1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
*
* Utility library to define some global function for geometric calculations
*
*/
#ifndef _ACORE_GEOMETRY_H
#define _ACORE_GEOMETRY_H
#include <cstdlib>
#include <math.h>
[[nodiscard]] inline float getAngle(float startX, float startY, float destX, float destY)
{
auto dx = destX - startX;
auto dy = destY - startY;
auto ang = std::atan2(dy, dx);
ang = (ang >= 0) ? ang : 2 * float(M_PI) + ang;
return ang;
}
[[nodiscard]] inline float getSlopeAngle(float startX, float startY, float startZ, float destX, float destY, float destZ)
{
float floorDist = std::sqrt(pow(startY - destY, 2.0f) + pow(startX - destX, 2.0f));
return atan(std::abs(destZ - startZ) / std::abs(floorDist));
}
[[nodiscard]] inline float getSlopeAngleAbs(float startX, float startY, float startZ, float destX, float destY, float destZ)
{
return std::abs(getSlopeAngle(startX, startY, startZ, destX, destY, destZ));
}
[[nodiscard]] inline double getCircleAreaByRadius(double radius)
{
return radius * radius * M_PI;
}
[[nodiscard]] inline double getCirclePerimeterByRadius(double radius)
{
return radius * M_PI;
}
[[nodiscard]] inline double getCylinderVolume(double height, double radius)
{
return height * getCircleAreaByRadius(radius);
}
#endif // _ACORE_GEOMETRY_H
|
