Since joint resources are created by joint nodes and also they take care of freeing them, the physics server doesn't need to free bodies' joints explicitly.
The logic for clearing the constraints map/set is still relevant as there may be collision pairs and in their case its the server itself the one creating them and therefore releasing them.
(cherry picked from commit fbeb27b01d)
- Use `NOTIFICATION_ENTER`/`EXIT_WORLD` for `Area` (intead of `*_TREE`).
- Now both bodies' and areas' constraints are cleaned up.
- And now also that happens as soon as the space is set to null (i.e., when exiting the tree) instead of only at freeing time.
- When clearing constraints, the loop goes on to the next if the current is already released, instead of breaking.
- When one has been already released, no error is shown from now on, as it's something expected, since a pair (our kind of constraint of interest) can be freed by any of its involved collision objects and the other will try again.
- Implement index shifting (or marking as -1) for shapes indices in collision pairs shapes are removed.
- Standarize behavior of bodies and areas so that anything that invalidates a given pair gives the same result (collision mask, actual collision, etc); for instance, triggering area enter/exit signals.
- Add missing member initializations.
- Extend the new-space-equals-area/body-current-space test to every case.
- Fix 3D ray-casts early accepting Areas (skipping the mask check).
- Fix unpairing of large elements (2D's `BroadPhase2DHashGrid`).
Some of these prevent random crashes caused by constraints with dangling pointers to involved objects.
Fixes#8856.
Fixes#7589.
Fixes#6676.
And maybe others.
Got part of the fix from 5fc084c28e
Added an engine setting to enable the fix (physics_2d/motion_fix_enabled) which is false by default so the default behavior is the same as always
Added motion methods with a from parameter, the same as 3.0 does
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
-Visible 2D and 3D Shapes, Polygons, Tile collisions, etc.
-Visible Navmesh and Navpoly
-Visible collision contacts for 2D and 3D as a red point
-Customizable colors in project settings
-KinematicBody2D::move now properly recognizes collision exceptions and masks, fixes#1649
-Removed object type masking for KinematicBody2D
-Added a test_motion() function to RigidBody2D, allowing simlar behavior to KinematicBody2D::move there.
-=-=-=-=-=-=-=-=-=-=-=-=-=
-New Vehicle (Based on Bullet's RaycastVehicle) - Vehiclebody/VehicleWheel. Demo will come soon, old vehicle (CarBody) will go away soon too.
-A lot of fixes to the 3D physics engine
-Added KinematicBody with demo
-Fixed the space query API for 2D (demo will come soon). 3D is WIP.
-Fixed long-standing bug with body_enter/body_exit for Area and Area2D
-Performance variables now includes physics (active bodies, collision pairs and islands)
-Ability to see what's inside of instanced scenes!
-Fixed Blend Shapes (no bs+skeleton yet)
-Added an Android JavaClassWrapper singleton for using Android native classes directly from GDScript. This is very Alpha!
-IMA-ADPCM support for samples, this means that sound effects can be compressed and use 4 timess less RAM.
-New 3D import workflow based on Wavefront OBJ. Import single objects as mesh resources instead of full scenes. Many people prefers to work this way. Just like the rest of the imported resources, these are updated in realtime if modified externally.
-Mesh resources now support naming surfaces. This helps reimporting to identify which user-created materials must be kept.
-Several fixes and improvements to SurfaceTool.
-Anti Aliasing added to WorldEnvironment effects (using FXAA)
-2D Physics bodies (RigidBody, KinematicBody, etc), Raycasts, Tilemap, etc support collision layers. This makes easy to group which objects collide against which.
-2D Trigger shapes can now also trigger collision reporting in other 2D bodies (it used to be in Area2D before)
-Viewport render target textures can now be filtered.
-Few fixes in GDscript make it easier to work with static functions and class members.
-Several and many bugfixes.
-Added new screen resizing options, stretch_2d is removed, new much more flexible ones.
-Fixed bug in viewport (can create more instances in 3d-in-2d demo now)
-Can set android permissions and screen sizes manually in the export settings
-Changed export templates extension to .tpz (too many people unzipped the manually..)
-File dialog now ensures that the proper extension is used (will not allow to save without it)
-Fixed bug that made collision exceptions not work in 2D
