diff --git a/LEGO1/lego/legoomni/include/legopathcontroller.h b/LEGO1/lego/legoomni/include/legopathcontroller.h
index 5450841d..1b1c9dd6 100644
--- a/LEGO1/lego/legoomni/include/legopathcontroller.h
+++ b/LEGO1/lego/legoomni/include/legopathcontroller.h
@@ -23,7 +23,7 @@ class Vector3;
 // VTABLE: LEGO1 0x100d7da8
 // SIZE 0x40
 struct LegoPathCtrlEdge : public LegoUnknown100db7f4 {
-	undefined4 FUN_10048c40(const Vector3&);
+	inline MxU32 FUN_10048c40(const Vector3& p_position);
 };
 
 struct LegoPathCtrlEdgeCompare {
diff --git a/LEGO1/lego/legoomni/src/paths/legopathcontroller.cpp b/LEGO1/lego/legoomni/src/paths/legopathcontroller.cpp
index 86c89917..03eec0b6 100644
--- a/LEGO1/lego/legoomni/src/paths/legopathcontroller.cpp
+++ b/LEGO1/lego/legoomni/src/paths/legopathcontroller.cpp
@@ -818,7 +818,10 @@ MxResult LegoPathController::FUN_10048310(
 				LegoPathBoundary* bOther = (LegoPathBoundary*) e->OtherFace(b);
 				assert(bOther);
 
-				if (e->BETA_1004a830(*bOther, p_mask)) {
+				if (!e->BETA_1004a830(*bOther, p_mask)) {
+					// This branch is empty, but present in the BETA - probably had comments only
+				}
+				else {
 					if (bOther == p_newBoundary) {
 						shouldRemove = FALSE;
 
@@ -917,12 +920,66 @@ MxResult LegoPathController::FUN_10048310(
 	return FAILURE;
 }
 
-// STUB: LEGO1 0x10048c40
-// STUB: BETA10 0x1001cc90
-undefined4 LegoPathCtrlEdge::FUN_10048c40(const Vector3&)
+// FUNCTION: LEGO1 0x10048c40
+// FUNCTION: BETA10 0x1001cc90
+inline MxU32 LegoPathCtrlEdge::FUN_10048c40(const Vector3& p_position)
 {
-	// TODO
-	return 0;
+	MxFloat localc, local10;
+	MxU32 result = FALSE;
+
+	if (m_unk0x28[0] > 0.001 || m_unk0x28[0] < -0.001) {
+		localc = (p_position[0] - (*m_pointA)[0]) / m_unk0x28[0];
+
+		if (localc < 0 || localc > 1) {
+			return FALSE;
+		}
+
+		result = TRUE;
+	}
+	else {
+		if (p_position[0] > (*m_pointA)[0] + 0.001 || p_position[0] < (*m_pointA)[0] - 0.001) {
+			return FALSE;
+		}
+	}
+
+	if (m_unk0x28[1] > 0.001 || m_unk0x28[1] < -0.001) {
+		local10 = (p_position[1] - (*m_pointA)[1]) / m_unk0x28[1];
+
+		if (result) {
+			if (localc > local10 + 0.001 || localc < local10 - 0.001) {
+				return FALSE;
+			}
+		}
+		else {
+			result = TRUE;
+			localc = local10;
+		}
+	}
+	else {
+		if (p_position[1] > (*m_pointA)[1] + 0.001 || p_position[1] < (*m_pointA)[1] - 0.001) {
+			return FALSE;
+		}
+	}
+
+	if (m_unk0x28[2] > 0.001 || m_unk0x28[2] < -0.001) {
+		local10 = (p_position[2] - (*m_pointA)[2]) / m_unk0x28[2];
+
+		if (result) {
+			if (localc > local10 + 0.001 || localc < local10 - 0.001) {
+				return FALSE;
+			}
+		}
+		else {
+			return TRUE;
+		}
+	}
+	else {
+		if (p_position[2] > (*m_pointA)[2] + 0.001 || p_position[2] < (*m_pointA)[2] - 0.001) {
+			return FALSE;
+		}
+	}
+
+	return TRUE;
 }
 
 // FUNCTION: LEGO1 0x1004a240
diff --git a/LEGO1/lego/sources/geom/legounkown100db7f4.h b/LEGO1/lego/sources/geom/legounkown100db7f4.h
index 38de039e..8387c5fa 100644
--- a/LEGO1/lego/sources/geom/legounkown100db7f4.h
+++ b/LEGO1/lego/sources/geom/legounkown100db7f4.h
@@ -74,7 +74,7 @@ struct LegoUnknown100db7f4 : public LegoEdge {
 		((Vector3&) point).Add(*m_pointB);
 		((Vector3&) point).Mul(0.5f);
 		((Vector3&) point).Sub(p_vec);
-		return sqrt(point.LenSquared());
+		return sqrt((double) point.LenSquared());
 	}
 
 	// FUNCTION: BETA10 0x100bd540
@@ -87,7 +87,7 @@ struct LegoUnknown100db7f4 : public LegoEdge {
 		((Vector3&) point2).Add(*p_other.m_pointB);
 		((Vector3&) point2).Mul(0.5f);
 		((Vector3&) point1).Sub(point2);
-		return sqrt(point1.LenSquared());
+		return sqrt((double) point1.LenSquared());
 	}
 
 	// FUNCTION: BETA10 0x1001cc60