Question

I need a little help with my tetris game
that I am coding in C++ , here is my problem:

The list of tetris blocks are 7 types:
{‘I’, ‘J’, ‘L’, ‘S’, ‘Z’, ‘O’, ‘T’}

and i need to pick ONE of the above character such that
S and Z are selected with probability 1/12 each, and the other blocks are selected with
probability 1/6 each.

What is my best way to generate the blocks according to these probabilities?

Answer 1

Create an array like so:

const char* block_distribution = {'I', 'I', 'J', 'J', 'L', 'L', 'S', 
                                  'Z', 'O', 'O', 'T', 'T'};

Then pick one element from that array using a uniform distribution.