I was looking for a fast way to switch between colors for my tetris project, so i tried to find a faster way of choosing a color and setting it with setColorRGB(). I don't know if it's the fastest way, but it goes nice and the colde is tidy
It's only to get the most basic colors: Red, Green, Blue, turquoise, pink, orange and yellow.

This is what you would have normally (or better, i had):
color = math.random(1,7)
if color == 1 then
gc:setColorRGB(255,0,0)
elseif color == 2 then
gc:setColorRGB(0,255,0)
elseif color == 3 then
gc:setColorRGB(0,0,255)
elseif color == 4 then
gc:setColorRGB(255,0,255)
elseif color == 5 then
gc:setColorRGB(0,255,255)
elseif color == 6 then
gc:setColorRGB(255,255,0)
elseif color == 7 then
gc:setColorRGB(255,150,0)
end

and this is what you get now:
color=math.random(1,7)
colortable={0,0,0}
if color<=3 then
         colortable[color]=255
elseif color==4 or color==5 then
         colortable[3]=255
         colortable[color-3]=255
elseif color==6 then
         colortable[1]=255
         colortable[2]=255
else
       colortable[1]=255
         colortable[2]=150
end
gc:setColorRGB(colortable[1],colortable[2],colortable[3])

both results are the same (luckily xp )



does anyone know if this is more relevant than the upper one?

wow, that looks really easy thanks! now my code will finally get a little more tidy

but i do not understand the unpack method, what does it do? (always wanting to learn something new xp)

oh, thanks a lot, that might be useful for some other functions too

Apcalc, mind sharing your technique for your Axe tunnel? Becuase your game seemed to flash between colors even faster than in  the screenshot above. Both are nice nonetheless, though.