Registry

LDKBuiltinSystemId

IDs of builtin systems.

typedef enum LDKBuiltinSystemId{
  LDK_SYSTEM_ID_SCENEGRAPH=0x1,
  LDK_SYSTEM_ID_USER=0x100
}LDKBuiltinSystemId;

LDKSystemDesc

typedef struct LDKSystemDesc{
  u64 id;
  const char *name;
  u32 flags;
  LDKSystemBucket bucket;
  i32 order;
  u32 data_size;
  LDKSystemInitializeFn initialize;
  LDKSystemUpdateFn update;
  LDKSystemTerminateFn terminate;
  const u32 *component_types;
  u32 component_count;
}LDKSystemDesc;

LDKSystemFlags

typedef enum LDKSystemFlags{
  LDK_SYSTEM_FLAG_NONE=0,
  LDK_SYSTEM_FLAG_ENABLED=1<<0,
  LDK_SYSTEM_FLAG_ENGINE_NATIVE=1<<1,
  LDK_SYSTEM_FLAG_RUN_WHEN_PAUSED=1<<2
}LDKSystemFlags;

LDKSystemRegistry

typedef struct LDKSystemRegistry{
  void *internal;
  struct LDKRoot *root;
  u8 is_initialized;
  u8 is_started;
  u8 is_paused;
}LDKSystemRegistry;

ldk_engine_system_descriptor_count

Descriptors for systems implemented by the engine. Games own registration.

LDK_API u32 ldk_engine_system_descriptor_count(void);

ldk_engine_system_descriptor_get

Get the engine system descriptor.

LDK_API bool ldk_engine_system_descriptor_get(
 u32 index,
 LDKSystemDesc *out
);

ldk_system_registry_at

Get a system registered at a particular index.

LDK_API bool ldk_system_registry_at(
 const LDKSystemRegistry *registry,
 u32 index,
 LDKSystemDesc *out
);

ldk_system_registry_clear

Clear the state of the system registry.

LDK_API bool ldk_system_registry_clear(LDKSystemRegistry *registry);

ldk_system_registry_count

Count registered systems.

LDK_API u32 ldk_system_registry_count(const LDKSystemRegistry *registry);

ldk_system_registry_find_by_id

Find a registered system by its stable ID.

LDK_API bool ldk_system_registry_find_by_id(
 LDKSystemRegistry *registry,
 u64 id,
 LDKSystemDesc *out
);

ldk_system_registry_has

Check whether a system ID is registered.

LDK_API bool ldk_system_registry_has(
 const LDKSystemRegistry *registry,
 u64 id
);

ldk_system_registry_initialize

Initialize the system registry.

LDK_API bool ldk_system_registry_initialize(LDKSystemRegistry *registry);

ldk_system_registry_is_busy

True while a bucket or a system lifecycle callback is executing.

LDK_API bool ldk_system_registry_is_busy(const LDKSystemRegistry *registry);

ldk_system_registry_register

Register the system registry.

LDK_API bool ldk_system_registry_register(
 LDKSystemRegistry *registry,
 const LDKSystemDesc *desc
);

ldk_system_registry_terminate

Shut down the system registry.

LDK_API void ldk_system_registry_terminate(LDKSystemRegistry *registry);

ldk_system_registry_unregister

Unregister the system registry.

LDK_API bool ldk_system_registry_unregister(
 LDKSystemRegistry *registry,
 u64 id
);