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Ant_Art.pde
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Ant_Art.pde
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// Ant Painting
// Sunil Kumar Yadav
// Created using Processing
// Reference:Book - The Art of Artificial Evolution - A Handbook on Evolutionary Art and Music, Chapter 11 "Artificial Art made by Artificial Ants." Page 227-248,
// Authors: N.Monmarche', I. Mahnich, M.Slimane.
int dim = 400; // size of the applet window
int ant_num = int(random(4.5, 15.5)); // number of ants chosen between a range 5 to 15
boolean halt = false; // to pause by pressing any key
long count = 0; // iteration counter
//import processing.video.*;
//MovieMaker sky;
float[] tempx = new float[ant_num]; // To get the orientation
float[] tempy = new float[ant_num];
float[] tempxx = new float[ant_num];
float[] tempyy = new float[ant_num];
Ant[] ant = new Ant[ant_num]; // Universe of Ants // as an array of objects of Ant Class // Declared globally to be called by method draw.
//MAIN
void setup()
{
size(400,400,P3D);
smooth();
color back_color = color (0,0,0); // (Custom)
background (back_color); // setting background color
//sky = new MovieMaker(this, width, height, "antart.mov",300, MovieMaker.H263, MovieMaker.HIGH);
for (int i=0; i<ant_num; i++) // initialisation of ants
{
ant[i] = new Ant(0,0);
ant[i].x = int(random(0,dim));
ant[i].y = int(random(0,dim));
tempx[i] = ant[i].x;
tempy[i] = ant[i].y;
tempxx[i] = ant[i].x;
tempyy[i] = ant[i].y;
ant[i].col_laid = color (int(random(0,255)),int(random(0,255)),int(random(0,255))); // colors in paintings can be controlled varying the RGB ranges.(Custom)
ant[i].Do = random(0,1);
ant[i].Dr = 1 - ant[i].Do; //either ant is oblique moving or right angled moving // helps in deciding ant dynamics in absence of pheromones
}
for (int i=0; i<ant_num; i++)
{ // selection of color to be followed
if (i < ant_num - 1)
{
ant[i].col_look = ant[i+1].col_laid;
}
else
ant[ant_num-1].col_look = ant[0].col_laid;
}
}
// DRAW
void draw()
{
frameRate(60); // argument controls frame rate (subjected to hardware limitations)
for(int i=0;i<ant_num;i++)
{
stroke(ant[i].col_laid);
strokeWeight(2); // (Custom) Stroke Weights can be altered to give different art forms
point(ant[i].x,ant[i].y); // (Custom) e.g. ellipse(x,y,width,height) instead of point deposition
if (ant[i].x > dim || ant[i].y > dim || ant[i].x < 0 || ant[i].y < 0) // in case ant goes outside the window enters randomly at screen
{
ant[i].x = int(random(0,dim));
ant[i].y = int(random(0,dim));
}
// Luminance Comparison [Ref: B1]
float[] tempred = new float[8];
float[] tempgreen = new float[8];
float[] tempblue = new float[8];
float[] luminance = new float [8];
float[] delta_lum = new float [8];
int lum_crit = 40; // (Custom) can be varied to control pheromone following
tempred[0] = red(color(get(ant[i].x+1,ant[i].y+1)));
tempred[1] = red(color(get(ant[i].x+1,ant[i].y )));
tempred[2] = red(color(get(ant[i].x+1,ant[i].y-1)));
tempred[3] = red(color(get(ant[i].x,ant[i].y+1 )));
tempred[4] = red(color(get(ant[i].x,ant[i].y-1 )));
tempred[5] = red(color(get(ant[i].x-1,ant[i].y+1)));
tempred[6] = red(color(get(ant[i].x-1,ant[i].y )));
tempred[7] = red(color(get(ant[i].x-1,ant[i].y-1)));
tempgreen[0] = green(color(get(ant[i].x+1,ant[i].y+1)));
tempgreen[1] = green(color(get(ant[i].x+1,ant[i].y )));
tempgreen[2] = green(color(get(ant[i].x+1,ant[i].y-1)));
tempgreen[3] = green(color(get(ant[i].x,ant[i].y+1 )));
tempgreen[4] = green(color(get(ant[i].x,ant[i].y-1 )));
tempgreen[5] = green(color(get(ant[i].x-1,ant[i].y+1)));
tempgreen[6] = green(color(get(ant[i].x-1,ant[i].y )));
tempgreen[7] = green(color(get(ant[i].x-1,ant[i].y-1)));
tempblue[0] = blue(color(get(ant[i].x+1,ant[i].y+1)));
tempblue[1] = blue(color(get(ant[i].x+1,ant[i].y )));
tempblue[2] = blue(color(get(ant[i].x+1,ant[i].y-1)));
tempblue[3] = blue(color(get(ant[i].x,ant[i].y+1 )));
tempblue[4] = blue(color(get(ant[i].x,ant[i].y-1 )));
tempblue[5] = blue(color(get(ant[i].x-1,ant[i].y+1)));
tempblue[6] = blue(color(get(ant[i].x-1,ant[i].y )));
tempblue[7] = blue(color(get(ant[i].x-1,ant[i].y-1)));
for (int c = 0;c < 8; c++)
{
luminance[c] = 0.2426*tempred[c] + 0.7152*tempgreen[c] + 0.0722*tempblue[c];
delta_lum[c] = abs(luminance[c] - (0.2426*red(ant[i].col_look) + 0.7152*green(ant[i].col_look) + 0.0722*blue(ant[i].col_look) ));
