Modify a text file: $/objects.pde

$/objects.pde

//// CST 112 practice:  array of Button objects
//// 7417:bam

String title=  "CST 112 practice:  array of Button objects.";
String news=  "(...)";
String notes=  "'=' key for statistics; +/-/1  to speedup/slowdown/restart";
String author=  "Prof.BAM";

String[] names=  { "Sleepy", "Sneezy", "Bashful", "Grumpy", "Dopey", "Doc", "Jumpy", "Dumpy", "Hither", "Yon" };

float top, bottom=400;
float speedup=1;

int numbuttons=6;
Button[] buttons=  new Button[numbuttons];
int left=0, shoot=1, right=2, go=3, reset=4, quit=5;

int numvarmits=10;
Varmit[] varmits=  new Varmit[numvarmits];

int maxtargets=10, numtargets=10;
Target[] targets=  new Target[maxtargets];

/*
Button left=  new Button( "LEFT", 100, 430 );
Button shoot=  new Button( "SHOOT", 200, 430 );
Button right=  new Button( "RIGHT", 300, 430 );
Button go=    new Button( "GO",    500, 430, 255,100,0 );
*/

void setup() {
  size(640, 480);
  top=height/6;
  bottom=height*5/6;
  //
  buttons[0]=  new Button( "LEFT", 100, 430 );
  buttons[1]=  new Button( "SHOOT", 200, 430 );
  buttons[2]=  new Button( "RIGHT", 300, 430 );
  buttons[3]=  new Button( "GO",    500, 430, 100,255,100 );

buttons[4]=  new Button( "RESET",   20, 50, 255,100,0 );
  buttons[5]=  new Button( "QUIT",    width-90, 50, 200,250,250 );
  
  reset();
  key=  '=';
  // Targets.
  float xt=100, yt=25;
  for (int j=0; j<numtargets; ++j) {
    targets[j] = new Target( xt, yt );
    xt += 50;
  }
  println( numtargets );
  
}
//// Reset:  random # of varmits & targets.
void reset() {
  numvarmits=  int( random(2,10) );
  for (int n=0; n<numvarmits; ++n) {
    varmits[n]=  new Varmit( names[n] );
  }
  numtargets=  int( random(1, maxtargets) );
}

//// NEXT FRAME ////
void draw() {
  scene();
  targets();
  //--  gun();
  varmits();
  buttons();
}

void scene() {
  //// Draw the range, grass, and messages. ////
  background( 255, 200, 255 );
  fill(100, 200, 100);
  rect( 0, height/6, width, height*2/3 ); 
  float top=height/6, bottom=height*5/6;

//// Waving grass ////
  stroke( 0, 150, 0 );
  strokeWeight(3);
  float x;
  float y=  height-10;
  for ( x=20; x<width-20; x+=15) { 
    float wave=  (mouseX-x) / 20;
    line (x+wave, y, x, y+20 );
  }
  strokeWeight(1);
  // TITLE & NEWS //
  fill(0);
  text( title, 10, 10 );
  text( notes, width/3, height-60 );
  text( news, 400, 70 );
  text( author, 30, height-10 );
  //
  if (key == '=') stats();
  if (key == '+') stats();
  if (key == '-') stats();
  if (key == '1') stats();
}

//// Statistics re varmits.
void stats()
{
  //// Statistics re varmits. ////
  // List the x & y positions.
  float x=20, y=120;
  float xtot=0, ytot=0, dxtot=0, dytot=0;
  text( "There are now "+ numvarmits +" varmits running around!", x, y );
  text( "There are "+ numtargets +" targets.", 400, y+15 );
  //
  y += 30;
  text( "#\n-", x, y );
  text( "X\n-", x+50, y );
  text( "Y\n-", x+100, y );
  text( "DX\n--", x+150, y );
  text( "DY\n--", x+200, y );
  y += 30;
  //
  for (int n=0; n<numvarmits; ++n) {
    text( n, x, y );
    text( varmits[n].name, x+30, y );
    text( int(varmits[n].x), x+100, y );
    text( int(varmits[n].y), x+150, y );
    text( speedup*varmits[n].dx, x+200, y );
    text( speedup*varmits[n].dy, x+250, y );
    //
    xtot += varmits[n].x;
    ytot += varmits[n].y;    
    y += 15;
  }
  y += 15;
  text( "SUM", x+50, y );
  text( int(xtot), x+100, y );
  text( int(ytot), x+150, y );
  y += 15;
  text( "AVG", x+50, y );
  text( int(xtot/numvarmits), x+100, y );
  text( int(ytot/numvarmits), x+150, y );
  y += 30;
  text( "speedup", x+200, y );
  text( speedup, x+250, y );
}

