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✓ ANSWER ACCEPTED

How should i use :Lerp() right so this problem won't occur?

Asked 448 views1 answers

Well so i know what is lerping and how to use it, i use it to move a gate but i have a problem with it, here is an example script:

for index = 0, 1, 0.001 do
	gate.CFrame = gate.CFrame:Lerp(end_point.CFrame, index)
	wait(0.0029)
end

So this is what i've seen everyone on devforums but the thing is that it does not lerp how i want it to, if i add print(index) to it, then it prints the index and when the index is at 0.1 the gate is already lerped at that position, i know the reason why because it lerps from gate's position that has already lerped bit forward but how can i fix it? I have made it so it breaks the loop when it hits 0.1 but is there any other way?

Thanks for spending time.

Anonymous

1 comment

0

Do you want the end position of the for loop to be 0.1? Your explanation is vague, and I see nothing wrong with your code.

Anonymous#

1 answer

✓ Accepted answer

The window within which the lerp occurs shrinks on every iteration, because it's not saved anymore. Let's say that your lerp progress goes from 0 to 1000. On the first iteration, index is 0, and nothing changes. On the second iteration, index is 0.001, and the lerp progress is updated to (1000 - 0) * 0.001, still as expected. However, on the next iteration, it's as if your lerp progress goes from 1 to 1000, so the window has shrunk. See the problem?

    -- gate.CFrame keeps getting closer to end_point.CFrame, so lerping it by 0.5
    -- or whatever value means a different thing on each iteration.
    gate.CFrame = gate.CFrame:Lerp(end_point.CFrame, index)
    wait(0.0029)

The solution is to store the original CFrame in a variable, and lerp that:

local start_point = gate.CFrame
for index = 0, 1, 0.001 do
    gate.CFrame = start_point:Lerp(end_point.CFrame, index)
    wait(0.0029)
end

If you have any questions about my explanation, please leave a comment.

AnonymousPermalink

1 comment

0

Ooh it was that easy, thanks.

Anonymous#

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