Modify a text file: $/guydog5.java

$/guydog5.java

//////// Guy, dog,  birds, bomb.   ////////
//////// Guy bounces off walls, shrinks when receding.
// bam:2920f //

//// GLOBAL DATA ////
String title="Guy and dog, plus birds. -- bam:2917d";

float horizon;

int guyX=100,guyY=300, guyDX=10, guyDY=5;
int dogX=100,dogY=200;

int birdX=100, birdY=100;  // Initial position of bird
int birdDX=10;
int sunX=100, sunY=100;  // Position of sun

float bombX=0, bombY=0, bombDY=0;              // No bomb until Y > 0.
float gravity=  0.5 * 9.81 / frameRate;

boolean eastbound=true;

int speed;

void setup() {
  size( 800, 600 );
  smooth();  
  //--  frameRate(5);
  speed=  (int) frameRate;
}

void draw() {
  //// Move and show everything //
  scene();
  guy();
  dog();
  bird();
  bomb();
}

void scene() {
  //// Sky, sun, grass.
  background( 150, 200, 255 );    // Sky

//// Move the sun.
  sunX = (sunX+1) % width;
  float  xw=  (float) sunX / width;
  sunY =  (int) ( 150 - 100*sin( PI*xw )   );
  
  float  arc=  (float) sin( PI * sunX / width );
  sunY =  (int) ( 150 - 100*arc );
  
  //--  text( "@@@ sun:  "+sunX+","+sunY, sunX, sunY+50 );
  //--  text( "@@@ xw:  "+xw, sunX, sunY+70 );
  float  sinyy=  sin( PI*( xw ) );
  //--  text( "@@@ sin(PI*x/w):  "+sinyy, sunX, sunY+90 );

//// Draw the sun.
  fill( 255, 255, 0 );        // Sun
  ellipse( sunX, sunY, 40, 40 );

//// Grass
  horizon=  height/3;
  fill( 100, 255, 100 );
  rectMode( CORNERS);
  rect( 0, horizon, width, height );
  
  fill( 0 );
  text( title  , 50, height-20 );
  text( "Click for bomb.", width-100, 50 );

}

void guy() {
  //// Guy moves dx,dy and bounces off walls.
  guyDX=  guyX>50 && guyX<width-50 ? guyDX : -guyDX;
  guyDY=  guyY>horizon && guyY<height-50 ? guyDY : -guyDY;
  guyX += guyDX;
  guyY += guyDY;
  //// Draw guy
  float shrink=  0.2 + (float) guyY / height;
  text( guyY, guyX+100, guyY);
  text( height, guyX+100, guyY+20);
  text( shrink, guyX+100, guyY+40);
  fill( 0,0,255 );        // Blue shirt
  rectMode( CENTER );
  rect( guyX, guyY, 60*shrink, 80*shrink );
  fill( 255, 200, 200 );        // Pink face
  ellipseMode( CENTER );
  ellipse( guyX, guyY-shrink*40-15, 30*shrink,30*shrink );
  // Hat
  fill(255,0,0);
  float top=  guyY-shrink*40-shrink*30;
  triangle( guyX,top-20, guyX-20,top, guyX+20,top );
  //// Eye.
  fill(0,0,255);
  if (eastbound) {
      ellipse( guyX+10, guyY-40-10, 5,5 );
  } else {
      ellipse( guyX-10, guyY-40-10, 5,5 );
  } 
}

void dog() {
  eastbound=   guyDX > 0;
  fill( 150, 50, 50 );
  rectMode( CORNER );
  float shrunk=  0.3 + (float) dogY / height;
  
  //// Dog chases guy.
  dogX += (guyX-dogX) / 20;
  dogY += (guyY+40-dogY) / 10;            // Dog chases bottom of guy
  
  // Draw dog
  fill( 150, 50, 50 );
  rectMode( CENTER );
  rect( dogX, dogY, shrunk*50, shrunk*20 );    // Dog body
  if ( guyX>dogX ){
    rect( dogX+30, dogY-10, 20, 10 );    // Dog head faces guy
  } else {
    rect( dogX-30, dogY-10, 20, 10 );    // 
  }

}

void bird() {
  //// Bird flies across screen.  (Press key to drop load.)
  birdX = birdX + birdDX;
  birdX = birdX % width;
  birdY = birdY + 10 - (int) random( 20 );
  fill( 200, 100, 200, 150 );
  triangle( birdX,birdY, birdX-50,birdY-15, birdX-50,birdY+15 );
  if (birdY >150){
    birdY = birdY - 5;
  }
  else if (birdY <-200){
    birdY= birdY - 10;
  }
}
void bomb() {
  //// Check if bomb is falling from bird.
  //// Bomb falls with gravity.  No bomb if zero.
  if (bombX > 0) {
    bombX=  birdX - 5;
    bombDY=  bombDY + gravity;
    bombY += bombDY;
    if (bombY > height) {
      //// Bomb vanishes at bottom
      bombY=0;
      background(255);
    }
    fill( 150, 0, 100 );
    ellipseMode( CENTER );
    triangle( bombX-12,bombY-15, bombX+12,bombY-15, bombX,bombY+15 );  // Fins
    fill( 70, 0, 70 );
    ellipse( bombX, bombY, 16, 30 ); 
    //// Did bomb hit guy?
    if ( abs(guyX-bombX)<30 && abs(guyY-bombY)<30 ) {
      flashGuy();
    }
  }
}
void flashGuy() {
  //// Make a flash around the guy.
    //// Paint red flash around guy.  (Also decrease score by 50.)
      fill( 256,0,0, 200 );
      ellipse( guyX, guyY, 200, 200 );
      strokeWeight( 6 );
      stroke( 256,0,0 );
      line( guyX,guyY, guyX+100,guyY );
      line( guyX,guyY, guyX+70,guyY+70 );
      line( guyX,guyY, guyX,guyY+100 );
      line( guyX,guyY, guyX-100,guyY );
      line( guyX,guyY, guyX-70,guyY-70 );
      line( guyX,guyY, guyX,guyY-100 );
      strokeWeight( 1 );
}

void mousePressed() {
  //// Drop bomb, when mouse is pressed.
  bombX = birdX;
  bombY = birdY;
  bombDY= 0;
}

void keyPressed() {
  if (key == 's') {
    speed -= 5;
    if (speed<1) speed= 30;
    frameRate( speed );
  }
}