Text and variables

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BobTheBuilder
Prole
Posts: 4
Joined: Wed Jan 02, 2019 10:03 am

Text and variables

Post by BobTheBuilder » Wed Jan 02, 2019 10:55 am

Is there a way of setting a text (love.graphics.print("Hello)) to a variable? For example, when I click the "g" button, a variable will increase by 10 and will cause a text to change to 10.

Snaker1
Prole
Posts: 9
Joined: Wed Dec 19, 2018 7:43 pm

Re: Text and variables

Post by Snaker1 » Wed Jan 02, 2019 10:43 pm

Not sure if I understand your question but try:

Code: Select all

love.graphics.print("This is the variable g:"..tostring(g), 0, 0)
If you have a variable like g that is a number, you need to call the function tostring to convert it into a string.

To concatenate two strings together, you use the operator .. like:

Code: Select all

name = "Tom"
new_string = "Hello:"..name
Here is an example:

Code: Select all

function love.load()
	g = 0
end
function love.mousepressed()
	g = g + 1
end
function love.draw()
	love.graphics.print("g is: "..tostring(g), 0, 0)
end
This will increase g every time the mouse is clicked.

Now you only need to include checks for the mouse position, so that g gets only increased when the mouse is in a certain area. I am sure you can do that! :)

I hope this helps!

I think you are in the wrong sub forum, by the way. ;P

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zorg
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Posts: 2722
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Location: Absurdistan, Hungary
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Re: Text and variables

Post by zorg » Wed Jan 02, 2019 10:45 pm

Hi and welcome to the forums;

yes, just use a variable, and print that.

Code: Select all

local v = 10
function love.keypressed(k)
if k == 'g' then v = v + 10 end
end
function love.draw()
love.graphics.print(v,0,0)
end
If that's not what you meant, then clarify further.

Also i hate being ninja'd by others :P

Edit:
Snaker1 wrote:
Wed Jan 02, 2019 10:43 pm
If you have a variable ... that is a number, you need to call the function tostring to convert it into a string.
That's a bit incorrect, lua itself usually coerces numbers into strings, the string concat. operator (..) certainly does.
Me and my stuff :3True Neutral Aspirant. Why, yes, i do indeed enjoy sarcastically correcting others when they make the most blatant of spelling mistakes. No bullying or trolling the innocent tho.

Snaker1
Prole
Posts: 9
Joined: Wed Dec 19, 2018 7:43 pm

Re: Text and variables

Post by Snaker1 » Wed Jan 02, 2019 11:13 pm

zorg wrote:
Wed Jan 02, 2019 10:45 pm
That's a bit incorrect, lua itself usually coerces numbers into strings, the string concat. operator (..) certainly does.
Yes, true but I tried to teach him about how to explicitly convert a string into a number because that is pretty important as well. ;)

Good point though, that (..) can implicitly convert it. Should have mentioned that.

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