XY()

uint8_t XY	(	uint8_t	x,
		uint8_t	y )

Examples

Noise.ino, and XYMatrix.ino.

Definition at line 220 of file Fire2023.h.

                                  {
  // any out of bounds address maps to the first hidden pixel
  // https://macetech.github.io/FastLED-XY-Map-Generator/
  if ( (x >= WIDTH) || (y >= HEIGHT) ) {
    return (LAST_VISIBLE_LED + 1);
  }
  const uint8_t XYTable[] = {
    25,  26,  81,  82,
    25,  27,  81,  83,  
    25,  28,  80,  84,  
    24,  29,  79,  85,  
    23,  30,  78,  86,  
    22,  31,  77,  87,  
    21,  32,  76,  88,  
    20,  33,  75,  89,  
    19,  34,  74,  90,  
    18,  35,  73,  91,  
    17,  36,  72,  92,  
    16,  37,  71,  93,
    15,  38,  70,  94,
    14,  39,  69,  95,
    13,  40,  68,  96,
    12,  41,  67,  97,
    11,  42,  66,  98,
    10,  43,  65,  99,
     9,  44,  64, 100,  
     8,  45,  63, 101,  
     7,  46,  62, 102,  
     6,  47,  61, 103,  
     5,  48,  60, 104,  
     4,  49,  59, 105,  
     3,  50,  58, 106,
     2,  51,  57, 107,   
     1,  52,  56, 108,
     0,  53,  55, 109
  };  
 
  uint8_t i = (y * WIDTH) + x;
  uint8_t j = XYTable[i];
  return j;
}

References HEIGHT, LAST_VISIBLE_LED, WIDTH, x, and y.