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Fixed in 2022.2.X



Found in


Issue ID




Inspector math expressions like +=X evaluate incrementally for every new typed character: +=333 results in 369

Inspector Framework


Since Unity 2021.2 the inspector got ability to evaluate better math expressions. For example, entering "+=3" adds 3 to the current value.

The issue is that the expression is re-evaluated based on current value for every new character typed into the field. You'd expect typing "+=333" to increase the value by 333, but instead it increases by 369 (+=3, +=33, +=333) unless you paste the full expression in one go.

1. Create any object at 0,0,0 position.
2. Type (not paste!) "+=333" into say position x field.

Results: position is 369 (i.e. 3+33+333).
Expected: position is 333.

A proper way would be to store the initial values, and evaluate expressions against the value when the user stared to edit the field, instead of current value.

  1. Resolution Note (fix version 2022.2):

    Fixed in 2022.2.0a11

Comments (1)

  1. CyRaid

    Oct 29, 2021 13:10

    I'm not sure what += does but I know if you wanna add a quick +333 just add a +333 to the value.

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