#include <Keypad.h>
#define VERT_PIN A0
#define HORZ_PIN A1
#define SEL_PIN  7
#define ENCODER_CLK 8
#define ENCODER_DT  9
#define ENCODER_BTN 7
#define ENCODER_CLK2 10
#define ENCODER_DT2  11
// the loop routine  runs over and over again forever:
//编码器电平变量设定
int lastClk = HIGH;
int lastClk2 = HIGH;
//四个独立按钮变量设定
const int buttonPin1 = 3;
int oldValue1 = LOW; // default/idle value for pin 8 is low.
const int buttonPin2 = 4;
int oldValue2 = LOW; // default/idle value for pin 8 is low.
const int buttonPin3 = 5;
int oldValue3 = LOW; // default/idle value for pin 8 is low.
const int buttonPin4 = 6;
int oldValue4 = LOW; // default/idle value for pin 8 is low.
//按钮阵列变量设定
const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[COLS][ROWS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};
uint8_t colPins[COLS] = { 31, 33, 35, 37 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 23, 25, 27, 29 }; // Pins connected to R1, R2, R3, R4
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup(){
  //定义针脚，设定频率
  //Serial.begin(9600);// Communication started with 9600 baud
  Serial.begin(115200);
  pinMode(VERT_PIN, INPUT);
  pinMode(HORZ_PIN, INPUT);
  pinMode(SEL_PIN, INPUT_PULLUP);
  pinMode(ENCODER_CLK, INPUT);
  pinMode(ENCODER_DT, INPUT);
  pinMode(ENCODER_CLK2, INPUT);
  pinMode(ENCODER_DT2, INPUT);
  pinMode(ENCODER_BTN, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
  // Initialize the pin for reading the button.
  //Serial.println("Press the button.");
  pinMode(buttonPin1, INPUT);
  pinMode(buttonPin2, INPUT);
  pinMode(buttonPin3, INPUT);
  pinMode(buttonPin4, INPUT);
}
void loop() {
  //摇杆设定及执行
  bool selPressed = digitalRead(SEL_PIN) == LOW;
  // read the input on analog  pin 0:
  int sensorX = analogRead(A0);
  int sensorY = analogRead(A1);
  // read the input on analog pin 1:
  // print out the value you read:
  if(sensorX >= 700){
    Serial.println("3");
    delay(100);
  }
  else if(sensorX <= 400){
    Serial.println("1");
    delay(100);
  }
  else if(sensorY >= 700){
    Serial.println("4");
    delay(100);
  }
  else if(sensorY <= 400){
    Serial.println("2");
    delay(100);
  }
  // delay in between reads for stability
  //编码器 1 设定及执行
  int newClk = digitalRead(ENCODER_CLK);
  if (newClk != lastClk) {
    // There was a change on the CLK pin
    lastClk = newClk;
    int dtValue = digitalRead(ENCODER_DT);
    if (newClk == LOW && dtValue == HIGH) {
      Serial.println("Rotated clockwise ⏩");
    }
    if (newClk == LOW && dtValue == LOW) {
      Serial.println("Rotated counterclockwise ⏪");
    }
  }
  if (digitalRead(ENCODER_BTN) == LOW) {
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
  //编码器 2 设定及执行
  int newClk2 = digitalRead(ENCODER_CLK2);
  if (newClk2 != lastClk2) {
    // There was a change on the CLK pin
    lastClk2 = newClk2;
    int dtValue2 = digitalRead(ENCODER_DT2);
    if (newClk2 == LOW && dtValue2 == HIGH) {
      Serial.println("Rotated clockwise ⏩");
    }
    if (newClk2 == LOW && dtValue2 == LOW) {
      Serial.println("Rotated counterclockwise ⏪");
    }
  }
  if (digitalRead(ENCODER_BTN) == LOW) {
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }

  //四个按钮设定执行
  // Read the value of pin 3.
  int newValue1 = digitalRead(buttonPin1);
  // Check if the value was changed,
  // by comparing it with the previous value.
  if(newValue1 != oldValue1)
  {
    if(newValue1 == HIGH)
    {
      Serial.println("The button is pressed.");
    }
    else
    {
      Serial.println("The button is released.");
    }
    // Remember the value for the next time.
    oldValue1 = newValue1;
  }
  // Slow down the sketch.
  // Also for debouncing the button.
  //delay(100);
  // Read the value of pin 4.
  int newValue2 = digitalRead(buttonPin2);
  // Check if the value was changed,
  // by comparing it with the previous value.
  if(newValue2 != oldValue2)
  {
    if(newValue2 == HIGH)
    {
      Serial.println("The button is pressed.");
    }
    else
    {
      Serial.println("The button is released.");
    }
    // Remember the value for the next time.
    oldValue2 = newValue2;
  }
  // Slow down the sketch.
  // Also for debouncing the button.
  //delay(100);
  // Read the value of pin 5.
  int newValue3 = digitalRead(buttonPin3);
  // Check if the value was changed,
  // by comparing it with the previous value.
  if(newValue3 != oldValue3)
  {
    if(newValue3 == HIGH)
    {
      Serial.println("The button is pressed.");
    }
    else
    {
      Serial.println("The button is released.");
    }
    // Remember the value for the next time.
    oldValue3 = newValue3;
  }
  // Slow down the sketch.
  // Also for debouncing the button.
  //delay(100);
  // Read the value of pin 6.
  int newValue4 = digitalRead(buttonPin4);
  // Check if the value was changed,
  // by comparing it with the previous value.
  if(newValue4 != oldValue4)
  {
    if(newValue4 == HIGH)
    {
      Serial.println("The button is pressed.");
    }
    else
    {
      Serial.println("The button is released.");
    }
    // Remember the value for the next time.
    oldValue4 = newValue4;
  }
  // Slow down the sketch.
  // Also for debouncing the button.
  //delay(100);
  char key = keypad.getKey();
  if (key != NO_KEY) {
    Serial.println(key);
  }
}