92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
#pragma once
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#include <J3ML/Geometry/Common.h>
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#include <J3ML/Geometry/Shape.h>
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#include <vector>
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#include <J3ML/LinearAlgebra/Vector3.h>
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namespace J3ML::Geometry
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{
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using namespace J3ML::LinearAlgebra;
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// Represents a three-dimensional closed geometric solid defined by flat polygonal faces.
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class Polyhedron : public Shape
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{
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public:
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// Stores a list of indices of a single face of a Polygon
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struct Face
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{
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// Specifies the indices of the corner vertices of the polyhedron.
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// Indices point to the polyhedron vertex array.
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// The face vertices should all lie on the same plane.
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// The positive direction of the plane (the direction the face outwards normal points)
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// is the one where the vertices are wound in counter-clockwise order.
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std::vector<int> v;
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// Reverses the winding order of this face. This has the effect of reversing the direction
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// the normal of this face points to.
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void FlipWindingOrder();
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};
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// Specifies the vertices of this polyhedron.
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std::vector<Vector3> v;
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std::vector<Face> f;
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int NumVertices() const {return (int)v.size();}
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int NumFaces() const { return (int)f.size();}
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AABB MinimalEnclosingAABB() const;
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Vector3 Vertex(int vertexIndex) const;
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bool Intersects(const LineSegment&) const;
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bool Contains(const Vector3&) const;
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bool Contains(const LineSegment&) const;
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bool Contains(const Triangle&) const;
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bool Contains(const Polygon&) const;
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bool Contains(const AABB&) const;
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bool Contains(const OBB&) const;
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bool Contains(const Frustum&) const;
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bool Contains(const Polyhedron&) const;
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bool ContainsConvex(const Vector3&, float epsilon = 1e-4f) const;
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bool ContainsConvex(const LineSegment&) const;
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bool ContainsConvex(const Triangle&) const;
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bool Intersects(const Ray&) const;
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bool Intersects(const Plane&) const;
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bool Intersects(const Polyhedron&) const;
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bool Intersects(const AABB&) const;
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bool Intersects(const OBB&) const;
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bool Intersects(const Triangle&) const;
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bool Intersects(const Polygon&) const;
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bool Intersects(const Frustum&) const;
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bool Intersects(const Sphere&) const;
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bool Intersects(const Capsule&) const;
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float FaceContainmentDistance2D(int i, Vector3 vector3) const;
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bool IsClosed() const;
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Plane FacePlane(int faceIndex) const;
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std::vector<Polygon> Faces() const;
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int NumEdges() const;
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LineSegment Edge(int edgeIndex) const;
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std::vector<std::pair<int, int>> EdgeIndices() const;
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std::vector<LineSegment> Edges() const;
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Polygon FacePolygon(int faceIndex) const;
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bool IsConvex() const;
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protected:
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private:
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};
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} |