Vector min;
Vector max;
+
Aabb() {}
Aabb(const Vector& a, const Vector& b)
init(a, b);
}
- Aabb(Scalar ax, Scalar ay, Scalar az,
- Scalar bx, Scalar by, Scalar bz)
+ Aabb(Scalar x1, Scalar y1, Scalar x2, Scalar y2)
{
- Vector a(ax, ay, az);
- Vector b(bx, by, bz);
+ Vector a(x1, y1);
+ Vector b(x2, y2);
init(a, b);
}
- void init(const Vector& a, const Vector& b)
+ Aabb(Scalar x1, Scalar y1, Scalar z1, Scalar x2, Scalar y2, Scalar z2)
+ {
+ Vector a(x1, y1, z1);
+ Vector b(x2, y2, z2);
+
+ init(a, b);
+ }
+
+
+ void init(const Vector2& a, const Vector2& b)
+ {
+ if (a[0] < b[0])
+ {
+ min[0] = a[0];
+ max[0] = b[0];
+ }
+ else
+ {
+ min[0] = b[0];
+ max[0] = a[0];
+ }
+ if (a[1] < b[1])
+ {
+ min[1] = a[1];
+ max[1] = b[1];
+ }
+ else
+ {
+ min[1] = b[1];
+ max[1] = a[1];
+ }
+ }
+
+ void init(const Vector3& a, const Vector3& b)
{
if (a[0] < b[0])
{
}
}
+
Vector getCenter() const
{
- return Vector((min[0] + max[0]) / 2.0,
- (min[1] + max[1]) / 2.0,
- (min[2] + max[2]) / 2.0);
+ return (min + max) / 2.0;
}
- //void getOctant(Aabb& octant, int num) const;
Plane getPlaneXY() const
{
Plane plane;
- plane.normal = Vector(0.0, 0.0, 1.0);
+ plane.normal = Vector3(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.normal = Vector3(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.normal = Vector3(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(Vector2 corners[4]) const
+ {
+ corners[0][0] = min[0]; corners[0][1] = min[1];
+ corners[1][0] = max[0]; corners[1][1] = min[1];
+ corners[2][0] = max[0]; corners[2][1] = max[1];
+ corners[3][0] = min[0]; corners[3][1] = max[1];
+ }
- void getCorners(Vector corners[8]) const
+ void getCorners(Vector3 corners[8]) const
{
corners[0][0] = min[0];
corners[0][1] = min[1];
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);
+ glRect(min[0], min[1], max[0], max[1]);
}
bool isVisible(const Frustum& frustum) const
{
- return frustum.contains(*this);
+ return true;
}
};
+template <>
+inline void Aabb<3>::draw(Scalar alpha) 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);
+}
+
+template <>
+inline bool Aabb<3>::isVisible(const Frustum& frustum) const
+{
+ return frustum.contains(*this);
+}
+
+
+typedef Aabb<2> Aabb2;
+typedef Aabb2 Rectangle;
+typedef Aabb<3> Aabb3;
+
+
} // namespace Mf
#endif // _MOOF_AABB_HH_