Harmonic Motion

[Nixola]

Here's a .love file my teacher asked me to code, it has a clock, a line that spins and a graph.
Actually I made this post only to ask you: is there a way to make the graph more 'lightly'? It's waaaaaaaaaay too heavy drawin' it like this...

[Codex]

It's not working for some reason?

[Jasoco]

Works for me. I just don't understand the question. "Lightly"? You mean line thickness? Or color? Because that's all I can gather.

[Robin]

If you press "alt", apparently it starts showing a graph. It took me a while to find out.

[richapple]

is there a way to make the graph more 'lightly'? It's waaaaaaaaaay too heavy drawin' it like this...

I don't clearly understand what you mean, but this is what I did:

The way you draw it:

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for i, v in ipairs(points) do
	love.graphics.circle('fill', v.y, (v.x/2)+332, 1, 4)
end

The way I did it:

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love.graphics.setLineWidth(2)

.. drawing clock and lines

love.graphics.setLineWidth(1)
for i, v in ipairs(points) do
	if i > 1 then
		love.graphics.line(v.y, (v.x/2)+332, points[i-1].y, (points[i-1].x/2)+332)
	end
end

And here's how it looks:
On the left it's how you draw it, by drawing circle every point,
And on the right it's how I draw it, by drawing line through every current and previous point.

Updated, forgot to change line width

comp.png (5.16 KiB) Viewed 2546 times

Looks better, what you think?


Also I think it would be better to shorten this

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if k == '1' or k == '2' or k == '3' or k == '4' or k == '5' or k == '6' or k == '7' or k == '8' or k == '9' then
	speed = tonumber(k)
end

to this:

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if type(tonumber(k)) == "number" then
	speed = k
end

[Robin]

That would be:

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    if type(tonumber(k)) == "number" then
       speed = tonumber(k)
    end

Also, this includes 0, which might not be what the OP wants.

Alternative suggestion:

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    local nk = tonumber(k)
    if type(nk) == "number" and nk > 0 then
       speed = nk
    end

[Nixola]

With 'more lightly' I meant a faster way, 'cause on my netbook (and on my school pcs) showing the graph kills the framerate; that's why I hid the graph by default
(with Ctrl you can hide the variables, and with AltGR you toggle both)
@RichApple and Robin: thanks, I forgot it ^^' I think (and hope) that's faster than 9 ifs
@RichApple only: I decided not to use lines 'cause my pc can't show 1px-wide horizontal or vertical lines, and I forgot that it can show 1px-wide non-horizontal nor vertical lines...

[bartbes]

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local nk = tonumber(k) or k

[tentus]

As I recall, can't love.graphics.line be given any number of coordinates? (Greater than or equal two, of course.) You could change up how the points table works by a little and then pass the whole thing into a single love.graphics.line call.

Here, I've added an example to the wiki that should help you understand. What you'd need to do specifically is replace this:

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table.insert(points, 1, {x = x, y = rtimer*2})

with this:

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points[#points + 1] = rtimer*2
points[#points + 1] = (x / 2) + 332

And then replace this:

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for i, v in ipairs(points) do
	love.graphics.circle('fill', v.y, (v.x/2)+332, 1, 4)
end

with this:

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love.graphics.line(points)

That should render faster. I'm having trouble telling a difference, but then again, I have a full desktop at my disposal- a netbook might see a dramatic improvement.

[Robin]

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local nk = tonumber(k) or k

You mean

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speed = tonumber(k) or speed