Hello,
I’m having a problem involving collision in the program (which is built in UE4). As I’m not sure if the problem is something defined in or if it’s a UE4 bug, I decided to post it here 
I really appreciate any tip!
Basically the problem is this: I have two actors, a pedestrian and a vehicle. I’m generating several scenarios where they collide. The pedestrian crosses the street in a straight line and the vehicle collides with him.
For the same speed, when the pedestrian collides with the vehicle before the middle of the vehicle, the collision is recognized, generating a “Hit Event” that is sent to an element called “collision sensor” that returns information from the actors involved in the collision. (That is what i had figure out about how the things works in ). But when the pedestrian collides with the vehicle after its middle, the “collision sensor” is not recognizing any collision. But there is no overlap, that is, the actors are blocking each other as expected.
My guess is that for some reason the “Hit Event” is not being generated and therefore the collision sensor is not returning to me that there was a collision.
This happens at different speeds for the vehicle (10 to 60).
Another interesting fact is that if I reverse the position of the pedestrian, thus changing what is before and after the middle of the vehicle. Where before the collision was recognized, it ceases to be and vice versa. The images below should help clarify the issue.
I’ve tried several suggestions:
1 - Enable CCD;
2 - Changed pedestrian and vehicle collision settings;
3 - Generate a more detailed collision mesh for the vehicle;
but so far nothing has resolved. If anyone has any ideas, I would be very grateful.