Hello 
I made some progress working with UE4. However I have one problem which I cant solve. I am creating a Pong clone. The Clone looks like that
The black ball is created through a blueprint and a sphere component.
What I want to do:
When the game starts, add an impulse to the ball so that it moves to the left. It collides with the leftpaddle and is pushed to the right. The velocity should not change! Also the ball should only move in the x and y-direction, not in z. But when I am hitting the ball very strong with the paddle than it moves also in the z-direction and jumps out of the field.
The level-bp which adds the impulse looks like this:
Any advice?
Thanks
I was not able to disable dampening and fraction for every object I have in the pong level (f.e. the geometry brushes). I solved the problem by setting the velocity in a blueprint and manipulate the vector.