module main type Mat22 = [2][2]f32 type Mat4 = [4]f32 @[heap] struct Game { mut: object_id u32 } @[heap] struct GameObject { mut: transform Mat22 = Mat22([[f32(1), 2]!, [f32(3), 4]!]!) transform2 Mat4 = Mat4([f32(1), 2, 3, 4]!) } fn (mut gameobject GameObject) instance() &GameObject { return &GameObject{ ...gameobject } } fn test_main() { mut v := GameObject{} mut v2 := v.instance() dump(v) assert v2.transform == Mat22([[f32(1), 2]!, [f32(3), 4]!]!) assert v2.transform2 == Mat4([f32(1), 2, 3, 4]!) }