Input8.cs

using UnityEngine;
using System.Collections;

public class Input8 : MonoBehaviour
{
    public enum ButtonCode
    {
        Face1,
        Face2,
        Face3,
        Face4,
        LeftBumper,
        RightBumper,
        LeftStickButton,
        RightStickButton,
    }

    public enum AxisCode
    {
        LeftStickX,
        LeftStickY,
        RightStickX,
        RightStickY,
        LeftTrigger,
        RightTrigger,
    }

    [System.Serializable]
    public class ButtonEntry
    {
        public string name;
        public ButtonCode[] buttonCodes;
        public KeyCode[] keyCodes;
    }

    [System.Serializable]
    public class AxisEntry
    {
        public string name;
        public AxisCode[] axisCodes;
        public KeyCode[] keyCodes;
    }

    public bool invertY;
    public float deadZone;
    public ButtonEntry[] buttonEntries;
    public AxisEntry[] axisEntries;


    static Input8 instance;

    enum Platform
    {
        Unknown,
        Windows,
        Mac,
    }

    static Platform platform;
    static KeyCode face1KeyCode;
    static KeyCode face2KeyCode;
    static KeyCode face3KeyCode;
    static KeyCode face4KeyCode;
    static KeyCode leftBumperKeyCode;
    static KeyCode rightBumperKeyCode;
    static KeyCode leftStickButtonKeyCode;
    static KeyCode rightStickButtonKeyCode;

    static string leftStickXName;
    static string leftStickYName;
    static string rightStickXName;
    static string rightStickYName;
    static string triggerLeftName;
    static string triggerRightName;

    void Awake()
    {
        if (instance)
        {
            Destroy(gameObject);
            return;
        }
        instance = this;

        if (Application.platform == RuntimePlatform.OSXEditor || Application.platform == RuntimePlatform.OSXPlayer)
        {
            platform = Platform.Mac;

            face1KeyCode = KeyCode.JoystickButton16;
            face2KeyCode = KeyCode.JoystickButton17;
            face3KeyCode = KeyCode.JoystickButton18;
            face4KeyCode = KeyCode.JoystickButton19;
            leftBumperKeyCode = KeyCode.JoystickButton13;
            rightBumperKeyCode = KeyCode.JoystickButton14;
            leftStickButtonKeyCode = KeyCode.JoystickButton11;
            rightStickButtonKeyCode = KeyCode.JoystickButton12;

            leftStickXName = "joystick 1 analog 0";
            leftStickYName = "joystick 1 analog 1";
            rightStickXName = "joystick 1 analog 2";
            rightStickYName = "joystick 1 analog 3";
            triggerLeftName = "joystick 1 analog 4";
            triggerRightName = "joystick 1 analog 5";
        }
        else if (Application.platform == RuntimePlatform.WindowsEditor || Application.platform == RuntimePlatform.WindowsPlayer)
        {
            platform = Platform.Windows;

            face1KeyCode = KeyCode.JoystickButton0;
            face2KeyCode = KeyCode.JoystickButton1;
            face3KeyCode = KeyCode.JoystickButton2;
            face4KeyCode = KeyCode.JoystickButton3;
            leftBumperKeyCode = KeyCode.JoystickButton4;
            rightBumperKeyCode = KeyCode.JoystickButton5;
            leftStickButtonKeyCode = KeyCode.JoystickButton8;
            rightStickButtonKeyCode = KeyCode.JoystickButton9;

            leftStickXName = "joystick 1 analog 0";
            leftStickYName = "joystick 1 analog 1";
            rightStickXName = "joystick 1 analog 3";
            rightStickYName = "joystick 1 analog 4";
            triggerLeftName = "joystick 1 analog 2";
            triggerRightName = "joystick 1 analog 2";
        }
    }

    public static bool GetButton(ButtonCode buttonCode)
    {
        switch (buttonCode)
        {
            case ButtonCode.Face1:
                return Input.GetKey(face1KeyCode);
            case ButtonCode.Face2:
                return Input.GetKey(face2KeyCode);
            case ButtonCode.Face3:
                return Input.GetKey(face3KeyCode);
            case ButtonCode.Face4:
                return Input.GetKey(face4KeyCode);
            case ButtonCode.LeftBumper:
                return Input.GetKey(leftBumperKeyCode);
            case ButtonCode.RightBumper:
                return Input.GetKey(rightBumperKeyCode);
            case ButtonCode.LeftStickButton:
                return Input.GetKey(leftStickButtonKeyCode);
            case ButtonCode.RightStickButton:
                return Input.GetKey(rightStickButtonKeyCode);
        }
        return false;
    }

    public static bool GetButtonDown(ButtonCode buttonCode)
    {
        switch (buttonCode)
        {
            case ButtonCode.Face1:
                return Input.GetKeyDown(face1KeyCode);
            case ButtonCode.Face2:
                return Input.GetKeyDown(face2KeyCode);
            case ButtonCode.Face3:
                return Input.GetKeyDown(face3KeyCode);
            case ButtonCode.Face4:
                return Input.GetKeyDown(face4KeyCode);
            case ButtonCode.LeftBumper:
                return Input.GetKeyDown(leftBumperKeyCode);
            case ButtonCode.RightBumper:
                return Input.GetKeyDown(rightBumperKeyCode);
            case ButtonCode.LeftStickButton:
                return Input.GetKeyDown(leftStickButtonKeyCode);
            case ButtonCode.RightStickButton:
                return Input.GetKeyDown(rightStickButtonKeyCode);
        }
        return false;
    }

