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vec_math

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This commit is contained in:
whaffman 2025-04-25 10:46:34 +02:00
parent e866d3f702
commit 2974f7a9b2
11 changed files with 313 additions and 1 deletions
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8
inc/types.h
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@ -6,7 +6,7 @@
/* By: qmennen <qmennen@student.codam.nl> +#+ */ /* By: qmennen <qmennen@student.codam.nl> +#+ */
/* +#+ */ /* +#+ */
/* Created: 2025/04/15 15:52:44 by qmennen #+# #+# */ /* Created: 2025/04/15 15:52:44 by qmennen #+# #+# */
/* Updated: 2025/04/22 11:28:34 by whaffman ######## odam.nl */ /* Updated: 2025/04/25 10:01:28 by whaffman ######## odam.nl */
/* */ /* */
/* ************************************************************************** */ /* ************************************************************************** */
@ -30,6 +30,12 @@ typedef struct s_vec2
float y; float y;
} t_vec2; } t_vec2;
typedef struct s_vec2_line
{
t_vec2 support;
t_vec2 dir;
} t_vec2_line;
typedef struct s_player typedef struct s_player
{ {
t_vec2 pos; t_vec2 pos;

97
inc/vec_math.h Normal file
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@ -0,0 +1,97 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* vec_math.h :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 10:11:44 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:44:33 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#ifndef VEC_MATH_H
# define VEC_MATH_H
# include "types.h"
/**
* @brief Calculates the distance between two 2D vectors.
*
* @param a The first 2D vector.
* @param b The second 2D vector.
* @return The distance between vector a and vector b as a float.
*/
float dist(t_vec2 a, t_vec2 b);
/**
* @brief Calculates the norm (length) of a 2D vector.
*
* @param a The 2D vector.
* @return The norm of vector a as a float.
*/
float norm(t_vec2 a);
/**
* @brief Calculates the dot product of two 2D vectors.
*
* @param a The first 2D vector.
* @param b The second 2D vector.
* @return The dot product of vector a and vector b as a float.
*/
float dot(t_vec2 a, t_vec2 b);
/**
* @brief Calculates the distance from a point to a line.
*
* @param point The point to calculate the distance from.
* @param line The line defined by a (support)point and a direction.
* @return The distance from the point to the line as a float.
*/
float dist_point_line(t_vec2 point, t_vec2_line line);
/**
* @brief Adds two 2D vectors.
*
* @param a The first 2D vector.
* @param b The second 2D vector.
* @return The sum of vector a and vector b as a new 2D vector.
*/
t_vec2 add(t_vec2 a, t_vec2 b);
/**
* @brief Subtracts one 2D vector from another.
*
* @param a The first 2D vector.
* @param b The second 2D vector to subtract from the first.
* @return The result of subtracting vector b from vector a as a new 2D vector.
*/
t_vec2 sub(t_vec2 a, t_vec2 b);
/**
* @brief Multiplies a 2D vector by a scalar.
*
* @param a The 2D vector to multiply.
* @param b The scalar to multiply the vector by.
* @return The result of multiplying vector a by scalar b as a new 2D vector.
*/
t_vec2 mul(t_vec2 a, float b);
/**
* @brief Rotates a 2D vector by a given angle.
*
* @param a The 2D vector to rotate.
* @param angle The angle in radians to rotate the vector by.
* @return The rotated vector as a new 2D vector.
*/
t_vec2 rot(t_vec2 a, float angle);
/**
* @brief Calculates the perpendicular vector of a 2D vector.
*
* @param a The 2D vector to calculate the perpendicular of.
* @return The perpendicular vector as a new 2D vector.
*/
t_vec2 perp(t_vec2 a);
#endif // VEC_MATH_H

24
src/math/add.c Normal file
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@ -0,0 +1,24 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* add.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 09:54:24 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:39:42 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
t_vec2 add(t_vec2 a, t_vec2 b)
{
t_vec2 result;
result.x = a.x + b.x;
result.y = a.y + b.y;
return (result);
}

20
src/math/dist.c Normal file
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@ -0,0 +1,20 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* dist.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 10:07:59 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:39:59 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
float dist(t_vec2 a, t_vec2 b)
{
return (sqrtf((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y)));
}

25
src/math/dist_point_line.c Normal file
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@ -0,0 +1,25 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* dist_point_line.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 10:09:45 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:46:06 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
float dist_point_line(t_vec2 point, t_vec2_line line)
{
float d;
t_vec2 ps;
ps = sub(line.support, point);
d = norm(sub(ps, mul(line.dir, dot(ps, line.dir))));
return (d);
}

20
src/math/dot.c Normal file
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@ -0,0 +1,20 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* dot.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 09:58:29 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:02 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
float dot(t_vec2 a, t_vec2 b)
{
return (a.x * b.x + a.y * b.y);
}

24
src/math/mul.c Normal file
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@ -0,0 +1,24 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* mul.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 09:56:39 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:05 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
t_vec2 mul(t_vec2 a, float b)
{
t_vec2 result;
result.x = a.x * b;
result.y = a.y * b;
return (result);
}

20
src/math/norm.c Normal file
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@ -0,0 +1,20 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* norm.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 09:59:13 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:13 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
float norm(t_vec2 a)
{
return (sqrtf(a.x * a.x + a.y * a.y));
}

24
src/math/perp.c Normal file
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@ -0,0 +1,24 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* perp.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 10:34:39 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:17 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
t_vec2 perp(t_vec2 a)
{
t_vec2 result;
result.x = -a.y;
result.y = a.x;
return (result);
}

28
src/math/rot.c Normal file
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@ -0,0 +1,28 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* rot.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 10:35:58 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:23 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
t_vec2 rot(t_vec2 a, float angle)
{
t_vec2 result;
float cos_angle;
float sin_angle;
cos_angle = cosf(angle);
sin_angle = sinf(angle);
result.x = a.x * cos_angle - a.y * sin_angle;
result.y = a.x * sin_angle + a.y * cos_angle;
return (result);
}

24
src/math/sub.c Normal file
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@ -0,0 +1,24 @@
/* ************************************************************************** */
/* */
/* :::::::: */
/* sub.c :+: :+: */
/* +:+ */
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/04/25 09:57:55 by whaffman #+# #+# */
/* Updated: 2025/04/25 10:40:27 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "math.h"
#include "vec_math.h"
t_vec2 sub(t_vec2 a, t_vec2 b)
{
t_vec2 result;
result.x = a.x - b.x;
result.y = a.y - b.y;
return (result);
}