Get the RGB values for the pixel under the mouse.

Glenn E. Fisher gefisher at mac.com
Fri Jul 13 11:45:37 CDT 2007


Jim,

Here is some of my dumb ways to check for some particular colors in  
one of my games.

I thought it might give you some ideas.


function pixelColor lx
   set the screenMouseLoc to lx
   get the mouseColor
   set the screenMouseLoc to 0,0
   return it
end pixelColor

-- c is the RGB values as an item list
function isGreen c
   if item 2 of c > 10+item 1 of c and item 2 of c > 10+item 3 of c  
then return true
   return false
end isGreen

function isBrown c
   if item 1 of c > 30 and item 1 of c < 70 and item 2 of c > 15 and  
item 2 of c < 40\
   and item 3 of c > 7 and item 3 of c < 20 then return true
   return false
end isBrown

function isYellow c
   if c = "174,144,96" or c = "161,125,76" then return true
   return false
end isYellow

function isBeige c
   if item 1 of c > 130 and item 1 of c < 160 and item 2 of c > 90  
and item 2 of c < 130\
   and item 3 of c > 40 and item 3 of c < 80 then return true
   return false
end isBeige

Have fun,
Glenn

on July 12, 2007 7:08:54 PM CDT Jim Hurley wrote:
> To be sure of my code I started with a script to get the RGB values
> under the mouse, using a MouseMove function.
>
> To see this
>
> go url "http://home.infostations.net/jhurley/RGBunderTheMouse.rev"
>
> Unfortunately the map does not show pure colors so getting the ranges
> for each hazard zone is messy. But this utility is useful in
> exploring the range of colors.
>
> Jim

--
Glenn E. Fisher	University of Houston - Retired
22402 Diane Dr.	Spring, Tx 77373
gefisher at mac.com	http://www.uh.edu/~fisher
http://home.houston.rr.com/thegefishers/
http://homepage.mac.com/gefisher





More information about the use-livecode mailing list