Unable to use FlecsRest

[jarednorman]

Not sure if this is related to #2, but struggling to get to EcsRest to work.

fatal: flecs.c: 9695: assert: entity != 0 INVALID_PARAMETER
1   7drl-2025                           0x000000010324f16c flecs_log_msg + 1512
2   7drl-2025                           0x0000000103270340 ecs_printv_ + 200
3   7drl-2025                           0x000000010322b744 ecs_log_ + 112
4   7drl-2025                           0x0000000103221574 ecs_assert_log_ + 272
5   7drl-2025                           0x000000010322e620 ecs_is_alive + 184
6   7drl-2025                           0x0000000103236db0 ecs_set_id + 180
7   7drl-2025                           0x00000001033478f0 zflecs.set__anon_6439 + 84
8   7drl-2025                           0x0000000103335ebc zflecs.singleton_set__anon_3370 + 52
9   7drl-2025                           0x0000000103333ee4 ecs.init + 116
10  7drl-2025                           0x000000010333396c main.main + 268
11  7drl-2025                           0x0000000103334260 main + 596
12  dyld                                0x000000018dc03154 start + 2476

[jarednorman]

More info:

Here's the code that triggers the issue:

ecs.FlecsRestImport(world);
std.debug.print("{d}\n", .{ecs.id(ecs.EcsRest)});
_ = ecs.singleton_set(world, ecs.EcsRest, .{});

It's worth noting that the print statement returns 0, which suggests to me that the call to FlecsRestImport is not doing the right thing.

[jarednorman]

For context, here's an issue from the monorepo on using this functionality: zig-gamedev/zig-gamedev#408

[Srekel]

Interesting, it seems the zflecs wrapper does something different than what we use on Tides. Will try to look into this during the weekend. In the meantime you may want to try this approach and see if that works.

https://github.com/Srekel/tides-of-revival/blob/e863528ebf8bc6324c11849087ae86a2220ed0c1/src/flecs_util/world.zig#L327