61 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			61 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
| /*
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| * Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
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| *
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| * This software is provided 'as-is', without any express or implied
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| * warranty.  In no event will the authors be held liable for any damages
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| * arising from the use of this software.
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| * Permission is granted to anyone to use this software for any purpose,
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| * including commercial applications, and to alter it and redistribute it
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| * freely, subject to the following restrictions:
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| * 1. The origin of this software must not be misrepresented; you must not
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| * claim that you wrote the original software. If you use this software
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| * in a product, an acknowledgment in the product documentation would be
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| * appreciated but is not required.
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| * 2. Altered source versions must be plainly marked as such, and must not be
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| * misrepresented as being the original software.
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| * 3. This notice may not be removed or altered from any source distribution.
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| */
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| 
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| #ifndef B2_CIRCLE_SHAPE_H
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| #define B2_CIRCLE_SHAPE_H
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| 
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| #include "Box2D/Collision/Shapes/b2Shape.h"
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| 
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| /// A circle shape.
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| class b2CircleShape : public b2Shape
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| {
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| public:
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| 	b2CircleShape();
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| 
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| 	/// Implement b2Shape.
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| 	b2Shape* Clone(b2BlockAllocator* allocator) const override;
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| 
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| 	/// @see b2Shape::GetChildCount
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| 	int32 GetChildCount() const override;
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| 
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| 	/// Implement b2Shape.
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| 	bool TestPoint(const b2Transform& transform, const b2Vec2& p) const override;
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| 
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| 	/// Implement b2Shape.
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| 	bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input,
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| 				const b2Transform& transform, int32 childIndex) const override;
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| 
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| 	/// @see b2Shape::ComputeAABB
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| 	void ComputeAABB(b2AABB* aabb, const b2Transform& transform, int32 childIndex) const override;
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| 
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| 	/// @see b2Shape::ComputeMass
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| 	void ComputeMass(b2MassData* massData, float32 density) const override;
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| 
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| 	/// Position
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| 	b2Vec2 m_p;
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| };
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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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| 
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| #endif
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