diff --git a/src/p_local.h b/src/p_local.h
index 9644e7a244d434bf6f44d26d4a90e9cbf2fea656..5f47f8d05946c13262e5711f2f161e7c06d518b7 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -307,22 +307,14 @@ boolean P_CheckSkyHit(mobj_t *mo, line_t *line);
 void P_PushableThinker(mobj_t *mobj);
 void P_SceneryThinker(mobj_t *mobj);
 
-
-fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect);
-fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect);
-#define P_GetFloorZ(mobj, sector, x, y, line) P_MobjFloorZ(mobj, sector, NULL, x, y, line, false, false)
-#define P_GetCeilingZ(mobj, sector, x, y, line) P_MobjCeilingZ(mobj, sector, NULL, x, y, line, true, false)
-#define P_GetFOFTopZ(mobj, sector, fof, x, y, line) P_MobjCeilingZ(mobj, sectors + fof->secnum, sector, x, y, line, false, false)
-#define P_GetFOFBottomZ(mobj, sector, fof, x, y, line) P_MobjFloorZ(mobj, sectors + fof->secnum, sector, x, y, line, true, false)
-#define P_GetSpecialBottomZ(mobj, src, bound) P_MobjFloorZ(mobj, src, bound, mobj->x, mobj->y, NULL, src != bound, true)
-#define P_GetSpecialTopZ(mobj, src, bound) P_MobjCeilingZ(mobj, src, bound, mobj->x, mobj->y, NULL, src == bound, true)
-
-fixed_t P_CameraFloorZ(camera_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect);
-fixed_t P_CameraCeilingZ(camera_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect);
-#define P_CameraGetFloorZ(mobj, sector, x, y, line) P_CameraFloorZ(mobj, sector, NULL, x, y, line, false, false)
-#define P_CameraGetCeilingZ(mobj, sector, x, y, line) P_CameraCeilingZ(mobj, sector, NULL, x, y, line, true, false)
-#define P_CameraGetFOFTopZ(mobj, sector, fof, x, y, line) P_CameraCeilingZ(mobj, sectors + fof->secnum, sector, x, y, line, false, false)
-#define P_CameraGetFOFBottomZ(mobj, sector, fof, x, y, line) P_CameraFloorZ(mobj, sectors + fof->secnum, sector, x, y, line, true, false)
+fixed_t P_MobjFloorZ(sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, fixed_t radius, line_t *line, boolean lowest, boolean perfect);
+fixed_t P_MobjCeilingZ(sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, fixed_t radius, line_t *line, boolean lowest, boolean perfect);
+#define P_GetFloorZ(mobj, sector, x, y, line) P_MobjFloorZ(sector, NULL, x, y, mobj->radius, line, false, false)
+#define P_GetCeilingZ(mobj, sector, x, y, line) P_MobjCeilingZ(sector, NULL, x, y, mobj->radius, line, true, false)
+#define P_GetFOFTopZ(mobj, sector, fof, x, y, line) P_MobjCeilingZ(sectors + fof->secnum, sector, x, y, mobj->radius, line, false, false)
+#define P_GetFOFBottomZ(mobj, sector, fof, x, y, line) P_MobjFloorZ(sectors + fof->secnum, sector, x, y, mobj->radius, line, true, false)
+#define P_GetSpecialBottomZ(mobj, src, bound) P_MobjFloorZ(src, bound, mobj->x, mobj->y, mobj->radius, NULL, src != bound, true)
+#define P_GetSpecialTopZ(mobj, src, bound) P_MobjCeilingZ(src, bound, mobj->x, mobj->y, mobj->radius, NULL, src == bound, true)
 
 boolean P_InsideANonSolidFFloor(mobj_t *mobj, ffloor_t *rover);
 boolean P_CheckDeathPitCollide(mobj_t *mo);
diff --git a/src/p_map.c b/src/p_map.c
index 7887c117de56907d7a51eccb3715ec0a32e14d61..b155e827926040b0db9966ed868797a6ff81c85f 100644
--- a/src/p_map.c
+++ b/src/p_map.c
@@ -2362,9 +2362,9 @@ boolean P_CheckCameraPosition(fixed_t x, fixed_t y, camera_t *thiscam)
 	// that contains the point.
 	// Any contacted lines the step closer together
 	// will adjust them.
-	tmfloorz = tmdropoffz = P_CameraGetFloorZ(thiscam, newsubsec->sector, x, y, NULL);
+	tmfloorz = tmdropoffz = P_GetFloorZ(thiscam, newsubsec->sector, x, y, NULL);
 
