Wrap source code lines to 96 characters

Resolves #219

src/InOneWeekend/camera.h

@@ -1,15 +1,15 @@
 #ifndef CAMERA_H
 #define CAMERA_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "ray.h"
@@ -25,7 +25,10 @@ vec3 random_in_unit_disk() {
 
 class camera {
     public:
-        camera(vec3 lookfrom, vec3 lookat, vec3 vup, double vfov, double aspect, double aperture, double focus_dist) {
+        camera(
+            vec3 lookfrom, vec3 lookat, vec3 vup, double vfov,
+            double aspect, double aperture, double focus_dist
+        ) {
             // vfov is top to bottom in degrees
             lens_radius = aperture / 2;
             auto theta = degrees_to_radians(vfov);
@@ -35,14 +38,20 @@ class camera {
             w = unit_vector(lookfrom - lookat);
             u = unit_vector(cross(vup, w));
             v = cross(w, u);
-            lower_left_corner = origin  - half_width*focus_dist*u -half_height*focus_dist*v - focus_dist*w;
+            lower_left_corner = origin
+                              - half_width*focus_dist*u
+                              - half_height*focus_dist*v
+                              - focus_dist*w;
             horizontal = 2*half_width*focus_dist*u;
             vertical = 2*half_height*focus_dist*v;
         }
         ray get_ray(double s, double t) {
             vec3 rd = lens_radius*random_in_unit_disk();
             vec3 offset = u * rd.x() + v * rd.y();
-            return ray(origin + offset, lower_left_corner + s*horizontal + t*vertical - origin - offset);
+            return ray(
+                origin + offset,
+                lower_left_corner + s*horizontal + t*vertical - origin - offset
+            );
         }
 
         vec3 origin;

src/InOneWeekend/hittable.h

@@ -1,15 +1,15 @@
 #ifndef HITTABLE_H
 #define HITTABLE_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "ray.h"

src/InOneWeekend/hittable_list.h

@@ -1,15 +1,15 @@
 #ifndef HITTABLE_LIST_H
 #define HITTABLE_LIST_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "hittable.h"
 

src/InOneWeekend/main.cc

@@ -1,13 +1,13 @@
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "camera.h"
@@ -39,7 +39,7 @@ vec3 ray_color(const ray& r, hittable *world, int depth) {
 hittable *random_scene() {
     int n = 500;
     hittable **list = new hittable*[n+1];
-    list[0] =  new sphere(vec3(0,-1000,0), 1000, new lambertian(vec3(0.5, 0.5, 0.5)));
+    list[0] = new sphere(vec3(0,-1000,0), 1000, new lambertian(vec3(0.5, 0.5, 0.5)));
     int i = 1;
     for (int a = -11; a < 11; a++) {
         for (int b = -11; b < 11; b++) {
@@ -93,7 +93,7 @@ int main() {
     auto dist_to_focus = 10.0;
     auto aperture = 0.1;
 
-    camera cam(lookfrom, lookat, vec3(0,1,0), 20, double(nx)/double(ny), aperture, dist_to_focus);
+    camera cam(lookfrom, lookat, vec3(0,1,0), 20, double(nx)/ny, aperture, dist_to_focus);
 
