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link.c
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#include "global.h"
#include "m4a.h"
#include "malloc.h"
#include "reload_save.h"
#include "save.h"
#include "bg.h"
#include "window.h"
#include "librfu.h"
#include "random.h"
#include "decompress.h"
#include "string_util.h"
#include "event_data.h"
#include "item_menu.h"
#include "overworld.h"
#include "gpu_regs.h"
#include "palette.h"
#include "task.h"
#include "scanline_effect.h"
#include "menu.h"
#include "text.h"
#include "strings.h"
#include "constants/songs.h"
#include "sound.h"
#include "trade.h"
#include "battle.h"
#include "link.h"
#include "link_rfu.h"
#include "constants/rgb.h"
#include "constants/trade.h"
// Window IDs for the link error screens
enum {
WIN_LINK_ERROR_TOP,
WIN_LINK_ERROR_MID,
WIN_LINK_ERROR_BOTTOM,
};
struct BlockTransfer
{
u16 pos;
u16 size;
const u8 *src;
bool8 active;
u8 multiplayerId;
};
struct LinkTestBGInfo
{
u32 screenBaseBlock;
u32 paletteNum;
u32 baseChar;
u32 unused;
};
static struct BlockTransfer sBlockSend;
static struct BlockTransfer sBlockRecv[MAX_LINK_PLAYERS];
static u32 sBlockSendDelayCounter;
static bool32 sDummy1; // Never read
static bool8 sDummy2; // Never assigned, read in unused function
static u32 sPlayerDataExchangeStatus;
static bool32 sDummy3; // Never read
static u8 sLinkTestLastBlockSendPos;
static u8 sLinkTestLastBlockRecvPos[MAX_LINK_PLAYERS];
static u8 sNumVBlanksWithoutSerialIntr;
static bool8 sSendBufferEmpty;
static u16 sSendNonzeroCheck;
static u16 sRecvNonzeroCheck;
static u8 sChecksumAvailable;
static u8 sHandshakePlayerCount;
COMMON_DATA u16 gLinkPartnersHeldKeys[6] = {0};
COMMON_DATA u32 gLinkDebugSeed = 0;
COMMON_DATA struct LinkPlayerBlock gLocalLinkPlayerBlock = {0};
COMMON_DATA bool8 gLinkErrorOccurred = 0;
COMMON_DATA u32 gLinkDebugFlags = 0;
COMMON_DATA u32 gLinkFiller1 = 0;
COMMON_DATA bool8 gRemoteLinkPlayersNotReceived[MAX_LINK_PLAYERS] = {0};
COMMON_DATA u8 gBlockReceivedStatus[MAX_LINK_PLAYERS] = {0};
COMMON_DATA u32 gLinkFiller2 = 0;
COMMON_DATA u16 gLinkHeldKeys = 0;
COMMON_DATA u16 ALIGNED(4) gRecvCmds[MAX_RFU_PLAYERS][CMD_LENGTH] = {0};
COMMON_DATA u32 gLinkStatus = 0;
COMMON_DATA bool8 gLinkDummy1 = 0; // Never read
COMMON_DATA bool8 gLinkDummy2 = 0; // Never read
COMMON_DATA bool8 gReadyToExitStandby[MAX_LINK_PLAYERS] = {0};
COMMON_DATA bool8 gReadyToCloseLink[MAX_LINK_PLAYERS] = {0};
COMMON_DATA u16 gReadyCloseLinkType = 0; // Never read
COMMON_DATA u8 gSuppressLinkErrorMessage = 0;
COMMON_DATA bool8 gWirelessCommType = 0;
COMMON_DATA bool8 gSavedLinkPlayerCount = 0;
COMMON_DATA u16 gSendCmd[CMD_LENGTH] = {0};
COMMON_DATA u8 gSavedMultiplayerId = 0;
COMMON_DATA bool8 gReceivedRemoteLinkPlayers = 0;
COMMON_DATA struct LinkTestBGInfo gLinkTestBGInfo = {0};
COMMON_DATA void (*gLinkCallback)(void) = NULL;
COMMON_DATA u8 gShouldAdvanceLinkState = 0;
