Angel 3.2
A 2D Game Prototyping Engine
BoundingShapes.h
1 
2 // Copyright (C) 2008-2013, Shane Liesegang
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29 
30 #pragma once
31 
32 #include "../Infrastructure/Vector2.h"
33 
34 struct Ray2;
35 
36 enum ContainmentType
37 {
38  Disjoint,
39  Within,
40  Intersects
41 };
42 
44 {
45  Vector2 Min;
46  Vector2 Max;
47 
48  BoundingBox(const Vector2& min, const Vector2& max);
49  BoundingBox() {}
50 
51  Vector2 Centroid() const;
52  Vector2 HalfLength() const;
53 
54  static BoundingBox CreateMerged(const BoundingBox& original, const BoundingBox& additional);
55 
56  void GetCorners(Vector2 corners[]) const;
57  static BoundingBox CreateFromPoints(Vector2 points[], int count);
58 
59  bool Intersects(const BoundingBox& box) const;
60  bool Intersects(const Ray2& ray, float& distanceAlongRay) const;
61  bool Intersects(const Vector2& point, float radius) const;
62 
63  ContainmentType Contains(const BoundingBox& box) const;
64  bool Contains(const Vector2& point) const;
65 
66  void RenderOutline() const;
67  void RenderBox() const;
68 };
69 
70 
71 bool operator ==(const BoundingBox& a, const BoundingBox& b);
72 bool operator !=(const BoundingBox& a, const BoundingBox& b);
73