Division in inspector rounds result

[breakmt]

Godot version:
3.1 beta 4

Issue description:
Example:

1. Node2D -> Inspector -> Transform
2. In Scale.X write 1/2 and hit Enter

Result: value is 0

Expected: value is 0.5

Note:
I'm not sure if this expected behavior, but in my opinion as "scale" is vector2 and it contains X and Y which are float, so the result of division calculation should be float as well. But right now result is rounded.

[akien-mga]

That's intended behaviour, most programming languages work this way. If you divide an integer by an integer, you get an integer (and thus the integral part of the division).

Use 1.0/2, 1/2.0 or 1.0/2.0 if you want a float.

[AlfishSoftware]

That's intended behaviour

That's terrible behavior, though. The inspector is not a programming language and a field in the inspector is not a coding area - if anything, people will see it like a calculator.
This is an important necessary feature that should work predictably; it shouldn't be replaced with irregular behavior just because of some technicality. This badly hurts usability, even for coders and will confuse beginners.

Often you want to quickly divide a bunch of values to make adjustments in a batch, without having to pay attention to the actual value. If the field is float, then adding /4 at the end of the current value should give me a float division always. Current behavior is awful because this will depend on the current value. If it shows 1.01 then I get it right, but if it happens to show 1 instead, then I won't get 1.0/4 = 0.25, but an integer division nobody would expect on a float field.

I'm not asking to "solve" this by showing 1.0 unnecessarily.
What should happen is whatever parser that evaluates this should either:

• parse all numeric literals as the field type - if the field is long, then it's only fair that it would make integer division
• parse all numeric literals as double, like in JS, then cast the calculation result to the field type at the end
• or just cast values to double before all divisions

If you really want to allow integer/floor division in float fields, then make a // operator like in Python, or a div function.

@akien-mga Please reopen.

[AThousandShips]

If you want to change the behaviour open a proposal though I'm pretty sure there's one already if you search, this is for bugs and shouldn't be reopened

See:

• Add a way to parse all numbers as floats in Expression godot-proposals#5344
• Make division operator less error prone without a breaking change godot-proposals#1888