JackStahl.pde

   1 /**
   2  * A Projection of sin wave in 3d space.
   3  * It sort of looks like an animal swiming around in water.
   4  * Angle sliders are sort of a work in progress that allow yo to change the crazy ways it moves around.
   5  * Hue slider allows you to control how different the colors are along the wave.
   6  *
   7  * This code copied heavily from Tim and Slee.
   8  */
   9 class Swim extends SCPattern {
  10
  11   // Projection stuff
  12   private final Projection projection;
  13   SawLFO rotation = new SawLFO(0, TWO_PI, 19000);
  14   SinLFO yPos = new SinLFO(-25, 25, 12323);
  15   final BasicParameter xAngle = new BasicParameter("XANG", 0.9);
  16   final BasicParameter yAngle = new BasicParameter("YANG", 0.3);
  17   final BasicParameter zAngle = new BasicParameter("ZANG", 0.3);
  18
  19   final BasicParameter hueScale = new BasicParameter("HUE", 0.3);
  20
  21   public Swim(GLucose glucose) {
  22     super(glucose);
  23     projection = new Projection(model);
  24
  25     addParameter(xAngle);
  26     addParameter(yAngle);
  27     addParameter(zAngle);
  28     addParameter(hueScale);
  29
  30     addModulator(rotation).trigger();
  31     addModulator(yPos).trigger();
  32
  33   }
  34
  35
  36   int beat = 0;
  37   float prevRamp = 0;
  38   void run(int deltaMs) {
  39
  40     // Sync to the beat
  41     float ramp = (float)lx.tempo.ramp();
  42     if (ramp < prevRamp) {
  43       beat = (beat + 1) % 4;
  44     }
  45     prevRamp = ramp;
  46     float phase = (beat+ramp) / 2.0 * 2 * PI;
  47
  48     float denominator = max(xAngle.getValuef() + yAngle.getValuef() + zAngle.getValuef(), 1);
  49
  50     projection.reset(model)
  51       // Swim around the world
  52       .rotate(rotation.getValuef(), xAngle.getValuef() / denominator, yAngle.getValuef() / denominator, zAngle.getValuef() / denominator)
  53         .translateCenter(model, 0, 50 + yPos.getValuef(), 0);
  54
  55     float model_height =  model.yMax - model.yMin;
  56     float model_width =  model.xMax - model.xMin;
  57     for (Coord p : projection) {
  58       float x_percentage = (p.x - model.xMin)/model_width;
  59
  60       // Multiply by 1.4 to shrink the size of the sin wave to be less than the height of the cubes.
  61       float y_in_range = 1.4 * (2*p.y - model.yMax - model.yMin) / model_height;
  62       float sin_x =  sin(phase + 2 * PI * x_percentage);
  63
  64       // Color fade near the top of the sin wave
  65       float v1 = sin_x > y_in_range  ? (100 + 100*(y_in_range - sin_x)) : 0;
  66
  67       float hue_color = (lx.getBaseHuef() + hueScale.getValuef() * (abs(p.x-model.xMax/2.)*.3 + abs(p.y-model.yMax/2)*.9 + abs(p.z - model.zMax/2.))) % 360;
  68       colors[p.index] = color(hue_color, 70, v1);
  69     }
  70   }
  71 }
  72
  73 /**
  74  * The idea here is to do another sin wave pattern, but with less rotation and more of a breathing / heartbeat affect with spheres above / below the wave.
  75  * TODO
  76  */
  77 class Breathe extends SCPattern {
  78
  79   final BasicParameter hueScale = new BasicParameter("HUE", 0.3);
  80
  81   class Sphere {
  82     float x, y, z;
  83     float radius;
  84     float hue;
  85   }
  86
  87   private final Sphere[] spheres;
  88   private final float centerX, centerY, centerZ;
  89
  90   public Breathe(GLucose glucose) {
  91     super(glucose);
  92
  93     addParameter(hueScale);
  94
  95     spheres = new Sphere[2];
  96     centerX = (model.xMax + model.xMin) / 2;
  97     centerY = (model.yMax + model.yMin) / 2;
  98     centerZ = (model.zMax + model.zMin) / 2;
  99
 100
 101     spheres[0] = new Sphere();
 102     spheres[0].x = model.xMin + 50;
 103     spheres[0].y = centerY;
 104     spheres[0].z = centerZ;
 105     spheres[0].radius = 25;
 106
 107     spheres[1] = new Sphere();
 108     spheres[1].x = model.xMax - 50;
 109     spheres[1].y = centerY;
 110     spheres[1].z = centerZ;
 111     spheres[1].radius = 25;
 112
 113   }
 114
 115
 116   int beat = 0;
 117   float prevRamp = 0;
 118   void run(int deltaMs) {
 119
 120     // Sync to the beat
 121     float ramp = (float)lx.tempo.ramp();
 122     if (ramp < prevRamp) {
 123       beat = (beat + 1) % 4;
 124     }
 125     prevRamp = ramp;
 126     float phase = (beat+ramp) / 2.0 * 2 * PI;
 127
 128     float model_height =  model.yMax - model.yMin;
 129     float model_width =  model.xMax - model.xMin;
 130     for (Point p : model.points) {
 131       float x_percentage = (p.x - model.xMin)/model_width;
 132
 133       // Multiply by 1.4 to shrink the size of the sin wave to be less than the height of the truck.
 134       float y_in_range = 1.4 * (2*p.y - model.yMax - model.yMin) / model_height;
 135       // xcxc add back phase
 136       float sin_x =  sin(phase + 2 * PI * x_percentage);
 137
 138       // Color fade near the top of the sin wave
 139       float v1 = sin_x > y_in_range  ? (100 + 100*(y_in_range - sin_x)) : 0;
 140
 141       float hue_color = (lx.getBaseHuef() + hueScale.getValuef() * (abs(p.x-model.xMax/2.)*.6 + abs(p.y-model.yMax/2)*.9 + abs(p.z - model.zMax/2.))) % 360;
 142       color c = color(hue_color, 70, v1);
 143
 144       // Now draw the spheres
 145       for (Sphere s : spheres) {
 146         float phase_x = (s.x - phase * model_width / ( 2 * PI)) % model_width;
 147         float d = sqrt(pow(p.x - phase_x, 2) + pow(p.y - s.y, 2) + pow(p.z - s.z, 2));
 148         float r = (s.radius);
 149         float value = max(0, 1 - max(0, d - r) / 10);
 150
 151         c = blendColor(c, color(hue_color + 180 % 360, 70, min(1, value) * 100), ADD);
 152       }
 153       colors[p.index] = c;
 154     }
 155   }
 156 }
 157
 158