******PROBLEM SOLVED******

Using c_trace to determine the distance to the ground is a perfectly fine, working way to simulate gravity. Since the c_trace is stored in variable, "distance_to_ground," it should not be affected by a second c_trace. Just make sure the variable is a local variable and not a global variable!

You should also place gravity_vars in the abs_vector of the c_move(my, rel_vec, vector(0,0,gravity_var), MODES);

Also The_KING like I said before you will need to use more than one c_trace to do what you want . 1 for the target dot, 1 for shooting and 1 for gravity. It is ok to use more then one c_trace but you need to do logic from each c_trace right after the c_trace because the next one will modify the same data that was set by the pervious one.

Like CanadianDavid says you need to be using local variables and entity skill(which are local variables too)

***PROBLEM SOLVED***

@ THE_KING, please do not modify your original posts as they are the reason why the thread exists.
This will be archived with every other post so it would be helpful for folks with similar probs to yours to read the original question in order to understand the subsequent replies.

You of course, dont have to but do consider what the ramifications are for removing the question for other users who are definitely going to be finding they have the same prob and if your question was still there, they would find this thread great.

Cheers....