JoltPhysics/Samples/Tests/Vehicle/MotorcycleTest.h

// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2023 Jorrit Rouwe
// SPDX-License-Identifier: MIT

#pragma once

#include <Tests/Vehicle/VehicleTest.h>
#include <Jolt/Physics/Vehicle/VehicleConstraint.h>

class MotorcycleTest : public VehicleTest
{
public:
	JPH_DECLARE_RTTI_VIRTUAL(JPH_NO_EXPORT, MotorcycleTest)

	// Description of the test
	virtual const char *		GetDescription() const override
	{
		return	"This test shows how a motorcycle could be made with the vehicle constraint.\n"
				"Use the arrow keys to drive. Z for hand brake.";
	}

	// Destructor
	virtual						~MotorcycleTest() override;

	// See: Test
	virtual void				Initialize() override;
	virtual void				ProcessInput(const ProcessInputParams &inParams) override;
	virtual void				PrePhysicsUpdate(const PreUpdateParams &inParams) override;
	virtual void				SaveInputState(StateRecorder &inStream) const override;
	virtual void				RestoreInputState(StateRecorder &inStream) override;

	virtual void				GetInitialCamera(CameraState &ioState) const override;
	virtual RMat44				GetCameraPivot(float inCameraHeading, float inCameraPitch) const override { return mCameraPivot; }

	virtual void				CreateSettingsMenu(DebugUI *inUI, UIElement *inSubMenu) override;

private:
	void						UpdateCameraPivot();

	static inline bool			sOverrideFrontSuspensionForcePoint = false;	///< If true, the front suspension force point is overridden
	static inline bool			sOverrideRearSuspensionForcePoint = false;	///< If true, the rear suspension force point is overridden
	static inline bool			sEnableLeanController = true;				///< If true, the lean controller is enabled
	static inline bool			sOverrideGravity = false;					///< If true, gravity is overridden to always oppose the ground normal

	Body *						mMotorcycleBody;							///< The vehicle
	Ref<VehicleConstraint>		mVehicleConstraint;							///< The vehicle constraint
	RMat44						mCameraPivot = RMat44::sIdentity();			///< The camera pivot, recorded before the physics update to align with the drawn world

	// Player input
	float						mForward = 0.0f;
	float						mPreviousForward = 1.0f;					///< Keeps track of last motorcycle direction so we know when to brake and when to accelerate
	float						mRight = 0.0f;								///< Keeps track of the current steering angle
	float						mBrake = 0.0f;
};