//------------------------------------------------------------------------------------------------
// Edy's Vehicle Physics
// (c) Angel Garcia "Edy" - Oviedo, Spain
// http://www.edy.es
//------------------------------------------------------------------------------------------------

using UnityEngine;

namespace EVP
{
    public class VehicleStandardInput : MonoBehaviour
    {
        public VehicleController target;

        public bool continuousForwardAndReverse = true;

        public enum ThrottleAndBrakeInput
        {
            SingleAxis,
            SeparateAxes
        };

        public ThrottleAndBrakeInput throttleAndBrakeInput = ThrottleAndBrakeInput.SingleAxis;

        public string steerAxis = "Horizontal";
        public string throttleAndBrakeAxis = "Vertical";
        public string throttleAxis = "Fire2";
        public string brakeAxis = "Fire3";
        public string handbrakeAxis = "Jump";
        public KeyCode resetVehicleKey = KeyCode.Return;

        bool m_doReset = false;

        public float xxxx;
        void OnEnable()
        {
            // Cache vehicle

            if (target == null)
                target = GetComponent<VehicleController>();
        }


        void Update()
        {
            if (target == null) return;

            if (Input.GetKeyDown(resetVehicleKey)) m_doReset = true;
        }
        public void SetThrottleValue(float value)
        {
            // 将输入值从 0-100 范围映射到 0-1 范围
            xxxx = Mathf.Clamp(value, 0, 100) / 100.0f;
        }

        public float steerInput;
        public float forwardInput;
        public float reverseInput;
        
        
        // public float xxxxxx;
        void FixedUpdate()
        {
            if (target == null) return;

            // Read the user input

             steerInput = Mathf.Clamp(Input.GetAxis(steerAxis), -1.0f, 1.0f);
            float handbrakeInput = Mathf.Clamp01(Input.GetAxis(handbrakeAxis));

             forwardInput = 0.0f;
             reverseInput = 0.0f;
            // Debug.Log("前轮控制左右的参数----->" + steerInput);
         
            if (throttleAndBrakeInput == ThrottleAndBrakeInput.SeparateAxes)
            {
                forwardInput = Mathf.Clamp01(Input.GetAxis(throttleAxis));
                reverseInput = Mathf.Clamp01(Input.GetAxis(brakeAxis));
            }
            else
            {
                forwardInput = Mathf.Clamp01(Input.GetAxis(throttleAndBrakeAxis));
                reverseInput = Mathf.Clamp01(-Input.GetAxis(throttleAndBrakeAxis));
            }
        //     forwardInput = Mathf.Clamp01(xxxx);
        // Debug.Log(Mathf.Clamp01(xxxx));
            // forwardInput = xxxxxx;
            // Debug.Log("前轮控制左右的参数----->" + steerInput);
            // Debug.Log("往前的参数----->" + forwardInput);
            // Debug.Log("往后的参数----->" + reverseInput);
            // Translate forward/reverse to vehicle input

            float throttleInput = 0.0f;
            float brakeInput = 0.0f;

            if (continuousForwardAndReverse)
            {
                float minSpeed = 0.1f;
                float minInput = 0.1f;

                if (target.speed > minSpeed)
                {
                    throttleInput = forwardInput;
                    brakeInput = reverseInput;
                }
                else
                {
                    if (reverseInput > minInput)
                    {
                        throttleInput = -reverseInput;
                        brakeInput = 0.0f;
                    }
                    else if (forwardInput > minInput)
                    {
                        if (target.speed < -minSpeed)
                        {
                            throttleInput = 0.0f;
                            brakeInput = forwardInput;
                        }
                        else
                        {
                            throttleInput = forwardInput;
                            brakeInput = 0;
                        }
                    }
                }
            }
            else
            {
                bool reverse = Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl);

                if (!reverse)
                {
                    throttleInput = forwardInput;
                    brakeInput = reverseInput;
                }
                else
                {
                    throttleInput = -reverseInput;
                    brakeInput = 0;
                }
            }


            // Apply input to vehicle

            // target.steerInput = steerInput;
            // target.throttleInput = throttleInput;
            // target.brakeInput = brakeInput;
            // target.handbrakeInput = handbrakeInput;
            
            target.steerInput = steerInput;
            target.throttleInput = throttleInput;
            target.brakeInput = brakeInput;
            target.handbrakeInput = handbrakeInput;
            
            
            // Debug.Log(throttleInput+"---"+brakeInput+"---"+handbrakeInput);
            // Do a vehicle reset


            if (m_doReset)
            {
                target.ResetVehicle();
                m_doReset = false;
            }
        }

        /* Code from Tim Korving for better handling the continuous forward
            and reverse mode. To be adapted and tested.

        void HandleVerticalInputModeInterrupt()                                         // Handle Interrupt input mode for forward reverse
            {
            if (m_MoveState == VERTICAL_INPUT_STATE.STATIONARY)
                {
                if (m_ForwardInput >= m_MinInput)                                       // If forward input...
                    {
                    ChangeVerticalInputState(VERTICAL_INPUT_STATE.FORWARD);
                    m_ThrottleInput = m_ForwardInput;                                   // Throttle is forward input
                    m_BrakeInput = 0f;                                                  // Release the brakes
                    }
                else if (m_ReverseInput >= m_MinInput)                                  // If reverse input...
                    {
                    ChangeVerticalInputState(VERTICAL_INPUT_STATE.REVERSE);
                    m_ThrottleInput = -m_ReverseInput;                                  // Throttle is inverse reverse input (eek)
                    m_BrakeInput = 0f;                                                  // Release the brakes
                    }
                else
                    {
                    ChangeVerticalInputState(VERTICAL_INPUT_STATE.STATIONARY);
                    }
                }
            else if (m_MoveState == VERTICAL_INPUT_STATE.FORWARD)
                {
                if (m_EVPController.speed >= m_MinSpeed)                                // Currently in forward motion
                    {
                    m_ThrottleInput = m_ForwardInput;                                   // Throttle is forward input
                    m_BrakeInput = m_ReverseInput;                                      // Brake is reverse input
                    }
                else if (m_ForwardInput < m_MinInput && m_ReverseInput < m_MinInput)
                    {
                    ChangeVerticalInputState(VERTICAL_INPUT_STATE.STATIONARY);
                    m_BrakeInput = 0f;
                    m_ForwardInput = 0f;
                    m_ReverseInput = 0f;
                    }
                }
            else if (m_MoveState == VERTICAL_INPUT_STATE.REVERSE)
                {
                if (m_EVPController.speed <= -m_MinSpeed)                               // Currently in backward motion
                    {
                    m_ThrottleInput = -m_ReverseInput;                                  // Throttle is inverse reverse input (?)
                    m_BrakeInput = m_ForwardInput;                                      // Brake is forward input
                    }
                else if (m_ForwardInput < m_MinInput && m_ReverseInput < m_MinInput)
                    {
                    ChangeVerticalInputState(VERTICAL_INPUT_STATE.STATIONARY);
                    m_BrakeInput = 0f;
                    m_ForwardInput = 0f;
                    m_ReverseInput = 0f;
                    }
                }
            }
        */
    }
}