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pokeheartgold/src/fieldmap.c
red031000 351eaed9e3
start to cleanup field_move.c
2025-02-12 05:50:50 +00:00

661 lines
23 KiB
C
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#include "start_menu.h"
#define _IN_FIELDMAP_C
#include "constants/std_script.h"
#include "fielddata/script/scr_seq.naix"
#include "msgdata/msg.naix"
#include "field_system.h"
#include "fieldmap.h"
#include "map_events.h"
#include "map_header.h"
#include "map_object.h"
#include "save_vars_flags.h"
#include "task.h"
struct ScriptBankMapping {
u16 scriptIdLo;
u16 scriptBank;
u16 msgBank;
};
struct HiddenItemData {
u16 itemId;
u8 quantity;
u8 unk3;
u16 unk4;
u16 index;
};
#include "data/fieldmap.h"
const struct ScriptBankMapping sScriptBankMapping[30] = {
{ _std_scratch_card, NARC_scr_seq_scr_seq_0263_bin, NARC_msg_msg_0433_bin },
{ _std_frontier_records, NARC_scr_seq_scr_seq_0264_bin, NARC_msg_msg_0019_bin },
{ _std_frontier_move_tutor, NARC_scr_seq_scr_seq_0002_bin, NARC_msg_msg_0748_bin },
{ _std_bug_contest, NARC_scr_seq_scr_seq_0151_bin, NARC_msg_msg_0246_bin },
{ _std_trainer_house, NARC_scr_seq_scr_seq_0952_bin, NARC_msg_msg_0726_bin },
{ 10300, NARC_scr_seq_scr_seq_0734_bin, NARC_msg_msg_0444_bin },
{ _std_mystery_gift, NARC_scr_seq_scr_seq_0144_bin, NARC_msg_msg_0209_bin },
{ 10150, NARC_scr_seq_scr_seq_0955_bin, NARC_msg_msg_0732_bin },
{ _std_tv, NARC_scr_seq_scr_seq_0954_bin, NARC_msg_msg_0733_bin },
{ _std_field_move, NARC_scr_seq_scr_seq_0146_bin, NARC_msg_msg_0211_bin },
{ _std_dex_evaluation, NARC_scr_seq_scr_seq_0148_bin, NARC_msg_msg_0666_bin },
{ 9900, NARC_scr_seq_scr_seq_0136_bin, NARC_msg_msg_0040_bin },
{ _std_pokeathlon, NARC_scr_seq_scr_seq_0167_bin, NARC_msg_msg_0312_bin },
{ 9800, NARC_scr_seq_scr_seq_0166_bin, NARC_msg_msg_0043_bin },
{ _std_following_mon, NARC_scr_seq_scr_seq_0163_bin, NARC_msg_msg_0266_bin },
{ _std_init, NARC_scr_seq_scr_seq_0149_bin, NARC_msg_msg_0040_bin },
{ _std_daycare, NARC_scr_seq_scr_seq_0265_bin, NARC_msg_msg_0439_bin },
{ _std_group, NARC_scr_seq_scr_seq_0143_bin, NARC_msg_msg_0204_bin },
{ _std_wifi_reception, NARC_scr_seq_scr_seq_0164_bin, NARC_msg_msg_0267_bin },
{ _std_colosseum, NARC_scr_seq_scr_seq_0000_bin, NARC_msg_msg_0014_bin },
{ _std_comm_reception, NARC_scr_seq_scr_seq_0004_bin, NARC_msg_msg_0046_bin },
{ _std_chatot, NARC_scr_seq_scr_seq_0165_bin, NARC_msg_msg_0268_bin },
{ _std_safari, NARC_scr_seq_scr_seq_0262_bin, NARC_msg_msg_0427_bin },
{ _std_hidden_item, NARC_scr_seq_scr_seq_0145_bin, NARC_msg_msg_0210_bin }, // Hidden Items
{ _std_item_ball, NARC_scr_seq_scr_seq_0141_bin, NARC_msg_msg_0199_bin },
{ _std_npc_trainer_2, NARC_scr_seq_scr_seq_0953_bin, NARC_msg_msg_0040_bin },
{ _std_npc_trainer, NARC_scr_seq_scr_seq_0953_bin, NARC_msg_msg_0040_bin },
{ _std_apricorn_tree, NARC_scr_seq_scr_seq_0150_bin, NARC_msg_msg_0023_bin },
{ _std_bookshelves, NARC_scr_seq_scr_seq_0001_bin, NARC_msg_msg_0020_bin },
