JR.pde

   1 color BLACK = #000000;
   2
   3 class Gimbal extends SCPattern {
   4
   5   private final boolean DEBUG_MANUAL_ABG = false;
   6   private final int MAXIMUM_BEATS_PER_REVOLUTION = 100;
   7
   8   private boolean first_run = true;
   9   private final Projection projection;
  10   private final BasicParameter beatsPerRevolutionParam = new BasicParameter("SLOW", 20./MAXIMUM_BEATS_PER_REVOLUTION);
  11   private final BasicParameter hueDeltaParam = new BasicParameter("HUED", 60./360);
  12   private final BasicParameter fadeFromCoreParam = new BasicParameter("FADE", 1);
  13   private final BasicParameter girthParam = new BasicParameter("GRTH", .18);
  14   private final BasicParameter ringExtendParam = new BasicParameter("XTND", 1);
  15   private final BasicParameter relativeSpeedParam = new BasicParameter("RLSP", .83);
  16   private final BasicParameter sizeParam = new BasicParameter("SIZE", .9);
  17
  18   private final BasicParameter aP = new BasicParameter("a", 0);
  19   private final BasicParameter bP = new BasicParameter("b", 0);
  20   private final BasicParameter gP = new BasicParameter("g", 0);
  21
  22   Gimbal(GLucose glucose) {
  23     super(glucose);
  24     projection = new Projection(model);
  25     addParameter(beatsPerRevolutionParam);
  26     addParameter(hueDeltaParam);
  27     addParameter(fadeFromCoreParam);
  28     addParameter(girthParam);
  29     addParameter(ringExtendParam);
  30     addParameter(relativeSpeedParam);
  31     addParameter(sizeParam);
  32
  33     if (DEBUG_MANUAL_ABG) {
  34       addParameter(aP);
  35       addParameter(bP);
  36       addParameter(gP);
  37     }
  38   }
  39
  40   float a = 0, b = 0, g = 0;
  41
  42   public void run(double deltaMs) {
  43
  44     if (DEBUG_MANUAL_ABG) {
  45       a = aP.getValuef() * (2 * PI);
  46       b = bP.getValuef() * (2 * PI);
  47       g = gP.getValuef() * (2 * PI);
  48     } else {
  49       float relativeSpeed = relativeSpeedParam.getValuef();
  50       float time = millis() / 1000.f;
  51
  52       int beatsPerRevolution = (int) (beatsPerRevolutionParam.getValuef() * MAXIMUM_BEATS_PER_REVOLUTION) + 1;
  53       float radiansPerMs = 2 * PI             // radians / revolution
  54                          / beatsPerRevolution // beats / revolution
  55                          * lx.tempo.bpmf()    // BPM beats / min
  56                          / 60                 // sec / min
  57                          / 1000;              // ms / sec
  58
  59       a += deltaMs * radiansPerMs * pow(relativeSpeed, 0);
  60       b += deltaMs * radiansPerMs * pow(relativeSpeed, 1);
  61       g += deltaMs * radiansPerMs * pow(relativeSpeed, 2);
  62       a %= 2 * PI;
  63       b %= 2 * PI;
  64       g %= 2 * PI;
  65     }
  66
  67     float hue = lx.getBaseHuef();
  68     float hue_delta = hueDeltaParam.getValuef() * 360;
  69
  70     float radius1 = model.xMax / 2 * sizeParam.getValuef();
  71     float radius2 = ((model.xMax + model.yMax) / 2) / 2 * sizeParam.getValuef();
  72     float radius3 = model.yMax / 2 * sizeParam.getValuef();
  73     float girth = model.xMax * girthParam.getValuef();
  74     Ring ring1 = new Ring((hue + hue_delta * 0) % 360, radius1, girth);
  75     Ring ring2 = new Ring((hue + hue_delta * 1) % 360, radius2, girth);
  76     Ring ring3 = new Ring((hue + hue_delta * 2) % 360, radius3, girth);
  77
  78     projection.reset(model)
  79       // Translate so the center of the car is the origin
  80       .translateCenter(model, 0, 0, 0);
  81
  82     for (Coord c : projection) {
  83       //if (first_run) println(c.x + "," + c.y + "," + c.z);
  84
  85       rotate3d(c, a, 0, 0);
  86       rotate3d(c, PI/4, PI/4, PI/4);
  87       color color1 = ring1.colorFor(c);
  88
  89       rotate3d(c, 0, b, 0);
  90       color color2 = ring2.colorFor(c);
  91
  92       rotate3d(c, 0, 0, g);
  93       color color3 = ring3.colorFor(c);
  94
  95       colors[c.index] = specialBlend(color1, color2, color3);
  96     }
  97
  98     first_run = false;
  99   }
 100
 101   class Ring {
 102
 103     float hue;
 104     float radius, girth;
 105
 106     public Ring(float hue, float radius, float girth) {
 107       this.hue = hue;
 108       this.radius = radius;
 109       this.girth = girth;
 110     }
 111
 112     public color colorFor(Coord c) {
 113       float theta = atan2(c.y, c.x);
