const int dataPin595 = 5;   /* DS */
const int clockPin595 = 6;  /* SHCP */
const int latchPin595 = 7;  /* STCP */

const int dataPin165 = 10;  /* Q7 */
const int clockPin165 = 9;  /* CP */
const int latchPin165 = 8;  /* PL */
const int clockEnablePin165 = 11;  /* CE */

//const int randomButtonPin = 13; /* random buttom */

unsigned long times[] = {1000, 2000, 3000, 4000, 5000}; // Array of times in milliseconds
int numTimes = sizeof(times) / sizeof(times[0]);

unsigned long times2[] = {1000, 2000, 3000, 4000, 5000}; // Array of times in milliseconds
int numTimes2 = sizeof(times2) / sizeof(times2[0]);

unsigned long previousMillis = 0;
unsigned long previousMillis2 = 0;

unsigned long interval = 0;
unsigned long interval2 = 0;

// bool motorRunning = false;
bool motorRunning2 = false;

int currentDirection = 0;
int currentDirection2 = 0;

int previousDirection = 0;

unsigned long lastButtonPressTime = 0;  
  
// 定义按钮去抖时间（毫秒）  
const unsigned long debounceDelay = 50;  
  

bool flag=0;// if have motor down
int motordown=0;// motordown=0 motordown=1 motordown=2  

bool flag2=0;// if have motor2 down
int motor2down=0;// motor2down=0 motor2down=1 motor2down=2 


int pattern0 = 0b00000000;
int pattern1 = 0b10000000;
int pattern2 = 0b01000000;
int pattern3 = 0b00100000;
int pattern4 = 0b00010000;
int pattern5 = 0b00001000;
int pattern6 = 0b00000100;
int pattern7 = 0b00000010;
int pattern8 = 0b00000001;
// IN2Pin = QO 595
// IN1Pin = Q1 595
// relayPin1 = Q2 595
// relayPin2 = Q3 595
// relayPin3 = Q4 595
// relayPin4 = Q5 595

// stopLeftButton  = D3 165 11101111
// stopRightButton = D4 165 11110111
// stopUpButton    = D5 165 11111011
// stopDownButton  = D6 165 11111101
// randomButton    = D7 165 1111111
// D

unsigned long timeArray[4] = {5000, 7000, 8000, 10000}; // Array of 4 time durations (in milliseconds)
unsigned long timeArray2[4] = {1000, 2000, 3000, 4000}; // motor2 Array of 4 time durations
bool motorRunning = false;  // State of the motor
bool motor2Running = false;  // State of the motor2
unsigned long motorStartTime = 0; // Time when the motor was started
unsigned long motor2StartTime = 0; // Time when the motor2 was started
unsigned long motorRunDuration = 0; // Duration to run the motor
unsigned long motor2RunDuration = 0; // Duration to run the motor2
bool motorDirection = false;
bool motor2Direction = false;




void setup() {
  pinMode(dataPin595, OUTPUT);
  pinMode(clockPin595, OUTPUT);
  pinMode(latchPin595, OUTPUT);

   pinMode(dataPin165, INPUT);
  pinMode(clockPin165, OUTPUT);
  pinMode(latchPin165, OUTPUT);
  pinMode(clockEnablePin165, OUTPUT);

  //pinMode(randomButtonPin, INPUT); 
  randomSeed(analogRead(0)); // Seed random number generator
  Serial.begin(9600); 

  // Start with the motors off 
  digitalWrite(latchPin595, LOW); 
  shiftOut(dataPin595, clockPin595, LSBFIRST, 0);
   digitalWrite(latchPin595,
}



void loop() {
 

 digitalWrite(latchPin165, LOW);
  delayMicroseconds(5);
  digitalWrite(latchPin165, HIGH);
  delayMicroseconds(5);
  digitalWrite(clockPin165,HIGH);
  digitalWrite(clockEnablePin165, LOW);  
  byte incoming = shiftIn(dataPin165,clockPin165, MSBFIRST );
  digitalWrite(clockEnablePin165,HIGH);
  Serial.print("Pin States:\r\n");
  Serial.println(incoming, BIN);
  delay(300);
 
//unsigned long currentMillis = millis();
  // Check the current state of the button connected to the first pin (assuming active low)
  bool randombutton = (incoming == B1111111); // Invert logic if active low 
  // Check the current state of the stop button for forward direction (assuming active low, connected to D1) 
  bool stopForwardButtonState = (incoming == B11101111);
   // Check the current state of the stop button for reverse direction (assuming active low, connected to D2) 
   bool stopReverseButtonState = (incoming == B11110111);
   // check the stop forward button and the random button are pressed at the same time
   bool randomSstopForwardButtonState = (incoming == B1101111);
   // check the stop backward button and the random button are pressed at the same time
   bool randomSstopReverseButtonState = (incoming == B1110111);

  // Check if the button is pressed and motor is not running
  if (randombutton && !motorRunning)
   {
   
    motorRunning = true;
    motorStartTime = millis(); // Record the start time
    motorRunDuration = timeArray[random(0, 4)]; // Randomly choose a duration from the array
    motorDirection = random(0, 2); // Randomly choose the motor direction

    // Turn on the motor
    digitalWrite(latchPin595, LOW); 
    if (motorDirection) 
    {
       shiftOut(dataPin595, clockPin595, LSBFIRST, pattern3); // Pattern for reverse 
    } 
    else
     {
     shiftOut(dataPin595, clockPin595, LSBFIRST, pattern4); // Pattern for forward 
     } 
     digitalWrite(latchPin595, HIGH);
    
  }

  // check the stop forward button and the random button 
   if (randomSstopForwardButtonState && !motorRunning)
{ 
motorRunning = true; 
motorStartTime = millis(); // Record the new start time 
motorRunDuration = timeArray[random(0, 4)]; // Randomly choose a new duration from the array 
// Set motor direction to reverse 
// motorDirection = true; 
digitalWrite(latchPin595, LOW); 
shiftOut(dataPin595, clockPin595, LSBFIRST, pattern4); // Pattern for reverse 
digitalWrite(latchPin595, HIGH);
}

// check the stop backward button and the random button
  if (randomSstopReverseButtonState && !motorRunning) 
   {
     motorRunning = true; 
     motorStartTime = millis(); // Record the new start time 
     motorRunDuration = timeArray[random(0, 4)]; // Randomly choose a new duration from the array
      // Set motor direction to forward 
      // motorDirection = true; 
      digitalWrite(latchPin595, LOW);
       shiftOut(dataPin595, clockPin595, LSBFIRST, pattern3); // Pattern for forward 
       digitalWrite(latchPin595, HIGH);
}
 
 
  
  // Check if the motor should be turned off
  if (motorRunning && millis() - motorStartTime >= motorRunDuration) {
    motorRunning = false;

    // Turn off the motor
    digitalWrite(latchPin595, LOW);
    shiftOut(dataPin595, clockPin595, LSBFIRST, pattern0);
    digitalWrite(latchPin595, HIGH);
  }
  //*************************************************************************



}