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How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 02:58
by LEDZ
In-game text colour is subject to the following handle:
\255\numR\numG\numB
Caveats:
The numbers RGB cannot end with 0. Not sure exactly why but I assume its just a bug in the engine.
There is no support for Alpha; the \255 at the start is not an Alpha (at least it doesn't work as such) it is merely a character handle for colourizing.
So:
Code: Select all
Spring.Echo("\255\255\1\1This text is red")
Spring.Echo("\255\1\255\1This text is green")
Spring.Echo("\255\1\1\255This text is blue")
Spring.Echo("\255\1\255\127This text is Spring Green!")
And variations on this.
Below is a function that gets a player's colour from the game and converts it into the above handle for text.
Code: Select all
function colorNames(teamID)
nameColorR,nameColorG,nameColorB,nameColorA = spGetTeamColor(teamID)
R255 = math.floor(nameColorR*255)
G255 = math.floor(nameColorG*255)
B255 = math.floor(nameColorB*255)
if ( R255%10 == 0) then
R255 = R255+1
end
if( G255%10 == 0) then
G255 = G255+1
end
if ( B255%10 == 0) then
B255 = B255+1
end
return "\255"..string.char(R255)..string.char(G255)..string.char(B255) --works thanks to zwzsg
end
This can be then appended to the beginning of a message to colour it:
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playerColor = colorNames(Spring.GetMyTeamID)
message = playerColor.."This text is the same colour as me!"
Spring.SendCommands("say "..string.format(message))
Re: How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 03:58
by CarRepairer
To be more general, see the color2incolor and incolor2color functions here:
http://code.google.com/p/zero-k/source/ ... s/util.lua
Re: How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 06:33
by Niobium
Wow, that code sucks. It has almost as many problems as lines.
For reference:
Code: Select all
function color2incolor(r,g,b,a)
local colortable = {r,g,b,a}
if type(r) == 'table' then
colortable = r
end
local r,g,b,a = unpack(colortable)
if r == 0 then r = 0.01 end
if g == 0 then g = 0.01 end
if b == 0 then b = 0.01 end
--if a == 0 then a = 0.01 end --seems transparent is bad in label text
a = 1
local inColor = '\255\255\255\255'
if r then
inColor = string.char(a*255) .. string.char(r*255) .. string.char(g*255) .. string.char(b*255)
end
return inColor
end
- Takes an alpha argument when alpha isn't supported (The argument is even overriden in the code before being read)
- Packs arguments into a table... then immediately unpacks them
- Checks for r/g/b == 0 and replaces with 0.01 as a non-clear attempt to solve the null char problem.
- Misses the fact that very small non-zero r/g/b values still give the null char (string.char(0.0001) == null char)
- Doesn't handle other special characters, like char(10) which will give a new line.
- nil-checks arguments at the very end of the function
- Doesn't understand what the first character (255) means, thinks its alpha (Retarded)
- Passes decimal values to string.char
Re: How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 07:36
by CarRepairer
Nice. Code isn't retarded, people are. Stop following me around in threads just because I kicked your ass at mex detection. I offered an idea applicable to this topic and the code itself is secondary. You offer childish name calling and not a single solution to what you deem as retarded.
Re: How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 10:40
by knorke
Beside messages, unit description (in tooltip) can be colored too.
Not sure what else?
Re: How to: Set text colour (color) for markers/messages
Posted: 26 May 2012, 13:14
by LEDZ
Thanks CarRepairer, I believe I saw that very function somewhere about year ago when I first wrote something to colour text.
Niobium, your points are very true. A bit cutting though. It may be a bit wrong but you don't have to lambast anyone over it.
Knorke, I use it in a Unit Marker widget that I made. It makes the colour of the marker text the same colour as the unit owner:
Re: How to: Set text colour (color) for markers/messages
Posted: 27 May 2012, 00:29
by Niobium
LEDZ wrote:Niobium, your points are very true. A bit cutting though. It may be a bit wrong but you don't have to lambast anyone over it.
I don't know or care who wrote the code. My post says nothing about anyone, just the quality of the code.
I'm not interested in who is a good or bad at coding, or who is better at mex detection, just that objectively buggy code like the code linked doesn't get used in peoples projects because they assume its OK and copy-pasting is easy.