tetris_clone/src/window/renderer.h

#pragma once
#include <SDL2/SDL.h>

#include "../game/game.h"

#define SCREEN_WIDTH 256
#define SCREEN_HEIGHT (SCREEN_WIDTH * 2)
#define BLOCK_WIDTH (SCREEN_WIDTH / COLUMNS)
#define BLOCK_HEIGHT (SCREEN_HEIGHT / (BLOCK_WIDTH * 2))

// fits colours in a 3 bit length
// 4th bit is unused
typedef enum {
    BLACK = 0,
    RED = 1,
    GREEN = 2,
    BLUE = 4,
    YELLOW = RED | GREEN,
    CYAN = GREEN | BLUE,
    MAGENTA = BLUE | RED,
    WHITE = RED | GREEN | BLUE,
} Colour;

typedef struct {
    SDL_Window* window;
    SDL_Renderer* renderer;
    GameData* game_data;
} RenderData;

int renderer_init(SDL_Window** window, SDL_Renderer** renderer);
void renderer_update(const RenderData* render_data);