Esempio n. 1
0
        protected virtual void CheckBorders()
        {
            if (Position.X > Game1.Width)
            {
                Position = new Vector2(Game1.Width, Position.Y);
                Velocity = Velocity.FlipX();
            }
            if (Position.X < 0)
            {
                Position = new Vector2(0, Position.Y);
                Velocity = Velocity.FlipX();
            }

            if (Position.Y > Game1.Height)
            {
                Position = new Vector2(Position.X, Game1.Height);
                Velocity = Velocity.FlipY();
            }

            if (Position.Y < 0)
            {
                Position = new Vector2(Position.X, 0);
                Velocity = Velocity.FlipY();
            }
        }
Esempio n. 2
0
        private Vector2 Move(float time)
        {
            Vector2 newPosition = Position + _velocity.GetMovement() * time;
            var     boundingBox = new Rectangle(Point.Zero, _clientBounds.Size);

            if (newPosition.X + _radius > boundingBox.Right)
            {
                float percentageBeforeCollide = (boundingBox.Right - _radius - Position.X) / (newPosition.X - Position.X);
                if (percentageBeforeCollide < 0.99)
                {
                    float timeBeforeCollide = percentageBeforeCollide * time;
                    Move(timeBeforeCollide);
                    time -= timeBeforeCollide;
                }

                _velocity.FlipX();
                newPosition = Move(time);
            }
            else if (newPosition.X - _radius < 0)
            {
                float percentageBeforeCollide = (_radius - Position.X) / (newPosition.X - Position.X);
                if (percentageBeforeCollide < 0.99)
                {
                    float timeBeforeCollide = percentageBeforeCollide * time;
                    Move(timeBeforeCollide);
                    time -= timeBeforeCollide;
                }

                _velocity.FlipX();
                newPosition = Move(time);
            }

            if (newPosition.Y + _radius > _clientBounds.Height)
            {
                float percentageBeforeCollide = (boundingBox.Bottom - _radius - Position.Y) / (newPosition.Y - Position.Y);
                if (percentageBeforeCollide < 0.99)
                {
                    float timeBeforeCollide = percentageBeforeCollide * time;
                    Move(timeBeforeCollide);
                    time -= timeBeforeCollide;
                }

                _velocity.FlipY();
                newPosition = Move(time);
            }
            else if (newPosition.Y - _radius < 0)
            {
                float percentageBeforeCollide = (_radius - Position.Y) / (newPosition.Y - Position.Y);
                if (percentageBeforeCollide < 0.99)
                {
                    float timeBeforeCollide = percentageBeforeCollide * time;
                    Move(timeBeforeCollide);
                    time -= timeBeforeCollide;
                }

                _velocity.FlipY();
                newPosition = Move(time);
            }

            return(newPosition);
        }