COMMON_DATA u16 gLinkTestBlockChecksums[MAX_LINK_PLAYERS] = {0};
COMMON_DATA u8 gBlockRequestType = 0;
COMMON_DATA u32 gLinkFiller3 = 0;
COMMON_DATA u32 gLinkFiller4 = 0;
COMMON_DATA u32 gLinkFiller5 = 0;
COMMON_DATA u8 gLastSendQueueCount = 0;
COMMON_DATA struct Link gLink = {0};
COMMON_DATA u8 gLastRecvQueueCount = 0;
COMMON_DATA u16 gLinkSavedIme = 0;
static EWRAM_DATA u8 sLinkTestDebugValuesEnabled = 0;
static EWRAM_DATA u8 sDummyFlag = FALSE;
EWRAM_DATA u32 gBerryBlenderKeySendAttempts = 0;
EWRAM_DATA u16 gBlockRecvBuffer[MAX_RFU_PLAYERS][BLOCK_BUFFER_SIZE / 2] = {};
EWRAM_DATA u8 gBlockSendBuffer[BLOCK_BUFFER_SIZE] = {};
static EWRAM_DATA bool8 sLinkOpen = FALSE;
EWRAM_DATA u16 gLinkType = 0;
static EWRAM_DATA u16 sTimeOutCounter = 0;
EWRAM_DATA struct LinkPlayer gLocalLinkPlayer = {};
EWRAM_DATA struct LinkPlayer gLinkPlayers[MAX_RFU_PLAYERS] = {};
static EWRAM_DATA struct LinkPlayer sSavedLinkPlayers[MAX_RFU_PLAYERS] = {};
static EWRAM_DATA struct {
u32 status;
u8 lastRecvQueueCount;
u8 lastSendQueueCount;
bool8 disconnected;
} sLinkErrorBuffer = {};
static EWRAM_DATA u16 sReadyCloseLinkAttempts = 0; // never read
static EWRAM_DATA void *sLinkErrorBgTilemapBuffer = NULL;
static void InitLocalLinkPlayer(void);
static void VBlankCB_LinkError(void);
static void CB2_LinkTest(void);
static void ProcessRecvCmds(u8);
static void LinkCB_SendHeldKeys(void);
static void ResetBlockSend(void);
static bool32 InitBlockSend(const void *, size_t);
static void LinkCB_BlockSendBegin(void);
static void LinkCB_BlockSend(void);
static void LinkCB_BlockSendEnd(void);
static void SetBlockReceivedFlag(u8);
static u16 LinkTestCalcBlockChecksum(const u16 *, u16);
static void LinkTest_PrintHex(u32, u8, u8, u8);
static void LinkCB_RequestPlayerDataExchange(void);
static void Task_PrintTestData(u8);
static void LinkCB_ReadyCloseLink(void);
static void LinkCB_WaitCloseLink(void);
static void LinkCB_ReadyCloseLinkWithJP(void);
static void LinkCB_WaitCloseLinkWithJP(void);
static void LinkCB_Standby(void);
static void LinkCB_StandbyForAll(void);
static void TrySetLinkErrorBuffer(void);
static void CB2_PrintErrorMessage(void);
static bool8 IsSioMultiMaster(void);
static void SetWirelessCommType0_Internal(void);
static void DisableSerial(void);
static void EnableSerial(void);
static void CheckMasterOrSlave(void);
static void InitTimer(void);
static void EnqueueSendCmd(u16 *sendCmd);
static void DequeueRecvCmds(u16 (*recvCmds)[CMD_LENGTH]);
static void StartTransfer(void);
static bool8 DoHandshake(void);
static void DoRecv(void);
static void DoSend(void);
static void StopTimer(void);
static void SendRecvDone(void);
static const u16 sWirelessLinkDisplayPal[] = INCBIN_U16("graphics/link/wireless_display.gbapal");
static const u32 sWirelessLinkDisplayGfx[] = INCBIN_U32("graphics/link/wireless_display.4bpp.lz");
static const u32 sWirelessLinkDisplayTilemap[] = INCBIN_U32("graphics/link/wireless_display.bin.lz");
