implement game of life

.gitignore

@@ -0,0 +1 @@
+*.exe

main.odin

@@ -0,0 +1,85 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:strings"
+
+WIDTH :: 32
+HEIGHT :: 32
+AREA :: WIDTH * HEIGHT
+
+main :: proc() {
+	fmt.println("hellope")
+	board : [AREA]bool = ---
+
+	// board[0] = true
+	// board[1] = true
+	// board[WIDTH] = true
+	// for x in 4..<14 {
+	// 	board[x + WIDTH*8] = true
+	// }
+	for {
+		print_board(&board)
+		bytes := 0
+		err : os.Errno
+		buf : [3]byte
+		for {
+			bytes, err = os.read(os.stdin, buf[:])
+			if bytes > 0 do break
+		}
+		update_board(&board)
+	}
+}
+
+print_board :: proc(state: ^[AREA]bool){
+	fmt.println(strings.repeat("-", WIDTH))
+	for y := 0; y < HEIGHT; y += 2{
+		for x in 0..<WIDTH{
+			top := state[x + y * WIDTH]
+			bot := state[x + (y+1) * WIDTH ]
+			if top {
+				if bot{
+					fmt.print("█")
+				}else{
+					fmt.print("▀")
+				}
+			}else{
+				if bot {
+					fmt.print("▄")
+				}else{
+					fmt.print(" ")
+				}
+			}
+		}
+		fmt.println()
+	}
+	fmt.println()
+}
+
+
+update_board :: proc(state: ^[AREA]bool){
+	new_state : [AREA]bool = ---
+	for x in 0..<WIDTH {
+		for y in 0..<HEIGHT {
+			count := 0
+			for dx in -1..=1 {
+				px := (x + dx + WIDTH) % WIDTH
+				for dy in -1..=1 {
+					py := (y + dy + HEIGHT) % HEIGHT
+						if state[px + py * WIDTH]{
+							count += 1
+						}
+					}
+				}
+				cell := state[x + y * WIDTH];
+				new_cell := (count == 3 && !cell) || (cell && count < 5 && count > 2)
+				// fmt.println("count %v, state %v", count, new_cell)
+				new_state[x + y * WIDTH] = new_cell
+		}
+	}
+	for i in 0..<AREA {
+		state[i] = new_state[i]
+	}
+}
+
+