// title:  game of life
// author: Simon Cambier
// desc:   short description
// script: js
const width = 240;

const height = 136;

let state = [];

let next = [];

let generation = 0;

function BOOT() {
 for (let i = 0; i < width; i++) {
  state[i] = [];
  next[i] = [];
  for (let j = 0; j < height; j++) {
   state[i][j] = Math.random() > .5;
   next[i][j] = false;
  }
 }
}

function TIC() {
 cls(13);
 for (let i = 0; i < width; i++) {
  for (let j = 0; j < height; j++) {
   let count = 0;
   // Use modulo to wrap around the edges
   if (state[(i - 1 + width) % width][(j - 1 + height) % height]) count++; // top left
   if (state[(i - 1 + width) % width][j]) count++; // top
   if (state[(i - 1 + width) % width][(j + 1) % height]) count++; // top right
   if (state[i][(j - 1 + height) % height]) count++; // left
   if (state[i][(j + 1) % height]) count++; // right
   if (state[(i + 1) % width][(j - 1 + height) % height]) count++; // bottom left
   if (state[(i + 1) % width][j]) count++; // bottom
   if (state[(i + 1) % width][(j + 1) % height]) count++; // bottom right
   // Currently alive
   if (state[i][j]) {
    if (count < 2) {
     next[i][j] = false;
    } else if (count > 3) {
     next[i][j] = false;
    } else {
     next[i][j] = true;
    }
   }
   // Currently dead
    else {
    if (count === 3) {
     next[i][j] = true;
    } else {
     next[i][j] = false;
    }
   }
  }
 }
 // Swap state and next
 // Use a temp var, otherwise state and next will be the same object
 let temp = state;
 state = next;
 next = temp;
 for (let i = 0; i < width; i++) {
  for (let j = 0; j < height; j++) {
   if (state[i][j]) {
    pix(i, j, 7);
   }
  }
 }
 print(`Generation: ${++generation}`, 1, 1, 0);
}
// <TILES>
// 001:eccccccccc888888caaaaaaaca888888cacccccccacc0ccccacc0ccccacc0ccc
// 002:ccccceee8888cceeaaaa0cee888a0ceeccca0ccc0cca0c0c0cca0c0c0cca0c0c
// 003:eccccccccc888888caaaaaaaca888888cacccccccacccccccacc0ccccacc0ccc
// 004:ccccceee8888cceeaaaa0cee888a0ceeccca0cccccca0c0c0cca0c0c0cca0c0c
// 017:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
// 018:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
// 019:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
// 020:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
// </TILES>

// <WAVES>
// 000:00000000ffffffff00000000ffffffff
// 001:0123456789abcdeffedcba9876543210
// 002:0123456789abcdef0123456789abcdef
// </WAVES>

// <SFX>
// 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000304000000000
// </SFX>

// <PALETTE>
// 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
// </PALETTE>