sub_8092FF0

asm/field_map_obj.s

@@ -5,40 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8092FF0
-sub_8092FF0: @ 8092FF0
-	push {r4,r5,lr}
-	ldr r5, =gSaveBlock1Ptr
-	ldr r4, [r5]
-	ldrh r4, [r4]
-	lsls r0, 16
-	asrs r0, 16
-	subs r0, r4
-	lsls r0, 4
-	strh r0, [r2]
-	ldr r0, [r5]
-	ldrh r0, [r0, 0x2]
-	lsls r1, 16
-	asrs r1, 16
-	subs r1, r0
-	lsls r1, 4
-	strh r1, [r3]
-	ldr r1, =gUnknown_03005DEC
-	ldrh r0, [r2]
-	ldrh r1, [r1]
-	subs r0, r1
-	strh r0, [r2]
-	ldr r1, =gUnknown_03005DE8
-	ldrh r0, [r3]
-	ldrh r1, [r1]
-	subs r0, r1
-	strh r0, [r3]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8092FF0
-
 	thumb_func_start sub_8093038
 sub_8093038: @ 8093038
 	push {r4-r7,lr}

include/field_camera.h

@@ -0,0 +1,13 @@
+#ifndef GUARD_FIELD_CAMERA_H
+#define GUARD_FIELD_CAMERA_H
+
+// Exported type declarations
+
+// Exported RAM declarations
+
+extern u16 gUnknown_03005DEC;
+extern u16 gUnknown_03005DE8;
+
+// Exported ROM declarations
+
+#endif //GUARD_FIELD_CAMERA_H

src/field_map_obj.c

@@ -20,6 +20,7 @@
 #include "metatile_behavior.h"
 #include "field_effect.h"
 #include "field_effect_helpers.h"
+#include "field_camera.h"
 #include "field_map_obj.h"
 
 #define NUM_FIELD_MAP_OBJECT_TEMPLATES 0x51
@@ -3827,6 +3828,14 @@ void sub_8092F88(u32 dirn, s16 *x, s16 *y, s16 dx, s16 dy)
     }
 }
 
+void sub_8092FF0(s16 x, s16 y, s16 *dest_x, s16 *dest_y)
+{
+    *dest_x = (x - gSaveBlock1Ptr->pos.x) << 4;
+    *dest_y = (y - gSaveBlock1Ptr->pos.y) << 4;
+    *dest_x -= gUnknown_03005DEC;
+    *dest_y -= gUnknown_03005DE8;
+}
+
 asm(".section .text.get_face_direction_anim_id");
 
 void FieldObjectClearAnimIfSpecialAnimActive(struct MapObject *);