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- // SPDX-FileCopyrightText: 2021 Jorrit Rouwe
- // SPDX-License-Identifier: MIT
- #pragma once
- namespace JPH {
- class PhysicsSystem;
- /// A listener class that receives a callback before every physics simulation step
- class PhysicsStepListener
- {
- public:
- /// Ensure virtual destructor
- virtual ~PhysicsStepListener() = default;
- /// Called before every simulation step (received inCollisionSteps times for every PhysicsSystem::Update(...) call)
- /// This is called while all bodies and constraints are locked for modifications. Multiple listeners can be executed in parallel and it is the responsibility of the listener
- /// to avoid race conditions.
- /// Note that this function is not called if there aren't any active bodies or when the physics system is updated with 0 delta time.
- virtual void OnStep(float inDeltaTime, PhysicsSystem &inPhysicsSystem) = 0;
- };
- } // JPH
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