I've always enjoyed the way that warlocks play, but when my group moved on to Pathfinder, we did so as part of a total break from a bad GM/player relationship (The old GM quit, feeling "usurped," in his own words), and, as the major reason that all of this went down was hours and hours of unproductive rules bickering, the new GM wants absolutely nothing to do with the 3.5 rules. So my question is, is there any way to hack together something that plays like a warlock using only official Pathfinder material? The limited powerset/unlimited casting/"spell cannon" feel is what I'm looking for, and the general out-of-place/weirdo flavor would also be nice. The answer seems to be no, but I am just not the rules scholar that I once was. Any help in this endeavor would be much appreciated.