mode_engine.cpp

//Custom mode for Heiliger Gral
uint16_t WS2812FX::mode_engine()
{
  if (SEGMENT_LENGTH < 30) return mode_static();
  uint16_t stage = SEGMENT_RUNTIME.counter_mode_step;
  //fill all cylinders with background color
  fill(SEGMENT.colors[1]);

  //ignition stage 0-255 fading up 256-511 fading down 512-x pause

  if (stage < 512)
  {
    uint32_t primary = color_from_palette(SEGMENT_RUNTIME.aux_param2, false, false, 0);
    for (uint16_t i = 0; i < 6; i++)
    {
      setPixelColor(SEGMENT.start + SEGMENT_RUNTIME.aux_param*6 + i, color_blend(primary, SEGMENT.colors[1], (stage > 255)? stage-256 : 255-stage));
    }
  }

  SEGMENT_RUNTIME.counter_mode_step += SEGMENT.speed/5 +1;

  //completed ignition of one cylinder, select next (order 0-1-3-4-2)
  uint16_t waitTime = (SEGMENT_RUNTIME.aux_param == 2)? SEGMENT.intensity*3 : SEGMENT.intensity;
  if (SEGMENT_RUNTIME.counter_mode_step >= 512 + waitTime) {
    switch (SEGMENT_RUNTIME.aux_param)
    {
      case 0: SEGMENT_RUNTIME.aux_param = 1; break;
      case 1: SEGMENT_RUNTIME.aux_param = 3; break;
      case 2: SEGMENT_RUNTIME.aux_param = 0; SEGMENT_RUNTIME.aux_param2 = get_random_wheel_index(SEGMENT_RUNTIME.aux_param2); break;
      case 3: SEGMENT_RUNTIME.aux_param = 4; break;
      case 4: SEGMENT_RUNTIME.aux_param = 2; break;
      default: SEGMENT_RUNTIME.aux_param = 0;
    }
    SEGMENT_RUNTIME.counter_mode_step = 0;
  }

  return 20;
}