[ecs] Implement hierarchies as components

The main goal of this change was to make it easier to tell when a
hierarchy has been deleted, but as a side benefit, it got rid of the use
of PR_RESMAP. Also, it's easy to track the number of hierarchies.

Unfortunately, it showed how brittle the component side of the ECS is
(scene and canvas registries assumed their components were the first (no
long the case), thus the sweeping changes).

Centerprint doesn't work (but it hasn't for a while).
This commit is contained in:
Bill Currie 2024-01-01 20:21:07 +09:00
parent fc9c2fa544
commit 35eec0b2e5
77 changed files with 1196 additions and 979 deletions

View file

@ -387,8 +387,9 @@ color_window (void)
static transform_t
create_debug_camera (void)
{
debug_camera_pivot = Transform_New (debug_scene->reg, nulltransform);
debug_camera = Transform_New (debug_scene->reg, debug_camera_pivot);
ecs_system_t ssys = { .reg = debug_scene->reg, .base = debug_scene->base };
debug_camera_pivot = Transform_New (ssys, nulltransform);
debug_camera = Transform_New (ssys, debug_camera_pivot);
return debug_camera;
}