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Not sure what language you are using, or calls you are making before this, but: float var_Min = var_R; if (var_G > var_Min) var_Min = var_G; if (var_B > var_Min) var_Min = var_B; Should be (note the use of < rather than >) float var_Min = var_R; if (var_G < var_Min) var_Min = var_G; if (var_B < var_Min) var_Min = var_B; Your posted code ...
A temporary fix I found that works: using the provided "gray blobs", there is one named "PBRStringAtIndex" (or something like that) which will indeed compile (EV3 only). This does not address the similar "write at index" issue, and the output is a "byte" (presumably ASCII), not text. (I will update this answer as I find out more.)
You can do this with parallel programs and a logic variable. You will need 3 loops, one for each sensor and one for the motor. In the sensor loops, wait for the touch sensor to be pressed and then set a logic variable to true. In the motor loop, have a switch block that tests the logic variable. If it is true, reverse and turn around and then set the logic ...
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