-	tmceilingz = P_CameraGetCeilingZ(thiscam, newsubsec->sector, x, y, NULL);
+	tmceilingz = P_GetCeilingZ(thiscam, newsubsec->sector, x, y, NULL);
 
 	// Cameras use the heightsec's heights rather then the actual sector heights.
 	// If you can see through it, why not move the camera through it too?
@@ -2394,8 +2394,8 @@ boolean P_CheckCameraPosition(fixed_t x, fixed_t y, camera_t *thiscam)
 			if (!(rover->fofflags & FOF_BLOCKOTHERS) || !(rover->fofflags & FOF_EXISTS) || !(rover->fofflags & FOF_RENDERALL) || (rover->master->frontsector->flags & MSF_NOCLIPCAMERA))
 				continue;
 
-			topheight = P_CameraGetFOFTopZ(thiscam, newsubsec->sector, rover, x, y, NULL);
-			bottomheight = P_CameraGetFOFBottomZ(thiscam, newsubsec->sector, rover, x, y, NULL);
+			topheight = P_GetFOFTopZ(thiscam, newsubsec->sector, rover, x, y, NULL);
+			bottomheight = P_GetFOFBottomZ(thiscam, newsubsec->sector, rover, x, y, NULL);
 
 			delta1 = thiscam->z - (bottomheight
 				+ ((topheight - bottomheight)/2));
@@ -2587,8 +2587,8 @@ boolean P_TryCameraMove(fixed_t x, fixed_t y, camera_t *thiscam)
 	}
 	else
 	{
-		tmfloorz = P_CameraGetFloorZ(thiscam, thiscam->subsector->sector, x, y, NULL);
-		tmceilingz = P_CameraGetCeilingZ(thiscam, thiscam->subsector->sector, x, y, NULL);
+		tmfloorz = P_GetFloorZ(thiscam, thiscam->subsector->sector, x, y, NULL);
+		tmceilingz = P_GetCeilingZ(thiscam, thiscam->subsector->sector, x, y, NULL);
 	}
 
 	// the move is ok,
diff --git a/src/p_maputl.c b/src/p_maputl.c
index 82b86471522ee3b2cbeebbedfb1e28c1c4438501..9d971f0e330613eced328c8c573cad52fec5444c 100644
--- a/src/p_maputl.c
+++ b/src/p_maputl.c
@@ -317,8 +317,8 @@ void P_CameraLineOpening(line_t *linedef)
 	}
 	else
 	{
-		frontfloor   = P_CameraGetFloorZ  (mapcampointer, front, tmx, tmy, linedef);
-		frontceiling = P_CameraGetCeilingZ(mapcampointer, front, tmx, tmy, linedef);
+		frontfloor   = P_GetFloorZ  (mapcampointer, front, tmx, tmy, linedef);
+		frontceiling = P_GetCeilingZ(mapcampointer, front, tmx, tmy, linedef);
 	}
 	if (back->camsec >= 0)
 	{
@@ -334,8 +334,8 @@ void P_CameraLineOpening(line_t *linedef)
 	}
 	else
 	{
-		backfloor = P_CameraGetFloorZ(mapcampointer, back, tmx, tmy, linedef);
-		backceiling = P_CameraGetCeilingZ(mapcampointer, back, tmx, tmy, linedef);
+		backfloor = P_GetFloorZ(mapcampointer, back, tmx, tmy, linedef);
+		backceiling = P_GetCeilingZ(mapcampointer, back, tmx, tmy, linedef);
 	}
 