     for (int j = ny-1; j >= 0; j--) {
         for (int i = 0; i < nx; i++) {

src/InOneWeekend/material.h

@@ -1,15 +1,15 @@
 #ifndef MATERIAL_H
 #define MATERIAL_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "hittable.h"
@@ -72,7 +72,9 @@ class material  {
 class lambertian : public material {
     public:
         lambertian(const vec3& a) : albedo(a) {}
-        virtual bool scatter(const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered) const  {
+        virtual bool scatter(
+            const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered
+        ) const  {
              vec3 target = rec.p + rec.normal + random_unit_vector();
              scattered = ray(rec.p, target-rec.p);
              attenuation = albedo;
@@ -86,7 +88,9 @@ class lambertian : public material {
 class metal : public material {
     public:
         metal(const vec3& a, double f) : albedo(a) { if (f < 1) fuzz = f; else fuzz = 1; }
-        virtual bool scatter(const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered) const  {
+        virtual bool scatter(
+            const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered
+        ) const  {
             vec3 reflected = reflect(unit_vector(r_in.direction()), rec.normal);
             scattered = ray(rec.p, reflected + fuzz*random_in_unit_sphere());
             attenuation = albedo;
@@ -100,38 +104,41 @@ class metal : public material {
 class dielectric : public material {
     public:
         dielectric(double ri) : ref_idx(ri) {}
-        virtual bool scatter(const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered) const  {
-             vec3 outward_normal;
-             vec3 reflected = reflect(r_in.direction(), rec.normal);
-             double ni_over_nt;
-             attenuation = vec3(1.0, 1.0, 1.0);
-             vec3 refracted;
-             double reflect_prob;
-             double cosine;
-             if (dot(r_in.direction(), rec.normal) > 0) {
-                  outward_normal = -rec.normal;
-                  ni_over_nt = ref_idx;
-               // cosine = ref_idx * dot(r_in.direction(), rec.normal) / r_in.direction().length();
-                  cosine = dot(r_in.direction(), rec.normal) / r_in.direction().length();
-                  cosine = sqrt(1 - ref_idx*ref_idx*(1-cosine*cosine));
-             }
-             else {
-                  outward_normal = rec.normal;
-                  ni_over_nt = 1.0 / ref_idx;
-                  cosine = -dot(r_in.direction(), rec.normal) / r_in.direction().length();
-             }
-
-             if (refract(r_in.direction(), outward_normal, ni_over_nt, refracted))
-                reflect_prob = schlick(cosine, ref_idx);
-             else
-                reflect_prob = 1.0;
-
-             if (random_double() < reflect_prob)
-                scattered = ray(rec.p, reflected);
-             else
-                scattered = ray(rec.p, refracted);
-
-             return true;
+        virtual bool scatter(
+            const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered
+        ) const  {
+            vec3 outward_normal;
+            vec3 reflected = reflect(r_in.direction(), rec.normal);
+            double ni_over_nt;
+            attenuation = vec3(1.0, 1.0, 1.0);
+            vec3 refracted;
+            double reflect_prob;
+            double cosine;
+            if (dot(r_in.direction(), rec.normal) > 0) {
+                 outward_normal = -rec.normal;
+                 ni_over_nt = ref_idx;
+              // cosine =
+              //     ref_idx * dot(r_in.direction(), rec.normal) / r_in.direction().length();
+                 cosine = dot(r_in.direction(), rec.normal) / r_in.direction().length();
+                 cosine = sqrt(1 - ref_idx*ref_idx*(1-cosine*cosine));
+            }
+            else {
+                 outward_normal = rec.normal;
+                 ni_over_nt = 1.0 / ref_idx;
+                 cosine = -dot(r_in.direction(), rec.normal) / r_in.direction().length();
+            }
+
+            if (refract(r_in.direction(), outward_normal, ni_over_nt, refracted))
+               reflect_prob = schlick(cosine, ref_idx);
+            else
+               reflect_prob = 1.0;
+
+            if (random_double() < reflect_prob)
+               scattered = ray(rec.p, reflected);
+            else
+               scattered = ray(rec.p, refracted);
+
+            return true;
         }
 
         double ref_idx;

src/InOneWeekend/ray.h

@@ -1,15 +1,15 @@
 #ifndef RAY_H
 #define RAY_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 

src/InOneWeekend/sphere.h

@@ -1,15 +1,15 @@
 #ifndef SPHERE_H
 #define SPHERE_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "hittable.h"

src/TheNextWeek/aabb.h

@@ -1,15 +1,15 @@
 #ifndef AABB_H
 #define AABB_H
-//==================================================================================================
+//==============================================================================================
 // Originally written in 2016 by Peter Shirley <ptrshrl@gmail.com>
 //
 // To the extent possible under law, the author(s) have dedicated all copyright and related and
-// neighboring rights to this software to the public domain worldwide. This software is distributed
-// without any warranty.
+// neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
 //
-// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication along
-// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-//==================================================================================================
+// You should have received a copy (see file COPYING.txt) of the CC0 Public Domain Dedication
+// along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//==============================================================================================
 
 #include "common/rtweekend.h"
 #include "hittable.h"