HUD question

[commander scrooge]

I'm not pro when it comes to HUD's, but I'm trying to find a way to make the lucifer cannon cross-hair to turn red when it is charged, any ideas on how this could be done?

[DeadMeat]

here you can find some similar examples: http://rfactory.org/hudexample.html

[commander scrooge]

Read the page, it dosnt answer the question (or I'm too dumb to see the answer), question still stands.