Refactoring render.c

1 files changed, 30 insertions, 10 deletions

diff --git a/vector.c b/vector.c
index babaf12..ce5ea18 100644
--- a/vector.c
+++ b/vector.c
@@ -6,40 +6,60 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/11/18 01:28:01 by cacharle          #+#    #+#             */
-/*   Updated: 2019/11/19 18:21:22 by cacharle         ###   ########.fr       */
+/*   Updated: 2020/01/12 14:39:34 by cacharle         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "cub3d.h"
 
-t_vector vector_add(t_vector a, t_vector b)
+#define VECTOR_MINUS(v) vector_scale(v, -1.0)
+#define VECTOR_SUB(v, w) vector_add(v, VECTOR_MINUS(w))
+#define VECTOR_ADD_CONST(v, c) vector_add(v, vector_new(c, c))
+
+t_vector	vector_add(t_vector a, t_vector b)
 {
 	a.x += b.x;
 	a.y += b.y;
-	return a;
+	return (a);
 }
 
-t_vector vector_scale(t_vector v, double scalar)
+t_vector	vector_scale(t_vector v, double scalar)
 {
 	v.x *= scalar;
 	v.y *= scalar;
-	return v;
+	return (v);
 }
 
 /*
 ** rotate counter clockwise
 */
 
-t_vector vector_rotate(t_vector v, double angle)
+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;
+	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)
+double		vector_norm(t_vector v)
+{
+	return (sqrt(SQUARE(v.x) + SQUARE(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))
 {
-	return sqrt(SQUARE(v.x) + SQUARE(v.y));
+	v.x = f(v.x);
+	v.y = f(v.y);
+	return (v);
 }