Lua: finished inputbox with negative and decimal inputs. Added to the repository more than 20(!) new scripts by DawnBringer

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1357 416bcca6-2ee7-4201-b75f-2eb2f807beb1

scripts/bru_db_GrayscaleAvg.lua

@@ -0,0 +1,18 @@
+--BRUSH Remap: Grayscale (average)
+--by Richard Fhager 
+--http://hem.fyristorg.com/dawnbringer/
+
+
+w, h = getbrushsize()
+
+for x = 0, w - 1, 1 do
+ for y = 0, h - 1, 1 do
+   
+   r, g, b = getcolor(getbrushpixel(x,y))
+
+   a = (r+g+b)/3
+
+   putbrushpixel(x, y, matchcolor(a,a,a));
+
+ end
+end