b2_edge_shape.h

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// MIT License

// Copyright (c) 2019 Erin Catto

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#ifndef B2_EDGE_SHAPE_H
#define B2_EDGE_SHAPE_H

#include "b2_api.h"
#include "b2_shape.h"

class B2_API b2EdgeShape : public b2Shape
{
public:
        b2EdgeShape();

        void SetOneSided(const b2Vec2& v0, const b2Vec2& v1,const b2Vec2& v2, const b2Vec2& v3);

        void SetTwoSided(const b2Vec2& v1, const b2Vec2& v2);

        b2Shape* Clone(b2BlockAllocator* allocator) const override;

        int32 GetChildCount() const override;

        bool TestPoint(const b2Transform& transform, const b2Vec2& p) const override;

        bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input,
                                const b2Transform& transform, int32 childIndex) const override;

        void ComputeAABB(b2AABB* aabb, const b2Transform& transform, int32 childIndex) const override;

        void ComputeMass(b2MassData* massData, float density) const override;

        b2Vec2 m_vertex1, m_vertex2;

        b2Vec2 m_vertex0, m_vertex3;

        bool m_oneSided;
};

inline b2EdgeShape::b2EdgeShape()
{
        m_type = e_edge;
        m_radius = b2_polygonRadius;
        m_vertex0.x = 0.0f;
        m_vertex0.y = 0.0f;
        m_vertex3.x = 0.0f;
        m_vertex3.y = 0.0f;
        m_oneSided = false;
}

#endif