Fix bug when sampling points in a non-rectangular environment #26
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Hey, I figured there was a bug with how points are being sampled randomly in non-rectangular environments. First, points were sampled uniformly within the absolute distance between the extents. Therefore, if the extent in x-direction was -2, 4, only points between 0 and 6 were sampled. Secondly, it should be checked whether points are actually within the boundaries of the environment if the environment is not rectangular. However, the last if-statement checked whether it was rectangular. Both bugs should be fixed with this PR. Feel free to have a look, thanks :)