 	{
@@ -377,8 +377,8 @@ void P_CameraLineOpening(line_t *linedef)
 					if (!(rover->fofflags & FOF_BLOCKOTHERS) || !(rover->fofflags & FOF_RENDERALL) || !(rover->fofflags & FOF_EXISTS) || (rover->master->frontsector->flags & MSF_NOCLIPCAMERA))
 						continue;
 
-					topheight = P_CameraGetFOFTopZ(mapcampointer, front, rover, tmx, tmy, linedef);
-					bottomheight = P_CameraGetFOFBottomZ(mapcampointer, front, rover, tmx, tmy, linedef);
+					topheight = P_GetFOFTopZ(mapcampointer, front, rover, tmx, tmy, linedef);
+					bottomheight = P_GetFOFBottomZ(mapcampointer, front, rover, tmx, tmy, linedef);
 
 					delta1 = abs(mapcampointer->z - (bottomheight + ((topheight - bottomheight)/2)));
 					delta2 = abs(thingtop - (bottomheight + ((topheight - bottomheight)/2)));
@@ -401,8 +401,8 @@ void P_CameraLineOpening(line_t *linedef)
 					if (!(rover->fofflags & FOF_BLOCKOTHERS) || !(rover->fofflags & FOF_RENDERALL) || !(rover->fofflags & FOF_EXISTS) || (rover->master->frontsector->flags & MSF_NOCLIPCAMERA))
 						continue;
 
-					topheight = P_CameraGetFOFTopZ(mapcampointer, back, rover, tmx, tmy, linedef);
-					bottomheight = P_CameraGetFOFBottomZ(mapcampointer, back, rover, tmx, tmy, linedef);
+					topheight = P_GetFOFTopZ(mapcampointer, back, rover, tmx, tmy, linedef);
+					bottomheight = P_GetFOFBottomZ(mapcampointer, back, rover, tmx, tmy, linedef);
 
 					delta1 = abs(mapcampointer->z - (bottomheight + ((topheight - bottomheight)/2)));
 					delta2 = abs(thingtop - (bottomheight + ((topheight - bottomheight)/2)));
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 16ca0c6345284f8e3aefac90d04e9d2d1b69c6d4..83d4751768f68415566fb223da2f27e26093661d 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1092,9 +1092,8 @@ static fixed_t HighestOnLine(fixed_t radius, fixed_t x, fixed_t y, line_t *line,
 		);
 }
 
-fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect)
+fixed_t P_MobjFloorZ(sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, fixed_t radius, line_t *line, boolean lowest, boolean perfect)
 {
-	I_Assert(mobj != NULL);
 	I_Assert(sector != NULL);
 
 	if (sector->f_slope) {
@@ -1103,14 +1102,14 @@ fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t
 
 		// Get the corner of the object that should be the highest on the slope
 		if (slope->d.x < 0)
-			testx = mobj->radius;
+			testx = radius;
 		else
-			testx = -mobj->radius;
+			testx = -radius;
 
 		if (slope->d.y < 0)
-			testy = mobj->radius;
+			testy = radius;
 		else
-			testy = -mobj->radius;
+			testy = -radius;
 
 		if ((slope->zdelta > 0) ^ !!(lowest)) {
 			testx = -testx;
@@ -1136,10 +1135,10 @@ fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t
 			else
 				finalheight = INT32_MIN;
 
-			bbox[BOXLEFT] = x-mobj->radius;
-			bbox[BOXRIGHT] = x+mobj->radius;
-			bbox[BOXTOP] = y+mobj->radius;
-			bbox[BOXBOTTOM] = y-mobj->radius;
+			bbox[BOXLEFT] = x-radius;
+			bbox[BOXRIGHT] = x+radius;
+			bbox[BOXTOP] = y+radius;
+			bbox[BOXBOTTOM] = y-radius;
 			for (i = 0; i < boundsec->linecount; i++) {
 				ld = boundsec->lines[i];
 
@@ -1151,9 +1150,9 @@ fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t
 					continue;
 
 				if (lowest)
-					finalheight = min(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, true));
+					finalheight = min(finalheight, HighestOnLine(radius, x, y, ld, slope, true));
 				else
-					finalheight = max(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, false));
+					finalheight = max(finalheight, HighestOnLine(radius, x, y, ld, slope, false));
 			}
 
 			return finalheight;
@@ -1164,14 +1163,13 @@ fixed_t P_MobjFloorZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t
 		if (line == NULL)
 			return P_GetSlopeZAt(slope, x, y);
 
