Coral Reef

bush.pde
xxxxxxxxxx
 
//by jacquelyn london
//Made with code from avogatro
​
 
//global var and constant 
int fieldSize = 600; 
boolean stoped= false; 
float hypA = 10;//  hyperbel radius A 
float hypB = 15;//  hyperbel radius B 
 
boolean [][][] field; 
int bit24 = int(pow(2,24)); 
int bit16 = int (pow(2,16)); 
int bit8 = int(pow(2,8)); 
void setup(){ 
 
  size(fieldSize,fieldSize,P2D); 
  // change color mode: default RGB 
  colorMode(HSB,360,360,10); 
 
  field = new boolean[fieldSize][fieldSize][3]; 
  for (int b=0;b<fieldSize;b++){ 
    for (int a=0;a<fieldSize;a++){ 
      //first 2 field is status for tested or not 
      field[b][a][0]=false; 
      field[b][a][1]=false; 
      //chance to generate 2 branches at one time 
      //in hyperbel area , there is more chance  
      if ((b*b/hypA/hypA-a*a/hypB/hypB<5)||(random(200)>0.5)) //random=raduis of bush
        field[b][a][2]=false; 
      else 
        field[b][a][2]=true; 
    } 
  } 
  background(0); 
  fill(mouseX,mouseY,mouseX,frameCount%(fieldSize/3)); 
  //draw first point 
 ellipse(width/2,height/2,5,5); 
  field[width/2][height/2][0]=true; 
  field[width/2][height/2][1]=false; 
} 
void draw(){ 
  int new_point_counter=0; 
  //change color 
  stroke(mouseX,mouseY,mouseX,frameCount%(fieldSize/3)); 
  if (stoped == true){ 
    if (frameCount<60){ 
      mouseReleased(); 
    } 
  }else{ 
 
    //create data for draw 
    // for every drawed point search randomly 1 or 2 branches, which are neighbors of the origin.  
    for (int b=0;b<fieldSize;b++){ 
      for (int a=0;a<fieldSize;a++){ 
        if ((field[b][a][0]==true)&&(field[b][a][1]==false)){ 
 
          float angle = random(0,TWO_PI); 
          if ((b+round(sin(angle))<fieldSize)&& (a+round(cos(angle))<fieldSize)&&(b+round(sin(angle))>=0)&&((a+round(cos(angle)))>0)){ 
            if (field[b+round(sin(angle))][a+round(cos(angle))][0]==false){ 
              field[b+round(sin(angle))][a+round(cos(angle))][1] = true; 
              field[b][a][1]=true; 
              new_point_counter++; 
            } 
          } 
          //additional chance to create second branche 
          if (!field[b][a][2]){ 
            field[b][a][2]=true; 
            field[b][a][1]=true; 
            angle = random(0,TWO_PI); 
            if ((b+round(sin(angle))<fieldSize)&& (a+round(cos(angle))<fieldSize)&&(b+round(sin(angle))>=0)&&((a+round(cos(angle)))>0)){ 
              if (field[b+round(sin(angle))][a+round(cos(angle))][0]==false){ 
                field[b+round(sin(angle))][a+round(cos(angle))][1] = true; 
                field[b][a][1]=true; 
                new_point_counter++; 
              } 
            } 
          } 
 
        } 
      } 
    } 
    // draw new points 
    if (new_point_counter>0){ 
      for (int b=0;b<fieldSize;b++){ 
        for (int a=0;a<fieldSize;a++){ 
          if ((field[b][a][0]==false)&&(field[b][a][1]==true)){ 
            field[b][a][1]=false; 
            field[b][a][0]=true; 
            ellipse(b,a,5,5); 
          } 
        } 
      } 
    } 
    else{ 
      stoped=true; 
    } 
  } 
} 
 
void mouseReleased() { 
   
  for (int b=0;b<fieldSize;b++){ 
    for (int a=0;a<fieldSize;a++){ 
      //first 2 field is status for tested or not 
      field[b][a][0]=false; 
      field[b][a][1]=false; 
      //chance to generate 2 branches at one time 
      //in hyperbel area , there is more chance  
      if ((b*b/hypA/hypA-a*a/hypB/hypB<5)||(random(1)>0.5)) 
        field[b][a][2]=false; 
      else 
        field[b][a][2]=true; 
    } 
  } 
  background(0); 
  stroke(0); 
  fill(0); 
  rect(0,0,fieldSize,fieldSize); 
 
 
 
 
 
  stroke(255-frameCount%100,frameCount%100); 
  //draw first point 
  ellipse(width/2,height/2,5,5); 
  field[width/2][height/2][0]=true; 
  field[width/2][height/2][1]=false; 
  stoped =false; 
  frameCount=0; 
} 
 
​
Archived Sketch
