From fc601fd503ec1ebd08e4daffeb9aa0812aff2b71 Mon Sep 17 00:00:00 2001
From: ladevieq <ladevie.quentin@gmail.com>
Date: Sun, 20 Dec 2020 16:50:33 +0100
Subject: Render a sphere Fix errors in the renderer

---
 src/vec3.cpp | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

(limited to 'src/vec3.cpp')

diff --git a/src/vec3.cpp b/src/vec3.cpp
index 8164aeb..fdd8969 100644
--- a/src/vec3.cpp
+++ b/src/vec3.cpp
@@ -42,15 +42,16 @@ double vec3::length_sq() {
     return x * x + y * y + z * z;
 }
 
-double vec3::dot(vec3& vec) {
-    return x * vec.x + y + vec.y + z + vec.z;
+double vec3::dot(const vec3& vec) const {
+    return x * vec.x + y * vec.y + z * vec.z;
 }
 
-vec3 vec3::cross(vec3& vec) {
-    return vec3(y * vec.z - z * vec.y,
-                z * vec.x - x * vec.z,
-                x * vec.y - y * vec.y
-            );
+vec3 vec3::cross(const vec3& vec) const {
+    return vec3(
+        y * vec.z - z * vec.y,
+        z * vec.x - x * vec.z,
+        x * vec.y - y * vec.y
+    );
 }
 
 vec3 vec3::unit() {
@@ -74,7 +75,11 @@ vec3 operator*(vec3 u, vec3 v) {
 }
 
 vec3 operator*(vec3 u, double scale) {
-    return vec3(u.x * scale, u.y * scale, u.z * scale);
+    return vec3(
+        u.x * scale,
+        u.y * scale,
+        u.z * scale
+    );
 }
 
 vec3 operator*(double scale, vec3 u) {
-- 
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