-		return HighestOnLine(mobj->radius, x, y, line, slope, lowest);
+		return HighestOnLine(radius, x, y, line, slope, lowest);
 	} else // Well, that makes it easy. Just get the floor height
 		return sector->floorheight;
 }
 
-fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect)
+fixed_t P_MobjCeilingZ(sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, fixed_t radius, line_t *line, boolean lowest, boolean perfect)
 {
-	I_Assert(mobj != NULL);
 	I_Assert(sector != NULL);
 
 	if (sector->c_slope) {
@@ -1180,14 +1178,14 @@ fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed
 
 		// Get the corner of the object that should be the highest on the slope
 		if (slope->d.x < 0)
-			testx = mobj->radius;
+			testx = radius;
 		else
-			testx = -mobj->radius;
+			testx = -radius;
 
 		if (slope->d.y < 0)
-			testy = mobj->radius;
+			testy = radius;
 		else
-			testy = -mobj->radius;
+			testy = -radius;
 
 		if ((slope->zdelta > 0) ^ !!(lowest)) {
 			testx = -testx;
@@ -1213,10 +1211,10 @@ fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed
 			else
 				finalheight = INT32_MIN;
 
-			bbox[BOXLEFT] = x-mobj->radius;
-			bbox[BOXRIGHT] = x+mobj->radius;
-			bbox[BOXTOP] = y+mobj->radius;
-			bbox[BOXBOTTOM] = y-mobj->radius;
+			bbox[BOXLEFT] = x-radius;
+			bbox[BOXRIGHT] = x+radius;
+			bbox[BOXTOP] = y+radius;
+			bbox[BOXBOTTOM] = y-radius;
 			for (i = 0; i < boundsec->linecount; i++) {
 				ld = boundsec->lines[i];
 
@@ -1228,9 +1226,9 @@ fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed
 					continue;
 
 				if (lowest)
-					finalheight = min(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, true));
+					finalheight = min(finalheight, HighestOnLine(radius, x, y, ld, slope, true));
 				else
-					finalheight = max(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, false));
+					finalheight = max(finalheight, HighestOnLine(radius, x, y, ld, slope, false));
 			}
 
 			return finalheight;
@@ -1241,165 +1239,11 @@ fixed_t P_MobjCeilingZ(mobj_t *mobj, sector_t *sector, sector_t *boundsec, fixed
 		if (line == NULL)
 			return P_GetSlopeZAt(slope, x, y);
 
-		return HighestOnLine(mobj->radius, x, y, line, slope, lowest);
+		return HighestOnLine(radius, x, y, line, slope, lowest);
 	} else // Well, that makes it easy. Just get the ceiling height
 		return sector->ceilingheight;
 }
 
