simple_scene.h

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#pragma once
 
#include "defines.h"
#include "math/math_types.h"
#include "resources/debug/debug_grid.h"
 
struct frame_data;
struct render_packet;
struct directional_light;
struct point_light;
struct mesh;
struct skybox;
struct geometry_config;
struct camera;
struct simple_scene_config;
struct terrain;
struct ray;
struct raycast_result;
struct transform;
struct viewport;
struct geometry_render_data;
 
typedef enum simple_scene_state {
    SIMPLE_SCENE_STATE_UNINITIALIZED,
    SIMPLE_SCENE_STATE_INITIALIZED,
    SIMPLE_SCENE_STATE_LOADING,
    SIMPLE_SCENE_STATE_LOADED,
    SIMPLE_SCENE_STATE_UNLOADING,
    SIMPLE_SCENE_STATE_UNLOADED
} simple_scene_state;
 
typedef struct pending_mesh {
    struct mesh* m;
 
    const char* mesh_resource_name;
 
    u32 geometry_config_count;
    struct geometry_config** g_configs;
} pending_mesh;
 
typedef struct simple_scene {
    u32 id;
    simple_scene_state state;
    b8 enabled;
 
    char* name;
    char* description;
 
    transform scene_transform;
 
    // Singlular pointer to a directional light.
    struct directional_light* dir_light;
 
    // darray of point lights.
    struct point_light* point_lights;
 
    // darray of meshes.
    struct mesh* meshes;
 
    // darray of terrains.
    struct terrain* terrains;
 
    // darray of meshes to be loaded.`
    pending_mesh* pending_meshes;
 
    // Singlular pointer to a skybox.
    struct skybox* sb;
 
    // A grid for the scene.
    debug_grid grid;
 
    // A pointer to the scene configuration, if provided.
    struct simple_scene_config* config;
 
} simple_scene;
 
KAPI b8 simple_scene_create(void* config, simple_scene* out_scene);
 
KAPI b8 simple_scene_initialize(simple_scene* scene);
 
KAPI b8 simple_scene_load(simple_scene* scene);
 
KAPI b8 simple_scene_unload(simple_scene* scene, b8 immediate);
 
KAPI b8 simple_scene_update(simple_scene* scene, const struct frame_data* p_frame_data);
 
KAPI b8 simple_scene_populate_render_packet(simple_scene* scene, struct camera* current_camera, struct viewport* v, struct frame_data* p_frame_data, struct render_packet* packet);
 
KAPI b8 simple_scene_raycast(simple_scene* scene, const struct ray* r, struct raycast_result* out_result);
 
KAPI b8 simple_scene_directional_light_add(simple_scene* scene, const char* name, struct directional_light* light);
 
KAPI b8 simple_scene_point_light_add(simple_scene* scene, const char* name, struct point_light* light);
 
KAPI b8 simple_scene_mesh_add(simple_scene* scene, const char* name, struct mesh* m);
 
KAPI b8 simple_scene_skybox_add(simple_scene* scene, const char* name, struct skybox* sb);
 
KAPI b8 simple_scene_terrain_add(simple_scene* scene, const char* name, struct terrain* t);
 
KAPI b8 simple_scene_directional_light_remove(simple_scene* scene, const char* name);
 
KAPI b8 simple_scene_point_light_remove(simple_scene* scene, const char* name);
 
KAPI b8 simple_scene_mesh_remove(simple_scene* scene, const char* name);
 
KAPI b8 simple_scene_skybox_remove(simple_scene* scene, const char* name);
 
KAPI b8 simple_scene_terrain_remove(simple_scene* scene, const char* name);
 
KAPI struct directional_light* simple_scene_directional_light_get(simple_scene* scene, const char* name);
 
KAPI struct point_light* simple_scene_point_light_get(simple_scene* scene, const char* name);
 
KAPI struct mesh* simple_scene_mesh_get(simple_scene* scene, const char* name);
 
KAPI struct skybox* simple_scene_skybox_get(simple_scene* scene, const char* name);
 
KAPI struct terrain* simple_scene_terrain_get(simple_scene* scene, const char* name);
 
KAPI struct transform* simple_scene_transform_get_by_id(simple_scene* scene, u32 unique_id);
 
KAPI b8 simple_scene_debug_render_data_query(simple_scene* scene, u32* data_count, struct geometry_render_data** debug_geometries);