/********************************* PLANAR SPIN ********************************\
| A plane of light spins around the virtical center of the cube and changes    |
| colors after a certian number of rotations                                   |
|                                                                              |
| Written By: Asher Glick                                                      |
| Modified By: S. Dugre to use asynchronous timer                              |
\******************************************************************************/

//int animationSpeed = 50;
int spinsPerColor = 5; // a spin is actually half a revolution
int spin;
int loop_ps;

void planar_spin() {

  if (currentState != lastState) {
    
    lastState = currentState;
    Serial.print("New State = ");
    Serial.println(currentState);

    currentTimer = 0;
    maxTimer = 0.1 * 1000 * 1000 / 16; // 100 ms
    loop_ps = 0;
    spin = 0;
  }

  if ( timerReset) {
    //int x = 0;
    //int y = 0;
    //for (int i = 0; i < spinsPerColor; i++) {
    if(spin < spinsPerColor){
      //for (int x = 0; x < 3; x++) {
      switch(loop_ps){
        
        case 0 ... 2:
          drawLine(color,loop_ps,0,0,3-loop_ps,3,0);
          drawLine(color,loop_ps,0,1,3-loop_ps,3,1);
          drawLine(color,loop_ps,0,2,3-loop_ps,3,2);
          drawLine(color,loop_ps,0,3,3-loop_ps,3,3);
          flushBuffer();
          clearBuffer();
          loop_ps++;
          timerReset = false;
          break;
      
      //for (int y = 0; y < 3; y++) {
        case 3 ... 5:
          drawLine(color,3,(loop_ps % 3),0,0,3-(loop_ps % 3),0);
          drawLine(color,3,(loop_ps % 3),1,0,3-(loop_ps % 3),1);
          drawLine(color,3,(loop_ps % 3),2,0,3-(loop_ps % 3),2);
          drawLine(color,3,(loop_ps % 3),3,0,3-(loop_ps % 3),3);
          flushBuffer();
          clearBuffer();
          loop_ps++;
          timerReset = false;
          break;

        default:
          loop_ps = 0;
          spin++;
          break;
      }
    }
    else {
      color = nextColor(color);
      spin = 0;
    }

  }
}