diff --git a/asm/field_map_obj.s b/asm/field_map_obj.s
index 342b98927b..95347c52dc 100755
--- a/asm/field_map_obj.s
+++ b/asm/field_map_obj.s
@@ -5,156 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_808F6B8
-sub_808F6B8: @ 808F6B8
-	push {r4-r7,lr}
-	lsls r0, 16
-	asrs r4, r0, 16
-	lsls r1, 16
-	asrs r5, r1, 16
-	lsls r2, 16
-	asrs r6, r2, 16
-	lsls r3, 16
-	asrs r7, r3, 16
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetRegularRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0808F6F4
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetEastWestRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bne _0808F70E
-	b _0808F70C
-_0808F6F4:
-	cmp r0, 0x3
-	bne _0808F70E
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetNorthSouthRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0808F70E
-_0808F70C:
-	movs r0, 0x2
-_0808F70E:
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_808F6B8
-
-	thumb_func_start sub_808F714
-sub_808F714: @ 808F714
-	push {r4-r7,lr}
-	lsls r0, 16
-	asrs r4, r0, 16
-	lsls r1, 16
-	asrs r5, r1, 16
-	lsls r2, 16
-	asrs r6, r2, 16
-	lsls r3, 16
-	asrs r7, r3, 16
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetRegularRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _0808F750
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetEastWestRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x4
-	bne _0808F76A
-	b _0808F768
-_0808F750:
-	cmp r0, 0x4
-	bne _0808F76A
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetNorthSouthRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _0808F76A
-_0808F768:
-	movs r0, 0x1
-_0808F76A:
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_808F714
-
-	thumb_func_start sub_808F770
-sub_808F770: @ 808F770
-	push {r4-r7,lr}
-	lsls r0, 16
-	asrs r4, r0, 16
-	lsls r1, 16
-	asrs r5, r1, 16
-	lsls r2, 16
-	asrs r6, r2, 16
-	lsls r3, 16
-	asrs r7, r3, 16
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetRegularRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _0808F7AC
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetEastWestRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bne _0808F7C6
-	b _0808F7C4
-_0808F7AC:
-	cmp r0, 0x3
-	bne _0808F7C6
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	adds r3, r7, 0
-	bl GetNorthSouthRunningPastFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _0808F7C6
-_0808F7C4:
-	movs r0, 0x1
-_0808F7C6:
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_808F770
-
 	thumb_func_start sub_808F7CC
 sub_808F7CC: @ 808F7CC
 	push {r4-r7,lr}
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index 4b92a792dc..00ccb44939 100755
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -1903,3 +1903,75 @@ u8 GetNorthEastRunningPastFacingDirection(s16 dx1, s16 dy1, s16 dx2, s16 dy2)
     }
     return direction;
 }
+
+u8 GetNorthWestRunningPastFacingDirection(s16 dx1, s16 dy1, s16 dx2, s16 dy2)
+{
+    u8 direction;
+
+    direction = GetRegularRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+    if (direction == DIR_SOUTH)
+    {
+        direction = GetEastWestRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_WEST)
+        {
+            direction = DIR_NORTH;
+        }
+    }
+    else if (direction == DIR_WEST)
+    {
+        direction = GetNorthSouthRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_SOUTH)
+        {
+            direction = DIR_NORTH;
+        }
+    }
+    return direction;
+}
+
+u8 GetSouthEastRunningPastFacingDirection(s16 dx1, s16 dy1, s16 dx2, s16 dy2)
+{
+    u8 direction;
+
+    direction = GetRegularRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+    if (direction == DIR_NORTH)
+    {
+        direction = GetEastWestRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_EAST)
+        {
+            direction = DIR_SOUTH;
+        }
+    }
+    else if (direction == DIR_EAST)
+    {
+        direction = GetNorthSouthRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_NORTH)
+        {
+            direction = DIR_SOUTH;
+        }
+    }
+    return direction;
+}
+
+u8 GetSouthWestRunningPastFacingDirection(s16 dx1, s16 dy1, s16 dx2, s16 dy2)
+{
+    u8 direction;
+
+    direction = GetRegularRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+    if (direction == DIR_NORTH)
+    {
+        direction = GetEastWestRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_WEST)
+        {
+            direction = DIR_SOUTH;
+        }
+    }
+    else if (direction == DIR_WEST)
+    {
+        direction = GetNorthSouthRunningPastFacingDirection(dx1, dy1, dx2, dy2);
+        if (direction == DIR_NORTH)
+        {
+            direction = DIR_SOUTH;
+        }
+    }
+    return direction;
+}