How to detect that my sprite is rotating CW or CCW?
Use 2 variables and compare them.
When you need to check it, set the current Angle to variable 1, wait 0.1 set angle to variable 2, check if its bigger or smaller.
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Use System condition "Is clockwise from".
https://www.scirra.com/manual/124/system-conditions
Ok I combine both suggestion, but the problem with is clockwise from, is when the angle is the same, it is considered clockwise.