-/*******************************************************************************
-
- Copyright (c) 2009, Charles McGarvey
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-*******************************************************************************/
+/*] Copyright (c) 2009-2010, Charles McGarvey [**************************
+**] All rights reserved.
+*
+* vi:ts=4 sw=4 tw=75
+*
+* Distributable under the terms and conditions of the 2-clause BSD license;
+* see the file COPYING for a complete text of the license.
+*
+**************************************************************************/
#ifndef _MOOF_AABB_HH_
#define _MOOF_AABB_HH_
+#include <Moof/Cullable.hh>
#include <Moof/Drawable.hh>
#include <Moof/Math.hh>
+#include <Moof/Plane.hh>
+#include <Moof/Shape.hh>
+
+#include <Moof/Frustum.hh> // FIXME this file is quite broken
+#include <Moof/OpenGL.hh>
+#include <Moof/Texture.hh>
namespace Mf {
* Axis-aligned Bounding Box
*/
-struct Aabb : public Drawable
+template <int D = 3>
+struct Aabb : public Cullable, public Drawable, public Shape<D>
{
- Vector3 min;
- Vector3 max;
+ typedef cml::vector< Scalar, cml::fixed<D> > Vector;
+ Vector min;
+ Vector max;
Aabb() {}
- Aabb(const Vector3& a, const Vector3& b)
+ Aabb(const Vector& a, const Vector& b)
{
init(a, b);
}
Aabb(Scalar ax, Scalar ay, Scalar az,
Scalar bx, Scalar by, Scalar bz)
{
- Vector3 a(ax, ay, az);
- Vector3 b(bx, by, bz);
+ Vector a(ax, ay, az);
+ Vector b(bx, by, bz);
init(a, b);
}
- inline void init(const Vector3& a, const Vector3& b)
+ void init(const Vector& a, const Vector& b)
{
if (a[0] < b[0])
{
}
}
- inline Vector3 getCenter() const
+ Vector getCenter() const
{
- return Vector3((min[0] + max[0]) / 2.0,
+ return Vector((min[0] + max[0]) / 2.0,
(min[1] + max[1]) / 2.0,
(min[2] + max[2]) / 2.0);
}
- void draw(Scalar alpha) const;
+ //void getOctant(Aabb& octant, int num) const;
+
+ Plane getPlaneXY() const
+ {
+ Plane plane;
+ plane.normal = Vector(0.0, 0.0, 1.0);
+ plane.d = cml::dot(-plane.normal, getCenter());
+ return plane;
+ }
+
+ Plane getPlaneXZ() const
+ {
+ Plane plane;
+ plane.normal = Vector(0.0, 1.0, 0.0);
+ plane.d = cml::dot(-plane.normal, getCenter());
+ return plane;
+ }
+
+ Plane getPlaneYZ() const
+ {
+ Plane plane;
+ plane.normal = Vector(1.0, 0.0, 0.0);
+ plane.d = cml::dot(-plane.normal, getCenter());
+ return plane;
+ }
+
+ /*
+ void getCorners(Vector3 corners[8]) const;
+
+ void encloseVertices(const Vector3 vertices[], unsigned count);
+
+ void draw(Scalar alpha = 0.0) const;
+ bool isVisible(const Frustum& frustum) const;
+ */
+
+
+ void getCorners(Vector corners[8]) const
+ {
+ corners[0][0] = min[0];
+ corners[0][1] = min[1];
+ corners[0][2] = max[2];
+ corners[1][0] = max[0];
+ corners[1][1] = min[1];
+ corners[1][2] = max[2];
+ corners[2][0] = max[0];
+ corners[2][1] = max[1];
+ corners[2][2] = max[2];
+ corners[3][0] = min[0];
+ corners[3][1] = max[1];
+ corners[3][2] = max[2];
+ corners[4][0] = min[0];
+ corners[4][1] = min[1];
+ corners[4][2] = min[2];
+ corners[5][0] = max[0];
+ corners[5][1] = min[1];
+ corners[5][2] = min[2];
+ corners[6][0] = max[0];
+ corners[6][1] = max[1];
+ corners[6][2] = min[2];
+ corners[7][0] = min[0];
+ corners[7][1] = max[1];
+ corners[7][2] = min[2];
+ }
+
+
+ void encloseVertices(const Vector vertices[], unsigned count)
+ {
+ min.zero();
+ max.zero();
+
+ for (unsigned i = 1; i < count; ++i)
+ {
+ min.minimize(vertices[i]);
+ max.maximize(vertices[i]);
+ }
+ }
+
+
+ void draw(Scalar alpha = 0.0) const
+ {
+ Scalar vertices[] = {min[0], min[1], min[2],
+ min[0], max[1], min[2],
+ max[0], max[1], min[2],
+ max[0], min[1], min[2],
+ min[0], max[1], max[2],
+ min[0], min[1], max[2],
+ max[0], min[1], max[2],
+ max[0], max[1], max[2]};
+
+ GLubyte indices[] = {0, 1, 2, 3,
+ 1, 2, 7, 4,
+ 3, 0, 5, 6,
+ 2, 3, 6, 7,
+ 5, 0, 1, 4,
+ 4, 5, 6, 7};
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(3, GL_SCALAR, 0, vertices);
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ Texture::resetBind();
+
+ glDrawElements(GL_QUADS, sizeof(indices), GL_UNSIGNED_BYTE,
+ indices);
+
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ //glDisableClientState(GL_VERTEX_ARRAY);
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+ }
+
+ bool isVisible(const Frustum& frustum) const
+ {
+ return frustum.contains(*this);
+ }
};
#endif // _MOOF_AABB_HH_
-/** vim: set ts=4 sw=4 tw=80: *************************************************/
-
projects / chaz / yoink / blobdiff