-// Now do the same as all above, but for cameras because apparently cameras are special?
-fixed_t P_CameraFloorZ(camera_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect)
-{
-	I_Assert(mobj != NULL);
-	I_Assert(sector != NULL);
-
-	if (sector->f_slope) {
-		fixed_t testx, testy;
-		pslope_t *slope = sector->f_slope;
-
-		// Get the corner of the object that should be the highest on the slope
-		if (slope->d.x < 0)
-			testx = mobj->radius;
-		else
-			testx = -mobj->radius;
-
-		if (slope->d.y < 0)
-			testy = mobj->radius;
-		else
-			testy = -mobj->radius;
-
-		if ((slope->zdelta > 0) ^ !!(lowest)) {
-			testx = -testx;
-			testy = -testy;
-		}
-
-		testx += x;
-		testy += y;
-
-		// If the highest point is in the sector, then we have it easy! Just get the Z at that point
-		if (R_IsPointInSector(boundsec ? boundsec : sector, testx, testy))
-			return P_GetSlopeZAt(slope, testx, testy);
-
-		// If boundsec is set, we're looking for specials. In that case, iterate over every line in this sector to find the TRUE highest/lowest point
-		if (perfect) {
-			size_t i;
-			line_t *ld;
-			fixed_t bbox[4];
-			fixed_t finalheight;
-
-			if (lowest)
-				finalheight = INT32_MAX;
-			else
-				finalheight = INT32_MIN;
-
-			bbox[BOXLEFT] = x-mobj->radius;
-			bbox[BOXRIGHT] = x+mobj->radius;
-			bbox[BOXTOP] = y+mobj->radius;
-			bbox[BOXBOTTOM] = y-mobj->radius;
-			for (i = 0; i < boundsec->linecount; i++) {
-				ld = boundsec->lines[i];
-
-				if (bbox[BOXRIGHT] <= ld->bbox[BOXLEFT] || bbox[BOXLEFT] >= ld->bbox[BOXRIGHT]
-				|| bbox[BOXTOP] <= ld->bbox[BOXBOTTOM] || bbox[BOXBOTTOM] >= ld->bbox[BOXTOP])
-					continue;
-
-				if (P_BoxOnLineSide(bbox, ld) != -1)
-					continue;
-
-				if (lowest)
-					finalheight = min(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, true));
-				else
-					finalheight = max(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, false));
-			}
-
-			return finalheight;
-		}
-
-		// If we're just testing for base sector location (no collision line), just go for the center's spot...
-		// It'll get fixed when we test for collision anyway, and the final result can't be lower than this
-		if (line == NULL)
-			return P_GetSlopeZAt(slope, x, y);
-
-		return HighestOnLine(mobj->radius, x, y, line, slope, lowest);
-	} else // Well, that makes it easy. Just get the floor height
-		return sector->floorheight;
-}
-
-fixed_t P_CameraCeilingZ(camera_t *mobj, sector_t *sector, sector_t *boundsec, fixed_t x, fixed_t y, line_t *line, boolean lowest, boolean perfect)
-{
-	I_Assert(mobj != NULL);
-	I_Assert(sector != NULL);
-
-	if (sector->c_slope) {
-		fixed_t testx, testy;
-		pslope_t *slope = sector->c_slope;
-
-		// Get the corner of the object that should be the highest on the slope
-		if (slope->d.x < 0)
-			testx = mobj->radius;
-		else
-			testx = -mobj->radius;
-
-		if (slope->d.y < 0)
-			testy = mobj->radius;
-		else
-			testy = -mobj->radius;
-
-		if ((slope->zdelta > 0) ^ !!(lowest)) {
-			testx = -testx;
-			testy = -testy;
-		}
-
-		testx += x;
-		testy += y;
-
-		// If the highest point is in the sector, then we have it easy! Just get the Z at that point
-		if (R_IsPointInSector(boundsec ? boundsec : sector, testx, testy))
-			return P_GetSlopeZAt(slope, testx, testy);
-
-		// If boundsec is set, we're looking for specials. In that case, iterate over every line in this sector to find the TRUE highest/lowest point
-		if (perfect) {
-			size_t i;
-			line_t *ld;
-			fixed_t bbox[4];
-			fixed_t finalheight;
-
-			if (lowest)
-				finalheight = INT32_MAX;
-			else
-				finalheight = INT32_MIN;
-
-			bbox[BOXLEFT] = x-mobj->radius;
-			bbox[BOXRIGHT] = x+mobj->radius;
-			bbox[BOXTOP] = y+mobj->radius;
-			bbox[BOXBOTTOM] = y-mobj->radius;
-			for (i = 0; i < boundsec->linecount; i++) {
-				ld = boundsec->lines[i];
-
-				if (bbox[BOXRIGHT] <= ld->bbox[BOXLEFT] || bbox[BOXLEFT] >= ld->bbox[BOXRIGHT]
-				|| bbox[BOXTOP] <= ld->bbox[BOXBOTTOM] || bbox[BOXBOTTOM] >= ld->bbox[BOXTOP])
-					continue;
-
-				if (P_BoxOnLineSide(bbox, ld) != -1)
-					continue;
-
-				if (lowest)
-					finalheight = min(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, true));
-				else
-					finalheight = max(finalheight, HighestOnLine(mobj->radius, x, y, ld, slope, false));
-			}
-
-			return finalheight;
-		}
-
-		// If we're just testing for base sector location (no collision line), just go for the center's spot...
-		// It'll get fixed when we test for collision anyway, and the final result can't be lower than this
-		if (line == NULL)
-			return P_GetSlopeZAt(slope, x, y);
-
-		return HighestOnLine(mobj->radius, x, y, line, slope, lowest);
-	} else // Well, that makes it easy. Just get the ceiling height
-		return sector->ceilingheight;
-}
 static void P_PlayerFlip(mobj_t *mo)
 {
 	if (!mo->player)
@@ -2329,8 +2173,8 @@ boolean P_CheckDeathPitCollide(mobj_t *mo)
 	if (mo->player && mo->player->pflags & PF_GODMODE)
 		return false;
 
