Split scene definition to use it in both raytracer and rasteriser

include/raytracer/raytracer.h

@@ -2,41 +2,10 @@
 #define RAYTRACER_H
 
 #include "c_cpp_aliases/aliases.h"
+#include "scene/scene.h"
 #include "vector/vec.h"
 #include "window/window.h"
 
-typedef struct {
-  f32 radius;
-  vec3f_t centre;
-  colour_t colour;
-  f32 specular;
-  f32 reflective;
-} sphere_t;
-
-typedef enum {
-  LIGHT_TYPE_POINT,
-  LIGHT_TYPE_DIRECTIONAL,
-  LIGHT_TYPE_AMBIENT,
-
-  COUNT_LIGHT_TYPE,
-} light_type_t;
-
-typedef struct {
-  light_type_t type;
-  f32 intensity;
-  union {
-    vec3f_t position;
-    vec3f_t direction;
-  };
-} light_t;
-
-typedef struct {
-  sphere_t *spheres;
-  light_t *lights;
-  u32 spheres_count;
-  u32 lights_count;
-} scene_t;
-
 typedef struct {
   f32 t1;
   f32 t2;
@@ -44,7 +13,7 @@ typedef struct {
 
 typedef struct {
   f32 closest_t;
-  sphere_t *closest_sphere;
+  const sphere_t *closest_sphere;
 } intersection_t;
 
 colour_t trace_ray(vec3f_t origin, vec3f_t direction, f32 t_min, f32 t_max,

include/scene/scene.h

@@ -0,0 +1,41 @@
+#ifndef SCENE_H
+#define SCENE_H
+
+#include "c_cpp_aliases/aliases.h"
+#include "window/window.h"
+
+typedef struct {
+  f32 radius;
+  vec3f_t centre;
+  colour_t colour;
+  f32 specular;
+  f32 reflective;
+} sphere_t;
+
+typedef enum {
+  LIGHT_TYPE_POINT,
+  LIGHT_TYPE_DIRECTIONAL,
+  LIGHT_TYPE_AMBIENT,
+
+  COUNT_LIGHT_TYPE,
+} light_type_t;
+
+typedef struct {
+  light_type_t type;
+  f32 intensity;
+  union {
+    vec3f_t position;
+    vec3f_t direction;
+  };
+} light_t;
+
+typedef struct {
+  const sphere_t *spheres;
+  const light_t *lights;
+  u32 spheres_count;
+  u32 lights_count;
+} scene_t;
+
+const scene_t *build_test_scene(void);
+
+#endif // !SCENE_H