f53df7da64
Code submissions have continually suffered from formatting inconsistencies that constantly have to be addressed. Using clang-format simplifies this by making code formatting more consistent, and allows automation of the code formatting so that maintainers can focus more on the code itself instead of code formatting.
164 lines
3.9 KiB
C
164 lines
3.9 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "../util/c99defs.h"
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#include <math.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct vec2 {
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union {
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struct {
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float x, y;
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};
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float ptr[2];
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};
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};
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static inline void vec2_zero(struct vec2 *dst)
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{
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dst->x = 0.0f;
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dst->y = 0.0f;
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}
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static inline void vec2_set(struct vec2 *dst, float x, float y)
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{
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dst->x = x;
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dst->y = y;
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}
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static inline void vec2_copy(struct vec2 *dst, const struct vec2 *v)
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{
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dst->x = v->x;
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dst->y = v->y;
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}
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static inline void vec2_add(struct vec2 *dst, const struct vec2 *v1,
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const struct vec2 *v2)
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{
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vec2_set(dst, v1->x + v2->x, v1->y + v2->y);
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}
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static inline void vec2_sub(struct vec2 *dst, const struct vec2 *v1,
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const struct vec2 *v2)
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{
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vec2_set(dst, v1->x - v2->x, v1->y - v2->y);
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}
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static inline void vec2_mul(struct vec2 *dst, const struct vec2 *v1,
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const struct vec2 *v2)
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{
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vec2_set(dst, v1->x * v2->x, v1->y * v2->y);
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}
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static inline void vec2_div(struct vec2 *dst, const struct vec2 *v1,
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const struct vec2 *v2)
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{
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vec2_set(dst, v1->x / v2->x, v1->y / v2->y);
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}
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static inline void vec2_addf(struct vec2 *dst, const struct vec2 *v, float f)
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{
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vec2_set(dst, v->x + f, v->y + f);
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}
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static inline void vec2_subf(struct vec2 *dst, const struct vec2 *v, float f)
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{
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vec2_set(dst, v->x - f, v->y - f);
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}
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static inline void vec2_mulf(struct vec2 *dst, const struct vec2 *v, float f)
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{
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vec2_set(dst, v->x * f, v->y * f);
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}
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static inline void vec2_divf(struct vec2 *dst, const struct vec2 *v, float f)
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{
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vec2_set(dst, v->x / f, v->y / f);
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}
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static inline void vec2_neg(struct vec2 *dst, const struct vec2 *v)
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{
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vec2_set(dst, -v->x, -v->y);
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}
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static inline float vec2_dot(const struct vec2 *v1, const struct vec2 *v2)
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{
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return v1->x * v2->x + v1->y * v2->y;
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}
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static inline float vec2_len(const struct vec2 *v)
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{
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return sqrtf(v->x * v->x + v->y * v->y);
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}
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static inline float vec2_dist(const struct vec2 *v1, const struct vec2 *v2)
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{
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struct vec2 temp;
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vec2_sub(&temp, v1, v2);
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return vec2_len(&temp);
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}
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static inline void vec2_minf(struct vec2 *dst, const struct vec2 *v, float val)
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{
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if (v->x < val)
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dst->x = val;
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if (v->y < val)
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dst->y = val;
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}
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static inline void vec2_min(struct vec2 *dst, const struct vec2 *v,
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const struct vec2 *min_v)
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{
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if (v->x < min_v->x)
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dst->x = min_v->x;
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if (v->y < min_v->y)
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dst->y = min_v->y;
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}
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static inline void vec2_maxf(struct vec2 *dst, const struct vec2 *v, float val)
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{
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if (v->x > val)
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dst->x = val;
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if (v->y > val)
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dst->y = val;
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}
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static inline void vec2_max(struct vec2 *dst, const struct vec2 *v,
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const struct vec2 *max_v)
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{
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if (v->x > max_v->x)
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dst->x = max_v->x;
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if (v->y > max_v->y)
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dst->y = max_v->y;
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}
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EXPORT void vec2_abs(struct vec2 *dst, const struct vec2 *v);
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EXPORT void vec2_floor(struct vec2 *dst, const struct vec2 *v);
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EXPORT void vec2_ceil(struct vec2 *dst, const struct vec2 *v);
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EXPORT int vec2_close(const struct vec2 *v1, const struct vec2 *v2,
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float epsilon);
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EXPORT void vec2_norm(struct vec2 *dst, const struct vec2 *v);
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#ifdef __cplusplus
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}
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#endif
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