examples/reflection/
reflection_basics_deserialize.rs

1use crate::z_ignore_test_common::*;
2
3use flecs_ecs::prelude::*;
4
5#[derive(Debug, Default, Component)]
6#[flecs(meta)]
7pub struct Position {
8    pub x: f32,
9    pub y: f32,
10}
11
12fn main() {
13    let world = World::new();
14
15    /* Alternatively when not using meta attribute,
16    you can do it manually like so (without the derive macro)
17    .member(f32,"x", 1 /* count */, core::mem::offset_of!(Position, x))
18    .member(f32,"y", 1, core::mem::offset_of!(Position, y));
19    */
20
21    // Create a new entity, set value of position using reflection API
22    let e = world.entity().add(Position::id());
23
24    e.get::<&mut Position>(|pos| {
25        let mut cur = world.cursor::<Position>(pos);
26        cur.push(); // {
27        cur.set_float(10.0); //   10
28        cur.next(); //   ,
29        cur.set_float(20.0); //   20
30        cur.pop(); // }
31
32        println!("{}", world.to_expr(pos));
33    });
34
35    // Use member names before assigning values
36    e.get::<&mut Position>(|pos| {
37        let mut cur = world.cursor::<Position>(pos);
38        cur.push(); // {
39        cur.member("y"); //   y:
40        cur.set_float(10.0); //   10
41        cur.member("x"); //   x:
42        cur.set_float(20.0); //   20
43        cur.pop(); // }
44
45        println!("{}", world.to_expr(pos));
46    });
47
48    // Output:
49    //  {x: 10, y: 20}
50    //  {x: 20, y: 10}
51}
52
53#[cfg(feature = "flecs_nightly_tests")]
54#[test]
55fn test() {
56    let output_capture = OutputCapture::capture().unwrap();
57    main();
58    output_capture.test("reflection_deserialize".to_string());
59}
examples/reflection/reflection_basics_deserialize.rs

examples/reflection/
reflection_basics_deserialize.rs