{ _std_misc, NARC_scr_seq_scr_seq_0003_bin, NARC_msg_msg_0040_bin },
};
void StartMapSceneScript(FieldSystem *fieldSystem, u16 script, LocalMapObject *lastInteracted) {
ScriptEnvironment *r4 = ScriptEnvironment_New();
SetupScriptEngine(fieldSystem, r4, script, lastInteracted, NULL);
FieldSystem_CreateTask(fieldSystem, Task_RunScripts, r4);
}
void FieldSystem_SetEngagedTrainer(FieldSystem *fieldSystem, LocalMapObject *obj, int a2, int a3, int a4, int trainerId, int encounterType, int idx) {
ScriptEnvironment *env = TaskManager_GetEnvironment(fieldSystem->taskman);
EngagedTrainer *r0 = &env->engagedTrainers[idx];
r0->unk0 = a2;
r0->unk4 = a3;
r0->unk8 = a4;
r0->trainerId = trainerId;
r0->encounterType = encounterType;
r0->overworldEvent = obj;
}
void QueueScript(TaskManager *taskman, u16 script, LocalMapObject *lastInteracted, void *a3) {
FieldSystem *fieldSystem = TaskManager_GetFieldSystem(taskman);
ScriptEnvironment *env = ScriptEnvironment_New();
SetupScriptEngine(fieldSystem, env, script, lastInteracted, a3);
TaskManager_Call(taskman, Task_RunScripts, env);
}
void StartScriptFromMenu(TaskManager *taskman, u16 script, LocalMapObject *lastInteracted) {
FieldSystem *fieldSystem = TaskManager_GetFieldSystem(taskman);
ScriptEnvironment *env = ScriptEnvironment_New();
SetupScriptEngine(fieldSystem, env, script, lastInteracted, NULL);
TaskManager_Jump(taskman, Task_RunScripts, env);
}
BOOL Task_RunScripts(TaskManager *taskman) {
int i;
FieldSystem *fieldSystem;
ScriptEnvironment *env;
env = TaskManager_GetEnvironment(taskman);
fieldSystem = TaskManager_GetFieldSystem(taskman);
switch (env->state) {
case 0:
env->scriptContexts[0] = CreateScriptContext(fieldSystem, env->activeScriptNumber);
env->activeScriptContextCount = 1;
env->msgfmt = MessageFormat_New_Custom(8, 64, HEAP_ID_FIELD);
env->stringBuffer0 = String_New(1024, HEAP_ID_FIELD);
env->stringBuffer1 = String_New(1024, HEAP_ID_FIELD);
env->state++;
// fallthrough
case 1:
for (i = 0; i < 3; i++) {
struct ScriptContext *ctx = env->scriptContexts[i];
if (ctx == NULL) {
continue;
}
if (RunScriptCommand(ctx)) {
continue;
}
DestroyScriptContext(ctx);
GF_ASSERT(env->activeScriptContextCount != 0);
env->scriptContexts[i] = NULL;
env->activeScriptContextCount--;
}
if (env->activeScriptContextCount == 0) {
void (*callback)(FieldSystem *a0) = env->scrctx_end_cb;
MessageFormat_Delete(env->msgfmt);
String_Delete(env->stringBuffer0);
String_Delete(env->stringBuffer1);
env->check = 0;
FreeToHeap(env);
if (callback != NULL) {
(*callback)(fieldSystem);
return FALSE;
} else {
return TRUE;
}
}
}
return FALSE;
}
ScriptEnvironment *ScriptEnvironment_New(void) {
ScriptEnvironment *ret = AllocFromHeap(HEAP_ID_FIELD, sizeof(ScriptEnvironment));
GF_ASSERT(ret != NULL);
memset(ret, 0, sizeof(ScriptEnvironment));
ret->check = Unk80_10_C_MAGIC;
return ret;
}
void DestroyScriptContext(ScriptContext *ctx) {
DestroyMsgData(ctx->msgdata);
FreeToHeap(ctx->mapScripts);
FreeToHeap(ctx);
}