static const u16 sLinkTestDigitsPal[] = INCBIN_U16("graphics/link/test_digits.gbapal");
static const u16 sLinkTestDigitsGfx[] = INCBIN_U16("graphics/link/test_digits.4bpp");
static const u8 sUnusedTransparentWhite[] = _("{HIGHLIGHT TRANSPARENT}{COLOR WHITE}");
static const u16 sCommErrorBg_Gfx[] = INCBIN_U16("graphics/link/comm_error_bg.4bpp");
static const struct BlockRequest sBlockRequests[] = {
[BLOCK_REQ_SIZE_NONE] = {gBlockSendBuffer, 200},
[BLOCK_REQ_SIZE_200] = {gBlockSendBuffer, 200},
[BLOCK_REQ_SIZE_100] = {gBlockSendBuffer, 100},
[BLOCK_REQ_SIZE_220] = {gBlockSendBuffer, 220},
[BLOCK_REQ_SIZE_40] = {gBlockSendBuffer, 40}
};
static const u8 sBGControlRegs[] = {
REG_OFFSET_BG0CNT,
REG_OFFSET_BG1CNT,
REG_OFFSET_BG2CNT,
REG_OFFSET_BG3CNT
};
static const char sASCIIGameFreakInc[] = "GameFreak inc.";
static const char sASCIITestPrint[] = "TEST PRINT\nP0\nP1\nP2\nP3";
static const struct BgTemplate sLinkErrorBgTemplates[] = {
{
.bg = 0,
.charBaseIndex = 2,
.mapBaseIndex = 31,
.priority = 0
}, {
.bg = 1,
.charBaseIndex = 0,
.mapBaseIndex = 8,
.priority = 1
}
};
static const struct WindowTemplate sLinkErrorWindowTemplates[] = {
[WIN_LINK_ERROR_TOP] = {
.bg = 0,
.tilemapLeft = 0,
.tilemapTop = 0,
.width = DISPLAY_TILE_WIDTH,
.height = 5,
.paletteNum = 15,
.baseBlock = 0x002
},
[WIN_LINK_ERROR_MID] = {
.bg = 0,
.tilemapLeft = 0,
.tilemapTop = 6,
.width = DISPLAY_TILE_WIDTH,
.height = 7,
.paletteNum = 15,
.baseBlock = 0x098
},
[WIN_LINK_ERROR_BOTTOM] = {
.bg = 0,
.tilemapLeft = 0,
.tilemapTop = 13,
.width = DISPLAY_TILE_WIDTH,
.height = 7,
.paletteNum = 15,
.baseBlock = 0x16A
}, DUMMY_WIN_TEMPLATE
};
static const u8 sTextColors[] = { TEXT_COLOR_TRANSPARENT, TEXT_COLOR_WHITE, TEXT_COLOR_DARK_GRAY };
static const u8 sUnusedData[] = {0x00, 0xFF, 0xFE, 0xFF, 0x00};
bool8 IsWirelessAdapterConnected(void)
{
SetWirelessCommType1();
InitRFUAPI();
if (rfu_LMAN_REQBN_softReset_and_checkID() == RFU_ID)
{
rfu_REQ_stopMode();
rfu_waitREQComplete();
return TRUE;
}
SetWirelessCommType0_Internal();
CloseLink();
RestoreSerialTimer3IntrHandlers();
return FALSE;
}
void Task_DestroySelf(u8 taskId)
{
DestroyTask(taskId);
}
static void InitLinkTestBG(u8 paletteNum, u8 bgNum, u8 screenBaseBlock, u8 charBaseBlock, u16 baseChar)
{
LoadPalette(sLinkTestDigitsPal, BG_PLTT_ID(paletteNum), PLTT_SIZE_4BPP);
DmaCopy16(3, sLinkTestDigitsGfx, (u16 *)BG_CHAR_ADDR(charBaseBlock) + (16 * baseChar), sizeof sLinkTestDigitsGfx);
gLinkTestBGInfo.screenBaseBlock = screenBaseBlock;
gLinkTestBGInfo.paletteNum = paletteNum;
gLinkTestBGInfo.baseChar = baseChar;
switch (bgNum)
{
case 1:
SetGpuReg(REG_OFFSET_BG1CNT, BGCNT_SCREENBASE(screenBaseBlock) | BGCNT_PRIORITY(1) | BGCNT_CHARBASE(charBaseBlock));
break;
case 2:
SetGpuReg(REG_OFFSET_BG2CNT, BGCNT_SCREENBASE(screenBaseBlock) | BGCNT_PRIORITY(1) | BGCNT_CHARBASE(charBaseBlock));
break;
case 3:
SetGpuReg(REG_OFFSET_BG3CNT, BGCNT_SCREENBASE(screenBaseBlock) | BGCNT_PRIORITY(1) | BGCNT_CHARBASE(charBaseBlock));
