More intelligent autoaim

The current autoaim available in clients from this site are leaps and bounds better than the first few incarnations: they track the most powerful enemy within range, and they ignore most stationery turrets (and statues in the castle) that were dead giveaways in older builds. But I would like to know if there was a way to have aim bots less favor the golems in godlands, not fire when there is a wall in the way, or add a slight variance from perfect trajectory?

* Exclude golems in god lands : should be possible by checking if target type/name match one the rocks constructs
* Not fire when there is a wall in the way : could be tricky to do. I mean, it may be possible BUT i do not see a simple way to do that.
We need to calculate bullet trajectory, check if there is wall object are in the "way"... I' am not an aimbot specialist ..
Moreover all this calculations will have an impact on performances...

Simply if you could know that the shoot is going against a wall, you could predict if shoot will hit enemy, and If it's so, shoot, lool, perfect aim. I think this could be LoL!