commit f5cab4630283deacf8baddee974399581fe254e7
parent 520828a3467da9dddaa901e27670b0a5c9cb0338
Author: Ryan Jeffrey <ryan@ryanmj.xyz>
Date: Tue, 20 Apr 2021 14:29:06 -0700
Conway's Game of life 1.0
Diffstat:
| M | conway.js | | | 30 | ++++++++++++++++++++++++++++-- |
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/conway.js b/conway.js
@@ -63,7 +63,7 @@ function init() {
// get the total number of neighboring cells that are alive.
-function totalAliveNeighbors()
+function totalAliveNeighbors(x, y)
{
let sum = 0;
let newX = 0;
@@ -85,6 +85,30 @@ function totalAliveNeighbors()
return sum;
}
+// Update the cells.
+function updateCells()
+{
+ // Deep copy the board.
+ let nextBoard = JSON.parse(JSON.stringify(cells));
+
+ // Update the new board.
+ for(let i = 0; i < rows; i++)
+ {
+ for(let j = 0; j < cols; j++)
+ {
+ let numAlive = totalAliveNeighbors(i, j);
+ let isAlive = (cells[i][j] == lifeState.alive);
+
+ if(isAlive && (numAlive < 2 || numAlive > 3))
+ nextBoard[i][j] = lifeState.dead;
+ else if(!isAlive && numAlive == 3)
+ nextBoard[i][j] = lifeState.alive;
+ }
+ }
+ cells = nextBoard;
+}
+
+
function startAnimating(fps) {
fpsInterval = 1000 / fps;
@@ -127,6 +151,8 @@ function animate() {
return;
}
+ updateCells();
+
// request another frame
requestAnimationFrame(animate);
@@ -160,4 +186,4 @@ function animate() {
init();
-startAnimating(10);
+startAnimating(20);