 114       float nearest_circle_x = cos(theta) * radius;
 115       float nearest_circle_y = sin(theta) * radius;
 116       float nearest_circle_z = 0;
 117
 118       float distance_to_circle
 119           = sqrt(pow(nearest_circle_x - c.x, 2)
 120                + pow(nearest_circle_y - c.y, 2)
 121                + pow(nearest_circle_z - c.z * ringExtendParam.getValuef(), 2));
 122
 123       float xy_distance = sqrt(c.x*c.x + c.y*c.y);
 124       return lx.hsb(this.hue, 100, (1 - distance_to_circle / girth * fadeFromCoreParam.getValuef()) * 100);
 125     }
 126
 127   }
 128
 129 }
 130
 131
 132
 133
 134
 135
 136 class Zebra extends SCPattern {
 137
 138   private final Projection projection;
 139   SinLFO angleM = new SinLFO(0, PI * 2, 30000);
 140
 141 /*
 142   SinLFO x, y, z, dx, dy, dz;
 143   float cRad;
 144   _P size;
 145   */
 146
 147   Zebra(GLucose glucose) {
 148     super(glucose);
 149     projection = new Projection(model);
 150
 151     addModulator(angleM).trigger();
 152   }
 153
 154   color colorFor(Coord c) {
 155     float hue = lx.getBaseHuef();
 156
 157
 158
 159
 160 /* SLIDE ALONG
 161     c.x = c.x + millis() / 100.f;
 162     */
 163
 164
 165
 166     int stripe_count = 12;
 167     float stripe_width = model.xMax / (float)stripe_count;
 168     if (Math.floor((c.x) / stripe_width) % 2 == 0) {
 169       return lx.hsb(hue, 100, 100);
 170     } else {
 171       return lx.hsb((hue + 90) % 360, 100, 100);
 172     }
 173
 174
 175     /* OCTANTS
 176
 177     if ((isPositiveBit(c.x) + isPositiveBit(c.y) + isPositiveBit(c.z)) % 2 == 0) {
 178       return lx.hsb(lx.getBaseHuef(), 100, 100);
 179     } else {
 180       return lx.hsb(0, 0, 0);
 181     }
 182     */
 183   }
 184
 185   int isPositiveBit(float f) {
 186     return f > 0 ? 1 : 0;
 187   }
 188
 189   public void run(double deltaMs) {
 190     float a = (millis() / 1000.f) % (2 * PI);
 191     float b = (millis() / 1200.f) % (2 * PI);
 192     float g = (millis() / 1600.f) % (2 * PI);
 193
 194     projection.reset(model)
 195       // Translate so the center of the car is the origin
 196       .translateCenter(model, 0, 0, 0);
 197
 198     for (Coord c : projection) {
 199 //      rotate3d(c, a, b, g);
 200       colors[c.index] = colorFor(c);
 201     }
 202
 203     first_run = false;
 204   }
 205
 206
 207   // Utility!
 208   boolean first_run = true;
 209   private void log(String s) {
 210     if (first_run) {
 211       println(s);
 212     }
 213   }
 214
 215
 216 }
 217
 218 void rotate3d(Coord c, float a /* roll */, float b /* pitch */, float g /* yaw */) {
 219   float cosa = cos(a);
 220   float cosb = cos(b);
 221   float cosg = cos(g);
 222   float sina = sin(a);
 223   float sinb = sin(b);
 224   float sing = sin(g);
 225
 226   float a1 = cosa*cosb;
 227   float a2 = cosa*sinb*sing - sina*cosg;
 228   float a3 = cosa*sinb*cosg + sina*sing;
 229   float b1 = sina*cosb;
 230   float b2 = sina*sinb*sing + cosa*cosg;
 231   float b3 = sina*sinb*cosg - cosa*sing;
 232   float c1 = -sinb;
 233   float c2 = cosb*sing;
 234   float c3 = cosb*cosg;
 235
 236   float[] cArray = { c.x, c.y, c.z };
 237   c.x = dotProduct(new float[] {a1, a2, a3}, cArray);
 238   c.y = dotProduct(new float[] {b1, b2, b3}, cArray);
 239   c.z = dotProduct(new float[] {c1, c2, c3}, cArray);
 240 }
 241
 242 float dotProduct(float[] a, float[] b) {
 243   float ret = 0;
 244   for (int i = 0 ; i < a.length; ++i) {
 245     ret += a[i] * b[i];
 246   }
 247   return ret;
 248 }
 249
 250 color specialBlend(color c1, color c2, color c3) {
 251   float h1 = hue(c1);
 252   float h2 = hue(c2);
 253   float h3 = hue(c3);
 254
 255   // force h1 < h2 < h3
 256   while (h2 < h1) {
 257     h2 += 360;
 258   }
 259   while (h3 < h2) {
 260     h3 += 360;
 261   }
 262
 263   float s1 = saturation(c1);
 264   float s2 = saturation(c2);
 265   float s3 = saturation(c3);
 266
 267   float b1 = brightness(c1);
 268   float b2 = brightness(c2);
 269   float b3 = brightness(c3);
 270   float relative_b1 = b1 / (b1 + b2 + b3);
 271   float relative_b2 = b2 / (b1 + b2 + b3);
 272   float relative_b3 = b3 / (b1 + b2 + b3);
 273
 274   return lx.hsb(
 275     (h1 * relative_b1 + h2 * relative_b1 + h3 * relative_b3) % 360,
 276      s1 * relative_b1 + s2 * relative_b2 + s3 * relative_b3,
 277      max(max(b1, b2), b3)
 278   );
 279 }
 280