From 57867bbbdc24b734d85f8d3569c7ad27dcd9504d Mon Sep 17 00:00:00 2001 From: Charles Date: Thu, 30 Jan 2020 15:52:16 +0100 Subject: files restructuration --- src/vector.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 src/vector.c (limited to 'src/vector.c') diff --git a/src/vector.c b/src/vector.c new file mode 100644 index 0000000..44f784b --- /dev/null +++ b/src/vector.c @@ -0,0 +1,62 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* linear_algebra.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2019/11/18 01:28:01 by cacharle #+# #+# */ +/* Updated: 2020/01/16 08:43:09 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "cub3d.h" + +t_vector vector_add(t_vector a, t_vector b) +{ + a.x += b.x; + a.y += b.y; + return (a); +} + +t_vector vector_scale(t_vector v, double scalar) +{ + v.x *= scalar; + v.y *= scalar; + return (v); +} + +/* +** rotate counter clockwise +*/ + +t_vector vector_rotate(t_vector v, double angle) +{ + t_vector rotated; + + rotated.x = cos(angle) * v.x - sin(angle) * v.y; + rotated.y = sin(angle) * v.x + cos(angle) * v.y; + return (rotated); +} + +double vector_norm(t_vector v) +{ + /* return (sqrt(SQUARE(v.x) + SQUARE(v.y))); */ + return (hypot(v.x, v.y)); +} + +t_vector vector_new(double x, double y) +{ + t_vector v; + + v.x = x; + v.y = y; + return (v); +} + +t_vector vector_apply(t_vector v, double (*f)(double)) +{ + v.x = f(v.x); + v.y = f(v.y); + return (v); +} -- cgit