    public static bool GetButtonUp(ButtonCode buttonCode)
    {
        switch (buttonCode)
        {
            case ButtonCode.Face1:
                return Input.GetKeyUp(face1KeyCode);
            case ButtonCode.Face2:
                return Input.GetKeyUp(face2KeyCode);
            case ButtonCode.Face3:
                return Input.GetKeyUp(face3KeyCode);
            case ButtonCode.Face4:
                return Input.GetKeyUp(face4KeyCode);
            case ButtonCode.LeftBumper:
                return Input.GetKeyUp(leftBumperKeyCode);
            case ButtonCode.RightBumper:
                return Input.GetKeyUp(rightBumperKeyCode);
            case ButtonCode.LeftStickButton:
                return Input.GetKeyUp(leftStickButtonKeyCode);
            case ButtonCode.RightStickButton:
                return Input.GetKeyUp(rightStickButtonKeyCode);
        }
        return false;
    }

    public static float GetAxis(AxisCode axisCode)
    {
        switch (axisCode)
        {
            case AxisCode.LeftStickX:
                return Input.GetAxis(leftStickXName);
            case AxisCode.LeftStickY:
                return Input.GetAxis(leftStickYName) * (instance.invertY?-1f:1f);
            case AxisCode.RightStickX:
                return Input.GetAxis(rightStickXName);
            case AxisCode.RightStickY:
                return Input.GetAxis(rightStickYName) * (instance.invertY?-1f:1f);
            case AxisCode.LeftTrigger:
            {
                if (platform == Platform.Mac)
                    return (Input.GetAxis(triggerLeftName) + 1f) / 2f;
                else if (platform == Platform.Windows)
                {
                    float v = Input.GetAxis(triggerLeftName);
                    if (v > 0f)
                        return v;
                }
                else
                    return Input.GetAxis(triggerLeftName);
            }
            break;
            case AxisCode.RightTrigger:
            {
                if (platform == Platform.Mac)
                    return (Input.GetAxis(triggerRightName) + 1f) / 2f;
                else if (platform == Platform.Windows)
                {
                    float v = Input.GetAxis(triggerRightName);
                    if (v < 0f)
                        return -v;
                }
                else
                    return Input.GetAxis(triggerRightName);
            }
            break;
        }
        return 0f;
    }

    public static bool GetButtonDown(string buttonName)
    {
        ButtonEntry buttonEntry = instance.GetButtonEntryByName(buttonName);
        if (buttonEntry != null)
        {
            foreach (KeyCode keyCode in buttonEntry.keyCodes)
            {
                if (Input.GetKeyDown(keyCode))
                {
                    return true;
                }
            }

            foreach (ButtonCode buttonCode in buttonEntry.buttonCodes)
            {
                if (GetButtonDown(buttonCode))
                {
                    return true;
                }
            }
        }
        return false;
    }

    public static bool GetButtonUp(string buttonName)
    {
        ButtonEntry buttonEntry = instance.GetButtonEntryByName(buttonName);
        if (buttonEntry != null)
        {
            foreach (KeyCode keyCode in buttonEntry.keyCodes)
            {
                if (Input.GetKeyUp(keyCode))
                {
                    return true;
                }
            }

            foreach (ButtonCode buttonCode in buttonEntry.buttonCodes)
            {
                if (GetButtonUp(buttonCode))
                {
                    return true;
                }
            }
        }
        return false;
    }

    public static bool GetButton(string buttonName)
    {
        ButtonEntry buttonEntry = instance.GetButtonEntryByName(buttonName);
        if (buttonEntry != null)
        {
            foreach (KeyCode keyCode in buttonEntry.keyCodes)
            {
                if (Input.GetKey(keyCode))
                {
                    return true;
                }
            }

            foreach (ButtonCode buttonCode in buttonEntry.buttonCodes)
            {
                if (GetButton(buttonCode))
                {
                    return true;
                }
            }
        }
        return false;
    }

    public static float GetAxis(string axisName)
    {
        float axisValue = 0f;
        AxisEntry axisEntry = instance.GetAxisEntryByName(axisName);
        if (axisEntry != null)
        {

            foreach (AxisCode axisCode in axisEntry.axisCodes)
            {
                axisValue += GetAxis(axisCode);
            }

            for (int i = 0; i < axisEntry.keyCodes.Length; i++)
            {
                if (Input.GetKey(axisEntry.keyCodes[i]))
                {
                    axisValue += ((i % 2 == 0)?-1f:1f);
                }
            }
        }
        if (Mathf.Abs(axisValue) < instance.deadZone)
        {
            axisValue = 0f;
        }
        return axisValue;
    }

    public static float GetAxisRaw(string axisName)
    {
        return GetAxis(axisName);
    }

    ButtonEntry GetButtonEntryByName(string name)
    {
        foreach (ButtonEntry buttonEntry in buttonEntries)
        {
            if (buttonEntry.name == name)
            {
                return buttonEntry;
            }
        }
        Debug.Log("Could not find ButtonEntry named: " + name);
        return null;
    }

    AxisEntry GetAxisEntryByName(string name)
    {
        foreach (AxisEntry axisEntry in axisEntries)
        {
            if (axisEntry.name == name)
            {
                return axisEntry;
            }
        }
        Debug.Log("Could not find AxisEntry named: " + name);
        return null;
    }
}