Godot

6028 readers

150 users here now

Welcome to the programming.dev Godot community!

This is a place where you can discuss about anything relating to the Godot game engine. Feel free to ask questions, post tutorials, show off your godot game, etc.

Make sure to follow the Godot CoC while chatting

We have a matrix room that can be used for chatting with other members of the community here

Other Communities

Rules

Posts need to be in english
Posts with explicit content must be tagged with nsfw
We do not condone harassment inside the community as well as trolling or equivalent behaviour
Do not post illegal materials or post things encouraging actions such as pirating games

We have a four strike system in this community where you get warned the first time you break a rule, then given a week ban, then given a year ban, then a permanent ban. Certain actions may bypass this and go straight to permanent ban if severe enough and done with malicious intent

Wormhole

[email protected]

Credits

The icon is a modified version of the official godot engine logo (changing the colors to a gradient and black background)
The banner is from Godot Design

founded 2 years ago

MODERATORS

Ategon

snowe

Feyter

How would I get a relative point between a min and max value that could be represented as a float between 0.0 and 1.0? (lemmy.world)

submitted 1 year ago by [email protected] to c/godot

15 comments fedilink hide all child comments

I have a min and max position of an object and I want to represent an arbitrary point between them as a float between 0.0 and 1.0. This feels relatively basic math, but I can't quite figure out what I need to do with this. Is there a special name for this sort of thing? Also, are there any built-in methods that would be useful for this?

you are viewing a single comment's thread
view the rest of the comments

[–] o11c 2 points 1 year ago (3 children)

Related, note that division is much slower than multiplication.

Instead of:

n / d

see if you can refactor it to:

n * (1.0/d)

where that inverse can then be hoisted out of loops.

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Just to clarify, the value in parentheses must be precalculated.

For example, instead of:

n / 2

Do:

n * 0.5

[–] [email protected] 2 points 1 year ago (1 children)

This is something for compiler writers to worry about.

[–] o11c 1 points 1 year ago

Compilers are generally forbidden from optimizing floating-point arithmetic, since it can change precision.

[–] [email protected] 1 points 1 year ago

If multiplication vs division is causing perf issues you fucked up somewhere or shouldn't be asking on Lemmy for help because your performance critical system is of the safety and health type.

I've never had division actually be a real issue.

Godot

Links

Other Communities

Rules

Wormhole

Credits