#include "./common.h"

/* === Resources === */

static Model		sphere = { 0 };
static R3D_Skybox	skybox = { 0 };
static Camera3D		camera = { 0 };

static Material materials[5 * 5] = { 0 };


/* === Examples === */

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

    R3D_SetBloomMode(R3D_BLOOM_ADDITIVE);

    sphere = LoadModelFromMesh(GenMeshSphere(0.5f, 64, 64));
    UnloadMaterial(sphere.materials[0]);

    for (int y = 0; y < 5; y++) {
        for (int x = 0; x < 5; x++) {
            int i = y * 5 + x;
            materials[i] = LoadMaterialDefault();
            materials[i].maps[MATERIAL_MAP_EMISSION].value = 1.0f;
            materials[i].maps[MATERIAL_MAP_OCCLUSION].value = 1.0f;
            materials[i].maps[MATERIAL_MAP_ROUGHNESS].value = (float)x / 5;
            materials[i].maps[MATERIAL_MAP_METALNESS].value = (float)y / 5;
            materials[i].maps[MATERIAL_MAP_ALBEDO].color = ColorFromHSV(x / 5.0f * 330, 1.0f, 1.0f);
            materials[i].maps[MATERIAL_MAP_EMISSION].color = materials[i].maps[MATERIAL_MAP_ALBEDO].color;
            materials[i].maps[MATERIAL_MAP_EMISSION].texture = materials[i].maps[MATERIAL_MAP_ALBEDO].texture;
        }
    }

    skybox = R3D_LoadSkybox(RESOURCES_PATH "sky/skybox1.png", CUBEMAP_LAYOUT_AUTO_DETECT);
    R3D_EnableSkybox(skybox);

    camera = (Camera3D){
        .position = (Vector3) { 0, 0, 5 },
        .target = (Vector3) { 0, 0, 0 },
        .up = (Vector3) { 0, 1, 0 },
        .fovy = 60,
    };

    return "[r3d] - bloom example";
}

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

void Draw(void)
{
    R3D_Begin(camera);
    for (int y = -2; y <= 2; y++) {
        for (int x = -2; x <= 2; x++) {
            sphere.materials[0] = materials[(y + 2) * 5 + (x + 2)];
            R3D_DrawModel(sphere, (Vector3) { x * 1.1f, y * 1.1f, 0.0f }, 1.0f);
        }
    }
    R3D_End();

    R3D_DrawBufferEmission(10, 10, 100, 100);
    R3D_DrawBufferBloom(120, 10, 100, 100);
}

void Close(void)
{
    UnloadModel(sphere);
    R3D_UnloadSkybox(skybox);
    R3D_Close();
}