void SetupScriptEngine(FieldSystem *fieldSystem, ScriptEnvironment *env, u16 script, LocalMapObject *lastInteracted, void *a4) {
u16 *varLastInteracted = FieldSysGetAttrAddrInternal(env, SCRIPTENV_SPECIAL_VAR_LAST_INTERACTED);
env->facingDirection = PlayerAvatar_GetFacingDirection(fieldSystem->playerAvatar);
env->lastInteracted = lastInteracted;
env->activeScriptNumber = script;
env->unk_34 = a4;
if (lastInteracted != NULL) {
*varLastInteracted = MapObject_GetID(lastInteracted);
}
if (script >= _std_hidden_item && script <= _std_safari - 1) {
GetHiddenItemParams(env, script);
}
}
ScriptContext *CreateScriptContext(FieldSystem *fieldSystem, u16 script) {
ScriptContext *ctx = AllocFromHeap(HEAP_ID_FIELD, sizeof(ScriptContext));
GF_ASSERT(ctx != NULL);
InitScriptContext(ctx, gScriptCmdTable, sNumScriptCmds);
SetUpScriptContextForMap(fieldSystem, ctx, script, 0);
return ctx;
}
void SetUpScriptContextForMap(FieldSystem *fieldSystem, ScriptContext *ctx, u16 scriptId, u32 unused_r3) {
#pragma unused(unused_r3)
u16 r6;
ctx->fieldSystem = fieldSystem;
r6 = LoadScriptsAndMessagesByMapId(fieldSystem, ctx, scriptId);
SetupBytecodeScript(ctx, ctx->mapScripts);
ScriptRunByIndex(ctx, r6);
sub_0203FD68(ctx, fieldSystem->taskman);
}
u16 LoadScriptsAndMessagesByMapId(FieldSystem *fieldSystem, ScriptContext *ctx, u16 scriptId) {
const struct ScriptBankMapping *mapping_p = sScriptBankMapping;
int i;
for (i = 0; i < NELEMS(sScriptBankMapping); i++) {
if (scriptId >= mapping_p[i].scriptIdLo) {
LoadScriptsAndMessagesParameterized(fieldSystem, ctx, mapping_p[i].scriptBank, mapping_p[i].msgBank);
return scriptId - mapping_p[i].scriptIdLo;
}
}
if (scriptId >= 1) {
LoadScriptsAndMessagesForCurrentMap(fieldSystem, ctx);
return scriptId - 1;
} else {
LoadScriptsAndMessagesParameterized(fieldSystem, ctx, NARC_scr_seq_scr_seq_0140_bin, NARC_msg_msg_0184_bin);
return 0;
}
}
void LoadScriptsAndMessagesParameterized(FieldSystem *fieldSystem, ScriptContext *ctx, int scriptBank, u32 msgBank) {
ctx->mapScripts = AllocAndReadWholeNarcMemberByIdPair(NARC_fielddata_script_scr_seq, scriptBank, HEAP_ID_FIELD);
ctx->msgdata = NewMsgDataFromNarc(MSGDATA_LOAD_LAZY, NARC_msgdata_msg, msgBank, HEAP_ID_FIELD);
}
void LoadScriptsAndMessagesForCurrentMap(FieldSystem *fieldSystem, ScriptContext *ctx) {
ctx->mapScripts = LoadScriptsForCurrentMap(fieldSystem->location->mapId);
ctx->msgdata = NewMsgDataFromNarc(MSGDATA_LOAD_LAZY, NARC_msgdata_msg, GetCurrentMapMessageBank(fieldSystem->location->mapId), HEAP_ID_FIELD);
}
void *FieldSysGetAttrAddrInternal(ScriptEnvironment *environment, enum ScriptEnvField field) {
switch (field) {
case SCRIPTENV_MENU_WINDOW:
return &environment->unk_10;
case SCRIPTENV_WINDOW:
return &environment->unk_14;
case SCRIPTENV_LIST_MENU_2D:
return &environment->listMenu2D;
case SCRIPTENV_TEXT_PRINTER_NUMBER:
return &environment->textPrinterNum;
case SCRIPTENV_ACTIVE_MOVEMENT_COUNTER:
return &environment->activeMovementCounter;
case SCRIPTENV_FIELD_07:
return &environment->unk_7;
case SCRIPTENV_FIELD_08:
return &environment->unk_8;
