#include <iostream>
#include <raylib.h>


//FUNKCJE

int normalize(Vector2 vector) {
    return sqrt(vector.x * vector.x + vector.y * vector.y);
}

//KLASY

class Entity {
public:
    //ZMIENNE INT
    int size;
    int speed;
    int hp;
    //ZMIENNE WEKTOROWE
    Vector2 position;
    Vector2 direction = { 0,0 };
    //ZMIENNE ABSTRAKCYJNE
    Color color;

    //FUNKCJE
    void entityDraw(Vector2 &entityPosition, int entitySize, Color &entityColor) {
        DrawCircle(entityPosition.x, entityPosition.y, entitySize, entityColor);
    }
};

class Player : public Entity {
public:
    //ZMIENNE

    //FUNKCJE
    void directionUpdate(Vector2 &direction) {

        if (IsKeyDown(KEY_A)) {
            direction.x = -1;
        }
        else if (IsKeyDown(KEY_D)) {
            direction.x = 1;
        }
        else if (IsKeyDown(KEY_W)) {
            direction.y = -1;
        }
        else if (IsKeyDown(KEY_S)) {
            direction.y = 1;
        }
        else {
            direction = { 0,0 };
        }

    }

    void entityUpdate(Vector2 &entityPosition, Vector2 &direction, int &entitySpeed) {
        directionUpdate(direction);

        entityPosition.x = (entityPosition.x + speed * normalize(direction));
        entityPosition.y = (entityPosition.y + speed * normalize(direction));
    }
};

//KLASY-ZMIENNE

Player player;

//MAIN


int main()
{
    //INICJALIZACJA!!!
    const int screenWidth = 640;
    const int screenHeight = 360;

    //-Player
    player.size = 20;
    player.speed = 10;
    player.hp = 5;
    player.position = Vector2{ screenWidth / 2,screenHeight / 2 };
    player.color = BLACK;

    InitWindow(screenWidth, screenHeight, "Metachromatic");

    SetTargetFPS(60);

    //MAIN LOOP GRY!!!
    while (!WindowShouldClose()) {
        //------------------------------------------------------------------------------------------------------------
        //UPDATE

        player.entityUpdate(player.position, player.direction, player.speed);

        //DRAW
        //DRAW-BEGIN
        BeginDrawing();

        ClearBackground(WHITE);

        player.entityDraw(player.position, player.size, player.color);
        DrawText("JACIE GYACIE DZIALA", screenWidth / 2, screenHeight / 2, 20, LIGHTGRAY);

        //DRAW-END
        EndDrawing();
        //------------------------------------------------------------------------------------------------------------
    }

    //DE-INICJALIZACJA
    //ZAMYKANIE OKNA GRY
    CloseWindow();

    //KONIEC PROGRAMU
}