Blender_bevy_components_wor.../examples/advanced/TODO.md
Mark Moissette 528e13a250
feat(): Blueprints, crates, enhanced Blender tooling & more (#5)
* feat(bevy_gltf_components):
	* create crate 
	* added SystemSet (GltfComponentsSet) to run process_loaded_scenes (where components are injected)
	in a specific systemset & allow ordering other systems relative to it

* feat(bevy_gltf_blueprints): 
	* created crate
	* made the blueprint library path configurable
	* added BluePrintBundle helper
	* added SystemSet (GltfBlueprintsSet) for better system ordering
	* integrated into advanced demo

* feat(tools-blender-auto-export): 
	* renamed blender tool to gltf_auto_export
   	* rewritten auto_export
	* added blueprint / prefab support
		* creates scene with empties with BlueprintName components in the scene
		* export of the main scene now exports this scene instead of real main scene
		* changes collection stand in names in original scene & sets them back after export
			to have correctly named collection instance exports
		* also added an additional 'SpawnHere' component to not conflate BlueprintNames & spawning requests
   		* toggling & blueprint library output parameters added
   		* added correct handling/ restoring of saved selection when using blueprints

* feat(examples): 
	* added advanced example
	* general example renamed to "basic", and cleaned up

* feat(various): a lot of experiments with saving & loading etc

* chore(assets): updated blend & generated assets

* fix(examples-advanced): disabling hot reloading as it messes up scenes in experiments with save & loading

* docs(): 
	* added & fleshing out docs for the various crates & main README
	* added process doc image & tweaks to README
 	* added missing licence info where relevant
 	* fixed broken links
 	* clarified some aspects
 	* added updated screenshots where relevant
 	* added tweaks & improvements etc
2023-09-28 14:10:45 +02:00

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- [x] seperate "spawn velocity" into a seperate (optional) component
- [x] try dynamically spawned entities with save & load
- [ ] fix issues with multiple entites having the same name ??
- [ ] fix issues with system ordering
- [x] add sets for proxy-replacements
- [x] annoying camera movement : camera should be saveable as well
=> we need to be able to only save the camera position (and name)
- [ ] only spawn "new level" stuff when transitioning from menu to game ?
- [ ] put more thoughts into this
- [ ] rework how save-loading is triggered
- [ ] no hardcoded keypresses
- [ ] ability to choose what save to load ?
- [ ] take a look at bevy_moonshine_save
- [ ] move to system pipelines
- [x] split Blueprints into a seperate crate: perhaps bevy_gltf_blueprints
- [x] how to deal with states that are not defined as part of the plugin/crate ?
- [x] same issue for the assets
- [ ] support multiple main scenes in the blender plugin ?
- [ ] study possibilities of expanding the bevy & blender tooling side to define UIS
- likely using the blender data only as a placeholder/ directly replace in Python
- system ordering ?
load level => inject components => spawn blueprint entities/rehydrate => (loading) => replace proxies
OR
load level => inject components => (loading) => spawn blueprint entities/rehydrate => replace proxies
- perhaps it does make more sense to save ALL entities and not just the dynamic ones? mostly as we have the blueprints anyway, which should cut down on needed data ?
- different approaches for dealing with saving/loading
in particular the problem of entites that are defined as part of the level but can be despawned (items that get picked up etc)
Bevy side
* var 1 : spawn all entities completely, despawn those saveables that are not actually present in the save data but that have been spawned
* problems: needs correct ordering of systems otherwise the diffing above will not work
* pros: minimal save files, only bevy boilerplate
* cons: requires spawning potentially huge gltf files just to "peek" inside of them to know if they are saveable
* var 2 : save both saveables & unsaveables but only save the absolute minimal data for unsaveables
* problems: how to combine different filters into a single save file ?
* pros: easier diffing, more homogeneous handling
* cons: a lot bigger save file with mostly useless data
Blender side
* var 3 => CHOSEN OPTION : mark INSTANCES in advance as static/dynamic (ie saveable or not), thus this data would be present in the world/level and not inside the gltf data
* problems: would require adding custom properties to each instance in Blender (COULD be automated by 'peeking' inside the collection)
* pros: simpler, and this might be more "editor-like" where you would mark each item as static or not
* cons: potentially a lot of manual work / error prone