initial working frustum culling implementation

[chaz/yoink] / src / Moof / Sphere.hh

diff --git a/src/Moof/Sphere.hh b/src/Moof/Sphere.hh
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+
+/*******************************************************************************
+
+ 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.
+
+*******************************************************************************/
+
+#ifndef _MOOF_SPHERE_HH_
+#define _MOOF_SPHERE_HH_
+
+#include <Moof/Cullable.hh>
+#include <Moof/Drawable.hh>
+#include <Moof/Math.hh>
+
+
+namespace Mf {
+
+
+/**
+ * Axis-aligned Bounding Box
+ */
+
+struct Sphere : public Cullable, public Drawable
+{
+       Vector3 point;
+       Scalar  radius;
+
+       Sphere() {}
+
+       Sphere(const Vector3& p, Scalar r) :
+               point(p),
+               radius(r) {}
+
+       Sphere(Scalar x, Scalar y, Scalar z, Scalar r) :
+               point(x, y, z),
+               radius(r) {}
+
+       inline void init(const Vector3& p, Scalar r)
+       {
+               point = p;
+               radius = r;
+       }
+
+       void encloseVertices(const Vector3 vertices[], unsigned count);
+
+       void draw(Scalar alpha = 0.0) const;
+       bool isVisible(const Camera& cam) const;
+};
+
+
+} // namespace Mf
+
+#endif // _MOOF_SPHERE_HH_
+
+/** vim: set ts=4 sw=4 tw=80: *************************************************/
+