#ifndef APP_H
#define APP_H
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <stdbool.h>
#include <stdio.h>
#include <GL/gl.h>
#include <time.h>
#include <stdlib.h>
#include "camera.h"
#include "noise.h"
#include "chunk.h"

#define SPEED 5

#define VIEWPORT_RATIO (16.0 / 9.0)
#define VIEWPORT_ASPECT 50.0

typedef unsigned int uint;

#define CHUNK_MAX_X 16
#define CHUNK_MAX_Y 16
#define CHUNK_MAX_Z 128

#define MAX_PARTICLE_GROUPS 10
#define PARTICLES_PER_GROUP 50

typedef struct {
    vec3f pos[PARTICLES_PER_GROUP];
    unsigned int time;
} ParticleGroup;

typedef struct {
    bool is_running;
    SDL_Window *window;
    SDL_GLContext context;
    Camera camera;
    double frame_time;
    ChunkManager *cm;
    Type_surface *surfaces;
    unsigned int surface_count;
    ParticleGroup particles[MAX_PARTICLE_GROUPS];
    unsigned char particle_count;
} App;

void app_generate_world(App *app, int a);

void app_load_textures(App *app);

int check_intersection_block(App *app, vec3i *retv, int *chunk_index);

void app_break_block(App *app);

void app_place_block(App *app);

bool app_check_collision(vec3f camera_pos, ChunkManager *cm);

void init_app(App *app, uint w, uint h);

void init_opengl();

void handle_events(App *app);

void reshape(GLsizei width, GLsizei height);

void update_app(App* app);

float calc_frame_time(struct timespec *start, struct timespec *end);

void app_draw_particles(App *app, vec3i b);

void app_update_particles(App *app);

#endif