break;
}
SetGpuReg(REG_OFFSET_BG0HOFS + bgNum * 4, 0);
SetGpuReg(REG_OFFSET_BG0VOFS + bgNum * 4, 0);
}
static void UNUSED LoadLinkTestBgGfx(u8 paletteNum, u8 bgNum, u8 screenBaseBlock, u8 charBaseBlock)
{
LoadPalette(sLinkTestDigitsPal, BG_PLTT_ID(paletteNum), PLTT_SIZE_4BPP);
DmaCopy16(3, sLinkTestDigitsGfx, (u16 *)BG_CHAR_ADDR(charBaseBlock), sizeof sLinkTestDigitsGfx);
gLinkTestBGInfo.screenBaseBlock = screenBaseBlock;
gLinkTestBGInfo.paletteNum = paletteNum;
gLinkTestBGInfo.baseChar = 0;
SetGpuReg(sBGControlRegs[bgNum], BGCNT_SCREENBASE(screenBaseBlock) | BGCNT_CHARBASE(charBaseBlock));
}
static void UNUSED LinkTestScreen(void)
{
int i;
ResetSpriteData();
FreeAllSpritePalettes();
ResetTasks();
SetVBlankCallback(VBlankCB_LinkError);
ResetBlockSend();
gLinkType = LINKTYPE_TRADE;
OpenLink();
SeedRng(gMain.vblankCounter2);
for (i = 0; i < TRAINER_ID_LENGTH; i++)
gSaveBlock2Ptr->playerTrainerId[i] = Random() % 256;
InitLinkTestBG(0, 2, 4, 0, 0);
SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_MODE_0 | DISPCNT_OBJ_1D_MAP | DISPCNT_BG0_ON | DISPCNT_BG2_ON | DISPCNT_OBJ_ON);
CreateTask(Task_DestroySelf, 0);
RunTasks();
AnimateSprites();
BuildOamBuffer();
UpdatePaletteFade();
sDummy3 = FALSE;
InitLocalLinkPlayer();
CreateTask(Task_PrintTestData, 0);
SetMainCallback2(CB2_LinkTest);
}
void SetLocalLinkPlayerId(u8 playerId)
{
gLocalLinkPlayer.id = playerId;
}
static void InitLocalLinkPlayer(void)
{
gLocalLinkPlayer.trainerId = gSaveBlock2Ptr->playerTrainerId[0] | (gSaveBlock2Ptr->playerTrainerId[1] << 8) | (gSaveBlock2Ptr->playerTrainerId[2] << 16) | (gSaveBlock2Ptr->playerTrainerId[3] << 24);
StringCopy(gLocalLinkPlayer.name, gSaveBlock2Ptr->playerName);
gLocalLinkPlayer.gender = gSaveBlock2Ptr->playerGender;
gLocalLinkPlayer.linkType = gLinkType;
gLocalLinkPlayer.language = gGameLanguage;
gLocalLinkPlayer.version = gGameVersion + 0x4000;
gLocalLinkPlayer.lp_field_2 = 0x8000;
gLocalLinkPlayer.progressFlags = IsNationalPokedexEnabled();
if (FlagGet(FLAG_IS_CHAMPION))
{
gLocalLinkPlayer.progressFlags |= 0x10;
}
}
static void VBlankCB_LinkError(void)
{
LoadOam();
ProcessSpriteCopyRequests();
TransferPlttBuffer();
}
static void InitLink(void)
{
int i;
for (i = 0; i < CMD_LENGTH; i++)
gSendCmd[i] = LINKCMD_NONE;
sLinkOpen = TRUE;
EnableSerial();
}
static void Task_TriggerHandshake(u8 taskId)
{
if (++gTasks[taskId].data[0] == 5)
{
gShouldAdvanceLinkState = 1;
DestroyTask(taskId);
}
}
void OpenLink(void)
{
int i;
if (!gWirelessCommType)
{
ResetSerial();
InitLink();
gLinkCallback = LinkCB_RequestPlayerDataExchange;
gLinkVSyncDisabled = FALSE;
gLinkErrorOccurred = FALSE;
gSuppressLinkErrorMessage = FALSE;
ResetBlockReceivedFlags();
ResetBlockSend();
sDummy1 = FALSE;
gLinkDummy2 = FALSE;
gLinkDummy1 = FALSE;
gReadyCloseLinkType = 0;
CreateTask(Task_TriggerHandshake, 2);
}
else
{
InitRFUAPI();
}
gReceivedRemoteLinkPlayers = 0;
for (i = 0; i < MAX_LINK_PLAYERS; i++)
