well OK

asm/well.s

@@ -1,79 +0,0 @@
-	.include "asm/macros.inc"
-
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-
-	thumb_func_start sub_080A0E98
-sub_080A0E98: @ 0x080A0E98
-	push {lr}
-	ldr r2, _080A0EAC @ =gUnk_08124C08
-	ldrb r1, [r0, #0xc]
-	lsls r1, r1, #2
-	adds r1, r1, r2
-	ldr r1, [r1]
-	bl _call_via_r1
-	pop {pc}
-	.align 2, 0
-_080A0EAC: .4byte gUnk_08124C08
-
-	thumb_func_start sub_080A0EB0
-sub_080A0EB0: @ 0x080A0EB0
-	push {r4, r5, lr}
-	movs r1, #1
-	strb r1, [r0, #0xc]
-	movs r1, #0x2e
-	ldrsh r2, [r0, r1]
-	ldr r3, _080A0EE8 @ =gRoomControls
-	ldrh r1, [r3, #6]
-	subs r2, r2, r1
-	asrs r2, r2, #4
-	movs r4, #0x3f
-	ands r2, r4
-	movs r5, #0x32
-	ldrsh r1, [r0, r5]
-	ldrh r3, [r3, #8]
-	subs r1, r1, r3
-	asrs r1, r1, #4
-	ands r1, r4
-	lsls r1, r1, #6
-	orrs r2, r1
-	adds r0, #0x80
-	strh r2, [r0]
-	ldr r2, _080A0EEC @ =0x0000407D
-	ldrh r1, [r0]
-	adds r0, r2, #0
-	movs r2, #1
-	bl SetTile
-	pop {r4, r5, pc}
-	.align 2, 0
-_080A0EE8: .4byte gRoomControls
-_080A0EEC: .4byte 0x0000407D
-
-	thumb_func_start sub_080A0EF0
-sub_080A0EF0: @ 0x080A0EF0
-	push {r4, lr}
-	adds r4, r0, #0
-	adds r0, #0x80
-	ldrh r0, [r0]
-	movs r1, #1
-	bl GetTileType
-	ldr r1, _080A0F1C @ =0x0000407D
-	cmp r0, r1
-	beq _080A0F18
-	bl sub_08078B48
-	ldr r1, _080A0F20 @ =gLinkEntity
-	ldr r0, [r4, #0x2c]
-	str r0, [r1, #0x2c]
-	ldrh r0, [r4, #0x32]
-	adds r0, #4
-	strh r0, [r1, #0x32]
-	bl sub_0805E780
-_080A0F18:
-	pop {r4, pc}
-	.align 2, 0
-_080A0F1C: .4byte 0x0000407D
-_080A0F20: .4byte gLinkEntity

include/entity.h

@@ -125,7 +125,8 @@ typedef struct Entity
 	u8 filler3[2];
 	u16 itemCooldown;
 	u32 field_0x7c;
-	u32 field_0x80;
+	u16 field_0x80;
+    u16 field_0x82;
 	u16 cutsceneBeh;
     u16 field_0x86;
 	

linker.ld

@@ -761,11 +761,11 @@ SECTIONS {
 		asm/objectB4.o(.text);
 		asm/objectB5.o(.text);
 		asm/objectB6.o(.text);
-		asm/well.o(.text);
+		src/well.o(.text);
 		asm/windTribeTeleporter.o(.text);
 		asm/objectB9.o(.text);
 		asm/objectBA.o(.text);
-		asm/windCrest.o(.text);
+		asm/windcrest.o(.text);
 		asm/litArea.o(.text);
 		asm/objectBD.o(.text);
 		asm/pinwheel.o(.text);

src/well.c

@@ -0,0 +1,40 @@
+#include "global.h"
+#include "entity.h"
+#include "room.h"
+
+void SetTile(u32 tileIndex, s32 tilePosition, s32 layerIndex);
+s32 GetTileType(s32 tilePosition, s32 layerIndex);
+void sub_08078B48();
+void sub_0805E780();
+
+extern Entity gLinkEntity;
+extern RoomControls gRoomControls;
+extern void (*gUnk_08124C08[])(Entity *);
+
+void sub_080A0E98(Entity* ent)
+{
+    gUnk_08124C08[ent->action](ent);
+}
+
+void sub_080A0EB0(Entity* ent)
+{
+    u32 tilePos;
+
+    ent->action = 1;
+    tilePos = (((ent->x.HALF.HI - gRoomControls.roomOriginX) >> 4) & 0x3F) | ((((ent->y.HALF.HI - gRoomControls.roomOriginY) >> 4) & 0x3F) * 64);
+    ent->field_0x80 = tilePos;
+    SetTile(16509, ent->field_0x80, 1);
+}
+
+void sub_080A0EF0(Entity* ent)
+{
+    s32 tileIndex;
+  
+    tileIndex = GetTileType(ent->field_0x80, 1);
+    if (tileIndex != 16509) {
+        sub_08078B48();
+        gLinkEntity.x.WORD = ent->x.WORD;
+        gLinkEntity.y.HALF.HI = ent->y.HALF.HI + 4;
+        sub_0805E780();
+    }
+}