arduino logic GOL

gistfile1.txt

//General Program flow.
//Replace lines 34/35 with something to log to STDOUT with like "X" for dead and "O" for alive to debug
//Shouldn't require any external dependencies

//Setup
//initGrid();
//drawGrid();
//LOOP
//    computeCA();
//    drawGrid();

#define GRIDX 160
#define GRIDY 120
#define CELLXY 2

#define GEN_DELAY 0

//Current grid
uint8_t grid[GRIDX][GRIDY];

//The new grid for the next generation
uint8_t newgrid[GRIDX][GRIDY];

uint16_t genCount = 0;

//Draws the grid on the display
void drawGrid(void) {

  uint16_t color = TFT_WHITE;
  for (int16_t x = 1; x < GRIDX - 1; x++) {
    for (int16_t y = 1; y < GRIDY - 1; y++) {
      if ((grid[x][y]) != (newgrid[x][y])) {
        if (newgrid[x][y] == 1) color = 0x0F00; //random(0xFFFF);
        else color = 0;
        //M5.Lcd.fillRect(CELLXY * x, CELLXY * y, CELLXY, CELLXY, color);
        //Replace this with something to write to STDOUT
      }
    }
  }
}

//Initialise Grid
void initGrid(void) {
  for (int16_t x = 0; x < GRIDX; x++) {
    for (int16_t y = 0; y < GRIDY; y++) {
      newgrid[x][y] = 0;

      if (x == 0 || x == GRIDX - 1 || y == 0 || y == GRIDY - 1) {
        grid[x][y] = 0;
      }
      else {
        if (random(3) == 1)
          grid[x][y] = 1;
        else
          grid[x][y] = 0;
      }

    }
  }
}

//Compute the CA. Basically everything related to CA starts here
void computeCA() {
  for (int16_t x = 1; x < GRIDX; x++) {
    for (int16_t y = 1; y < GRIDY; y++) {
      int neighbors = getNumberOfNeighbors(x, y);
      if (grid[x][y] == 1 && (neighbors == 2 || neighbors == 3 ))
      {
        newgrid[x][y] = 1;
      }
      else if (grid[x][y] == 1)  newgrid[x][y] = 0;
      if (grid[x][y] == 0 && (neighbors == 3))
      {
        newgrid[x][y] = 1;
      }
      else if (grid[x][y] == 0) newgrid[x][y] = 0;
    }
  }
}

// Check the Moore neighborhood
int getNumberOfNeighbors(int x, int y) {
  return grid[x - 1][y] + grid[x - 1][y - 1] + grid[x][y - 1] + grid[x + 1][y - 1] + grid[x + 1][y] + grid[x + 1][y + 1] + grid[x][y + 1] + grid[x - 1][y + 1];
}