{
gRemoteLinkPlayersNotReceived[i] = TRUE;
gReadyToCloseLink[i] = FALSE;
gReadyToExitStandby[i] = FALSE;
}
}
void CloseLink(void)
{
gReceivedRemoteLinkPlayers = FALSE;
if (gWirelessCommType)
LinkRfu_Shutdown();
sLinkOpen = FALSE;
DisableSerial();
}
static void TestBlockTransfer(u8 nothing, u8 is, u8 used)
{
u8 i;
u8 status;
if (sLinkTestLastBlockSendPos != sBlockSend.pos)
{
LinkTest_PrintHex(sBlockSend.pos, 2, 3, 2);
sLinkTestLastBlockSendPos = sBlockSend.pos;
}
for (i = 0; i < MAX_LINK_PLAYERS; i++)
{
if (sLinkTestLastBlockRecvPos[i] != sBlockRecv[i].pos)
{
LinkTest_PrintHex(sBlockRecv[i].pos, 2, i + 4, 2);
sLinkTestLastBlockRecvPos[i] = sBlockRecv[i].pos;
}
}
status = GetBlockReceivedStatus();
if (status == 0xF) // 0b1111
{
for (i = 0; i < MAX_LINK_PLAYERS; i++)
{
if ((status >> i) & 1)
{
gLinkTestBlockChecksums[i] = LinkTestCalcBlockChecksum(gBlockRecvBuffer[i], sBlockRecv[i].size);
ResetBlockReceivedFlag(i);
if (gLinkTestBlockChecksums[i] != 0x0342)
{
sLinkTestDebugValuesEnabled = FALSE;
sDummyFlag = FALSE;
}
}
}
}
}
static void LinkTestProcessKeyInput(void)
{
if (JOY_NEW(A_BUTTON))
{
gShouldAdvanceLinkState = 1;
}
if (JOY_HELD(B_BUTTON))
{
InitBlockSend(gHeap + 0x4000, 0x00002004);
}
if (JOY_NEW(L_BUTTON))
{
BeginNormalPaletteFade(PALETTES_ALL, 0, 16, 0, RGB(2, 0, 0));
}
if (JOY_NEW(START_BUTTON))
{
SetSuppressLinkErrorMessage(TRUE);
}
if (JOY_NEW(R_BUTTON))
{
TrySavingData(SAVE_LINK);
}
if (JOY_NEW(SELECT_BUTTON))
{
SetCloseLinkCallback();
}
if (sLinkTestDebugValuesEnabled)
{
SetLinkDebugValues(gMain.vblankCounter2, gLinkCallback ? gLinkVSyncDisabled : gLinkVSyncDisabled | 0x10);
}
}
static void CB2_LinkTest(void)
{
LinkTestProcessKeyInput();
TestBlockTransfer(1, 1, 0);
RunTasks();
AnimateSprites();
BuildOamBuffer();
UpdatePaletteFade();
}
u16 LinkMain2(const u16 *heldKeys)
{
u8 i;
if (!sLinkOpen)
return 0;
for (i = 0; i < CMD_LENGTH; i++)
gSendCmd[i] = 0;
gLinkHeldKeys = *heldKeys;
if (gLinkStatus & LINK_STAT_CONN_ESTABLISHED)
{
ProcessRecvCmds(SIO_MULTI_CNT->id);
if (gLinkCallback != NULL)
gLinkCallback();
TrySetLinkErrorBuffer();
}
return gLinkStatus;
}
static void HandleReceiveRemoteLinkPlayer(u8 who)
{
int i;
int count;
count = 0;
gRemoteLinkPlayersNotReceived[who] = FALSE;
for (i = 0; i < GetLinkPlayerCount_2(); i++)
{
count += gRemoteLinkPlayersNotReceived[i];
}
if (count == 0 && gReceivedRemoteLinkPlayers == 0)
{
gReceivedRemoteLinkPlayers = 1;
}
}
static void ProcessRecvCmds(u8 unused)
{
u16 i;
for (i = 0; i < MAX_LINK_PLAYERS; i++)
{
gLinkPartnersHeldKeys[i] = 0;
if (gRecvCmds[i][0] == 0)
{
continue;
}
switch (gRecvCmds[i][0])
{
case LINKCMD_SEND_LINK_TYPE:
{
struct LinkPlayerBlock *block;
InitLocalLinkPlayer();
block = &gLocalLinkPlayerBlock;
block->linkPlayer = gLocalLinkPlayer;
memcpy(block->magic1, sASCIIGameFreakInc, sizeof(block->magic1) - 1);
memcpy(block->magic2, sASCIIGameFreakInc, sizeof(block->magic2) - 1);
InitBlockSend(block, sizeof(*block));