case SCRIPTENV_ACTIVE_SCRIPT_CONTEXT_COUNT:
return &environment->activeScriptContextCount;
case SCRIPTENV_ACTIVE_SCRIPT_NUMBER:
return &environment->activeScriptNumber;
case SCRIPTENV_FACING_DIRECTION:
return &environment->facingDirection;
case SCRIPTENV_LAST_INTERACTED:
return &environment->lastInteracted;
case SCRIPTENV_CAMERA_TARGET:
return &environment->cameraTarget;
case SCRIPTENV_FIELD_34:
return &environment->unk_34;
case SCRIPTENV_SCRIPT_CONTEXT_0:
case SCRIPTENV_SCRIPT_CONTEXT_1:
case SCRIPTENV_SCRIPT_CONTEXT_2:
return &environment->scriptContexts[field - SCRIPTENV_SCRIPT_CONTEXT_0];
case SCRIPTENV_MESSAGE_FORMAT:
return &environment->msgfmt;
case SCRIPTENV_STRING_BUFFER_0:
return &environment->stringBuffer0;
case SCRIPTENV_STRING_BUFFER_1:
return &environment->stringBuffer1;
case SCRIPTENV_WAITING_ICON:
return &environment->waitingIcon;
case SCRIPTENV_RUNNING_APP_DATA:
return &environment->runningAppData;
case SCRIPTENV_MISC_DATA_PTR:
return &environment->miscDataPtr;
case SCRIPTENV_FIELD_B4:
return &environment->unk_B4;
case SCRIPTENV_FIELD_B8:
return &environment->unk_B8;
case SCRIPTENV_BATTLE_WIN_FLAG:
return &environment->battleWinFlag;
case SCRIPTENV_ENGAGED_TRAINER_0_FIELD_00:
return &environment->engagedTrainers[0].unk0;
case SCRIPTENV_ENGAGED_TRAINER_0_FIELD_04:
return &environment->engagedTrainers[0].unk4;
case SCRIPTENV_ENGAGED_TRAINER_0_FIELD_08:
return &environment->engagedTrainers[0].unk8;
case SCRIPTENV_ENGAGED_TRAINER_0_ID:
return &environment->engagedTrainers[0].trainerId;
case SCRIPTENV_ENGAGED_TRAINER_0_ENCOUNTER_TYPE:
return &environment->engagedTrainers[0].encounterType;
case SCRIPTENV_ENGAGED_TRAINER_0_EVENT:
return &environment->engagedTrainers[0].overworldEvent;
case SCRIPTENV_ENGAGED_TRAINER_0_FIELD_18:
return &environment->engagedTrainers[0].unk18;
case SCRIPTENV_ENGAGED_TRAINER_1_FIELD_00:
return &environment->engagedTrainers[1].unk0;
case SCRIPTENV_ENGAGED_TRAINER_1_FIELD_04:
return &environment->engagedTrainers[1].unk4;
case SCRIPTENV_ENGAGED_TRAINER_1_FIELD_08:
return &environment->engagedTrainers[1].unk8;
case SCRIPTENV_ENGAGED_TRAINER_1_ID:
return &environment->engagedTrainers[1].trainerId;
case SCRIPTENV_ENGAGED_TRAINER_1_ENCOUNTER_TYPE:
return &environment->engagedTrainers[1].encounterType;
case SCRIPTENV_ENGAGED_TRAINER_1_EVENT:
return &environment->engagedTrainers[1].overworldEvent;
case SCRIPTENV_ENGAGED_TRAINER_1_FIELD_18:
return &environment->engagedTrainers[1].unk18;
case SCRIPTENV_POINTS_BOX:
return &environment->pointsBox;
case SCRIPTENV_MONEY_BOX:
return &environment->moneyBox;
case SCRIPTENV_SAVE_STATS_PRINTER:
return &environment->saveStatsPrinter;
case SCRIPTENV_SPECIAL_VAR_8000:
case SCRIPTENV_SPECIAL_VAR_8001:
case SCRIPTENV_SPECIAL_VAR_8002:
case SCRIPTENV_SPECIAL_VAR_8003:
case SCRIPTENV_SPECIAL_VAR_8004:
case SCRIPTENV_SPECIAL_VAR_8005:
case SCRIPTENV_SPECIAL_VAR_8006:
case SCRIPTENV_SPECIAL_VAR_8007:
case SCRIPTENV_SPECIAL_VAR_8008:
case SCRIPTENV_SPECIAL_VAR_8009:
