collisions

        protected void DoCollisions()
        {
            if (!IsSolid())
                return;

            var myColl = GetCollisionBounds();
            var myPrevColl = GetCollisionBounds();
            myPrevColl.Left -= Position.X - PreviousPosition.X;
            myPrevColl.Top -= Position.Y - PreviousPosition.Y;

            // Gather colliding entities
            var colls = new List<FloatRect>();
            foreach (var entity in CurrentLocation.GetEntities())
            {
                if (entity == this)
                    continue;

                var otherColl = entity.GetCollisionBounds();

                if (entity.IsSolid() && otherColl.Intersects(myColl) && !otherColl.Intersects(myPrevColl))
                {
                    colls.Add(otherColl);
                }
            }

            // TODO: Tiles

            // Resolve collisions
            foreach (var otherColl in colls)
            {
                // Horizontal
                if (otherColl.Left + otherColl.Width > myColl.Left && otherColl.Left + otherColl.Width <= myPrevColl.Left)
                {
                    Position.X += (otherColl.Left + otherColl.Width) - myColl.Left;
                    Velocity.X = 0;
                }
                else if (otherColl.Left < myColl.Left + myColl.Width && otherColl.Left >= myPrevColl.Left + myPrevColl.Width)
                {
                    Position.X -= (myColl.Left + myColl.Width) - otherColl.Left;
                    Velocity.X = 0;
                }

                // Vertical
                if (otherColl.Top + otherColl.Height > myColl.Top && otherColl.Top + otherColl.Height <= myPrevColl.Top)
                {
                    Position.Y += (otherColl.Top + otherColl.Height) - myColl.Top;
                    Velocity.Y = 0;
                }
                else if (otherColl.Top < myColl.Top + myColl.Height && otherColl.Left >= myPrevColl.Top + myPrevColl.Height)
                {
                    Position.Y -= (myColl.Top + myColl.Height) - otherColl.Top;
                    Velocity.Y = 0;
                }
            }
        }