townengine/src/private/rendering.h

#ifndef PRIVATE_RENDERING_H
#define PRIVATE_RENDERING_H

#include "../rendering.h"
#include "../util.h"

#include <SDL2/SDL.h>
#include <glad/glad.h>

#include <stdbool.h>

struct sprite_primitive {
    t_frect rect;
    t_color color;
    double rotation;
    char *path;
    SDL_BlendMode blend_mode;
    int atlas_index;
    int layer;
    bool flip_x;
    bool flip_y;
};

struct rect_primitive {
    t_frect rect;
    t_color color;
};

struct circle_primitive {
    float radius;
    t_color color;
    t_fvec2 position;
};

/* batch of primitives with overlapping properties */
struct mesh_batch {
    GLuint buffer; /* server side storage */
    uint8_t *data; /* client side storage */
    // size_t buffer_len; /* element count */
};

struct mesh_batch_item {
    char *key;
    struct mesh_batch value;
};

/* is structure that is in opengl vertex array */
struct uncolored_space_triangle {
    t_fvec3 v0;
    t_shvec2 uv0;
    t_fvec3 v1;
    t_shvec2 uv1;
    t_fvec3 v2;
    t_shvec2 uv2;
};

#endif