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C++ 2d Game starter
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An easy-to-use game starter with builtin classes for basic graphics and some code for basic movement and controls. Also has conditional compilation, so you can run it on your PC (Windows or Linux).

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flickering usually comes from terminal buffering. He enables raw mode, which if I recall does disable some of this bbuffering. Also with terminal games you don't clear and redraw every "frame" per se, you can use escape sequences to move your cursor around and clear specific pixels. Even if you were to use escape sequences to clear the entire console, that would be usually faster than any native console clearing commands as it doesn't require a bunch of intermediate steps which are used for buffering, formatting, etc.