53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
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/******************************************************************************
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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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#include <math.h>
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#include "math-extra.h"
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#include "math-defs.h"
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#include "vec2.h"
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void vec2_abs(struct vec2 *dst, const struct vec2 *v)
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{
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vec2_set(dst, fabsf(v->x), fabsf(v->y));
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}
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void vec2_floor(struct vec2 *dst, const struct vec2 *v)
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{
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vec2_set(dst, floorf(v->x), floorf(v->y));
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}
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void vec2_ceil(struct vec2 *dst, const struct vec2 *v)
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{
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vec2_set(dst, ceilf(v->x), ceilf(v->y));
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}
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int vec2_close(const struct vec2 *v1, const struct vec2 *v2, float epsilon)
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{
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return close_float(v1->x, v2->x, epsilon) &&
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close_float(v1->y, v2->y, epsilon);
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}
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void vec2_norm(struct vec2 *dst, const struct vec2 *v)
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{
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float len = vec2_len(v);
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if (len > 0.0f) {
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len = 1.0f / len;
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vec2_mulf(dst, v, len);
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}
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}
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