Update colour_t to use a union

src/raytracer/main.c

@@ -31,7 +31,8 @@ colour_t trace_ray(vec3f_t origin, vec3f_t direction, f32 t_min, f32 t_max,
                    const scene_t *scene, colour_t default_colour);
 
 i32 main(i32 argc, char *argv[]) {
-  colour_t bg = (colour_t){.r = 27, .g = 38, .b = 79, .a = 255};
+  colour_t bg =
+      (colour_t){.rgba.r = 27, .rgba.g = 38, .rgba.b = 79, .rgba.a = 255};
   vec3f_t camera = {.x = 0.0f, .y = 0.0f, .z = 0.0f};
   vec3f_t viewport = {.x = 1.0f, .y = 1.0f, .z = 1.0f};
 
@@ -48,17 +49,23 @@ i32 main(i32 argc, char *argv[]) {
       (sphere_t){
           .radius = 1.0f,
           .centre = (vec3f_t){.x = 0.0f, .y = -1.0f, .z = 3.0f},
-          .colour = (colour_t){.r = 245, .g = 238, .b = 158, .a = 255},
+          .colour =
+              (colour_t){
+                  .rgba.r = 245, .rgba.g = 238, .rgba.b = 158, .rgba.a = 255},
       },
       (sphere_t){
           .radius = 1.0f,
           .centre = (vec3f_t){.x = -2.0f, .y = 0.0f, .z = 4.0f},
-          .colour = (colour_t){.r = 59, .g = 142, .b = 165, .a = 255},
+          .colour =
+              (colour_t){
+                  .rgba.r = 59, .rgba.g = 142, .rgba.b = 165, .rgba.a = 255},
       },
       (sphere_t){
           .radius = 1.0f,
           .centre = (vec3f_t){.x = 2.0f, .y = 0.0f, .z = 4.0f},
-          .colour = (colour_t){.r = 171, .g = 52, .b = 40, .a = 255},
+          .colour =
+              (colour_t){
+                  .rgba.r = 171, .rgba.g = 52, .rgba.b = 40, .rgba.a = 255},
       },
   };