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quakeforge/include/QF/scene/hierarchy.h

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[scene] Rename libQFentity to libQFscene And start working on scene management.
2021-07-24 05:19:52 +00:00
/*
[scene] Correct some typos in hierarchy.h Lost the y somewhere
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hierarchy.h
[scene] Rename libQFentity to libQFscene And start working on scene management.
2021-07-24 05:19:52 +00:00
Hierarchy management
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2021/02/26
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
[scene] Correct some typos in hierarchy.h Lost the y somewhere
2022-10-08 16:08:48 +00:00
#ifndef __QF_scene_hierarchy_h
#define __QF_scene_hierarchy_h
[scene] Rename libQFentity to libQFscene And start working on scene management.
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#include "QF/darray.h"
#include "QF/qtypes.h"
#include "QF/scene/types.h"
#include "QF/simd/vec4f.h"
#include "QF/simd/mat4f.h"
/** \defgroup entity Hierarchy management
\ingroup utils
*/
///@{
[scene] Move hierarchies to an ECS-based system This is the beginning of adding ECS to QF. While the previous iteration of hierarchies was a start in the direction towards ECS, this pulls most of the 3d-specific transform stuff out of the hierarchy "objects", making all the matrices and vectors/quaternions actual components (in the ECS sense). There's more work to be done with respect to the transform and entity members of hierarchy_t (entity should probably go away entirely, and transform should become hierref_t (or whatever its final name becomes), but I wanted to get things working sooner than later. The motivation for the effort was to allow views to use hierarchy_t, which should be possible once I get entity and transform sorted out. I am really glad I already had automated tests for hierarchies, as things proved to be a little tricky to get working due to forgetting why certain things were there.
2022-10-09 17:00:33 +00:00
/** Descriptors for components attached to every entity in the hierarchy.
*/
typedef struct hierarchy_type_s {
uint32_t num_components;
const struct component_s *components;
} hierarchy_type_t;
typedef struct hierref_s {
struct hierarchy_s *hierarchy;
uint32_t index; ///< index in hierarchy
int32_t id; ///< scene id
} hierref_t;
[scene] Rename libQFentity to libQFscene And start working on scene management.
2021-07-24 05:19:52 +00:00
typedef struct hierarchy_s {
[scene] Track hierarchies instead of root transforms The root transform of each hierarchy can be extracted from the first transform of the list in the hierarchy, so no information is lost. The main reason for the change is I discovered (obvious in hindsight) that deleting root transforms was O(n) due to keeping them in an array, thus the use of a linked list (I don't expect a hierarchy to be in more than one such list), and I didn't want the transforms to be in a linked list.
2022-03-03 21:43:30 +00:00
struct hierarchy_s *next;
struct hierarchy_s **prev;
struct scene_s *scene;
[scene] Move hierarchies to an ECS-based system This is the beginning of adding ECS to QF. While the previous iteration of hierarchies was a start in the direction towards ECS, this pulls most of the 3d-specific transform stuff out of the hierarchy "objects", making all the matrices and vectors/quaternions actual components (in the ECS sense). There's more work to be done with respect to the transform and entity members of hierarchy_t (entity should probably go away entirely, and transform should become hierref_t (or whatever its final name becomes), but I wanted to get things working sooner than later. The motivation for the effort was to allow views to use hierarchy_t, which should be possible once I get entity and transform sorted out. I am really glad I already had automated tests for hierarchies, as things proved to be a little tricky to get working due to forgetting why certain things were there.
2022-10-09 17:00:33 +00:00
uint32_t num_objects;
uint32_t max_objects;
[scene] Use hierref_t instead of transform_t in hierarchy Hierarchies are now much closer to being more general in that they are not tied to 3d transforms. This is a major step to moving the whole entity/transform system into an ECS.
2022-10-22 04:04:07 +00:00
hierref_t **ref;
[scene] Move hierarchies to an ECS-based system This is the beginning of adding ECS to QF. While the previous iteration of hierarchies was a start in the direction towards ECS, this pulls most of the 3d-specific transform stuff out of the hierarchy "objects", making all the matrices and vectors/quaternions actual components (in the ECS sense). There's more work to be done with respect to the transform and entity members of hierarchy_t (entity should probably go away entirely, and transform should become hierref_t (or whatever its final name becomes), but I wanted to get things working sooner than later. The motivation for the effort was to allow views to use hierarchy_t, which should be possible once I get entity and transform sorted out. I am really glad I already had automated tests for hierarchies, as things proved to be a little tricky to get working due to forgetting why certain things were there.
2022-10-09 17:00:33 +00:00
struct entity_s **entity; //FIXME should not exist
uint32_t *childCount;
uint32_t *childIndex;
uint32_t *parentIndex;
const hierarchy_type_t *type;
void **components;
[scene] Rename libQFentity to libQFscene And start working on scene management.
2021-07-24 05:19:52 +00:00
} hierarchy_t;
[scene] Move hierarchies to an ECS-based system This is the beginning of adding ECS to QF. While the previous iteration of hierarchies was a start in the direction towards ECS, this pulls most of the 3d-specific transform stuff out of the hierarchy "objects", making all the matrices and vectors/quaternions actual components (in the ECS sense). There's more work to be done with respect to the transform and entity members of hierarchy_t (entity should probably go away entirely, and transform should become hierref_t (or whatever its final name becomes), but I wanted to get things working sooner than later. The motivation for the effort was to allow views to use hierarchy_t, which should be possible once I get entity and transform sorted out. I am really glad I already had automated tests for hierarchies, as things proved to be a little tricky to get working due to forgetting why certain things were there.
2022-10-09 17:00:33 +00:00
hierarchy_t *Hierarchy_New (struct scene_s *scene,
const hierarchy_type_t *type, int createRoot);
[scene] Implement Hierarchy_Copy It copies an entire hierarchy (minus actual entities, but I'm as yet unsure how to proceed with them), even across scenes as the source scene is irrelevant and the destination scene is used for creating the new transforms.
2022-05-08 02:14:00 +00:00
void Hierarchy_Reserve (hierarchy_t *hierarchy, uint32_t count);
hierarchy_t *Hierarchy_Copy (struct scene_s *scene, const hierarchy_t *src);
[scene] Rename libQFentity to libQFscene And start working on scene management.
2021-07-24 05:19:52 +00:00
void Hierarchy_Delete (hierarchy_t *hierarchy);
uint32_t Hierarchy_InsertHierarchy (hierarchy_t *dst, const hierarchy_t *src,
uint32_t dstParent, uint32_t srcRoot);
void Hierarchy_RemoveHierarchy (hierarchy_t *hierarchy, uint32_t index);
///@}
[scene] Correct some typos in hierarchy.h Lost the y somewhere
2022-10-08 16:08:48 +00:00
#endif//__QF_scene_hierarchy_h
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