}
if (delta_lum[0] < lum_crit )
{
ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1 ;
}
else if (delta_lum[1] < lum_crit)
{
ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;
}
else if (delta_lum[2] < lum_crit)
{
ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;
}
else if (delta_lum[3] < lum_crit)
{
ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;
}
else if (delta_lum[4] < lum_crit )
{
ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;
}
else if (delta_lum[5] < lum_crit )
{
ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1 ;
}
else if (delta_lum[6] < lum_crit)
{
ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;
}
else if (delta_lum[7] < lum_crit)
{
ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;
}
else // Ant Dynamics in absence of pheromone in neighbourhood based upon type of ant
{
if(ant[i].Do >= 0.5)
{
if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] == 0) ) // to initiate the movements in first instance
{
ant[i].x = ant[i].x + int(random(-2,2));
ant[i].y = ant[i].y + int(random(-2,2));
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y;}
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] == 0) ) // entered from East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y - 1;}
else if( move >= 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y - 1;}
else if( move >= 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y + 1;}
else if( move >= 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] == 0) ) // entered from West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y + 1;}
else if( move >= 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 15)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 15 && move < 20)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
}
}
else
{
if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] == 0) ) // to initiate the movements in first instance
{
ant[i].x = ant[i].x + int(random(-2,2));
ant[i].y = ant[i].y + int(random(-2,2));
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 35)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y;}
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] == 0) ) // entered from East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y - 1;}
else if( move >= 35)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] < 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North East
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 35)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y - 1;}
else if( move >= 35)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] == 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y ;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x - 1 ;
ant[i].y = ant[i].y + 1;}
else if( move >= 35)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] < 0) ) // entered from South West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y ;}
else if( move >= 35)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] == 0) ) // entered from West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y - 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x + 1 ;
ant[i].y = ant[i].y + 1;}
else if( move >= 35)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1 ;}
}
else if((tempx[i] - tempxx[i] > 0) && (tempy[i] - tempyy[i] > 0) ) // entered from North West
{
float move = random(40);
if(move < 10)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 10 && move < 20)
{ant[i].x = ant[i].x - 1;
ant[i].y = ant[i].y + 1;}
else if( move >= 20 && move < 30)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y - 1;}
else if( move >= 30 && move < 35)
{ant[i].x = ant[i].x ;
ant[i].y = ant[i].y + 1;}
else if( move >= 35)
{ant[i].x = ant[i].x + 1;
ant[i].y = ant[i].y ;}
}
}
}
tempxx[i] = tempx[i]; // Update for Orientation Arrays
tempyy[i] = tempy[i];
tempx[i] = ant[i].x;
tempy[i] = ant[i].y;
}
// sky.addFrame();
count += 1;
println(count);
}
// Press any key to stop the simulation
void keyPressed()
{
halt = !halt;
if (halt)
{
noLoop();
// sky.finish();
}
else
loop();
}
//CLASS ANT
class Ant {
int x,y; // initial position
color col_laid; // color laid down
color col_look; // color looking for
float Do, Dr; //type of ant, Do for oblique ants, Dr for right angled ants
Ant(int X, int Y) // constructor
{
x = X;
y = Y;
}
}