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godotengine
GitHub Repository: godotengine/godot
 Path: blob/master/thirdparty/jolt_physics/Jolt/Physics/Collision/Shape/EmptyShape.cpp
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// 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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#include <Jolt/Jolt.h>

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#include <Jolt/Physics/Collision/Shape/EmptyShape.h>

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#include <Jolt/Physics/Collision/CollisionDispatch.h>

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#include <Jolt/ObjectStream/TypeDeclarations.h>

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#ifdef JPH_DEBUG_RENDERER

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	#include <Jolt/Renderer/DebugRenderer.h>

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#endif // JPH_DEBUG_RENDERER

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JPH_NAMESPACE_BEGIN

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JPH_IMPLEMENT_SERIALIZABLE_VIRTUAL(EmptyShapeSettings)

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{

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	JPH_ADD_BASE_CLASS(EmptyShapeSettings, ShapeSettings)

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	JPH_ADD_ATTRIBUTE(EmptyShapeSettings, mCenterOfMass)

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}

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ShapeSettings::ShapeResult EmptyShapeSettings::Create() const

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{

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	if (mCachedResult.IsEmpty())

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		new EmptyShape(*this, mCachedResult);

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	return mCachedResult;

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}

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MassProperties EmptyShape::GetMassProperties() const

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{

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	MassProperties mass_properties;

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	mass_properties.mMass = 1.0f;

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	mass_properties.mInertia = Mat44::sIdentity();

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	return mass_properties;

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}

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#ifdef JPH_DEBUG_RENDERER

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void EmptyShape::Draw(DebugRenderer *inRenderer, RMat44Arg inCenterOfMassTransform, Vec3Arg inScale, ColorArg inColor, [[maybe_unused]] bool inUseMaterialColors, [[maybe_unused]] bool inDrawWireframe) const

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{

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	inRenderer->DrawMarker(inCenterOfMassTransform.GetTranslation(), inColor, abs(inScale.GetX()) * 0.1f);

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}

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#endif // JPH_DEBUG_RENDERER

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void EmptyShape::sRegister()

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{

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	ShapeFunctions &f = ShapeFunctions::sGet(EShapeSubType::Empty);

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	f.mConstruct = []() -> Shape * { return new EmptyShape; };

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	f.mColor = Color::sBlack;

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	auto collide_empty = []([[maybe_unused]] const Shape *inShape1, [[maybe_unused]] const Shape *inShape2, [[maybe_unused]] Vec3Arg inScale1, [[maybe_unused]] Vec3Arg inScale2, [[maybe_unused]] Mat44Arg inCenterOfMassTransform1, [[maybe_unused]] Mat44Arg inCenterOfMassTransform2, [[maybe_unused]] const SubShapeIDCreator &inSubShapeIDCreator1, [[maybe_unused]] const SubShapeIDCreator &inSubShapeIDCreator2, [[maybe_unused]] const CollideShapeSettings &inCollideShapeSettings, [[maybe_unused]] CollideShapeCollector &ioCollector, [[maybe_unused]] const ShapeFilter &inShapeFilter) { /* Do Nothing */ };

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	auto cast_empty = []([[maybe_unused]] const ShapeCast &inShapeCast, [[maybe_unused]] const ShapeCastSettings &inShapeCastSettings, [[maybe_unused]] const Shape *inShape, [[maybe_unused]] Vec3Arg inScale, [[maybe_unused]] const ShapeFilter &inShapeFilter, [[maybe_unused]] Mat44Arg inCenterOfMassTransform2, [[maybe_unused]] const SubShapeIDCreator &inSubShapeIDCreator1, [[maybe_unused]] const SubShapeIDCreator &inSubShapeIDCreator2, [[maybe_unused]] CastShapeCollector &ioCollector) { /* Do nothing */ };

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	for (const EShapeSubType s : sAllSubShapeTypes)

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	{

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		CollisionDispatch::sRegisterCollideShape(EShapeSubType::Empty, s, collide_empty);

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		CollisionDispatch::sRegisterCollideShape(s, EShapeSubType::Empty, collide_empty);

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		CollisionDispatch::sRegisterCastShape(EShapeSubType::Empty, s, cast_empty);

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		CollisionDispatch::sRegisterCastShape(s, EShapeSubType::Empty, cast_empty);

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	}

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}

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JPH_NAMESPACE_END

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