case SCRIPTENV_SPECIAL_VAR_800A:
case SCRIPTENV_SPECIAL_VAR_800B:
case SCRIPTENV_SPECIAL_VAR_RESULT:
case SCRIPTENV_SPECIAL_VAR_LAST_INTERACTED:
return &environment->specialVars[field - SCRIPTENV_SPECIAL_VAR_8000];
default:
GF_ASSERT(FALSE);
return NULL;
}
}
void *FieldSysGetAttrAddr(FieldSystem *fieldSystem, enum ScriptEnvField field) {
ScriptEnvironment *unk = TaskManager_GetEnvironment(fieldSystem->taskman);
GF_ASSERT(unk != NULL);
GF_ASSERT(unk->check == Unk80_10_C_MAGIC);
return FieldSysGetAttrAddrInternal(unk, field);
}
void sub_0204031C(FieldSystem *fieldSystem) {
ScriptEnvironment *unk = TaskManager_GetEnvironment(fieldSystem->taskman);
if (FieldSystem_MapIsNotMysteryZone(fieldSystem) == TRUE) {
unk->scrctx_end_cb = sub_0203BD64;
}
}
void ScriptRunByIndex(ScriptContext *ctx, int idx) {
ctx->script_ptr += 4 * idx;
ctx->script_ptr += ScriptReadWord(ctx);
}
u8 *LoadScriptsForCurrentMap(u32 mapno) {
return AllocAndReadWholeNarcMemberByIdPair(NARC_fielddata_script_scr_seq, MapHeader_GetScriptsBank(mapno), HEAP_ID_FIELD);
}
u32 GetCurrentMapMessageBank(u32 mapno) {
return MapHeader_GetMsgBank(mapno);
}
u16 *GetVarPointer(FieldSystem *fieldSystem, u16 varIdx) {
SaveVarsFlags *state = Save_VarsFlags_Get(fieldSystem->saveData);
if (varIdx < VAR_BASE) {
return NULL;
} else if (varIdx < SPECIAL_VAR_BASE) {
return Save_VarsFlags_GetVarAddr(state, varIdx);
} else {
return FieldSysGetAttrAddr(fieldSystem, (enum ScriptEnvField)(SCRIPTENV_SPECIAL_VAR_8000 + varIdx - SPECIAL_VAR_BASE));
}
}
u16 FieldSystem_VarGet(FieldSystem *fieldSystem, u16 varIdx) {
u16 *ptr = GetVarPointer(fieldSystem, varIdx);
if (ptr != NULL) {
varIdx = *ptr;
}
return varIdx;
}
BOOL FieldSystem_VarSet(FieldSystem *fieldSystem, u16 varIdx, u16 value) {
u16 *ptr = GetVarPointer(fieldSystem, varIdx);
if (ptr == NULL) {
return FALSE;
}
*ptr = value;
return TRUE;
}
u16 FieldSystem_VarGetObjectEventGraphicsId(FieldSystem *fieldSystem, u16 varobjId) {
GF_ASSERT(varobjId < NUM_OBJ_GFX_VARS);
return FieldSystem_VarGet(fieldSystem, VAR_OBJ_GFX_BASE + varobjId);
}
BOOL FieldSystem_FlagCheck(FieldSystem *fieldSystem, u16 flagId) {
return Save_VarsFlags_CheckFlagInArray(Save_VarsFlags_Get(fieldSystem->saveData), flagId);
}
void FieldSystem_FlagSet(FieldSystem *fieldSystem, u16 flagId) {
return Save_VarsFlags_SetFlagInArray(Save_VarsFlags_Get(fieldSystem->saveData), flagId);
}
void FieldSystem_FlagClear(FieldSystem *fieldSystem, u16 flagId) {
return Save_VarsFlags_ClearFlagInArray(Save_VarsFlags_Get(fieldSystem->saveData), flagId);
}
void ClearTempFieldEventData(FieldSystem *fieldSystem) {
u8 *flags;
u16 *vars;
SaveVarsFlags *state = Save_VarsFlags_Get(fieldSystem->saveData);
flags = Save_VarsFlags_GetFlagAddr(state, MAPTEMP_FLAG_BASE);
memset(flags, 0, NUM_MAPTEMP_FLAGS / 8);
vars = Save_VarsFlags_GetVarAddr(state, TEMP_VAR_BASE);
memset(vars, 0, NUM_TEMP_VARS * 2);
}
void ClearDailyFlags(FieldSystem *fieldSystem) {
u8 *flags;
SaveVarsFlags *state = Save_VarsFlags_Get(fieldSystem->saveData);
