1 files changed, 129 insertions, 0 deletions
diff --git a/engine/overworld/hidden_objects.asm b/engine/overworld/hidden_objects.asm
new file mode 100755
index 00000000..e4777a84
--- /dev/null
+++ b/engine/overworld/hidden_objects.asm
@@ -0,0 +1,129 @@
+Func_46981: ; 46981 (11:6981)
+	xor a
+	ld [$d71e], a
+	ld a, [$d72d]
+	bit 4, a
+	ret nz
+	call ArePlayerCoordsInArray
+	ret nc
+	ld a, [wWhichTrade] ; $cd3d
+	ld [$d71e], a
+	ld hl, $d72d
+	set 4, [hl]
+	ld hl, $d732
+	set 4, [hl]
+	ret
+
+Func_469a0: ; 469a0 (11:69a0)
+	ld hl, $ffeb
+	xor a
+	ld [hli], a
+	ld [hli], a
+	ld [hli], a
+	ld [hl], a
+	ld de, $0
+	ld hl, HiddenObjectMaps ; $6a40
+.asm_469ae
+	ld a, [hli]
+	ld b, a
+	cp $ff
+	jr z, .asm_469fc
+	ld a, [W_CURMAP] ; $d35e
+	cp b
+	jr z, .asm_469be
+	inc de
+	inc de
+	jr .asm_469ae
+.asm_469be
+	ld hl, HiddenObjectPointers ; $6a96
+	add hl, de
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	push hl
+	ld hl, wWhichTrade ; $cd3d
+	xor a
+	ld [hli], a
+	ld [hli], a
+	ld [hl], a
+	pop hl
+.asm_469ce
+	ld a, [hli]
+	cp $ff
+	jr z, .asm_469fc
+	ld [$cd40], a
+	ld b, a
+	ld a, [hli]
+	ld [$cd41], a
+	ld c, a
+	call Func_46a01
+	ld a, [$ffea]
+	and a
+	jr z, .asm_469f0
+	inc hl
+	inc hl
+	inc hl
+	inc hl
+	push hl
+	ld hl, $cd3f
+	inc [hl]
+	pop hl
+	jr .asm_469ce
+.asm_469f0
+	ld a, [hli]
+	ld [wWhichTrade], a ; $cd3d
+	ld a, [hli]
+	ld [$cd3e], a
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	ret
+.asm_469fc
+	ld a, $ff
+	ld [$ffee], a
+	ret
+
+Func_46a01: ; 46a01 (11:6a01)
+	ld a, [$c109]
+	cp $4
+	jr z, .asm_46a16
+	cp $8
+	jr z, .asm_46a25
+	cp $c
+	jr z, .asm_46a2b
+	ld a, [W_YCOORD] ; $d361
+	inc a
+	jr .asm_46a1a
+.asm_46a16
+	ld a, [W_YCOORD] ; $d361
+	dec a
+.asm_46a1a
+	cp b
+	jr nz, .asm_46a3b
+	ld a, [W_XCOORD] ; $d362
+	cp c
+	jr nz, .asm_46a3b
+	jr .asm_46a38
+.asm_46a25
+	ld a, [W_XCOORD] ; $d362
+	dec a
+	jr .asm_46a2f
+.asm_46a2b
+	ld a, [W_XCOORD] ; $d362
+	inc a
+.asm_46a2f
+	cp c
+	jr nz, .asm_46a3b
+	ld a, [W_YCOORD] ; $d361
+	cp b
+	jr nz, .asm_46a3b
+.asm_46a38
+	xor a
+	jr .asm_46a3d
+.asm_46a3b
+	ld a, $ff
+.asm_46a3d
+	ld [$ffea], a
+	ret
+
+INCLUDE "data/hidden_objects.asm"