Feat: add bitboard print

Author: lovc21

justfile

@@ -4,5 +4,5 @@ zig-fmt:
 run: zig-fmt
   zig build run
 
-run-test: zig-fmt
-  zig build test --verbose
+test: zig-fmt
+  zig build test --summary all

src/bitboard.zig

@@ -1,13 +1,25 @@
 const std = @import("std");
-
+const util = @import("util.zig");
 pub fn print_board(bitboard: u64) !void {
     for (0..8) |rank| {
+        std.debug.print("  {} ", .{8 - rank});
         for (0..8) |file| {
             const square = rank * 8 + file;
+            const squareEnum = util.Square.fromInt(square);
+
+            if (util.get_bit(bitboard, squareEnum)) {
+                std.debug.print(" 1", .{});
+            } else {
+                std.debug.print(" 0", .{});
+            }
 
-            std.debug.print("{d}", .{(bitboard >> @enumFromInt(square)) & 1});
+            std.debug.print(" {d}", .{square});
         }
 
         std.debug.print("\n", .{});
     }
+
+    std.debug.print("\n     a b c d e f g h\n\n", .{});
+    std.debug.print(" Bitboard: 0x{0x}\n", .{bitboard});
+    std.debug.print(" Bitboard: 0b{b}\n\n", .{bitboard});
 }

src/main.zig

@@ -4,7 +4,7 @@ const types = @import("types.zig");
 
 pub fn main() !void {
     std.debug.print("Hello NeroSpeed.\n", .{});
-    var bitboard_1: u64 = 1;
-    bitboard_1 |= 1 << 7;
+    const bitboard_1: u64 = 0;
+    std.debug.print("{d}", .{bitboard_1});
     try bitboard.print_board(bitboard_1);
 }

src/util.zig

@@ -1,4 +1,11 @@
-pub inline fn get_bit(bitboard: u64, square: Square) bool {
-    const mask = @as(u64, 1) << square.toU6();
-    return (bitboard & mask) != 0;
+const std = @import("std");
+
+pub fn get_bit(bitboard: u64, square: u16) bool {
+    return (bitboard & (1 << square)) != 0;
 }
+
+pub const Square = enum(u7) {
+    pub inline fn fromInt(square: usize) Square {
+        return @enumFromInt(square);
+    }
+};