mirror of https://github.com/axmolengine/axmol.git
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
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// MIT License
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// Copyright (c) 2019 Erin Catto
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef B2_CIRCLE_SHAPE_H
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#define B2_CIRCLE_SHAPE_H
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#include "b2_api.h"
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#include "b2_shape.h"
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/// A solid circle shape
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class B2_API b2CircleShape : public b2Shape
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{
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public:
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b2CircleShape();
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/// Implement b2Shape.
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b2Shape* Clone(b2BlockAllocator* allocator) const override;
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/// Implement b2Shape.
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bool TestPoint(const b2Transform& transform, const b2Vec2& p) const override;
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// @see b2Shape::ComputeDistance
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void ComputeDistance(const b2Transform& xf, const b2Vec2& p, float32* distance, b2Vec2* normal) const override;
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/// Implement b2Shape.
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/// @note because the circle is solid, rays that start inside do not hit because the normal is
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/// not defined.
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bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input,
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const b2Transform& transform) const override;
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/// @see b2Shape::ComputeAABB
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void ComputeAABB(b2AABB* aabb, const b2Transform& transform) const override;
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/// @see b2Shape::ComputeMass
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void ComputeMass(b2MassData* massData, float density) const override;
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/// Position
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b2Vec2 m_p;
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};
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inline b2CircleShape::b2CircleShape()
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{
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m_type = e_circle;
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m_radius = 0.0f;
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m_p.SetZero();
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}
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#endif
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