vec_math optimized

MNasybullin · Oct 10, 2020 · 9b4b80d · 9b4b80d
1 parent 75b9c9e
commit 9b4b80d
Showing 1 changed file with 28 additions and 32 deletions.
diff --git a/src/vec_math.c b/src/vec_math.c
@@ -3,61 +3,57 @@
 /*                                                        :::      ::::::::   */
 /*   vec_math.c                                         :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: sdiego <sdiego@student.42.fr>              +#+  +:+       +#+        */
+/*   By: sdiego <sdiego@student.21-school.ru>       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/11/25 14:19:19 by aannara           #+#    #+#             */
-/*   Updated: 2020/08/27 06:01:07 by sdiego           ###   ########.fr       */
+/*   Updated: 2020/10/10 23:04:32 by sdiego           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "../include/rt.h"
 
 t_vec	add(t_vec a1, t_vec a2)
 {
-	t_vec	b;
-
-	b.c[0] = a1.c[0] + a2.c[0];
-	b.c[1] = a1.c[1] + a2.c[1];
-	b.c[2] = a1.c[2] + a2.c[2];
-	b.c[3] = a1.c[3] + a2.c[3];
-	return (b);
+	a1.c[0] += a2.c[0];
+	a1.c[1] += a2.c[1];
+	a1.c[2] += a2.c[2];
+	a1.c[3] += a2.c[3];
+	return (a1);
 }
 
 t_vec	sub(t_vec a1, t_vec a2)
 {
-	t_vec	b;
-
-	b.c[0] = a1.c[0] - a2.c[0];
-	b.c[1] = a1.c[1] - a2.c[1];
-	b.c[2] = a1.c[2] - a2.c[2];
-	b.c[3] = a1.c[3] - a2.c[3];
-	return (b);
+	a1.c[0] -= a2.c[0];
+	a1.c[1] -= a2.c[1];
+	a1.c[2] -= a2.c[2];
+	a1.c[3] -= a2.c[3];
+	return (a1);
 }
 
 t_vec	neg(t_vec a)
 {
-	a.c[0] = -a.c[0];
-	a.c[1] = -a.c[1];
-	a.c[2] = -a.c[2];
-	a.c[3] = -a.c[3];
+	a.c[0] *= -1;
+	a.c[1] *= -1;
+	a.c[2] *= -1;
+	a.c[3] *= -1;
 	return (a);
 }
 
 t_vec	mult(t_vec a, double b)
 {
-	a.c[0] = a.c[0] * b;
-	a.c[1] = a.c[1] * b;
-	a.c[2] = a.c[2] * b;
-	a.c[3] = a.c[3] * b;
+	a.c[0] *= b;
+	a.c[1] *= b;
+	a.c[2] *= b;
+	a.c[3] *= b;
 	return (a);
 }
 
 t_vec	divi(t_vec a, double b)
 {
-	a.c[0] = a.c[0] / b;
-	a.c[1] = a.c[1] / b;
-	a.c[2] = a.c[2] / b;
-	a.c[3] = a.c[3] / b;
+	a.c[0] /= b;
+	a.c[1] /= b;
+	a.c[2] /= b;
+	a.c[3] /= b;
 	return (a);
 }
 
@@ -69,10 +65,10 @@ double	magnitude(t_vec a)
 t_vec	normalize(t_vec v)
 {
 	double mg = magnitude(v);
-	v.c[0] = v.c[0] / mg;
-	v.c[1] = v.c[1] / mg;
-	v.c[2] = v.c[2] / mg;
-	v.c[3] = v.c[3] / mg;
+	v.c[0] /= mg;
+	v.c[1] /= mg;
+	v.c[2] /= mg;
+	v.c[3] /= mg;
 	return (v);
 }