WEEK13車子動起來啦

1.會動的車子


程式碼

void setup() {
size(640, 480, P3D);
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() {
background(100);
drawCar();
rect(0+187/2, 0+89/2, 187, 89);
rect(450+187/2, 0+89/2, 187, 89);
}

2.開啟2-4的範例

按下按鈕燈會亮!!!

3.開啟Serial Monitor

1是沒按按鈕0是按下按鈕

按下按鈕燈泡會亮

4.把程式移到arduino&processing裡面

用按鈕控制車子移動

processing程式碼

import processing.serial.*;

Serial myPort;  // Create object from Serial class

int val; 

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) {  // If data is available,

    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);

}

arduino程式碼2-4去改der

void setup(){

  //start serial connection

  Serial.begin(9600);

  //configure pin2 as an input and enable the internal pull-up resistor

  pinMode(2, INPUT_PULLUP);

  pinMode(3, INPUT_PULLUP);

  pinMode(13, OUTPUT); 

}

void loop(){

  //read the pushbutton value into a variable

  int sensorVal = digitalRead(2);

  int sensorVa3 = digitalRead(3);

  

  if (sensorVal == LOW) Serial.println('0');

  if (sensorVa3 == LOW) Serial.println('1');

  

}

5.20行做車子