From 86025a8836d541eba09986e14f9ed50362a89097 Mon Sep 17 00:00:00 2001
From: Love Billenius <lovebillenius@disroot.org>
Date: Wed, 4 Sep 2024 22:24:05 +0200
Subject: [PATCH] Comments

---
 src/life.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/life.cpp b/src/life.cpp
index e2c6c25..db57eec 100755
--- a/src/life.cpp
+++ b/src/life.cpp
@@ -129,6 +129,7 @@ int gridAliveNeighbors(Grid<Cell> &grid, int row, int col) {
 
     return alive;
 }
+
 /**
  * Run one Game of Life tick.
  * Cells (X) live and die by the following rules:
@@ -144,12 +145,16 @@ void gridTick(Grid<Cell> &grid) {
         for (int col = 0; col < grid.numCols(); col++) {
             int alive = gridAliveNeighbors(grid, row, col);
 
+            // A cell with 1 or fewer neighbours dies.
             if (alive == 1)
                 nextGrid.set(row, col, Cell::DEAD);
+            // Locations with 2 neighbours remain stable.
             else if (alive == 2)
                 nextGrid.set(row, col, grid.get(row, col));
+            // Locations with 3 neighbours will create life.
             else if (alive == 3)
                 nextGrid.set(row, col, Cell::ALIVE);
+            // A cell with 4 or more neighbours dies.
             else if (alive == 4)
                 nextGrid.set(row, col, Cell::DEAD);
         }