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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
52 Aabb(const Vector3
& a
, const Vector3
& b
)
57 Aabb(Scalar ax
, Scalar ay
, Scalar az
,
58 Scalar bx
, Scalar by
, Scalar bz
)
60 Vector3
a(ax
, ay
, az
);
61 Vector3
b(bx
, by
, bz
);
66 void init(const Vector3
& a
, const Vector3
& b
)
100 Vector3
getCenter() const
102 return Vector3((min
[0] + max
[0]) / 2.0,
103 (min
[1] + max
[1]) / 2.0,
104 (min
[2] + max
[2]) / 2.0);
107 void getOctant(Aabb
& octant
, int num
) const;
109 Plane
getPlaneXY() const
112 plane
.normal
= Vector3(0.0, 0.0, 1.0);
113 plane
.d
= cml::dot(-plane
.normal
, getCenter());
117 Plane
getPlaneXZ() const
120 plane
.normal
= Vector3(0.0, 1.0, 0.0);
121 plane
.d
= cml::dot(-plane
.normal
, getCenter());
125 Plane
getPlaneYZ() const
128 plane
.normal
= Vector3(1.0, 0.0, 0.0);
129 plane
.d
= cml::dot(-plane
.normal
, getCenter());
133 void getCorners(Vector3 corners
[8]) const;
135 void encloseVertices(const Vector3 vertices
[], unsigned count
);
137 void draw(Scalar alpha
= 0.0) const;
138 bool isVisible(const Frustum
& frustum
) const;
144 #endif // _MOOF_AABB_HH_
146 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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