class Ball
{
    constructor(game, position_x, position_y, velocity_x, velocity_y)
    {
        this.game = game;
        this.position_x = position_x;
        this.position_y = position_y;
        this.velocity_x = velocity_x;
        this.velocity_y = velocity_y;
    }

    _collision(old_pos_x, old_pos_y, new_pos_x, new_pos_y)
    {

        return 0;
    }

    draw(ctx)
    {
        ctx.rect(this.position_x, this.position_y, this.game.config.ball_size, this.game.config.ball_size);
    }

    render()
    {
        new_pos_x = this.position_x + this.velocity_x * this.game.time.deltaTime();
        new_pos_y = this.position_y + this.velocity_y * this.game.time.deltaTime();

        if (this._collision(this.position_x, this.position_y, new_pos_x, new_pos_y))
        {
            this.velocity_x = -this.velocity_x;
            this.velocity_y = -this.velocity_y;
            new_pos_x = this.position_x + this.velocity_x * this.game.time.deltaTime();
            new_pos_y = this.position_y + this.velocity_y * this.game.time.deltaTime();
        }
        this.position_x = new_pos_x
        this.position_y = new_pos_y

        this.velocity_x = this.velocity_x + this.game.config.ball_speed_inc;
        this.velocity_y = this.velocity_y + this.game.config.ball_speed_inc;
    }

    update (position_x, position_y, velocity_x, velocity_y)
    {
        this.position_x = position_x;
        this.position_y = position_y;
        this.velocity_x = velocity_x;
        this.velocity_y = velocity_y; 
    }
}

export { Ball }