-	fixed_t sectorFloor = P_GetSectorFloorZAt(mo->subsector->sector, mo->x, mo->y);
-	fixed_t sectorCeiling = P_GetSectorCeilingZAt(mo->subsector->sector, mo->x, mo->y);
+	const fixed_t sectorFloor = P_GetSectorFloorZAt(mo->subsector->sector, mo->x, mo->y);
+	const fixed_t sectorCeiling = P_GetSectorCeilingZAt(mo->subsector->sector, mo->x, mo->y);
 
 	if (((mo->z <= sectorFloor
 		&& ((mo->subsector->sector->flags & MSF_TRIGGERSPECIAL_HEADBUMP) || !(mo->eflags & MFE_VERTICALFLIP)) && (mo->subsector->sector->flags & MSF_FLIPSPECIAL_FLOOR))
diff --git a/src/p_user.c b/src/p_user.c
index 25a60cf34be5ed49ccdb820dbc3d01e4f2f562d5..08277fbd22bc1e95620404de9a74f339d91c9cfd 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -10317,8 +10317,8 @@ boolean P_MoveChaseCamera(player_t *player, camera_t *thiscam, boolean resetcall
 		}
 		else
 		{
-			myfloorz = P_CameraGetFloorZ(thiscam, newsubsec->sector, midx, midy, NULL);
-			myceilingz = P_CameraGetCeilingZ(thiscam, newsubsec->sector, midx, midy, NULL);
+			myfloorz = P_GetFloorZ(thiscam, newsubsec->sector, midx, midy, NULL);
+			myceilingz = P_GetCeilingZ(thiscam, newsubsec->sector, midx, midy, NULL);
 		}
 
 		// Check list of fake floors and see if floorz/ceilingz need to be altered.
@@ -10334,8 +10334,8 @@ boolean P_MoveChaseCamera(player_t *player, camera_t *thiscam, boolean resetcall
 				if (!(rover->fofflags & FOF_BLOCKOTHERS) || !(rover->fofflags & FOF_EXISTS) || !(rover->fofflags & FOF_RENDERALL) || (rover->master->frontsector->flags & MSF_NOCLIPCAMERA))
 					continue;
 
-				topheight = P_CameraGetFOFTopZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
-				bottomheight = P_CameraGetFOFBottomZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
+				topheight = P_GetFOFTopZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
+				bottomheight = P_GetFOFBottomZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
 
 				delta1 = midz - (bottomheight
 					+ ((topheight - bottomheight)/2));
@@ -10459,8 +10459,8 @@ boolean P_MoveChaseCamera(player_t *player, camera_t *thiscam, boolean resetcall
 				fixed_t topheight, bottomheight;
 				if ((rover->fofflags & FOF_BLOCKOTHERS) && (rover->fofflags & FOF_RENDERALL) && (rover->fofflags & FOF_EXISTS) && !(rover->master->frontsector->flags & MSF_NOCLIPCAMERA))
 				{
-					topheight = P_CameraGetFOFTopZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
-					bottomheight = P_CameraGetFOFBottomZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
+					topheight = P_GetFOFTopZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
+					bottomheight = P_GetFOFBottomZ(thiscam, newsubsec->sector, rover, midx, midy, NULL);
 
 					if (bottomheight - thiscam->height < z
 						&& midz < bottomheight)