dionmoustos/PokemonEmeraldSafariFrontier
1
0
Fork 0
Code Issues 21 Pull Requests Actions Packages Projects Releases Wiki Activity

finish decompiling field_map_obj_helpers.c

Browse Source
This commit is contained in:
ProjectRevoTPP
2018-01-30 18:19:41 -05:00
parent 42bfa15ae0
commit 6453b88433
4 changed files with 320 additions and 410 deletions
Download Patch File Download Diff File Expand all files Collapse all files

319
src/field_map_obj_helpers.c
View File

@@ -2,8 +2,13 @@
#include "field_ground_effect.h"
#include "field_map_obj.h"
#include "field_effect.h"
#include "map_obj_8097404.h"
#include "malloc.h"
#include "task.h"
#include "util.h"
extern void sub_8097D68(struct Sprite *sprite);
extern void sub_8097FE4(u8);
typedef void (*SpriteStepFunc)(struct Sprite *sprite, u8 dir);
@@ -523,3 +528,317 @@ void DoRippleFieldEffect(struct MapObject *mapObject, struct Sprite *sprite)
gFieldEffectArguments[3] = 3;
FieldEffectStart(FLDEFF_RIPPLE);
}
#ifdef NONMATCHING
bool32 sub_8097E50(struct MapObject *mapObject, struct Sprite *sprite)
{
bool32 ableToStore = FALSE;
if (gUnknown_020375B8 == NULL)
{
gUnknown_020375B8 = AllocZeroed(0x14);
gUnknown_020375B8[0] = mapObject->localId;
gUnknown_020375B8[16] = 1;
ableToStore = TRUE;
}
else
{
u8 i;
u8 firstFreeSlot;
bool32 found;
for (firstFreeSlot = 16, found = FALSE, i = 0; i < 16; i++)
{
if (firstFreeSlot == 16 && gUnknown_020375B8[i] == 0)
firstFreeSlot = i;
if (gUnknown_020375B8[i] == mapObject->localId)
{
found = TRUE;
break;
}
}
if (!found && firstFreeSlot != 16)
{
gUnknown_020375B8[firstFreeSlot] = mapObject->localId;
gUnknown_020375B8[16]++;
ableToStore = TRUE; // the nonmatching problem is that ableToStore == TRUE isnt being merged with the above ableToStore = TRUE assignment.
}
}
if (ableToStore == TRUE)
{
mapObject->mapobj_bit_12 = TRUE;
mapObject->mapobj_bit_9 = TRUE;
}
sprite->data[2] = 1;
return TRUE;
}
#else
__attribute__((naked))
bool32 sub_8097E50(struct MapObject *mapObject, struct Sprite *sprite)
{
asm(".syntax unified\n\
push {r4-r7,lr}\n\
mov r7, r8\n\
push {r7}\n\
adds r4, r0, 0\n\
mov r8, r1\n\
movs r0, 0\n\
mov r12, r0\n\
ldr r0, =gUnknown_020375B8\n\
ldr r1, [r0]\n\
adds r6, r0, 0\n\
cmp r1, 0\n\
bne _08097E80\n\
movs r0, 0x14\n\
bl AllocZeroed\n\
str r0, [r6]\n\
ldrb r1, [r4, 0x8]\n\
strb r1, [r0]\n\
ldr r1, [r6]\n\
movs r0, 0x1\n\
strb r0, [r1, 0x10]\n\
b _08097ECC\n\
.pool\n\
_08097E80:\n\
movs r2, 0x10\n\
movs r5, 0\n\
movs r1, 0\n\
adds r3, r6, 0\n\
b _08097E90\n\
_08097E8A:\n\
adds r0, r1, 0x1\n\
lsls r0, 24\n\
lsrs r1, r0, 24\n\
_08097E90:\n\
cmp r1, 0xF\n\
bhi _08097EB2\n\
cmp r2, 0x10\n\
bne _08097EA4\n\
ldr r0, [r3]\n\
adds r0, r1\n\
ldrb r0, [r0]\n\
cmp r0, 0\n\
bne _08097EA4\n\
adds r2, r1, 0\n\
_08097EA4:\n\
ldr r0, [r3]\n\
adds r0, r1\n\
ldrb r0, [r0]\n\
ldrb r7, [r4, 0x8]\n\
cmp r0, r7\n\
bne _08097E8A\n\
movs r5, 0x1\n\
_08097EB2:\n\
cmp r5, 0\n\
bne _08097ECE\n\
cmp r2, 0x10\n\
beq _08097ECE\n\
ldr r0, [r6]\n\
adds r0, r2\n\
ldrb r1, [r4, 0x8]\n\
strb r1, [r0]\n\
ldr r1, [r6]\n\
ldrb r0, [r1, 0x10]\n\
adds r0, 0x1\n\
strb r0, [r1, 0x10]\n\
movs r0, 0x1\n\
_08097ECC:\n\
mov r12, r0\n\
_08097ECE:\n\
mov r1, r12\n\
cmp r1, 0x1\n\
bne _08097EE0\n\
ldrb r0, [r4, 0x1]\n\
movs r1, 0x10\n\
orrs r0, r1\n\
movs r1, 0x2\n\
orrs r0, r1\n\
strb r0, [r4, 0x1]\n\
_08097EE0:\n\
movs r0, 0x1\n\
mov r7, r8\n\
strh r0, [r7, 0x32]\n\
pop {r3}\n\
mov r8, r3\n\
pop {r4-r7}\n\
