XY()

uint16_t XY	(	uint8_t	x,
		uint8_t	y )

Definition at line 37 of file Noise.ino.

{
  uint16_t i;
 
  if( kMatrixSerpentineLayout == false) {
    i = (y * kMatrixWidth) + x;
  }
 
  if( kMatrixSerpentineLayout == true) {
    if( y & 0x01) {
      // Odd rows run backwards
      uint8_t reverseX = (kMatrixWidth - 1) - x;
      i = (y * kMatrixWidth) + reverseX;
    } else {
      // Even rows run forwards
      i = (y * kMatrixWidth) + x;
    }
  }
 
  return i;
}

References kMatrixSerpentineLayout, kMatrixWidth, x, and y.