Allow independent parameterization of constants/values via variables

[Theikkru]

Currently, the parameterization menu for blueprints force-merges all constants of the same values, regardless of whether they're parameterized or not. See:
viewtopic.php?f=47&t=119579
viewtopic.php?f=58&t=117000
This is dumb. It's also very problematic for common values like 0 and 1, which tend to be used in multiple places in blueprints for very different purposes.
Please allow us to parameterize numerical values, like we can for signal channels, if the "Show parameters in selection lists" interface setting is checked, like so:

var.png (94.15 KiB) Viewed 310 times

[Theikkru]

I thought some more about implementation, and realized that by shuffling the UI around a bit, this idea could be extended elegantly to include run-time modification of variable values via self-referential formulas, which would coincidentally add support for another idea/suggestion I saw:

self-ref.png (28.08 KiB) Viewed 282 times

The order of operations would work like this:
1. Variables (F) are initialized to defaults (1).
2. User is prompted for input (let's assume input of 4 for F).
3. Formulas are evaluated in listed order (so F=[4]^2=16).
4. final values of variables are posted to combinators, etc.

This would enable 3 additional behaviors:
1. Raw user input can be captured in a variable without having to immediately post it to a machine.
2. Self-referential formulas can be used to modify variable values after capture, but before posting.
3. All variables are initialized before any formulas are evaluated, so any formula can refer to any variable (though the order of the formulas will affect the math)

[Syriusz]

First time, I lost my progress because I clicked right mouse button.
Second time, I wanted to save my progress to avoid the scenario from first. And then it merged two parameters together that I wanted to keep distinct... It happened because I changed one value without thinking.
Devs made a great tool, but it is so frustrating to work with. Every change requires modification outside blue print, making new blueprint and setting everything from scratch. It's so sad that you cannot interact with blueprint directly. We can remove entities from blueprint with right mouse button, why not click left to edit everything? Set recipes to parameters, edit signals etc. The list should be mostly to set names and formulas or to see everything in one place. It would be even greater if we could add connections and maybe entities but just editing signals and recipes would make huge difference.

[nova4x]

I thought some more about implementation, and realized that by shuffling the UI around a bit, this idea could be extended elegantly to include run-time modification of variable values via self-referential formulas, which would coincidentally add support for another idea/suggestion I saw:
self-ref.png
The order of operations would work like this:
1. Variables (F) are initialized to defaults (1).
2. User is prompted for input (let's assume input of 4 for F).
3. Formulas are evaluated in listed order (so F=[4]^2=16).
4. final values of variables are posted to combinators, etc.

This would enable 3 additional behaviors:
1. Raw user input can be captured in a variable without having to immediately post it to a machine.
2. Self-referential formulas can be used to modify variable values after capture, but before posting.
3. All variables are initialized before any formulas are evaluated, so any formula can refer to any variable (though the order of the formulas will affect the math)

I'm from that thread you mentioned, I agree 100%. I tried doing this self referential thing myself because I just figured it should work like that. Seems silly that variables are only able to reference other things in the blueprint and you can't create a variable to work with.