flags = Save_VarsFlags_GetFlagAddr(state, DAILY_FLAG_BASE);
memset(flags, 0, NUM_DAILY_FLAGS / 8);
}
void FieldMove_SetArgs(FieldSystem *fieldSystem, u16 v8000, u16 v8001, u16 v8002, u16 v8003) {
*(u16 *)FieldSysGetAttrAddr(fieldSystem, SCRIPTENV_SPECIAL_VAR_8000) = v8000;
*(u16 *)FieldSysGetAttrAddr(fieldSystem, SCRIPTENV_SPECIAL_VAR_8001) = v8001;
*(u16 *)FieldSysGetAttrAddr(fieldSystem, SCRIPTENV_SPECIAL_VAR_8002) = v8002;
*(u16 *)FieldSysGetAttrAddr(fieldSystem, SCRIPTENV_SPECIAL_VAR_8003) = v8003;
}
u16 ScriptNumToTrainerNum(u16 script) {
if (script < _std_npc_trainer_2) {
return script - _std_npc_trainer + FIRST_TRAINER_INDEX;
} else {
return script - _std_npc_trainer_2 + FIRST_TRAINER_INDEX;
}
}
BOOL ScriptNoToDoublePartnerNo(u16 a0) {
return a0 >= _std_npc_trainer_2;
}
BOOL TrainerNumIsDouble(u32 trainer) {
return TrainerData_GetAttr(trainer, TRATTR_DOUBLEBTL) != 0;
}
BOOL TrainerFlagCheck(SaveData *saveData, u32 trainer) {
SaveVarsFlags *varsFlags = Save_VarsFlags_Get(saveData);
return Save_VarsFlags_CheckFlagInArray(varsFlags, trainer + TRAINER_FLAG_BASE);
}
void TrainerFlagSet(SaveData *saveData, u32 trainer) {
SaveVarsFlags *varsFlags = Save_VarsFlags_Get(saveData);
Save_VarsFlags_SetFlagInArray(varsFlags, trainer + TRAINER_FLAG_BASE);
}
void TrainerFlagClear(SaveData *saveData, u32 trainer) {
SaveVarsFlags *varsFlags = Save_VarsFlags_Get(saveData);
Save_VarsFlags_ClearFlagInArray(varsFlags, trainer + TRAINER_FLAG_BASE);
}
u16 HiddenItemScriptNoToFlagId(u16 script) {
return script - _std_hidden_item + HIDDEN_ITEMS_FLAG_BASE;
}
u16 HiddenItemScriptNoToHiddenItemIdx(u16 script) {
return script - _std_hidden_item;
}
u8 sub_02040578(u16 script) {
const struct HiddenItemData *table = sHiddenItemParam;
int i;
u16 hiddenItemIdx = HiddenItemScriptNoToHiddenItemIdx(script);
for (i = 0; i < NELEMS(sHiddenItemParam); i++) {
if (hiddenItemIdx == table[i].index) {
break;
}
}
if (i >= NELEMS(sHiddenItemParam)) {
GF_ASSERT(0);
return 0;
}
return table[i].unk3;
}
BOOL GetHiddenItemParams(ScriptEnvironment *env, u16 script) {
int i;
u16 idx;
const struct HiddenItemData *table;
u16 *var_8000;
u16 *var_8001;
u16 *var_8002;
var_8000 = FieldSysGetAttrAddrInternal(env, SCRIPTENV_SPECIAL_VAR_8000);
var_8001 = FieldSysGetAttrAddrInternal(env, SCRIPTENV_SPECIAL_VAR_8001);
var_8002 = FieldSysGetAttrAddrInternal(env, SCRIPTENV_SPECIAL_VAR_8002);
table = sHiddenItemParam;
idx = HiddenItemScriptNoToHiddenItemIdx(script);
for (i = 0; i < NELEMS(sHiddenItemParam); i++) {
if (idx == table[i].index) {
break;
}
}
if (i >= NELEMS(sHiddenItemParam)) {
GF_ASSERT(0);
return FALSE;
}
*var_8000 = table[i].itemId;
*var_8001 = table[i].quantity;
*var_8002 = HiddenItemScriptNoToFlagId(script);
return TRUE;
}
HiddenItemResponse *AllocAndFetchNearbyHiddenItems(FieldSystem *fieldSystem, HeapID heapId) {
HiddenItemResponse *ret;
const BG_EVENT *bgEvents;
int i;
int num_bgs;
int j;
int x;
int y;
int left;
int right;
int top;
int bottom;
j = 0;
