Physics (#3485)

* Content side new physics structure

* BroadPhase outline done

* But we need to fix WorldAABB

* Fix static pvs AABB

* Fix import

* Rando fixes

* B is for balloon

* Change human mob hitbox to circle

* Decent movement

* Start adding friction to player controller

I think it's the best way to go about it to keep other objects somewhat consistent for physics.

* This baby can fit so many physics bugs in it.

* Slight mob mover optimisations.

* Player mover kinda works okay.

* Beginnings of testbed

* More testbed

* Circlestack bed

* Namespaces

* BB fixes

* Pull WorldAABB

* Joint pulling

* Semi-decent movement I guess.

* Pulling better

* Bullet controller + old movement

* im too dumb for this shit

* Use kinematic mob controller again

It's probably for the best TBH

* Stashed shitcode

* Remove SlipController

* In which movement code is entirely refactored

* Singularity fix

* Fix ApplyLinearImpulse

* MoveRelay fix

* Fix door collisions

* Disable subfloor collisions

Saves on broadphase a fair bit

* Re-implement ClimbController

* Zumzum's pressure

* Laggy item throwing

* Minor atmos change

* Some caching

* Optimise controllers

* Optimise CollideWith to hell and back

* Re-do throwing and tile friction

* Landing too

* Optimise controllers

* Move CCVars and other stuff swept is beautiful

* Cleanup a bunch of controllers

* Fix shooting and high pressure movement controller

* Flashing improvements

* Stuff and things

* Combat collisions

* Combat mode collisions

* Pulling distance joint again

* Cleanup physics interfaces

* More like scuffedularity

* Shit's fucked

* Haha tests go green

* Bigmoneycrab

* Fix dupe pulling

* Zumzum's based fix

* Don't run tile friction for non-predicted bodies

* Experimental pulling improvement

* Everything's a poly now

* Optimise AI region debugging a bit

Could still be better but should improve default performance a LOT

* Mover no updater

* Crazy kinematic body idea

* Good collisions

* KinematicController

* Fix aghost

* Throwing refactor

* Pushing cleanup

* Fix throwing and footstep sounds

* Frametime in ICollideBehavior

* Fix stuff

* Actually fix weightlessness

* Optimise collision behaviors a lot

* Make open lockers still collide with walls

* powwweeerrrrr

* Merge master proper

* AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

* AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

* AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

* Ch ch ch changesss

* SHIP IT

* Fix #if DEBUG

* Fix vaulting and item locker collision

* Fix throwing

* Editing yaml by hand what can go wrong

* on

* Last yaml fixes

* Okay now it's fixed

* Linter

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>
Co-authored-by: Vera Aguilera Puerto <zddm@outlook.es>

Content.Server/GameObjects/EntitySystems/AI/Steering/AiSteeringSystem.cs

@@ -13,6 +13,7 @@ using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Physics;
 using Robust.Shared.Timing;
 using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
@@ -413,7 +414,7 @@ namespace Content.Server.GameObjects.EntitySystems.AI.Steering
             var startTile = gridManager.GetTileRef(entity.Transform.Coordinates);
             var endTile = gridManager.GetTileRef(steeringRequest.TargetGrid);
             var collisionMask = 0;
-            if (entity.TryGetComponent(out IPhysicsComponent physics))
+            if (entity.TryGetComponent(out IPhysBody physics))
             {
                 collisionMask = physics.CollisionMask;
             }
@@ -599,7 +600,7 @@ namespace Content.Server.GameObjects.EntitySystems.AI.Steering
                 return Vector2.Zero;
             }
 
-            if (target.TryGetComponent(out IPhysicsComponent physics))
+            if (target.TryGetComponent(out IPhysBody physics))
             {
                 var targetDistance = (targetPos.Position - entityPos.Position);
                 targetPos = targetPos.Offset(physics.LinearVelocity * targetDistance);
@@ -617,7 +618,7 @@ namespace Content.Server.GameObjects.EntitySystems.AI.Steering
         /// <returns></returns>
         private Vector2 CollisionAvoidance(IEntity entity, Vector2 direction, ICollection<IEntity> ignoredTargets)
         {
-            if (direction == Vector2.Zero || !entity.TryGetComponent(out IPhysicsComponent physics))
+            if (direction == Vector2.Zero || !entity.TryGetComponent(out IPhysBody physics))
             {
                 return Vector2.Zero;
             }
@@ -658,7 +659,7 @@ namespace Content.Server.GameObjects.EntitySystems.AI.Steering
                     // if we're moving in the same direction then ignore
                     // So if 2 entities are moving towards each other and both detect a collision they'll both move in the same direction
                     // i.e. towards the right
-                    if (physicsEntity.TryGetComponent(out IPhysicsComponent otherPhysics) &&
+                    if (physicsEntity.TryGetComponent(out IPhysBody otherPhysics) &&
                         Vector2.Dot(otherPhysics.LinearVelocity, direction) > 0)
                     {
                         continue;