guessing game zig

guessing_game.zig

const std = @import("std");
const print = std.debug.print;

pub fn main() anyerror!void {
    print("Guess the number!\n", .{});

    var secretNumber: i32 = std.rand.DefaultPrng
        .init(@intCast(u64, std.time.timestamp()))
        .random().intRangeAtMost(i32, 0, 100);
    print("The secret number is {}\n", .{secretNumber});

    var buf: [256]u8 = undefined;
    var guess_str: []const u8 = undefined;
    while (true) {
        print("Please input your guess.\n", .{});

        guess_str = try(std.io.getStdIn()
            .reader()
            .readUntilDelimiterOrEof(buf[0..], '\n')) orelse continue;

        guess_str = std.mem.trim(u8, guess_str, " ");
        var guess = std.fmt.parseInt(i32, guess_str, 10) catch {
            continue;
        };

        print("{s}\n", .{guess_str});

        if (guess < secretNumber) {
            print("To small!\n", .{});
        } else if (guess > secretNumber) {
            print("Too big!\n", .{});
        } else {
            print("You win!\n", .{});
            break;
        }

        print("You guessed: {}\n", .{guess});
    }
}