tetris rotate shape
# General formula for rotating around origin is
xNew = x * cos(a) - y * sin(a)
yNew = x * sin(a) + y * cos(a)
# For 90 degrees it becomes
xNew = -y
yNew = xtetris rotate shape
# General formula for rotating around origin is
xNew = x * cos(a) - y * sin(a)
yNew = x * sin(a) + y * cos(a)
# For 90 degrees it becomes
xNew = -y
yNew = xCopyright © 2021 Codeinu
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