break;
}
case LINKCMD_BLENDER_SEND_KEYS:
gLinkPartnersHeldKeys[i] = gRecvCmds[i][1];
break;
case LINKCMD_DUMMY_1:
gLinkDummy2 = TRUE;
break;
case LINKCMD_DUMMY_2:
gLinkDummy2 = TRUE;
break;
case LINKCMD_INIT_BLOCK:
{
struct BlockTransfer *blockRecv;
blockRecv = &sBlockRecv[i];
blockRecv->pos = 0;
blockRecv->size = gRecvCmds[i][1];
blockRecv->multiplayerId = gRecvCmds[i][2];
break;
}
case LINKCMD_CONT_BLOCK:
{
if (sBlockRecv[i].size > BLOCK_BUFFER_SIZE)
{
u16 *buffer;
u16 j;
buffer = (u16 *)gDecompressionBuffer;
for (j = 0; j < CMD_LENGTH - 1; j++)
{
buffer[(sBlockRecv[i].pos / 2) + j] = gRecvCmds[i][j + 1];
}
}
else
{
u16 j;
for (j = 0; j < CMD_LENGTH - 1; j++)
{
gBlockRecvBuffer[i][(sBlockRecv[i].pos / 2) + j] = gRecvCmds[i][j + 1];
}
}
sBlockRecv[i].pos += (CMD_LENGTH - 1) * 2;
if (sBlockRecv[i].pos >= sBlockRecv[i].size)
{
if (gRemoteLinkPlayersNotReceived[i] == TRUE)
{
struct LinkPlayerBlock *block;
struct LinkPlayer *linkPlayer;
block = (struct LinkPlayerBlock *)&gBlockRecvBuffer[i];
linkPlayer = &gLinkPlayers[i];
*linkPlayer = block->linkPlayer;
if ((linkPlayer->version & 0xFF) == VERSION_RUBY || (linkPlayer->version & 0xFF) == VERSION_SAPPHIRE)
{
linkPlayer->progressFlagsCopy = 0;
linkPlayer->neverRead = 0;
linkPlayer->progressFlags = 0;
}
ConvertLinkPlayerName(linkPlayer);
if (strcmp(block->magic1, sASCIIGameFreakInc) != 0
|| strcmp(block->magic2, sASCIIGameFreakInc) != 0)
{
SetMainCallback2(CB2_LinkError);
}
else
{
HandleReceiveRemoteLinkPlayer(i);
}
}
else
{
SetBlockReceivedFlag(i);
}
}
}
break;
case LINKCMD_READY_CLOSE_LINK:
gReadyToCloseLink[i] = TRUE;
break;
case LINKCMD_READY_EXIT_STANDBY:
gReadyToExitStandby[i] = TRUE;
break;
case LINKCMD_BLENDER_NO_PBLOCK_SPACE:
SetBerryBlenderLinkCallback();
break;
case LINKCMD_SEND_BLOCK_REQ:
SendBlock(0, sBlockRequests[gRecvCmds[i][1]].address, sBlockRequests[gRecvCmds[i][1]].size);
break;
case LINKCMD_SEND_HELD_KEYS:
gLinkPartnersHeldKeys[i] = gRecvCmds[i][1];
break;
}
}
}
static void BuildSendCmd(u16 command)
{
switch (command)
{
case LINKCMD_SEND_LINK_TYPE:
gSendCmd[0] = LINKCMD_SEND_LINK_TYPE;
gSendCmd[1] = gLinkType;
break;
case LINKCMD_READY_EXIT_STANDBY:
gSendCmd[0] = LINKCMD_READY_EXIT_STANDBY;
break;
case LINKCMD_BLENDER_SEND_KEYS:
gSendCmd[0] = LINKCMD_BLENDER_SEND_KEYS;
gSendCmd[1] = gMain.heldKeys;
break;
case LINKCMD_DUMMY_1:
gSendCmd[0] = LINKCMD_DUMMY_1;
break;
case LINKCMD_SEND_EMPTY:
gSendCmd[0] = LINKCMD_SEND_EMPTY;
gSendCmd[1] = 0;
break;
case LINKCMD_SEND_0xEE:
{
u8 i;
gSendCmd[0] = LINKCMD_SEND_0xEE;
for (i = 0; i < 5; i++)
gSendCmd[i + 1] = 0xEE;
break;
}
case LINKCMD_INIT_BLOCK:
gSendCmd[0] = LINKCMD_INIT_BLOCK;
gSendCmd[1] = sBlockSend.size;
gSendCmd[2] = sBlockSend.multiplayerId + 0x80;
break;
case LINKCMD_BLENDER_NO_PBLOCK_SPACE:
gSendCmd[0] = LINKCMD_BLENDER_NO_PBLOCK_SPACE;
break;
case LINKCMD_SEND_ITEM:
gSendCmd[0] = LINKCMD_SEND_ITEM;
gSendCmd[1] = gSpecialVar_ItemId;
break;
