Introduction to Interactivity and Media Art

//---E4C-----Richard Ngo----- 11/29/04----------
//------FIREFLIES-------------------------------

int flies = 10;
Fly[] o = new Fly[flies];
 
float x = 0.0;

void setup() 
{ 
  ellipseMode(CENTER);
  rectMode(CENTER);
  smooth();
  size(300, 300);
  for (int i = 0; i < flies; i++) 
  {
    o[i] = new Fly(x,x,random(1),random(1), random(8,15),width/2,height/2);
  }  
} 
 
void draw() 
{ 
  float lightran = random (5,10);
  background(0); 
  noStroke();
  smooth();
  fill(181,215,216);
  ellipse(width/2,height/2, 30+lightran, 30+lightran);
  for (int i = 0; i < flies; i++) 
  {
    o[i].Angle();
    o[i].Location();
    o[i].Fireflies();
  }
 fill(255,20+(lightran * 10));
 ellipse(width/2,height/2, 90+lightran*3, 90+lightran *3);
 fill(149,184,236,20+lightran);
 ellipse(width/2,height/2, 70+lightran, 70+lightran);
 
} 


class Fly 
{
   float ang1;
   float ang2;
   float angSpeed1;
   float angSpeed2;
   float radius;
   float xloc;
   float yloc;
   float factor1;
   float factor2;
   boolean attract,buzz;
   int alpha1;
   int alpha2;
   int alpha3;
   
   //------------Constructor-----------
   Fly( float a1, float a2, float as1, float as2, float r, float f1, float f2) 
   {
     ang1 = a1;
     ang2 = a2;
     angSpeed1 = as1;
     angSpeed2 = as2;
     radius = r;
     xloc = 0;
     yloc = 0;
     factor1 = f1;
     factor2 = f2;
  }
   
   void Angle() 
   {
     //
     ang1 += angSpeed1;
     ang2 += angSpeed2;
     if (ang1 > 360) 
     { ang1 = 0; }
     if (ang2 > 360) 
     { ang2 = 0; }
   }
   
   void Location() 
   { 
     
     //------sin and cos movements--------------
     float temp1 = radians(ang1);
     float temp2 = radians(ang2);
     xloc = sin(temp1) * factor1;
     yloc = cos(temp2) * factor2;
     
     //-----attraction around the light--------
     if (attract == true)
     {
       xloc = sin(temp1) * factor1--;
       yloc = cos(temp2) * factor2--;
     }
     
     //------buzz position around light---------
     float randlightx = random(-25,20);
     float randlighty = random(-30,30);
     if (buzz == true)
     {
      xloc= 0+randlightx; 
      yloc= 0+randlighty;
     }
     
    }
   
     
   void Fireflies() 
   { 
     float randd1 = random(1,5);
     float randd2 = random(1,14);
     float randc = random(-1,2);
     //-------firefly glow----
     push();
     noStroke();
     fill(255,197,72,140);
     ellipse((width/2 + xloc),(height/2 + yloc),radius+randd2,radius+randd1);
     fill(255,100);
     ellipse((width/2 + xloc),(height/2 + yloc),radius+randd2+6,radius+randd1+6);
     pop();
     //------fire fly---------
     push();
     noStroke();
     fill(255,210,0,200);
     ellipse((width/2 + xloc),(height/2 + yloc),radius-randd1,radius-randd2);
     fill(63,48,17,170);
     ellipse((width/2 + xloc)+randc,(height/2 + yloc)+5,5,8);
     pop();
     
     //---Atrract to light----
     if((width/2 + xloc) > 100 && (width/2 + xloc) < 200 &&
         (height/2 + yloc)>100 && (height/2 + yloc)< 200)
      {attract = true;}
     //---Buzz around light---
     if((width/2 + xloc) > 130 && (width/2 + xloc) < 165 &&
         (height/2 + yloc)>130 && (height/2 + yloc)< 165)
      {buzz = true;}
     
   }
 }