#include "./common.h"

/* === Resources === */

static Model		sponza = { 0 };
static Camera3D		camera = { 0 };


/* === Examples === */

const char* Init(void)
{
    R3D_Init(GetScreenWidth(), GetScreenHeight(), 0);
    SetTargetFPS(60);

    sponza = RES_LoadModel("sponza.glb");

    for (int i = 0; i < sponza.materialCount; i++) {
        sponza.materials[i].maps[MATERIAL_MAP_ALBEDO].color = WHITE;
        sponza.materials[i].maps[MATERIAL_MAP_OCCLUSION].value = 1.0f;
        sponza.materials[i].maps[MATERIAL_MAP_ROUGHNESS].value = 1.0f;
        sponza.materials[i].maps[MATERIAL_MAP_METALNESS].value = 1.0f;
    }

    R3D_SetFogMode(R3D_FOG_EXP);

    R3D_Light light = R3D_CreateLight(R3D_LIGHT_DIR);
    R3D_SetLightDirection(light, (Vector3) { 0, -1, 0 });
    R3D_SetLightActive(light, true);

    camera = (Camera3D){
        .position = (Vector3) { 0, 0, 0 },
        .target = (Vector3) { 0, 0, -1 },
        .up = (Vector3) { 0, 1, 0 },
        .fovy = 60,
    };

    DisableCursor();

    return "[r3d] - fog example";
}

void Update(float delta)
{
    UpdateCamera(&camera, CAMERA_FREE);
}

void Draw(void)
{
    R3D_Begin(camera);
        R3D_DrawModel(sponza, (Vector3) { 0 }, 1.0f);
    R3D_End();

    DrawFPS(10, 10);
}

void Close(void)
{
    UnloadModel(sponza);
    R3D_Close();
}