case LINKCMD_SEND_BLOCK_REQ:
gSendCmd[0] = LINKCMD_SEND_BLOCK_REQ;
gSendCmd[1] = gBlockRequestType;
break;
case LINKCMD_READY_CLOSE_LINK:
gSendCmd[0] = LINKCMD_READY_CLOSE_LINK;
gSendCmd[1] = gReadyCloseLinkType;
break;
case LINKCMD_DUMMY_2:
gSendCmd[0] = LINKCMD_DUMMY_2;
break;
case LINKCMD_SEND_HELD_KEYS:
if (gHeldKeyCodeToSend == 0 || gLinkTransferringData)
break;
gSendCmd[0] = LINKCMD_SEND_HELD_KEYS;
gSendCmd[1] = gHeldKeyCodeToSend;
break;
}
}
void StartSendingKeysToLink(void)
{
if (gWirelessCommType)
StartSendingKeysToRfu();
gLinkCallback = LinkCB_SendHeldKeys;
}
bool32 IsSendingKeysToLink(void)
{
if (gWirelessCommType)
return IsSendingKeysToRfu();
if (gLinkCallback == LinkCB_SendHeldKeys)
return TRUE;
return FALSE;
}
static void LinkCB_SendHeldKeys(void)
{
if (gReceivedRemoteLinkPlayers == TRUE)
BuildSendCmd(LINKCMD_SEND_HELD_KEYS);
}
void ClearLinkCallback(void)
{
if (gWirelessCommType)
ClearLinkRfuCallback();
else
gLinkCallback = NULL;
}
void ClearLinkCallback_2(void)
{
if (gWirelessCommType)
ClearLinkRfuCallback();
else
gLinkCallback = NULL;
}
u8 GetLinkPlayerCount(void)
{
if (gWirelessCommType)
return Rfu_GetLinkPlayerCount();
return EXTRACT_PLAYER_COUNT(gLinkStatus);
}
static int AreAnyLinkPlayersUsingVersions(u32 version1, u32 version2)
{
int i;
u8 nPlayers;
nPlayers = GetLinkPlayerCount();
for (i = 0; i < nPlayers; i++)
{
if ((gLinkPlayers[i].version & 0xFF) == version1
|| (gLinkPlayers[i].version & 0xFF) == version2)
return 1;
}
return -1;
}
u32 LinkDummy_Return2(void)
{
return 2;
}
static bool32 UNUSED IsFullLinkGroupWithNoRS(void)
{
if (GetLinkPlayerCount() != MAX_LINK_PLAYERS || AreAnyLinkPlayersUsingVersions(VERSION_RUBY, VERSION_SAPPHIRE) < 0)
{
return FALSE;
}
return TRUE;
}
bool32 Link_AnyPartnersPlayingRubyOrSapphire(void)
{
if (AreAnyLinkPlayersUsingVersions(VERSION_RUBY, VERSION_SAPPHIRE) >= 0)
{
return TRUE;
}
return FALSE;
}
bool32 Link_AnyPartnersPlayingFRLG_JP(void)
{
int i;
i = AreAnyLinkPlayersUsingVersions(VERSION_FIRE_RED, VERSION_LEAF_GREEN);
if (i >= 0 && gLinkPlayers[i].language == LANGUAGE_JAPANESE)
{
return TRUE;
}
return FALSE;
}
void OpenLinkTimed(void)
{
sPlayerDataExchangeStatus = EXCHANGE_NOT_STARTED;
sTimeOutCounter = 0;
OpenLink();
}
u8 GetLinkPlayerDataExchangeStatusTimed(int minPlayers, int maxPlayers)
{
int i;
int count;
u32 index;
u8 numPlayers;
u32 linkType1;
u32 linkType2;
count = 0;
if (gReceivedRemoteLinkPlayers == TRUE)
{
numPlayers = GetLinkPlayerCount_2();
if (minPlayers > numPlayers || numPlayers > maxPlayers)
{
sPlayerDataExchangeStatus = EXCHANGE_WRONG_NUM_PLAYERS;
return sPlayerDataExchangeStatus;
}
else
{
if (GetLinkPlayerCount() == 0)
{
gLinkErrorOccurred = TRUE;
CloseLink();
}
for (i = 0, index = 0; i < GetLinkPlayerCount(); index++, i++)
{
if (gLinkPlayers[index].linkType == gLinkPlayers[0].linkType)
{
count++;
}
}
if (count == GetLinkPlayerCount())
{
if (gLinkPlayers[0].linkType == LINKTYPE_TRADE_SETUP)
{
