rounded rectangle

[unek]

Hello. How can I simply draw semi-transparent rounded rectangle? Most of code snippets I found on forums don't work.

Thanks for help.

[Nsmurf]

For semi transparency use:

Code: Select all

love.graphics.setColor(255, 255, 255, a)
--draw something
love.graphics.setColor(255, 255, 255, 255)

where a is the transparency from 1 (transparent) to 255 (solid).

for a rounded rectangle, I would just use a image.

[kikito]

for a rounded rectangle, I would just use a image.

Try a polygon. (Also, forum search is your friend )

[unek]

for a rounded rectangle, I would just use a image.

Try a polygon. (Also, forum search is your friend )

The selected attachment does not exist anymore.

[Nsmurf]

The selected attachment does not exist anymore.

But it's still good to know about a polygon. How much better/faster is it to draw a polygon as opposed to an image?

[Boolsheet]

I made this once. Perhaps you can use it.

Code: Select all

local right = 0
local left = math.pi
local bottom = math.pi * 0.5
local top = math.pi * 1.5

function rwrc(x, y, w, h, r)
	r = r or 15
	love.graphics.rectangle("fill", x, y+r, w, h-r*2)
	love.graphics.rectangle("fill", x+r, y, w-r*2, r)
	love.graphics.rectangle("fill", x+r, y+h-r, w-r*2, r)
	love.graphics.arc("fill", x+r, y+r, r, left, top)
	love.graphics.arc("fill", x + w-r, y+r, r, -bottom, right)
	love.graphics.arc("fill", x + w-r, y + h-r, r, right, bottom)
	love.graphics.arc("fill", x+r, y + h-r, r, bottom, left)
end

You can call it like this rwrc(10, 50, 200, 350, 40).

[unek]

Thanks Boolsheet! That is exactly what I was looking for!

[kikito]

Omf. I forgot that LÖVE can draw arcs now.

Back in my time, we had to calculate segment coordinates with our bare trigonometrics functions. You youngsters have it very easy nowadays .

[Xgoff]

Back in my time, we had to calculate segment coordinates with our bare trigonometrics functions.

well, you still do if you don't want those extra two lines connecting the center point in line draw mode

[Robin]

Apparently, this is the third time I have to upload these things:

roundbox.love

(631 Bytes) Downloaded 280 times

roundrect.lua

(958 Bytes) Downloaded 322 times