pop {r1}\n\
bx r1\n\
.syntax divided");
}
#endif
// this function is very similar to the above one and I don't want to decompile this one until the above is matching.
__attribute__((naked))
bool32 sub_8097EF0(struct MapObject *mapObject, struct Sprite *sprite)
{
asm(".syntax unified\n\
push {r4-r7,lr}\n\
mov r7, r8\n\
push {r7}\n\
adds r6, r0, 0\n\
mov r8, r1\n\
movs r0, 0x1\n\
strh r0, [r1, 0x32]\n\
ldr r5, =gUnknown_020375B8\n\
ldr r0, [r5]\n\
cmp r0, 0\n\
beq _08097F68\n\
movs r7, 0\n\
adds r0, r6, 0\n\
bl sub_8097F78\n\
lsls r0, 24\n\
lsrs r1, r0, 24\n\
cmp r1, 0x10\n\
beq _08097F28\n\
ldr r0, [r5]\n\
adds r0, r1\n\
movs r1, 0\n\
strb r1, [r0]\n\
ldr r1, [r5]\n\
ldrb r0, [r1, 0x10]\n\
subs r0, 0x1\n\
strb r0, [r1, 0x10]\n\
movs r7, 0x1\n\
_08097F28:\n\
ldr r0, [r5]\n\
ldrb r4, [r0, 0x10]\n\
cmp r4, 0\n\
bne _08097F36\n\
bl Free\n\
str r4, [r5]\n\
_08097F36:\n\
cmp r7, 0x1\n\
bne _08097F68\n\
ldrb r0, [r6, 0x5]\n\
bl GetFieldObjectGraphicsInfo\n\
ldrb r1, [r0, 0xC]\n\
lsls r1, 25\n\
lsrs r1, 31\n\
lsls r1, 4\n\
ldrb r2, [r6, 0x1]\n\
movs r0, 0x11\n\
negs r0, r0\n\
ands r0, r2\n\
orrs r0, r1\n\
movs r1, 0x3\n\
negs r1, r1\n\
ands r0, r1\n\
strb r0, [r6, 0x1]\n\
mov r2, r8\n\
adds r2, 0x2C\n\
ldrb r1, [r2]\n\
movs r0, 0x41\n\
negs r0, r0\n\
ands r0, r1\n\
strb r0, [r2]\n\
_08097F68:\n\
movs r0, 0x1\n\
pop {r3}\n\
mov r8, r3\n\
pop {r4-r7}\n\
pop {r1}\n\
bx r1\n\
.pool\n\
.syntax divided");
}
u8 sub_8097F78(struct MapObject *mapObject)
{
u8 i;
for(i = 0; i < 0x10; i++)
{
if(gUnknown_020375B8[i] == mapObject->localId)
return i;
}
return 0x10;
}
void sub_8097FA4(struct MapObject *mapObject)
{
u8 taskId = CreateTask(sub_8097FE4, 0xFF);
struct Task *task = &gTasks[taskId];
StoreWordInTwoHalfwords(&task->data[0], (u32)mapObject);
mapObject->mapobj_unk_1B = taskId;
task->data[3] = 0xFFFF;
}
void sub_8097FE4(u8 taskId)
{
struct MapObject *mapObject;
struct Sprite *sprite;
struct Task *task = &gTasks[taskId];
LoadWordFromTwoHalfwords(&task->data[0], (u32 *)&mapObject); // load the map object pointer.
sprite = &gSprites[mapObject->spriteId];
if(!(task->data[2] & 0x3))
sprite->pos2.y += task->data[3];
if(!(task->data[2] & 0xF))
task->data[3] = -task->data[3];
task->data[2]++;
}
void sub_8098044(u8 taskId)
{
u32 word;
struct Task *task = &gTasks[taskId];
LoadWordFromTwoHalfwords(&task->data[0], &word); // huh??? why does it load a word that never gets used???
DestroyTask(taskId);
}
void sub_8098074(u8 var1, u8 var2)
{
u8 i;
for(i = 0; i < 0x10; i++)
{
if(i != var1 && i != var2 &&
gMapObjects[i].active && i != gPlayerAvatar.mapObjectId)
FreezeMapObject(&gMapObjects[i]);
}
}
bool32 sub_80980C0(struct MapObject *mapObject, struct Sprite *sprite)
{
sprite->pos2.y = 0;
sprite->data[2]++;
return FALSE;
}
bool32 sub_80980D0(struct MapObject *mapObject, struct Sprite *sprite)
{
sprite->pos2.y -= 8;
if(sprite->pos2.y == -160)
sprite->data[2]++;
return FALSE;
}
bool32 sub_80980F4(struct MapObject *mapObject, struct Sprite *sprite)
{
sprite->pos2.y = -160;
sprite->data[2]++;
return FALSE;
}
bool32 sub_8098108(struct MapObject *mapObject, struct Sprite *sprite)
{
sprite->pos2.y += 8;
if(!sprite->pos2.y)
sprite->data[2]++;
return FALSE;
}
// though this function returns FALSE without doing anything, this header is required due to being in an array of functions which needs it.
bool32 sub_8098124(struct MapObject *mapObject, struct Sprite *sprite)
{
return TRUE;
}