Final Project - Beach Waves

// * This sketch only really works in Processing * //

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// Jason Cohen - Final Programming Project //

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float yoff = .01;        // 2nd dimension of perlin noise

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PImage bg;

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float noiseScale = 0.01; //change scale to get different outputs

float yShift = 0;

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color aquaColor;

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void setup() {

  size(750, 750);

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  bg = loadImage("Untitled-1.png");

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  aquaColor = color (#B5D6F2);

}

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void draw() {

  background(bg);

  noStroke();

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  fill(100, 200, 255); // light blue water

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  pushMatrix();

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  //translate(0, -100);

  beginShape(); 

  float xoff = 0.0002;       // Option #1: 2D Noise

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  //float xoff = yoff; // Option #2: 1D Noise

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  // Iterate over horizontal pixels

  for (float x = 0; x <= width; x = x + 15) {

    // Calculate a y value according to noise, map to 

    float y = map(noise(xoff, yoff), 0, 1, 200, 300); // Option #1: 2D Noise

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    // Set the vertex

    vertex(x, y); 

    // Increment x dimension for noise 

    xoff += 0.06;

  }

  // increment y dimension for noise

  yoff += 0.01;

  vertex(width, height);

  vertex(0, height);

  stroke(#B5D6F2);

  strokeWeight(15);

  endShape(CLOSE);

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  popMatrix();

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  yShift += .1;

  for (int x =0; x<width; x+=2) {

    for (int y = height-475; y<height; y+=2) {

      float n = noise(x*noiseScale, y*noiseScale + yShift, hour() * .0002);

      if ( n > .7) {

        fill (aquaColor);

        ellipse(x, y, 10, 10);

        noStroke();

      }

    }

  }

}