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Dogcows Code - chaz/yoink/blob - src/Moof/Aabb.hh
2 /*******************************************************************************
4 Copyright (c) 2009, Charles McGarvey
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 * Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *******************************************************************************/
29 #ifndef _MOOF_AABB_HH_
30 #define _MOOF_AABB_HH_
32 #include <Moof/Cullable.hh>
33 #include <Moof/Drawable.hh>
34 #include <Moof/Math.hh>
35 #include <Moof/Plane.hh>
42 * Axis-aligned Bounding Box
45 struct Aabb
: public Cullable
, public Drawable
53 Aabb(const Vector3
& a
, const Vector3
& b
)
58 Aabb(Scalar ax
, Scalar ay
, Scalar az
,
59 Scalar bx
, Scalar by
, Scalar bz
)
61 Vector3
a(ax
, ay
, az
);
62 Vector3
b(bx
, by
, bz
);
67 inline void init(const Vector3
& a
, const Vector3
& b
)
101 inline Vector3
getCenter() const
103 return Vector3((min
[0] + max
[0]) / 2.0,
104 (min
[1] + max
[1]) / 2.0,
105 (min
[2] + max
[2]) / 2.0);
108 void getOctant(Aabb
& octant
, int num
) const;
110 inline Plane
getPlaneXY() const
113 plane
.normal
= Vector3(0.0, 0.0, 1.0);
114 plane
.d
= cml::dot(-plane
.normal
, getCenter());
118 inline Plane
getPlaneXZ() const
121 plane
.normal
= Vector3(0.0, 1.0, 0.0);
122 plane
.d
= cml::dot(-plane
.normal
, getCenter());
126 inline Plane
getPlaneYZ() const
129 plane
.normal
= Vector3(1.0, 0.0, 0.0);
130 plane
.d
= cml::dot(-plane
.normal
, getCenter());
134 void getCorners(Vector3 corners
[8]) const;
136 void encloseVertices(const Vector3 vertices
[], unsigned count
);
138 void draw(Scalar alpha
= 0.0) const;
139 bool isVisible(const Camera
& cam
) const;
145 #endif // _MOOF_AABB_HH_
147 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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