Colobot
sphere.h
1 /*
2  * This file is part of the Colobot: Gold Edition source code
3  * Copyright (C) 2001-2016, Daniel Roux, EPSITEC SA & TerranovaTeam
4  * http://epsitec.ch; http://colobot.info; http://github.com/colobot
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14  * See the GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program. If not, see http://gnu.org/licenses
18  */
19 
20 #pragma once
21 
22 #include "math/vector.h"
23 
24 namespace Math
25 {
26 
27 struct Sphere
28 {
29  Sphere(const Vector& pos = Vector(), float radius = 0.0f)
30  : pos(pos), radius(radius) {}
31 
32  Vector pos;
33  float radius;
34 };
35 
37 inline float DistanceToSphere(const Vector& point, const Sphere& sphere)
38 {
39  return Math::Distance(point, sphere.pos) - sphere.radius;
40 }
41 
42 inline float DistanceBetweenSpheres(const Sphere& sphere1, const Sphere& sphere2)
43 {
44  return Math::Distance(sphere1.pos, sphere2.pos) - sphere1.radius - sphere2.radius;
45 }
46 
47 } // namespace Math
float Distance(const Point &a, const Point &b)
Returns the distance between two points.
Definition: point.h:190
float DistanceToSphere(const Vector &point, const Sphere &sphere)
Compute distance between given point and sphere.
Definition: sphere.h:37
Namespace for (new) math code.
Definition: device.h:39
Vector struct and related functions.
3D (3x1) vector
Definition: vector.h:53
Definition: sphere.h:27