Hi gamedev,

I have been bored on the programming lessons recently, so

i decided to make a bullet hell in c++ with sdl2.

The problem is, I don't know how to structure the code

so that it would work properly. Problems such as how to

control the bullets, how to spawn a enemy at the right time

needs to be solved.

Here is what i have come up with so far (psudoish);

class player
{

    SDL_Texture * P_Texture; 
    SDL_Texture * Col_texture;
    
    double mx; //x,y movement
    double my; 
    
    SDL_Rect P_pos; 
    
    int hp;
    int power;
    int points;


    void loop(double delta_time);

    void render(SDL_Renderer * renderer);
    
};


class Enemy
{
    int type;
    SDL_Texture * texture;
  
    int helth;

    SDL_Rect pos;
    SDL_Rect col;
    
    
    void loop();
    
    void render(SDL_Renderer * renderer);
    
};


struct Bullet       
{
    int type;
    
    SDL_Texture * texture;
    float rotation;
    
    int helth;
    
    SDL_Rect pos;
    SDL_Rect col;
    
  
    void render(SDL_Renderer * renderer);
    
    void loop(double delta_time);
};

class game
{
    player Player;
      
    std::vector<Enemy> enemies;
    std::vector<Bullet> bullets;

  
    void even(SDL_Event * event)
    {
        // Handle events and
        //  Pass on events to underlaying code   
    }

    void render(SDL_Renderer * renderer)
    {
        //Render 
    }
    
    void loop()
    {
        /*
         Update positions

         Handle collisions
         */
    } 
};

So where do I go from here? I would like to be able to control the bullets

using different equations and spawn allot of them. The game doesn't have

to be advanced at all just spawn a bunch of enemies and bullets flying

in different directions.

Thanks for any help and sorry for my bad English

Thank you. Ultra late reply, but i have been working on the game ever since you replied.

The command idea worked well, the only problem is that ifstream whont work on xcode
So i cant load the commands from a file, instead i store them in a string :

    std::string   line =
    "Begin 10 2 100 0 5 5"
    "N 70 2 700 0 5 5"
    "N 120 2 100 0 5 5"
    "N 130 3 200 0 2 50"
    "N 130 3 550 0 2 50"
    "Cos(v) 140 100 550 0 5 4"
    "N 190 100 550 0 5 4"
    "N 250 3 200 0 1 0"
    "N 250 3 550 0 1 0"
    "v=t 260 101 550 0 60 1"
    "N 300 3 500 0 1 0"
    "N 300 3 350 0 1 0"
    "N 300 3 150 0 1 0"
    "sin(y) 330 102 550 0 40 1"
    .....;

The Polymorfism also worked great for the first time i understand how abstract classes

and pointers work together.

Her is a samall gif of the game: