08160581_week13

ANGRY BIRD會飛ㄌ

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*0.95;

  if (birdY>350 || birdY<50) vy = -vy*0.95;

}

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;

  }

}