Misc Stuff 6 (#78)

* gcc fixes

* document random things in UnkStruct_027e09b8_00

* match func_ov001_020ba670 and rabbit docs

* match func_ov026_0211f394

* fix build issues

* match func_ov026_0211e3e0

* match func_ov026_02102924

* move structs to header

* document train rope thing

* MapObject OK and ActorRef stuff

* match more actor funcs

* fix regressions

* fix build issues

* more regressions fixes

* name keyt grab func

* UnkSubStruct19 -> CellAnimObject (based on the only assert string)

* fix build issues due to merge

* Actor::mUnk_4C -> Actor::mState + related changes

* create GetActorPtr template inline for Actor_c4

* ActorUnk_ov000_020a8bb0 -> Actor_Derived1

* actor: add comments about mUnk_50/52 and change type of mAngle

src/031_Land/MapObject/MapObjectDoorBase.cpp

@@ -486,8 +486,8 @@ ARM void MapObjectDoorBase::vfunc_5C(unk32 param1, unk32 param2) {
             this->vfunc_7C();
 
             if (this->mUnk_8A && this->mUnk_86 && param2 == 0) {
-                unk32 var_r5   = 1;
-                unk32 var_r1_2 = 2;
+                u16 var_r5   = 1;
+                s16 var_r1_2 = 2;
 
                 if (this->IsOrientedVertically()) {
                     var_r1_2 = -1;
@@ -498,7 +498,7 @@ ARM void MapObjectDoorBase::vfunc_5C(unk32 param1, unk32 param2) {
                 }
 
                 if (this->mUnk_87) {
-                    unk32 sp8;
+                    ActorRef sp8;
                     MapObject::func_ov000_0209d54c(&sp8, this, 1, &this->mPos, var_r1_2, var_r5);
                 }
             }