You're right after I just looked at global script I found Fog-active is 1 .
I'm really sorry because I could understand it by myself.
I didn't think about that because my mind is really busy these days.
By this I think the attention in the following is very important.
Attention:When you are testing your game and you see somethings are hard to see in a far way just go to your File tab in the editor and open Build game then open Level setting tab and edit your global script and change Fog-active from 1 to 0 and everything will be solve.
(This is for someone with the same problem like me)
Have our guns was a mistake!!!
I am PaYaM