89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
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// SPDX-FileCopyrightText: 2024 Jorrit Rouwe
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <Tests/Test.h>
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#include <Jolt/Physics/Collision/ContactListener.h>
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class BoatTest : public Test, public ContactListener
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{
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public:
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JPH_DECLARE_RTTI_VIRTUAL(JPH_NO_EXPORT, BoatTest)
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// Description of the test
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virtual const char * GetDescription() const override
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{
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return "Shows how a boat could be constructed and how waves could be simulated.";
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}
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// If this test implements a contact listener, it should be returned here
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virtual ContactListener * GetContactListener() override { return this; }
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// See: Test
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virtual void Initialize() override;
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virtual void ProcessInput(const ProcessInputParams &inParams) override;
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virtual void PrePhysicsUpdate(const PreUpdateParams &inParams) override;
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virtual void SaveInputState(StateRecorder &inStream) const override;
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virtual void RestoreInputState(StateRecorder &inStream) override;
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virtual void SaveState(StateRecorder &inStream) const override;
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virtual void RestoreState(StateRecorder &inStream) override;
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virtual void GetInitialCamera(CameraState &ioState) const override;
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virtual RMat44 GetCameraPivot(float inCameraHeading, float inCameraPitch) const override { return mCameraPivot; }
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// See: ContactListener
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virtual void OnContactAdded(const Body &inBody1, const Body &inBody2, const ContactManifold &inManifold, ContactSettings &ioSettings) override;
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virtual void OnContactRemoved(const SubShapeIDPair &inSubShapePair) override;
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private:
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void UpdateCameraPivot();
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// Determines the water surface position at a given XZ position
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RVec3 GetWaterSurfacePosition(RVec3Arg inXZPosition) const;
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// Configuration
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static constexpr float cMaxWaterHeight = 5.0f;
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static constexpr float cMinWaterHeight = 3.0f;
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static constexpr float cWaterWidth = 100.0f;
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static constexpr float cHalfBoatLength = 4.0f;
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static constexpr float cHalfBoatTopWidth = 1.5f;
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static constexpr float cHalfBoatBottomWidth = 1.2f;
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static constexpr float cBoatBowLength = 2.0f;
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static constexpr float cHalfBoatHeight = 0.75f;
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static constexpr float cBoatMass = 1000.0f;
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static constexpr float cBoatBuoyancy = 3.0f;
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static constexpr float cBoatLinearDrag = 0.5f;
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static constexpr float cBoatAngularDrag = 0.7f;
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static constexpr float cBarrelMass = 50.0f;
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static constexpr float cBarrelBuoyancy = 1.5f;
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static constexpr float cBarrelLinearDrag = 0.5f;
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static constexpr float cBarrelAngularDrag = 0.1f;
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static constexpr float cForwardAcceleration = 15.0f;
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static constexpr float cSteerAcceleration = 1.5f;
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// The boat
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Body * mBoatBody;
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// The sensor that detects objects in the water
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BodyID mWaterSensor;
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// The camera pivot, recorded before the physics update to align with the drawn world
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RMat44 mCameraPivot = RMat44::sIdentity();
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// Keeping track of which bodies are in the water
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Mutex mBodiesInWaterMutex;
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BodyIDVector mBodiesInWater;
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// Time
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float mTime = 0.0f;
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// Player input
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float mForward = 0.0f;
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float mRight = 0.0f;
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};
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