A short update about bug fixing in the game. I made the level selection new and partially adapted the source code. The levels can be selected now and start too. Problem is that the levels don't work properly. When I move the player to the right or left the camera stops at the starting point and after a short movement I get a black screen. But the game itself continues to run. Because the buttons for the controls are still visible. Also the timer which shows how much time is left for the level is still visible. By the way, this timer doesn't work under Android either.
After I changed the GLES version from 3 to 2 and the problems are still there, I will drastically reduce the Adroid SDK, which also means that this game will probably never appear in Google playstor.
If someone could have an idea why the picture turns black when I move the player, please add it to the comments
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