Week 11 Sean's note 60408027E

Idea：互動餐桌

PVector [] dish = new PVector[4];
float [] r = {0,0,0,0};
float [] angle = {0,0,0,0};
void setup(){
  size(640,480);
  dish[0]= new PVector(100,100);
  dish[1]= new PVector(540,100);
  dish[2]= new PVector(100,380);
  dish[3]= new PVector(540,380);
}

void draw(){
  background(255);
  ellipse(320,240, 400,400);//center
  ellipse(100,100, 100,100);
  ellipse(540,100, 100,100);
  ellipse(100,380, 100,100);
  ellipse(540,380, 100,100);
  for(int i=0; i<4; i++){
    ellipse(dish[i].x, dish[i].y, 90,90);
    line(dish[i].x, dish[i].y ,320,240);
  }
  if(keyPressed){
    for (int i=0; i<4; i++){
      angle[i] -= 0.1;
      dish[i].x = r[i] * cos(angle[i]) +320;
      dish[i].y = r[i] * sin(angle[i]) +240;
    }
  }
}
int nowDish = -1;
void mousePressed(){
    for(int i=0; i<4; i++){
    if ( dist(dish[i].x, dish[i].y, mouseX,mouseY) < 45 ){
      nowDish=i;
    }
  }
}
void mouseDragged(){
  if( nowDish!= -1){
    dish[nowDish].x=mouseX;
    dish[nowDish].y=mouseY;
    r[nowDish] = sqrt( (mouseX-320)*(mouseX-320) + (mouseY-240)*(mouseY-240));
    angle[nowDish] = atan2(mouseY-240, mouseX-320);
  }
}
void mouseReleased(){
  nowDish = -1;
}

練習停車

void setup() {

  size(640, 480, P3D);

  rectMode(CENTER);

}

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

float carDir=0, 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();

}

成功停車！

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);

}