上課內容

複習CPE

剝皮法

angerbird

PImage imgBird;

void setup(){

  size(500,400);

  imgBird=loadImage("bird.png");

  imageMode(CENTER);

}

void draw(){

  background(255);

  image(imgBird,mouseX,mouseY,100,100);

}

PImage imgBird;

void setup(){

  size(500,400);

  imgBird=loadImage("bird.png");

  imageMode(CENTER);

}

float birdX=100,birdY=300,oldX,oldY;

void draw(){

  background(255);

  image(imgBird,mouseX,mouseY,100,100);

  if(mousePressed)line(birdX,birdY,oldX,oldY);

  

}

void mousePressed(){

  oldX=birdX; oldY=birdY;

}

void mouseDragged(){

  birdX=mouseX;birdY=mouseY;

}

PImage imgBird;
void setup(){
  size(500,400);
  imgBird=loadImage("bird.png");
  imageMode(CENTER);
}
float birdX=100,birdY=300,oldX,oldY,vx=0,vy=0;
boolean bMoving=false;
void draw(){
  background(255);
  image(imgBird,birdX,birdY,100,100);
  if(bMoving)line(birdX,birdY,oldX,oldY);
  birdX+=vx;birdY+=vy;
  if(birdX>450 || birdX<50) vx=-vx;
  if(birdY>350 || birdY<50) vy=-vy;
 
}
void mouseReleased(){
  if(bMoving){
    bMoving=false;
  vx=(oldX-mouseX)/10; vy=(oldY-mouseY)/10;
  }
}
void mousePressed(){
  if(dist(mouseX,mouseY,birdX,birdY)<50){
    oldX=birdX;oldY=birdY;
  bMoving=true;
  }
}
void mouseDragged(){
  if(bMoving){
    birdX=mouseX;birdY=mouseY;
  }
}