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common: add more AABB functions

This commit is contained in:
Eric Wasylishen 2016-08-09 17:56:55 -06:00
parent 79525b9aee
commit 4fb903bd8e
2 changed files with 16 additions and 1 deletions
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13
common/mathlib.c
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@ -124,3 +124,16 @@ void AABB_Expand(vec3_t mins, vec3_t maxs, const vec3_t pt) {
maxs[i] = qmax(maxs[i], pt[i]);
}
}
void AABB_Size(const vec3_t mins, const vec3_t maxs, vec3_t size_out) {
for (int i=0; i<3; i++) {
size_out[i] = maxs[i] - mins[i];
}
}
void AABB_Grow(vec3_t mins, vec3_t maxs, const vec3_t size) {
for (int i=0; i<3; i++) {
mins[i] -= size[i];
maxs[i] += size[i];
}
}

4
include/common/mathlib.h
View File

@ -182,7 +182,9 @@ void RandomDir(vec3_t dir);
bool AABBsDisjoint(const vec3_t minsA, const vec3_t maxsA, const vec3_t minsB, const vec3_t maxsB);
void AABB_Init(vec3_t mins, vec3_t maxs, const vec3_t pt);
void AABB_Expand(vec3_t mins, vec3_t maxs, const vec3_t pt);
void AABB_Size(const vec3_t mins, const vec3_t maxs, vec3_t size_out);
void AABB_Grow(vec3_t mins, vec3_t maxs, const vec3_t size);
#ifdef __cplusplus
}
#endif