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

//MAKRA

#define SIN(x) sin(x * 3.141592653589 / 180);
#define COS(x) cos(x * 3.141592653589 / 180);

//FUNKCJE

float length(Vector2& distanceVec) {
    return sqrt(distanceVec.x * distanceVec.x + distanceVec.y * distanceVec.y);
}

Vector2 normalize(Vector2& distanceVec, float& distanceNum) {
    return { distanceVec.x / distanceNum, distanceVec.y / distanceNum };
}

double radiansToDegrees(double radians) {
    return radians * (180.0f / PI);
}

double rotate(Vector2& objPosition, Vector2& pointPosition) {
    return atan2(pointPosition.y - objPosition.y, pointPosition.x - objPosition.x);
}

//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
    bool moving = false;
    int dirHintX;
    int dirHintY;
    //FUNKCJE
    void directionUpdate(Vector2 &direction) {
        dirHintX = 0;
        dirHintY = 0;
        moving = false;

        if (IsKeyDown(KEY_A)) dirHintX -= 1;
        if (IsKeyDown(KEY_D)) dirHintX += 1;
        if (IsKeyDown(KEY_W)) dirHintY -= 1;
        if (IsKeyDown(KEY_S)) dirHintY += 1;

        if (dirHintX != 0 || dirHintY != 0) {
            moving = true;
        }

        direction.x = position.x + dirHintX;
        direction.y = position.y + dirHintY;
    }

    void playerUpdate(Vector2 &entityPosition, Vector2 &direction, int &entitySpeed, bool &isPlayerMoving) {
        directionUpdate(direction);

        Vector2 distanceVec = { direction.x - entityPosition.x, direction.y - entityPosition.y };
        float distanceNum = length(distanceVec);
        Vector2 directionFinal = normalize(distanceVec, distanceNum);

        if (isPlayerMoving == true) {
            entityPosition.x += entitySpeed * directionFinal.x;
            entityPosition.y += entitySpeed * directionFinal.y;
        }
    }
};

class Sword : public Entity {
public:
    //ZMIENNE

    Vector2 pointToRot;
    double angle;

    //FUNKCJE

    void swordDraw(Vector2 &position) {
        Vector2 origin = { 0,0 }; // Środek obrotu
        Rectangle rect = { position.x, position.y, (float)size, (float)(size * 2) }; // Prostokąt miecza
        DrawRectanglePro(rect, origin, angle, BLUE);
    }

    void swordUpdate(Vector2& position, Vector2& destPosition, Vector2 pointPosition, float angle) {
        position = destPosition;

        // Oblicz kąt między graczem a myszką
        angle = rotate(position, pointPosition);
    }

};

//KLASY-ZMIENNE

Player player;
Sword sword;

//MAIN


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

    //-Player
    player.size = 10;
    player.speed = 8;
    player.hp = 5;
    player.position = Vector2{ screenWidth / 2,screenHeight / 2 };
    player.color = BLACK;
    //-Sword
    sword.size = 15;

    InitWindow(screenWidth, screenHeight, "Metachromatic");

    SetTargetFPS(60);

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

        player.playerUpdate(player.position, player.direction, player.speed, player.moving);
        sword.swordUpdate(sword.position, player.position, GetMousePosition(), sword.angle);

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

        ClearBackground(WHITE);

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

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

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

    //KONIEC PROGRAMU
}