Box2D: /build/box2d/src/box2d-2.4.2/include/box2d/b2_polygon_shape.h Source File

| Box2D 2.4.1 A 2D physics engine for games

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b2_polygon_shape.h
1// MIT License
2
3// Copyright (c) 2019 Erin Catto
4
5// Permission is hereby granted, free of charge, to any person obtaining a copy
6// of this software and associated documentation files (the "Software"), to deal
7// in the Software without restriction, including without limitation the rights
8// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9// copies of the Software, and to permit persons to whom the Software is
10// furnished to do so, subject to the following conditions:
11
12// The above copyright notice and this permission notice shall be included in all
13// copies or substantial portions of the Software.
14
15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21// SOFTWARE.
22#ifndef B2_POLYGON_SHAPE_H
23#define B2_POLYGON_SHAPE_H
24
25#include "b2_api.h"
26#include "b2_shape.h"
27
28struct b2Hull;
29
34 class B2_API b2PolygonShape : public b2Shape
35{
36public:
37 b2PolygonShape();
38
40 b2Shape* Clone(b2BlockAllocator* allocator) const override;
41
43 int32 GetChildCount() const override;
44
50 bool Set(const b2Vec2* points, int32 count);
51
54 void Set(const b2Hull& hull);
55
59 void SetAsBox(float hx, float hy);
60
66 void SetAsBox(float hx, float hy, const b2Vec2& center, float angle);
67
69 bool TestPoint(const b2Transform& transform, const b2Vec2& p) const override;
70
74 bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input,
75 const b2Transform& transform, int32 childIndex) const override;
76
78 void ComputeAABB(b2AABB* aabb, const b2Transform& transform, int32 childIndex) const override;
79
81 void ComputeMass(b2MassData* massData, float density) const override;
82
85 bool Validate() const;
86
87 b2Vec2 m_centroid;
88 b2Vec2 m_vertices[b2_maxPolygonVertices];
89 b2Vec2 m_normals[b2_maxPolygonVertices];
90 int32 m_count;
91};
92
93#endif
b2_maxPolygonVertices
#define b2_maxPolygonVertices
Definition b2_settings.h:53
b2BlockAllocator
Definition b2_block_allocator.h:38
b2PolygonShape
Definition b2_polygon_shape.h:35
b2PolygonShape::TestPoint
bool TestPoint(const b2Transform &transform, const b2Vec2 &p) const override
b2PolygonShape::Validate
bool Validate() const
b2PolygonShape::RayCast
bool RayCast(b2RayCastOutput *output, const b2RayCastInput &input, const b2Transform &transform, int32 childIndex) const override
b2PolygonShape::Set
bool Set(const b2Vec2 *points, int32 count)
b2PolygonShape::GetChildCount
int32 GetChildCount() const override
b2PolygonShape::ComputeMass
void ComputeMass(b2MassData *massData, float density) const override
b2PolygonShape::Set
void Set(const b2Hull &hull)
b2PolygonShape::Clone
b2Shape * Clone(b2BlockAllocator *allocator) const override
Implement b2Shape.
b2PolygonShape::SetAsBox
void SetAsBox(float hx, float hy)
b2PolygonShape::ComputeAABB
void ComputeAABB(b2AABB *aabb, const b2Transform &transform, int32 childIndex) const override
b2PolygonShape::SetAsBox
void SetAsBox(float hx, float hy, const b2Vec2 &center, float angle)
b2Shape
Definition b2_shape.h:49
b2AABB
An axis aligned bounding box.
Definition b2_collision.h:169
b2Hull
Convex hull used for polygon collision.
Definition b2_collision.h:260
b2MassData
This holds the mass data computed for a shape.
Definition b2_shape.h:34
b2RayCastInput
Ray-cast input data. The ray extends from p1 to p1 + maxFraction * (p2 - p1).
Definition b2_collision.h:154
b2RayCastOutput
Definition b2_collision.h:162
b2Transform
Definition b2_math.h:339
b2Vec2
A 2D column vector.
Definition b2_math.h:42