ライン・ブラインド

/**
* line blind
*
* @author aa_debdeb
* @date 2016/03/16
*/

float offset;
float[] values;
float offsetNoise;
float valueNoise1, valueNoise2;

void setup(){
  size(500, 500);
  frameRate(20);
    
  offset = 0;
  values = new float[51];
  for(int i = 0; i < 51; i++){
    values[i] = 0.0;
  }

  offsetNoise = random(100);
  valueNoise1 = random(100);
  valueNoise2 = random(100);
  
  stroke(0, 20);
  strokeWeight(1);
  noFill();
  
  background(255);
}

void draw(){

  beginShape();
  curveVertex(0, offset + values[0]);
  for(int i = 0; i < 51; i++){
    curveVertex(i * 10, offset + values[i]);
  }
  curveVertex(width, offset + values[50]);
  endShape();
  
  offset += map(noise(offsetNoise + frameCount * 0.1), 0, 1, 1, 5);
  if(offset > height){
    offset = 0;
  }
  
  for(int i = 0; i < 51; i++){
    values[i] += map(noise(valueNoise1 + frameCount * 0.1, valueNoise2 + (i * 10) * 0.04), 0, 1, -1, 1);
  }
  
}