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TryGetFieldObjectIdByLocalIdAndMap

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This commit is contained in:
scnorton 2017-09-06 09:49:51 -04:00
parent f3f8c5ec2c
commit ea9dabdfab
3 changed files with 23 additions and 50 deletions
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50
asm/field_map_obj.s
View File

@ -5,56 +5,6 @@
.text
thumb_func_start GetFieldObjectIdByLocalIdAndMap
@ u8 GetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapId, u8 mapGroupId)
GetFieldObjectIdByLocalIdAndMap: @ 808D524
push {lr}
lsls r0, 24
lsrs r0, 24
lsls r1, 24
lsrs r1, 24
lsls r2, 24
lsrs r2, 24
cmp r0, 0xFE
bls _0808D53C
bl GetFieldObjectIdByLocalId
b _0808D540
_0808D53C:
bl GetFieldObjectIdByLocalIdAndMapInternal
_0808D540:
lsls r0, 24
lsrs r0, 24
pop {r1}
bx r1
thumb_func_end GetFieldObjectIdByLocalIdAndMap
thumb_func_start TryGetFieldObjectIdByLocalIdAndMap
@ bool8 TryGetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapId, u8 mapGroupId, u8 *fieldObjectId)
TryGetFieldObjectIdByLocalIdAndMap: @ 808D548
push {r4,lr}
adds r4, r3, 0
lsls r0, 24
lsrs r0, 24
lsls r1, 24
lsrs r1, 24
lsls r2, 24
lsrs r2, 24
bl GetFieldObjectIdByLocalIdAndMap
strb r0, [r4]
lsls r0, 24
lsrs r0, 24
cmp r0, 0x10
beq _0808D56A
movs r0, 0
b _0808D56C
_0808D56A:
movs r0, 0x1
_0808D56C:
pop {r4}
pop {r1}
bx r1
thumb_func_end TryGetFieldObjectIdByLocalIdAndMap
thumb_func_start GetFieldObjectIdByXY
@ u8 GetFieldObjectIdByXY(s16 x, s16 y)
GetFieldObjectIdByXY: @ 808D574

2
include/field_map_obj.h
View File

@ -10,6 +10,8 @@ extern struct MapObject gUnknown_02037350[16];
// Exported ROM declarations
void sub_808D438(void);
u8 GetFieldObjectIdByLocalIdAndMap(u8, u8, u8);
bool8 TryGetFieldObjectIdByLocalIdAndMap(u8, u8, u8, u8 *);
// Exported data declarations

21
src/field_map_obj.c
View File

@ -13,6 +13,8 @@
// Static ROM declarations
/*static*/ void sub_808D450(void);
/*static*/ u8 GetFieldObjectIdByLocalId(u8);
/*static*/ u8 GetFieldObjectIdByLocalIdAndMapInternal(u8, u8, u8);
// ROM data
@ -75,3 +77,22 @@ u8 sub_808D4F4(void)
}
return i;
}
u8 GetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapId, u8 mapGroupId)
{
if (localId < 0xff)
{
return GetFieldObjectIdByLocalIdAndMapInternal(localId, mapId, mapGroupId);
}
return GetFieldObjectIdByLocalId(localId);
}
bool8 TryGetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapId, u8 mapGroupId, u8 *fieldObjectId)
{
*fieldObjectId = GetFieldObjectIdByLocalIdAndMap(localId, mapId, mapGroupId);
if (*fieldObjectId == 16)
{
return TRUE;
}
return FALSE;
}