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What loop to use when CFraming part around player?

Asked by
roussimoff 17
5 years ago

Just a background; I've been scripting for about a year now although I'm far from good as I experience alot of problems even on simple things, I find problems sometimes hard to catch up for me. Anywho,

I've been wanting to make multiple parts manipulate around a player like so:

https://gyazo.com/0abb40948a54c613b3fb26f112698987

(the work of a player named literomancer)

And granted they're parts being CFramed around the player, looping, what is the efficient way to looping parts being CFramed nowadays? Like, what loop do I use to achieve an efficient output?

I've tried using the RunService, but I don't even know, I found articles that really made me doubt about it.

Thanks!

1 answer

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2
Answered by
Fifkee 2017 Community Moderator Moderation Voter
5 years ago

Events

RunService.RenderStepped runs every frame.

view source
1local connection;
2connection = game:GetService('RunService').RenderStepped:Connect(function(dt)
3    if (bad) then connection:Disconnect() end;
4end);

RunService.Heartbeat runs every frame after the physics simulation completes.

view source
1local connection;
2connection = game:GetService('RunService').Heartbeat:Connect(function(dt)
3    if (bad) then connection:Disconnect() end;
4end);

RunService.Stepped runs every frame prior to the physics simulation.

view source
1local connection;
2connection = game:GetService('RunService').Stepped:Connect(function(dt)
3    if (bad) then connection:Disconnect() end;
4end);

Loops

An iterator loop runs for every incremention of x to y via incrementor z.

view source
1for i = 0, 1, 0.5 do
2    ...
3end

A while loop runs until the given condition is truthy.

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1while ... do
2 
3end

A function loop is bad:

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1function isbad()
2    this()
3end
4function this()
5    isbad();
6end
view source
1function this_is_bad()
2    this_is_bad();
3end

A repeat loop runs until the given condition provided after the until keyword is truthy.

view source
1repeat
2 
3until not bad;

Warning and Trivia

Make sure you provide a yielding function for your non-event loops. They will crash your game.

In the script builder community, which is typically centered around CFrame animation, they use a for loop. This is because CFrame:Lerp, the Linear, intERPolation function requires an alpha that signifies the progress between CFrameA and CFrameB, which can easily be given through for i = 0, 1, 0.1 do as i would be the given progress.

wait() runs according to the built-in 30hz roblox scheduler. Recommended not to use for quick action.

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