Modify a text file: $/project2-4.java

$/project2-4.java

//// Project 2.4 -- Change hero to follow MOUSE.  
// Random reset for hero & monster.
// Also add cute dog & silly puppy.

String title="G O L D     R U S H  (2.4)";
String subtitle="(click to move gold)";
String author=  "Bruce Alan Martin";
//// NOTE:  String class name is spelled with a CAPITAL "S".

float heroX, heroY;            // Position of hero, etc.
float heroheadX, heroheadY;
float goldX, goldY;
float birdX=50, birdY=50;
float monsterX=200,monsterY=100;
float dogX,dogY, puppyX,puppyY;

float horizon;
int score=0;

void setup() {
  //// Initialization ////
  size( 640, 480 );
  horizon=  height/4;
  heroX=  width/2;        // Start hero in center of screen
  heroY=  height/2;
  goldX=  width-50;       // Gold at lower-right corner.
  goldY=  height-50;
}
void draw() {
  // Next frame.
  scene();
  action();
}
void action() {
  // Move & draw all creatures, etc.
  gold();
  bird();
  monster();
  hero();
  dog();
  puppy();
}

void mousePressed() {
  //// Event handler for mouse click.
  goldX=  mouseX;
  goldY=  mouseY;
  background( 255, 255, 0 );    // Flash!
  score=  score + 1;
  // Random reset for monster 7 hero.
  monsterX=  20;
  monsterY=  random( horizon, height-50);
  heroX=  width-random(200);
  heroY=  random( horizon, height-50);
}

void gold() {
  //// Draw gold.
  fill( 255, 150, random(150) );
  stroke( 200+random(50), random(150), random(100) );
  strokeWeight( random(3) );
  ellipse( goldX, goldY, 20, 20 );
  // Reset.
  stroke(0);
  strokeWeight( 1 );
  fill( 255 );
}

void hero() {
  // move & draw hero 
  // CHANGED:  Move toward MOUSE.
  //--  heroX=  heroX  +  (goldX-heroX)/60;
  //--  heroY=  heroY  +  (goldY-heroY)/60;
  heroX=  heroX  +  (mouseX-heroX)/60;
  heroY=  heroY  +  (mouseY-heroY)/60;

// Draw hero
  fill( 255, 255, 0 );
  rectMode( CENTER );
  rect( heroX, heroY, 50, 80 );
  // Head.
  heroheadX=  heroX;
  heroheadY=  heroY - 80/2 -36/2;
  fill( 255, 200, 150 );
  ellipse( heroheadX, heroheadY, 30, 36 ); 
  // + eyes
  eyes();
}

void eyes() {
  // Draw eyes //
  fill( 255, 255, 255 );
  ellipse( heroheadX-10, heroheadY, 10, 10 );   // Left
  ellipse( heroheadX+10, heroheadY, 10, 10 );   // Right
  fill( 0, 0, 255 );
  ellipse( heroheadX-10, heroheadY, 5, 5 );   // Left pupil
  ellipse( heroheadX+10, heroheadY, 5, 5 );   // Right
}

void bird() {
  // Move & draw bird.
  birdX=  birdX + 3;
  birdX=  birdX % width;
  birdY=  birdY + 2 - random(1);
  birdY=  birdY % horizon;
  fill(0, 0, 255);
  triangle( birdX, birdY, birdX-40, birdY-20, birdX-40, birdY+20 );
}

void monster() {
  //// Draw & move ugly monster
  monsterX=  monsterX + (heroX-monsterX)/120;
  monsterY=  monsterY + (heroY-monsterY)/150;
  fill( 100, 50, 100 );
  rectMode(CENTER);
  rect( monsterX, monsterY, 80, 120 );
  rect( monsterX, monsterY-60, 120, 30 );  // shoulders
  rect( monsterX-30, monsterY+80, 20, 60 );    // legs
  rect( monsterX+30, monsterY+80, 20, 60 );
  fill( 50, 100, 50 );
  rect( monsterX, monsterY-80, 50, 50 );  // head
}

void dog() {
  //// Move & draw cute dog -- chases hero.
  dogX=  dogX + (heroX-dogX)/40;
  dogY=  dogY + (heroY-dogY)/40;
  fill( 80, 60, 0 );
  rect(dogX, dogY, 40, 20);
  rect(dogX+15, dogY-10, 20, 15);  //head
  rect(dogX-25, dogY-10, 12, 5);  //tail
}
void puppy() {
  //// Silly puppy follows dog
  puppyX=  puppyX + (dogX-puppyX)/30 -2 +random(4);    // (faster than dog)
  puppyY=  puppyY + (dogY-puppyY)/30 -2 +random(4);
  fill( 170, 150, 50 );
  rect(puppyX, puppyY, 20, 10);
  rect(puppyX+15, puppyY-10, 10, 8);  //head
  rect(puppyX-8, puppyY-8+random(2)-1, 8, 4);  //tail
}

//////// SCENE ////////

void scene() {
  //// sky, etc.
  background( 150, 200, 255 );     // sky
  fill( 100, 255, 100 );          // grass
  rectMode( CORNERS );
  rect( 0, horizon, width, height );
  // Messages.
  notes();
  // barn.
  fill( 255, 50, 50 );
  float barnX=width*2/3;
  float barnY=  horizon-25;
  rectMode(CENTER);
  rect( barnX, barnY, 40, 50 );    // barn 
  triangle( barnX-20,barnY-25, barnX+20,barnY-25, barnX,barnY-45 );  
  //++++ add sun, clouds, etc.
}
void notes() {
  //// Messages on screen
  fill(0);
  text( title, 200, 30 ); 
  text( subtitle, 200, 50 );
  text( score, width-100, 60 ); 
  text( author, 20, height-20 ); 
}