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/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
*/
/**
*
* Utility library to define some global function for geometric calculations
*
*/
#ifndef _ACORE_GEOMETRY_H
#define _ACORE_GEOMETRY_H
#include "Define.h"
#include <cstdlib>
#include <iostream>
#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 = 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 = sqrt(pow(startY - destY, 2.0f) + pow(startX - destX, 2.0f));
return atan(abs(destZ - startZ) / abs(floorDist));
}
[[nodiscard]] inline float getSlopeAngleAbs(float startX, float startY, float startZ, float destX, float destY, float destZ)
{
return 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
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