mirror of
https://github.com/cjcliffe/CubicSDR.git
synced 2024-11-26 21:58:37 -05:00
35 lines
833 B
C
35 lines
833 B
C
|
//
|
||
|
|
// sphere.h
|
||
|
|
// CubicVR2
|
||
|
|
//
|
||
|
|
// Created by Charles J. Cliffe on 2013-02-22.
|
||
|
|
// Copyright (c) 2013 Charles J. Cliffe. All rights reserved.
|
||
|
|
//
|
||
|
|
|
||
|
|
#ifndef CubicVR2_sphere_h
|
||
|
|
#define CubicVR2_sphere_h
|
||
|
|
|
||
|
|
#include "vec3.h"
|
||
|
|
#include "vec4.h"
|
||
|
|
|
||
|
|
namespace CubicVR {
|
||
|
|
|
||
|
|
struct sphere {
|
||
|
|
bool intersects(vec4 sphere, vec4 other) {
|
||
|
|
vec3 spherePos(sphere[0], sphere[1], sphere[2]);
|
||
|
|
vec3 otherPos(other[0], other[1], other[2]);
|
||
|
|
vec3 diff = vec3::subtract(spherePos, otherPos);
|
||
|
|
|
||
|
|
__float mag = sqrtf(diff[0] * diff[0] + diff[1] * diff[1] + diff[2] * diff[2]);
|
||
|
|
__float sum_radii = sphere[3] + other[3];
|
||
|
|
|
||
|
|
if (mag * mag < sum_radii * sum_radii) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|