Godot

7105 readers

15 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

!roguelikedev@programming.dev

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

snowe@programming.dev

Ategon@programming.dev

Feyter@programming.dev

How to find the area of an Area2D? (sopuli.xyz)

submitted 2 weeks ago by sbeak@sopuli.xyz to c/godot@programming.dev

10 comments fedilink hide all child comments

I'm making a game where there are many Area2Ds of different countries, but I want to know the size of each country to calculate their surrender limit (bigger countries take longer to surrender, for example).

I don't want to find the area of just one collision2D as some countries have multiple (see island nations, overseas colonies...), but looping that with the children could work if finding area using AREA2ds isn't a thing.

I don't want to simply use the outermost points of a collisionshape2D and draw a big rectangle, as it would make some countries way bigger than they really are (see especially the British and French empires)

Is it possible to find the area of an Area2D? If not, is it possible to calculate the area of CollisionShape2Ds (then I could just loop through the children).

p.s. Country size will not be the only factor for surrender limit, things like equipment stockpiles and something similar to war support in HOI4 might also affect it...

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

[–] rebelsimile@sh.itjust.works 4 points 2 weeks ago

This doesn’t super solve your immediate problem, but it might help you keep progress on your game:

Remember — it’s a game. Maybe yes, you could calculate the area of the polygon you drew, and then you’d have it working like that for good. But then what happens if you want to fudge a number, like the area calculates that 2 troops can fit in France but for balance you really want 3? At that point you’re going to need to fudge the calculation, add another factor or redraw your polygon (the latter which might not be possible).

An alternative way to solve this is you can look up on wikipedia the different areas of these countries. You can assign a factor for each one (like Risk does) based on various factors - area, population, etc, but ultimately balance, that allows you to set whatever you want on each country. Not that the math isn’t exciting, but you’re probably going to end up doing this anyway after you figure the math out.

Godot

Links

Other Communities

Rules

Wormhole

Credits