sprite.h

#ifndef SPRITE_H
#define SPRITE_H

#include <raylib.h>
#include "format.h"
#include "array.h"

/* (All sprites are the same!!!) */
#define SPRITE_LENGTH   128
#define SPRITE_MIPMAPS  1
#define SPRITE_FORMAT   PIXELFORMAT_UNCOMPRESSED_R8G8B8
#define SPRITE_SIZE     GetPixelDataSize(SPRITE_LENGTH, SPRITE_LENGTH, SPRITE_FORMAT)

#define format_Sprite \
    format_fixed_list(SPRITE_SIZE, \ 
        format_obj(char) \
    )
typedef struct Sprite {
    void *pixels;
} Sprite;

/* Returns the image of `sprite`. */
static Image sprite_image(Sprite sprite) {
    return (Image) {
        .width = SPRITE_LENGTH,
        .height = SPRITE_LENGTH,
        .mipmaps = SPRITE_MIPMAPS,
        .format = SPRITE_FORMAT,
        .data = sprite.pixels
    };
}

/* Creates a sprite from `image`. */
static Sprite sprite_new_raw(Image *im) {
    ImageResize(im, SPRITE_LENGTH, SPRITE_LENGTH);
    ImageFormat(im, SPRITE_FORMAT);

    Sprite sprite = {
        .pixels = malloc(SPRITE_SIZE)
    };

    memcpy(sprite.pixels, im->data, SPRITE_SIZE);
    UnloadImage(*im);

    return sprite;
}

/* Creates a sprite from image in `filename`. */
static Sprite sprite_new(const char *filename) {
    Image im = LoadImage(filename);
    if (im.data == NULL) {
        return (Sprite) { 0 };
    }
    return sprite_new_raw(&im);
}

/* Loads texture from `pixels`. */
static Texture sprite_load(Sprite sprite) {
    return LoadTextureFromImage(sprite_image(sprite));
}

/* Exports `sprite` to `filename`. */
static bool sprite_export(Sprite sprite, char *filename) {
    return ExportImage(sprite_image(sprite), filename);
}

/* Duh! */
static void sprite_free(Sprite sprite) {
    free(sprite.pixels);
}

#endif