num_bgs = Field_GetNumBgEvents(fieldSystem);
num_bgs++;
ret = AllocFromHeap(heapId, num_bgs * sizeof(HiddenItemResponse));
if (num_bgs == 1) {
ret[0].unk4 = 0xFF;
ret[0].x = -1;
ret[0].y = -1;
return ret;
}
bgEvents = Field_GetBgEvents(fieldSystem);
if (bgEvents == NULL) {
ret[0].unk4 = 0xFF;
ret[0].x = -1;
ret[0].y = -1;
return ret;
}
x = GetPlayerXCoord(fieldSystem->playerAvatar);
y = GetPlayerZCoord(fieldSystem->playerAvatar);
left = x - 17;
right = x + 17;
top = y - 17;
bottom = y + 17;
if (left < 0) {
left = 0;
}
if (top < 0) {
top = 0;
}
// UB: Out-of-array access
// To fix, subtract 1 from num_bgs in the condition clause
for (i = 0; i < num_bgs; i++) {
if (bgEvents[i].type == 2
&& !FieldSystem_FlagCheck(fieldSystem, HiddenItemScriptNoToFlagId(bgEvents[i].scriptId))) {
if (bgEvents[i].x >= left
&& bgEvents[i].x <= right
&& bgEvents[i].z >= top
&& bgEvents[i].z <= bottom) {
ret[j].unk4 = sub_02040578(bgEvents[i].scriptId);
ret[j].x = bgEvents[i].x - x;
ret[j].y = bgEvents[i].z - y;
j++;
}
}
}
ret[j].unk4 = 0xFF;
ret[j].x = -1;
ret[j].y = -1;
return ret;
}
void RunInitScript(FieldSystem *fieldSystem) {
StartMapLoadScript(fieldSystem, _std_init);
}
void StartMapLoadScript(FieldSystem *fieldSystem, u16 script) {
ScriptContext *ctx = CreateScriptContext(fieldSystem, script);
while (RunScriptCommand(ctx) == TRUE) {}
DestroyScriptContext(ctx);
}
BOOL TryStartMapScriptByType(FieldSystem *fieldSystem, u8 type) {
u8 *header;
u16 script;
if (fieldSystem->unkAC != 0) {
return FALSE;
}
header = MapEvents_GetScriptHeader(fieldSystem);
if (header == NULL) {
return FALSE;
}
script = (type == 1) ? GetMapSceneScriptId(fieldSystem, header, type) : GetMapLoadScriptId(header, type);
if (script == 0xFFFF) {
return FALSE;
}
(type == 1) ? StartMapSceneScript(fieldSystem, script, NULL) : StartMapLoadScript(fieldSystem, script);
return TRUE;
}
BOOL MapSceneScriptCheck(FieldSystem *fieldSystem) {
u8 *header;
u16 script;
if (fieldSystem->unkAC != 0) {
return FALSE;
}
header = MapEvents_GetScriptHeader(fieldSystem);
if (header == NULL) {
return FALSE;
}
script = GetMapSceneScriptId(fieldSystem, header, 1);
return script != 0xFFFF;
}
u16 GetMapLoadScriptId(u8 *header, u8 type) {
while (1) {
if (header[0] == 0) {
return 0xFFFF;
} else if (header[0] == type) {
return header[1] + (header[2] << 8);
} else {
header += 5;
}
}
}
u16 GetMapSceneScriptId(FieldSystem *fieldSystem, u8 *header, u8 type) {
u32 ofs;
while (1) {
if (header[0] == 0) {
return 0xFFFF;
} else if (header[0] == type) {
ofs = header[1] + (header[2] << 8) + (header[3] << 16) + (header[4] << 24);
header += 5;
break;
} else {
header += 5;
}
}
if (ofs == 0) {
return 0xFFFF;
}
header += ofs;
while (1) {
u16 var1;
u16 var2;
var1 = header[0] + (header[1] << 8);
if (var1 == 0) {
return 0xFFFF;
}
var2 = header[2] + (header[3] << 8);
if (FieldSystem_VarGet(fieldSystem, var1) == FieldSystem_VarGet(fieldSystem, var2)) {
return header[4] + (header[5] << 8);
}
header += 6;
}
}
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