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22 
23 #pragma once
24 
25 #include "../Urho2D/CollisionShape2D.h"
26 
27 namespace Urho3D
28 {
29 
30 /// 2D polygon collision component.
31 class URHO3D_API CollisionPolygon2D : public CollisionShape2D
32 {
33     URHO3D_OBJECT(CollisionPolygon2D, CollisionShape2D);
34 
35 public:
36     /// Construct.
37     CollisionPolygon2D(Context* context);
38     /// Destruct.
39     virtual ~CollisionPolygon2D();
40     /// Register object factory.
41     static void RegisterObject(Context* context);
42 
43     /// Set vertex count.
44     void SetVertexCount(unsigned count);
45     /// Set vertex.
46     void SetVertex(unsigned index, const Vector2& vertex);
47     /// Set vertices.
48     void SetVertices(const PODVector<Vector2>& vertices);
49 
50     /// Return vertex count.
GetVertexCount()51     unsigned GetVertexCount() const { return vertices_.Size(); }
52 
53     /// Return vertex.
GetVertex(unsigned index)54     const Vector2& GetVertex(unsigned index) const { return (index < vertices_.Size()) ? vertices_[index] : Vector2::ZERO; }
55 
56     /// Return vertices.
GetVertices()57     const PODVector<Vector2>& GetVertices() const { return vertices_; }
58 
59     /// Set vertices attribute.
60     void SetVerticesAttr(const PODVector<unsigned char>& value);
61     /// Return vertices attribute.
62     PODVector<unsigned char> GetVerticesAttr() const;
63 
64 private:
65     /// Apply node world scale.
66     virtual void ApplyNodeWorldScale();
67     /// Recreate fixture.
68     void RecreateFixture();
69 
70     /// Polygon shape.
71     b2PolygonShape polygonShape_;
72     /// Vertices.
73     PODVector<Vector2> vertices_;
74 };
75 
76 }
77