Week12,陳漢庭

import processing.serial.*;

Serial myPort;  // Create object from Serial class

int val;      // Data received from the serial port

void setup() {

size(640, 480, P3D);

myPort = new Serial(this, "COM3", 9600);

rectMode(CENTER);

}

float carX=640/2, carY=320/2;

float carDir=PI, carWheel=0;

void drawCar() {

pushMatrix();

translate(carX, carY);

rotateZ(carDir);

rect(0, 0, 187, 89);

drawWheel(127/2, 89/2, 1);

drawWheel(127/2, -89/2, 1);

drawWheel(-127/2, 89/2, 0);

drawWheel(-127/2, -89/2, 0);

if (keyPressed && keyCode==UP) {

  carX+= cos(carDir+carWheel); 

  carY+=sin(carDir+carWheel);

  carDir+=carWheel/50;

} else if (keyPressed && keyCode==DOWN) {

  carX-= cos(carDir+carWheel); 

  carY-=sin(carDir+carWheel);

  carDir-=carWheel/50;

} else if (keyPressed && keyCode==RIGHT) {

  carWheel+=0.01;

  if (carWheel > 0.3) carWheel=0.3;

} else if (keyPressed && keyCode==LEFT) {

    carWheel-=0.01;

    if (carWheel < -0.3) carWheel=-0.3;

}

popMatrix();

}

void drawWheel(float x, float y, int front) {

pushMatrix();

translate(x, y);

if (front==1) rotateZ(carWheel);

rect(0, 0, 40, 20);

popMatrix();

}

void draw() {

  while(myPort.available() > 0)

  {

    val = myPort.read();

    if(val==48)

    {

      carX+= cos(carDir+carWheel);

      carY+= sin(carDir+carWheel);

      carDir+=carWheel/50;

    }

    else if(val==49)

    {

      carX-= cos(carDir+carWheel);

      carY-= sin(carDir+carWheel);

      carDir+=carWheel/50;

    }

  }

  println(val);

  background(100);

  drawCar();

  rect(0+187/2, 0+89/2, 187, 89);

  rect(450+187/2, 0+89/2, 187, 89);

    

}