//var offset = 200;

//var scalar = 30; //数量

//var speed = 0.05;

        var angle = 0.0;

    var offset = 220;

    var scalar = 20; //数量

    var speed = 0.05;

        var boatrace = 1;

    var y1;

    var x = 0;

​

var serial; // variable to hold an instance of the serialport library

var fromSerial = 0; //variable to hold the data

​

//var Hue = 0;

var Lgt = 210;

var LgtDirection;

​

function preload() {  

  imgBoat = loadImage("IMG_7256.png");

}

​

function setup() {

  colorMode(HSB);

  createCanvas(600, 400);

  LgtDirection = 1;

  //link ardurino

  serial = new p5.SerialPort(); // make a new instance of  serialport librar    

    serial.on('list', printList); // callback function for serialport list event

    serial.on('data', serialEvent); // callback for new data coming in  

    serial.list(); // list the serial ports

    serial.open("/dev/cu.usbmodem1411"); // open a port

​

    }

​

function draw() {

  background(190, 40, Lgt);

  Lgt += LgtDirection;

  if (Lgt <= 20 || Lgt >= 250) {

    LgtDirection = -LgtDirection;

  }

  //Hue += 1;

  print(Lgt);

  var y1 = offset + sin(angle) * scalar;

  //x += boatrace;

  x= fromSerial;

    image(imgBoat,x, y1, 120, 100);

  angle += speed;

}

function printList(portList) {

    for (var i = 0; i < portList.length; i++) {

        // Display the list the console:

        println(i + " " + portList[i]);

    }

}

​

function serialEvent() {

    // this is called when data is recieved, data will then live in fromSerial  

    var stringFromSerial = serial.readLine();

  if (stringFromSerial.length>0){

    var trimmedString = trim(stringFromSerial);

    fromSerial= Number(trimmedString);

  }

​

}

​

/* Code for Ardurino

#include <Wire.h>

#include <Adafruit_Sensor.h>

#include <Adafruit_ADXL345_U.h>

​

// Assign a unique ID to this sensor at the same time 

Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

​

void displaySensorDetails(void)

{

  sensor_t sensor;

  accel.getSensor(&sensor);

//  Serial.println("------------------------------------");

//  Serial.print  ("Sensor:       "); Serial.println(sensor.name);

//  Serial.print  ("Driver Ver:   "); Serial.println(sensor.version);

//  Serial.print  ("Unique ID:    "); Serial.println(sensor.sensor_id);

//  Serial.print  ("Max Value:    "); Serial.print(sensor.max_value); Serial.println(" m/s^2");

//  Serial.print  ("Min Value:    "); Serial.print(sensor.min_value); Serial.println(" m/s^2");

//  Serial.print  ("Resolution:   "); Serial.print(sensor.resolution); Serial.println(" m/s^2");  

//  Serial.println("------------------------------------");

//  Serial.println("");

  delay(500);

}

​

void displayDataRate(void)

{

//  Serial.print  ("Data Rate:    "); 

  switch(accel.getDataRate())

  {

    case ADXL345_DATARATE_3200_HZ:

//      Serial.print  ("3200 "); 

      break;

    case ADXL345_DATARATE_1600_HZ:

//      Serial.print  ("1600 "); 

      break;

    case ADXL345_DATARATE_800_HZ:

//      Serial.print  ("800 "); 

      break;

    case ADXL345_DATARATE_400_HZ:

//      Serial.print  ("400 "); 

      break;

    case ADXL345_DATARATE_200_HZ:

//      Serial.print  ("200 "); 

      break;

    case ADXL345_DATARATE_100_HZ:

//      Serial.print  ("100 "); 

      break;

    case ADXL345_DATARATE_50_HZ:

//      Serial.print  ("50 "); 

      break;

    case ADXL345_DATARATE_25_HZ:

//      Serial.print  ("25 "); 

      break;

    case ADXL345_DATARATE_12_5_HZ:

//      Serial.print  ("12.5 "); 

      break;

    case ADXL345_DATARATE_6_25HZ:

//      Serial.print  ("6.25 "); 

      break;

    case ADXL345_DATARATE_3_13_HZ:

//      Serial.print  ("3.13 "); 

      break;

    case ADXL345_DATARATE_1_56_HZ:

//      Serial.print  ("1.56 "); 

      break;

    case ADXL345_DATARATE_0_78_HZ:

//      Serial.print  ("0.78 "); 

      break;

    case ADXL345_DATARATE_0_39_HZ:

//      Serial.print  ("0.39 "); 

      break;

    case ADXL345_DATARATE_0_20_HZ:

//      Serial.print  ("0.20 "); 

      break;

    case ADXL345_DATARATE_0_10_HZ:

//      Serial.print  ("0.10 "); 

      break;

    default:

//      Serial.print  ("???? "); 

      break;

  }  

//  Serial.println(" Hz");  

}

​

void displayRange(void)

{

//  Serial.print  ("Range:         +/- "); 

  switch(accel.getRange())

  {

    case ADXL345_RANGE_16_G:

//      Serial.print  ("16 "); 

      break;

    case ADXL345_RANGE_8_G:

//      Serial.print  ("8 "); 

      break;

    case ADXL345_RANGE_4_G:

//      Serial.print  ("4 "); 

      break;

    case ADXL345_RANGE_2_G:

//      Serial.print  ("2 "); 

      break;

    default:

//      Serial.print  ("?? "); 

      break;

  }  

//  Serial.println(" g");  

}

​

void setup(void) 

{

#ifndef ESP8266

  while (!Serial); // for Leonardo/Micro/Zero

#endif

  Serial.begin(9600);

//  Serial.println("Accelerometer Test"); Serial.println("");

  // Initialise the sensor 

  if(!accel.begin())

  {

    //There was a problem detecting the ADXL345 ... check your connections 

    Serial.println("Ooops, no ADXL345 detected ... Check your wiring!");

    while(1);

  }

​

  //Set the range to whatever is appropriate for your project 

//  accel.setRange(ADXL345_RANGE_16_G);

   accel.setRange(ADXL345_RANGE_8_G);

//   accel.setRange(ADXL345_RANGE_4_G);

  // accel.setRange(ADXL345_RANGE_2_G);

  //Display some basic information on this sensor 

  displaySensorDetails();

  //Display additional settings (outside the scope of sensor_t) 

  displayDataRate();

  displayRange();

//  Serial.println("");

}

​

void loop(void) 

{

 //Get a new sensor event  

  sensors_event_t event; 

  accel.getEvent(&event);

  // Display the results (acceleration is measured in m/s^2) 

  Serial.println(int(abs(event.acceleration.y)));//+event.acceleration.y+event.acceleration.z));

//  Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print("  ");

//  Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print("  ");

//  Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.print("  ");Serial.println("m/s^2 ");

  delay(100);

}

​

*/