switch (GetGameProgressForLinkTrade())
{
case TRADE_PLAYER_NOT_READY:
sPlayerDataExchangeStatus = EXCHANGE_PLAYER_NOT_READY;
break;
case TRADE_PARTNER_NOT_READY:
sPlayerDataExchangeStatus = EXCHANGE_PARTNER_NOT_READY;
break;
case TRADE_BOTH_PLAYERS_READY:
sPlayerDataExchangeStatus = EXCHANGE_COMPLETE;
break;
}
}
else
{
sPlayerDataExchangeStatus = EXCHANGE_COMPLETE;
}
}
else
{
sPlayerDataExchangeStatus = EXCHANGE_DIFF_SELECTIONS;
linkType1 = gLinkPlayers[GetMultiplayerId()].linkType;
linkType2 = gLinkPlayers[GetMultiplayerId() ^ 1].linkType;
if ((linkType1 == LINKTYPE_BATTLE_TOWER_50 && linkType2 == LINKTYPE_BATTLE_TOWER_OPEN)
|| (linkType1 == LINKTYPE_BATTLE_TOWER_OPEN && linkType2 == LINKTYPE_BATTLE_TOWER_50))
{
// 3 below indicates partner made different level mode selection
// See BattleFrontier_BattleTowerLobby_EventScript_AbortLinkDifferentSelections
gSpecialVar_0x8005 = 3;
}
}
}
}
else if (++sTimeOutCounter > 600)
{
sPlayerDataExchangeStatus = EXCHANGE_TIMED_OUT;
}
return sPlayerDataExchangeStatus;
}
bool8 IsLinkPlayerDataExchangeComplete(void)
{
u8 i;
u8 count;
bool8 retval;
count = 0;
for (i = 0; i < GetLinkPlayerCount(); i++)
{
if (gLinkPlayers[i].linkType == gLinkPlayers[0].linkType)
count++;
}
if (count == GetLinkPlayerCount())
{
retval = TRUE;
sPlayerDataExchangeStatus = EXCHANGE_COMPLETE;
}
else
{
retval = FALSE;
sPlayerDataExchangeStatus = EXCHANGE_DIFF_SELECTIONS;
}
return retval;
}
u32 GetLinkPlayerTrainerId(u8 who)
{
return gLinkPlayers[who].trainerId;
}
void ResetLinkPlayers(void)
{
int i;
for (i = 0; i <= MAX_LINK_PLAYERS; i++)
gLinkPlayers[i] = (struct LinkPlayer){};
}
static void ResetBlockSend(void)
{
sBlockSend.active = FALSE;
sBlockSend.pos = 0;
sBlockSend.size = 0;
sBlockSend.src = NULL;
}
static bool32 InitBlockSend(const void *src, size_t size)
{
if (sBlockSend.active)
{
return FALSE;
}
sBlockSend.multiplayerId = GetMultiplayerId();
sBlockSend.active = TRUE;
sBlockSend.size = size;
sBlockSend.pos = 0;
if (size > BLOCK_BUFFER_SIZE)
{
sBlockSend.src = src;
}
else
{
if (src != gBlockSendBuffer)
memcpy(gBlockSendBuffer, src, size);
sBlockSend.src = gBlockSendBuffer;
}
BuildSendCmd(LINKCMD_INIT_BLOCK);
gLinkCallback = LinkCB_BlockSendBegin;
sBlockSendDelayCounter = 0;
return TRUE;
}
static void LinkCB_BlockSendBegin(void)
{
if (++sBlockSendDelayCounter > 2)
gLinkCallback = LinkCB_BlockSend;
}
static void LinkCB_BlockSend(void)
{
int i;
const u8 *src;
src = sBlockSend.src;
gSendCmd[0] = LINKCMD_CONT_BLOCK;
for (i = 0; i < CMD_LENGTH - 1; i++)
{
gSendCmd[i + 1] = (src[sBlockSend.pos + i * 2 + 1] << 8) | src[sBlockSend.pos + i * 2];
}
sBlockSend.pos += 14;
if (sBlockSend.size <= sBlockSend.pos)
{
sBlockSend.active = FALSE;
gLinkCallback = LinkCB_BlockSendEnd;
}
}
static void LinkCB_BlockSendEnd(void)
{
gLinkCallback = NULL;
}
static void LinkCB_BerryBlenderSendHeldKeys(void)
{
GetMultiplayerId();
BuildSendCmd(LINKCMD_BLENDER_SEND_KEYS);
gBerryBlenderKeySendAttempts++;