Modify a text file: $/p-modularize.pde

$/p-modularize.pde

// bam - modularize:  Zoog, 3 birds, enemy.

float birdX=0, birdY=0;

void setup() {
  size(300,400);
  rectMode(CORNERS);
  ellipseMode(CORNERS);
  //-- frameRate(5);
}

void draw() {
  // Draw everything.
  background(255);
  text( "Click mouse to make birds fly -- then try to avoid them!", 10,10 );
  float x=  mouseX;
  float y=  mouseY;
  drawZoog(x,y);

// Birds fly diagonally down.
  if (birdX < 400) {
    birdX +=2;
    birdY +=1;    // Fly diagonally down.
    drawBirds(5, birdX, birdY);
  }

// Check if bird hits Zoog.
  if (  isOver(x,y, birdX,birdY)  ) {
    text( "OUCH!", 100, 100 );
  }
}

void mousePressed() {
  // Create 5 birds.
  birdX= mouseX-100;
  birdY=mouseY-100;
}

void drawZoog( float x, float y) {
  // Square and circle.
  fill(0,255,0);
  rect( x, y, x+100, y+100);
  fill(255,0,0);
  ellipse( x+30, y-5, x+65, y-25 );
}

void drawBirds( int howMany, float x, float y) {
  // STUB - birds
  // text( "bird stub was called ", 10, 10);
  
  int n;
  
  for( n=0; n < howMany; n++) {
    bird(x,y);
    x += 20;
    y += 10;
  }
  
  /*
  bird(x,y);
  bird(x+50,y+50);
  bird(x+100,y+100);
  */
  
}

void bird(float x, float y) {
  // Draw one bird.
  fill(127,127,255);
  triangle(x,y, x+30,y, x,y+10);
}

boolean isOver( float x, float y,  float bx, float by) {
  // Return true if bx,by is over x,y.
  boolean q;
  q=  (abs(x-bx)<100) && (abs(y-by)<100);
  return q;
}