week11

程式碼:
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;
}