sub_80940C4 which may or may not be a meme

3 files changed, 29 insertions, 97 deletions

diff --git a/asm/field_map_obj.s b/asm/field_map_obj.s
index 23ee23b72..8acfa8114 100755
--- a/asm/field_map_obj.s
+++ b/asm/field_map_obj.s
@@ -5,103 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80940C4
-@ int sub_80940C4(int a1, int a2, int a3)
-sub_80940C4: @ 80940C4
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x10
-	adds r6, r0, 0
-	adds r7, r1, 0
-	adds r4, r2, 0
-	ldr r1, =gUnknown_0850DFC2
-	add r0, sp, 0x4
-	movs r2, 0x6
-	bl memcpy
-	adds r0, r7, 0
-	bl _call_via_r4
-	lsls r0, 24
-	lsrs r0, 24
-	mov r8, r0
-	cmp r0, 0x1
-	bne _08094154
-	movs r1, 0x36
-	ldrsh r0, [r7, r1]
-	lsls r0, 1
-	add r0, sp
-	adds r0, 0x4
-	movs r2, 0
-	ldrsh r0, [r0, r2]
-	cmp r0, 0
-	beq _08094154
-	add r4, sp, 0xC
-	movs r0, 0
-	strh r0, [r4]
-	mov r5, sp
-	adds r5, 0xE
-	strh r0, [r5]
-	ldrb r0, [r6, 0x18]
-	lsrs r0, 4
-	movs r2, 0x36
-	ldrsh r1, [r7, r2]
-	lsls r1, 1
-	add r1, sp
-	adds r1, 0x4
-	movs r2, 0
-	ldrsh r3, [r1, r2]
-	str r3, [sp]
-	adds r1, r4, 0
-	adds r2, r5, 0
-	bl sub_8092F88
-	ldrh r1, [r4]
-	ldrh r0, [r6, 0x10]
-	adds r1, r0
-	lsls r1, 16
-	asrs r1, 16
-	ldrh r2, [r5]
-	ldrh r0, [r6, 0x12]
-	adds r2, r0
-	lsls r2, 16
-	asrs r2, 16
-	adds r0, r6, 0
-	bl npc_coords_shift
-	ldrb r0, [r6]
-	movs r1, 0x4
-	orrs r0, r1
-	movs r1, 0x10
-	orrs r0, r1
-	strb r0, [r6]
-	b _08094178
-	.pool
-_08094154:
-	mov r1, r8
-	cmp r1, 0xFF
-	bne _08094178
-	adds r0, r6, 0
-	bl npc_coords_shift_still
-	ldrb r0, [r6]
-	movs r1, 0x8
-	orrs r0, r1
-	movs r1, 0x20
-	orrs r0, r1
-	strb r0, [r6]
-	adds r2, r7, 0
-	adds r2, 0x2C
-	ldrb r0, [r2]
-	movs r1, 0x40
-	orrs r0, r1
-	strb r0, [r2]
-_08094178:
-	mov r0, r8
-	add sp, 0x10
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80940C4
-
 	thumb_func_start sub_8094188
 sub_8094188: @ 8094188
 	push {lr}
diff --git a/include/data3.h b/include/data3.h
index b9ddf3e55..8151e418c 100755
--- a/include/data3.h
+++ b/include/data3.h
@@ -45,5 +45,6 @@ extern const u8 gUnknown_0850DBA0[5];
 extern bool8 (*const *const gUnknown_0850DC50[])(struct MapObject *, struct Sprite *);
 extern u8 (*const gUnknown_0850DEE8[5])(u8);
 extern const s16 gUnknown_0850DFBC[3];
+extern const s16 gUnknown_0850DFC2[3];
 
 #endif //GUARD_DATA3_H
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index 5852f220c..3e3bbfa6f 100755
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -4288,3 +4288,31 @@ void maybe_shadow_1(struct MapObject *mapObject, struct Sprite *sprite, u8 direc
     npc_apply_anim_looping(mapObject, sprite, get_go_image_anim_num(mapObject->mapobj_unk_18));
     DoShadowFieldEffect(mapObject);
 }
+
+u8 sub_80940C4(struct MapObject *mapObject, struct Sprite *sprite, u8 callback(struct Sprite *))
+{
+    s16 displacements[ARRAY_COUNT(gUnknown_0850DFC2)];
+    s16 x;
+    s16 y;
+    u8 result;
+
+    memcpy(displacements, gUnknown_0850DFC2, sizeof gUnknown_0850DFC2);
+    result = callback(sprite);
+    if (result == 1 && displacements[sprite->data4] != 0)
+    {
+        x = 0;
+        y = 0;
+        sub_8092F88(mapObject->placeholder18, &x, &y, displacements[sprite->data4], displacements[sprite->data4]);
+        npc_coords_shift(mapObject, mapObject->coords2.x + x, mapObject->coords2.y + y);
+        mapObject->mapobj_bit_2 = TRUE;
+        mapObject->mapobj_bit_4 = TRUE;
+    }
+    else if (result == 0xFF)
+    {
+        npc_coords_shift_still(mapObject);
+        mapObject->mapobj_bit_3 = TRUE;
+        mapObject->mapobj_bit_5 = TRUE;
+        sprite->animPaused = TRUE;
+    }
+    return result;
+}