//// Targets
void targets() {
  for (int j=0; j<numtargets; ++j) {
    targets[j].show();
  }
}

// Varmits!
void varmits() {
  for(int i=0; i<numvarmits; ++i) {
    varmits[i].move();
    varmits[i].show();
  }  
}

// Buttons.
void buttons() {
  fill(255);      // Make buttons white.
  for (int j=0; j<numbuttons; ++j) {
    buttons[j].show();
  }
}

//// EVENTS:  mouse clicks, keys.
void mousePressed() 
{
  news="";
  String s=  " button was clicked";
  for (int j=0; j<numbuttons; ++j ) {
      if ( buttons[j].hit( mouseX, mouseY) ) { news=  buttons[j].name + s; }
  }
  //
  if ( buttons[reset].hit( mouseX, mouseY) ) { reset(); }
  if ( buttons[quit].hit( mouseX, mouseY) ) { exit(); }
  //
  if ( buttons[left].hit( mouseX, mouseY) ) speedup *= 1.0 / 1.1;
  if ( buttons[right].hit( mouseX, mouseY) ) speedup *= 1.1;      // 10% faster.
  if ( buttons[shoot].hit( mouseX, mouseY) ) { stats(); }
}
void keyPressed() 
{
  if (key == '+') speedup *= 1.1;      // 10% faster.
  if (key == '-') speedup *= 1.0 / 1.1;
  if (key == '1') speedup = 1;
}

//// OBJECTS ////
class Button
{
  float x, y;
  float w=80, h=30, round=10;
  String name;
  int r=255, g=255, b=255;
  // CONSTRUCTORS //
  Button( String s, float x, float y )
  {
    this.x=x;
    this.y=y;
    this.name=  s;
    r=g=b=255;    // Default color is white.
  }
  Button( String s, float x, float y, int r, int g, int b )
  {
    this.x=x;
    this.y=y;
    this.name=  s;
    //
    this.r=r;
    this.g=g;
    this.b=b;
  }
  // METHODS:  show() displays the button.
  void show()
  {
    fill( r,g,b );
    rect( x, y, w, h, round );
    fill(0);                    // Black text.
    text( name, x+10, y+20 );
  }
  // Return true if this button was clicked.
  boolean hit( float xx, float yy ) 
  {
    if (xx < x  ||  xx > x+w) return false;
    if (yy < y  ||  yy > y+h) return false;
    return true;
  }
}
    
class Varmit
{
  float x=100, y=200, dx=2, dy=1;
  float w=50, h=25;
  float r,g,b;
  int legs=6;
  String name="";
  
  //// CONSTRUCTOR(S) ////
  Varmit( String s ) {
    name=  s;
    //
    x=  random( 50, width-50 );
    y=  random( 100, height-100 );
    w=  random( 30, 90 );
    h=  random( 15, 40 );
    legs=  int( random(2,20) );
    dx=  random( 0.5, 3 );
    dy=  random( 0.5, 2 );
    //
    r=  random(100,250);
    g=  random(50,150);
    b=  random(0,100);

}

void move() {
      float margin=  10 + 10*speedup;
      if (x>width-margin || x<margin) dx = -dx; 
      x += dx*speedup;
      if (y>height-100-margin || y<100+margin) dy = -dy; 
      y += dy*speedup;
  }

void show() {
    fill( r,g,b );
    ellipse( x, y, w, h );
    // Head
    float headX=  +20;
    if (dx<0) headX=  -20;
    ellipse( x+headX, y-15, w/2, h/2 );
    fill (255);
    ellipse( x+1.5*headX, y-20, 8, 8 );
    fill (0,0,255);
    ellipse( x+1.7*headX, y-20, 4, 4 );
    float xleg=5+x-w/2, legspace=w/legs;
    float walk= 3;
    if ((frameCount/30) % 2 == 0)  {
      walk= -3;
    }
    //
    for (int j=0; j<legs; ++j) {
      line (xleg, y+10, xleg-walk, y+30 );
      xleg+=legspace; 
    }
    //
    fill(0);
    text( name, x+5-w/2, y );    
    //
  }

}

class Target {
  float x, y;
  Target( float x, float y ) {
    this.x=x;
    this.y=y;
  }
  void show() {
    fill(255);
    fill(255, 255, 0);
    ellipse(x, y, 30, 30);
    fill(0);
    ellipse(x, y, 15, 15);
  }
}