mandala movil - OpenProcessing

mandala_movil
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//Lescano Carlos Daniel 2015
//Use the mouse buttons and numbers 
int base = 8;
void setup() {
  size(900, 700);
  background(0, 100, 100);
  smooth();
  text("Use the mouse buttons and numbers", 25, 25);
  text("Utiliza los botones del mouse y los números", 50, 50);
  text("Play, stop: press 0 ", 75, 75);
}
int contu = 1;
boolean achicar = true;
​
​
void draw() {
​
  if (mousePressed == true) {
    basevariable();
    if (mouseButton == RIGHT) {
      rotate(PI/base);
      translate(-width/2, -height/2);
      basevariable();
    }
  } else {
​
    stroke(255, random(255), random(255),70);
    fill(random(255), 255, random(255),70);
  }
    if((contu == 5)&&(achicar == true))achicareluniverso();
    
    contu++;
}
​
​
void basevariable() {
​
  translate(width/2, height/2);
  for (int i = 0; i < base; i += 1) {
    rotate(TWO_PI/base);
    lineavariable(mouseX-(width/2), mouseY-(height/2), pmouseX-(width/2), pmouseY-(height/2));
    lineavariable(((width/2) - mouseX), mouseY-(height/2), ((width/2) - pmouseX), pmouseY-(height/2));
  }
}
​
void lineavariable(int x, int y, int px, int py) {
  float speed = abs(x-px) + abs(y-py);
  ellipse(x, y, speed, speed);
//  star(x,y,int(speed/2),int(speed), int(random(8)));
  strokeWeight(speed/4);
}
​
void keyPressed() {
  if        (key == '9') {        
    base = 9;
  } else if (key == '8') {        
    base = 8;
  } else if (key == '7') {        
    base = 7;
  } else if (key == '6') {        
    base = 6;
  } else if (key == '5') {        
    base = 5;
  } else if (key == '4') {        
    base = 4;
  } else if (key == '3') {        
    base = 3;
  } else if (key == '2') {        
    base = 2;
  } else if (key == '1') {        
    base = 1;
  } else if (key == '0') {        
    achicar = !achicar;
    contu = 1;
  }
}
void achicareluniverso() {
  loadPixels();
  for (int y = height/2; y < height; y++) {
    for (int x = 0; x < width; x++) {
      int loc = x + y*width;
      int loc2= x + y*width;
​
      if ((x != 1) && (y != 1) && ( x != width ) && (y != height)) { 
          if (width/2 >= x) { 
          if (height/2 >= y) {
​
          } else {   
            loc2 = ( x +1)+ ((y-1)*width);
          }
        } else {
          if (height/2 >= y) {
   
          } else {   
            loc2 = ( x-1 )+ ((y-1)*width);
          }
        }
      }
  pixels[loc2] = pixels[loc]    ;
    }
  }
  
    for ( int y = (height/2)+1; y > 1;  y--) {
    for ( int x = width;  x > 1 ; x--) {
      int loc = x + y*width;
      int loc2= x + y*width;
​
      if ((x != 1) && (y != 1) && ( x != width ) && (y != height)) { 
          if (width/2 >= x) { 
          if (height/2 >= y) {
              loc2 = ( x+1 )+ ((y+1)*width);
          } else {   
           loc2 = ( x +1)+ ((y-1)*width);
          }
        } else {
          if (height/2 >= y) {
              loc2 = ( x -1)+ ((y+1)*width);
          } else {   
           loc2 = ( x-1 )+ ((y-1)*width);
          }
        }
      }
  pixels[loc2] = pixels[loc]    ;
​
    }
  }
  
 
  updatePixels();
  contu = 0;
}
void star(float x, float y, float radius1, float radius2, int npoints) {
  float angle = TWO_PI / npoints;
  float halfAngle = angle/2.0;
  beginShape();
  for (float a = 0; a < TWO_PI; a += angle) {
    float sx = x + cos(a) * radius2;
    float sy = y + sin(a) * radius2;
    vertex(sx, sy);
    sx = x + cos(a+halfAngle) * radius1;
    sy = y + sin(a+halfAngle) * radius1;
    vertex(sx, sy);
  }
  endShape(CLOSE);
}
​
​