feat: implement game logic

src/main.zig

@@ -1,5 +1,8 @@
 const std = @import("std");
 const rl = @import("raylib");
+comptime {
+    _ = @import("game.zig");
+}
 
 pub fn main() anyerror!void {
     const alloc = std.heap.page_allocator;
@@ -25,7 +28,3 @@ pub fn main() anyerror!void {
         rl.drawRectangle(10, 10, 10, 10, .black);
     }
 }
-
-test "should initialize game" {
-    try std.testing.expect(42 == 42);
-}