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Diffstat (limited to 'Client/ThirdParty/Box2D/include/box2d/b2_edge_shape.h')
| -rw-r--r-- | Client/ThirdParty/Box2D/include/box2d/b2_edge_shape.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Client/ThirdParty/Box2D/include/box2d/b2_edge_shape.h b/Client/ThirdParty/Box2D/include/box2d/b2_edge_shape.h new file mode 100644 index 0000000..b930ee8 --- /dev/null +++ b/Client/ThirdParty/Box2D/include/box2d/b2_edge_shape.h @@ -0,0 +1,86 @@ +// 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" + +/// A line segment (edge) shape. These can be connected in chains or loops +/// to other edge shapes. Edges created independently are two-sided and do +/// no provide smooth movement across junctions. +class B2_API b2EdgeShape : public b2Shape +{ +public: + b2EdgeShape(); + + /// Set this as a part of a sequence. Vertex v0 precedes the edge and vertex v3 + /// follows. These extra vertices are used to provide smooth movement + /// across junctions. This also makes the collision one-sided. The edge + /// normal points to the right looking from v1 to v2. + void SetOneSided(const b2Vec2& v0, const b2Vec2& v1,const b2Vec2& v2, const b2Vec2& v3); + + /// Set this as an isolated edge. Collision is two-sided. + void SetTwoSided(const b2Vec2& v1, const b2Vec2& v2); + + /// Implement b2Shape. + b2Shape* Clone(b2BlockAllocator* allocator) const override; + + /// @see b2Shape::GetChildCount + int32 GetChildCount() const override; + + /// @see b2Shape::TestPoint + bool TestPoint(const b2Transform& transform, const b2Vec2& p) const override; + + /// Implement b2Shape. + bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input, + const b2Transform& transform, int32 childIndex) const override; + + /// @see b2Shape::ComputeAABB + void ComputeAABB(b2AABB* aabb, const b2Transform& transform, int32 childIndex) const override; + + /// @see b2Shape::ComputeMass + void ComputeMass(b2MassData* massData, float density) const override; + + /// These are the edge vertices + b2Vec2 m_vertex1, m_vertex2; + + /// Optional adjacent vertices. These are used for smooth collision. + b2Vec2 m_vertex0, m_vertex3; + + /// Uses m_vertex0 and m_vertex3 to create smooth collision. + 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 |