Ahead disobeyed

Hello, I wanted to get some advice from you here. Perhaps you can see the incident differently than I do. The following locations: Parking all cars are left and right to each other.You can now drive around the parking lot outside. When I found none, I drove again from the “place”. For this I had to drive on a road.Here is right in front of left. On the right in the street there was a car. Apparently he was looking for a parking space. When I got closer to the entrance…. he signaled to me with Ha I also raised my hand.When I was with my rear axle in his area of the left shock bar, he drove off.But I noticed that only when he saw me around 40 degrees and hit it. His damage is a scratch.My damage is a crushed side wall. First he played it all down. He didn’t see me etc. Then he told me that I drove him into the car.We had to clear the accident place.I have pictures. I then called the police. The situation is clear for them. I didn’t pay attention to the right in front of the left. If I had been like this, I would have agreed with it. But I don’t. I feel linked by the other. Today we go to the lawyer. Had jeamand ever had such a case or know what as a Ratschalg ,Tip? Thank you very much to you !!