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Prevent pull-moving (#20502)

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This commit is contained in:
Kevin Zheng
2023-09-25 18:21:31 -08:00
committed by GitHub
parent f8e26ed2c3
commit e4de2fdd6c
1 changed files with 5 additions and 2 deletions
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7
Content.Server/Physics/Controllers/PullController.cs
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@@ -1,4 +1,5 @@
using System.Numerics;
using Content.Shared.ActionBlocker;
using Content.Shared.Gravity;
using Content.Shared.Pulling;
using Content.Shared.Pulling.Components;
@@ -37,6 +38,7 @@ namespace Content.Server.Physics.Controllers
// How much you must move for the puller movement check to actually hit.
private const float MinimumMovementDistance = 0.005f;
[Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
[Dependency] private readonly SharedPullingSystem _pullableSystem = default!;
[Dependency] private readonly SharedGravitySystem _gravity = default!;
[Dependency] private readonly SharedTransformSystem _transform = default!;
@@ -191,9 +193,10 @@ namespace Content.Server.Physics.Controllers
var impulse = accel * physics.Mass * frameTime;
PhysicsSystem.ApplyLinearImpulse(pullableEnt, impulse, body: physics);
// if the puller is weightless, then we apply the inverse impulse.
// if the puller is weightless or can't move, then we apply the inverse impulse (Newton's third law).
// doing it under gravity produces an unsatisfying wiggling when pulling.
if (_gravity.IsWeightless(puller) && pullerXform.GridUid == null)
// If player can't move, assume they are on a chair and we need to prevent pull-moving.
if ((_gravity.IsWeightless(puller) && pullerXform.GridUid == null) || !_actionBlockerSystem.CanMove(puller))
{
PhysicsSystem.WakeBody(puller);
PhysicsSystem.ApplyLinearImpulse(puller, -impulse);