Switched both games to a 30 fps render cap (FRAME_MS = 33 ms) for smoother,
more predictable frame pacing. Snake base speed raised to 150 px/sec (~60 ms
per step at cell=9) so turn commands take effect at the next step without
perceived lag. The buffered-direction model (latest keypress wins) is
unchanged — turns apply at the next step, which is immediate in snake terms.
Progressive difficulty (+1 px/sec per 5 food in Snake, +1 px/sec per 10 lines
in Tetris), edge wrap, Gameboy-style beveled blocks, and all controls are
unchanged.
Luxferre
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