

​

    public static bool GetButtonDown(AttackButton _button)

    {

        foreach (InputValue value in Instance.buffer)

        {

            if (value.button == _button && value.type == InputType.DOWN)

                return true;

        }

​

        return false;

    }

​

    public static bool GetButton(AttackButton _button)

    {

        foreach (InputValue value in Instance.buffer)

        {

            if (value.button == _button && value.type == InputType.HOLD)

                return true;

        }

​

        return false;

    }

​

    public static bool GetButtonUp(AttackButton _button)

    {

        foreach (InputValue value in Instance.buffer)

        {

            if (value.button == _button && value.type == InputType.UP)

                return true;

        }

​

        return false;

    }

}