global state, actual prandom and formatting

main.odin

@@ -1,54 +1,59 @@
 package main
 
 import "core:fmt"
+import "core:math/rand"
 import "core:strings"
 import "core:time"
 
 WIDTH :: 64
 HEIGHT :: 64
 AREA :: WIDTH * HEIGHT
+state: [AREA]bool
 
 main :: proc() {
-	board : [AREA]bool = ---
 	fmt.print("\e[2J") // clear screen
+	for i in 0 ..< AREA do state[i] = bool(rand.uint32() & 1)
 	for {
-		print_board(&board)
+		print_board()
-		update_board(&board)
+		update_board()
 		time.sleep(time.Millisecond * 50)
 	}
 }
 
-print_board :: proc(state: ^[AREA]bool) {
+print_board :: proc() {
 	fmt.print("\e[u") // reset cursor
 	for y := 0; y < HEIGHT; y += 2 {
 		line := strings.builder_make()
 		defer strings.builder_destroy(&line)
-		for x in 0..<WIDTH {
+
+		for x in 0 ..< WIDTH {
 			top := state[x + y * WIDTH]
-			bot := state[x + (y+1) * WIDTH]
+			bot := state[x + (y + 1) * WIDTH]
-			c : rune
+			c: rune
 			switch {
-				case top && bot: c = '█'
+			case top && bot:
-				case top && !bot: c = '▀'
+				c = '█'
-				case !top && bot: c = '▄'
+			case top && !bot:
-				case: c = ' '
+				c = '▀'
+			case !top && bot:
+				c = '▄'
+			case:
+				c = ' '
 			}
 			strings.write_rune(&line, c)
 		}
 		fmt.println(strings.to_string(line))
 	}
-	fmt.println()
 }
 
-
+update_board :: proc() {
-update_board :: proc(state: ^[AREA]bool) {
+	new_state: [AREA]bool = ---
-	new_state : [AREA]bool = ---
+	for x in 0 ..< WIDTH {
-	for x in 0..<WIDTH {
+		for y in 0 ..< HEIGHT {
-		for y in 0..<HEIGHT {
 			count := 0
-			for dx in -1..=1 {
+			for dx in -1 ..= 1 {
 				px := (x + dx + WIDTH) % WIDTH
-				for dy in -1..=1 {
+				for dy in -1 ..= 1 {
 					py := (y + dy + HEIGHT) % HEIGHT
 					if state[px + py * WIDTH] do count += 1
 				}
@@ -58,9 +63,7 @@ update_board :: proc(state: ^[AREA]bool) {
 			new_state[x + y * WIDTH] = new_cell
 		}
 	}
-	for i in 0..<AREA {
+	for i in 0 ..< AREA {
 		state[i] = new_state[i]
 	}
 }
-
-