feat: got logic to run.

main.go

@@ -20,6 +20,9 @@ type gol struct {
 	buffer [ROW][COL]int
 }
 
+// Create array that holds field's to check for neighbours
+var CHECK_ARRAY = [8][2]int{{-1, -1}, {-1, 0}, {-1, +1}, {0, -1}, {0, +1}, {+1, -1}, {+1, 0}, {+1, +1}}
+
 // Initialize empty game of life
 func initGol() gol {
 	start := [ROW][COL]int{}
@@ -44,6 +47,36 @@ func (g gol) Init() tea.Cmd {
 	return nil
 }
 
+// Check neighobours
+func (g gol) countNeighbours(x int, y int) int {
+	n := 0
+	for i := 0; i < 8; i++ {
+		if g.buffer[x+CHECK_ARRAY[i][0]][y+CHECK_ARRAY[i][1]] == 1 {
+			n += 1
+		}
+	}
+	return n
+}
+
+// Life logic
+func (g gol) Life() tea.Model {
+	for i := 1; i < ROW-1; i++ {
+		for j := 1; j < COL-1; j++ {
+			n := g.countNeighbours(i, j)
+			if g.buffer[i][j] == 1 {
+				if n < 2 || n > 3 {
+					g.buffer[i][j] = 0
+				}
+			} else {
+				if n == 3 {
+					g.buffer[i][j] = 1
+				}
+			}
+		}
+	}
+	return g
+}
+
 // Simple update
 func (g gol) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	switch msg := msg.(type) {
@@ -52,6 +85,9 @@ func (g gol) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		switch msg.String() {
 		case "ctrl+c", "q":
 			return g, tea.Quit
+		case " ":
+			g.Life()
+			return g, nil
 		}
 	}
 	return g, nil