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#include <windows.h>

#ifndef ERA_DEFINED
#define ERA_DEFINED

#define NOALIGN __declspec(align(1))

/* Hooks */
// jmp, 5 bytes
#define HOOKTYPE_JUMP 0
// call, 5 bytes
#define HOOKTYPE_CALL 1
/*
Opcode: call, 5 bytes.
Automatically creates safe bridge to high-level function "F".
STDCALL LONGBOOL F (PHookHandlerArgs Context); Returns "Execute default code" flag.
If default code should be executed, it can contain any commands except jumps.
*/
#define HOOKTYPE_BRIDGE 2

#define OPCODE_JUMP 0xE9
#define OPCODE_CALL 0xE8
#define OPCODE_RET 0xC3

#define EXEC_DEF_CODE 0xFFFFFFFF
#define DONT_EXEC_DEF_CODE 0x00000000

/* Erm triggers */
#define TRIGGER_FU1 0
#define TRIGGER_FU30000 29999
#define TRIGGER_TM1 30000
#define TRIGGER_TM100 30099
#define TRIGGER_HE0 30100
#define TRIGGER_HE198 30298
#define TRIGGER_BA0 30300
#define TRIGGER_BA1 30301
#define TRIGGER_BR 30302
#define TRIGGER_BG0 30303
#define TRIGGER_BG1 30304
#define TRIGGER_MW0 30305
#define TRIGGER_MW1 30306
#define TRIGGER_MR0 30307
#define TRIGGER_MR1 30308
#define TRIGGER_MR2 30309
#define TRIGGER_CM0 30310
#define TRIGGER_CM1 30311
#define TRIGGER_CM2 30312
#define TRIGGER_CM3 30313
#define TRIGGER_CM4 30314
#define TRIGGER_AE0 30315
#define TRIGGER_AE1 30316
#define TRIGGER_MM0 30317
#define TRIGGER_MM1 30318
#define TRIGGER_CM5 30319
#define TRIGGER_MP 30320
#define TRIGGER_SN 30321
#define TRIGGER_MG0 30322
#define TRIGGER_MG1 30323
#define TRIGGER_TH0 30324
#define TRIGGER_TH1 30325
#define TRIGGER_IP0 30330
#define TRIGGER_IP1 30331
#define TRIGGER_IP2 30332
#define TRIGGER_IP3 30333
#define TRIGGER_CO0 30340
#define TRIGGER_CO1 30341
#define TRIGGER_CO2 30342
#define TRIGGER_CO3 30343
#define TRIGGER_BA50 30350
#define TRIGGER_BA51 30351
#define TRIGGER_BA52 30352
#define TRIGGER_BA53 30353
#define TRIGGER_GM0 30360
#define TRIGGER_GM1 30361
#define TRIGGER_PI 30370
#define TRIGGER_DL 30371
#define TRIGGER_HM 30400
#define TRIGGER_HM0 30401
#define TRIGGER_HM198 30599
#define TRIGGER_HL 30600
#define TRIGGER_HL0 30601
#define TRIGGER_HL198 30799
#define TRIGGER_BF 30800
#define TRIGGER_MF1 30801
#define TRIGGER_TL0 30900
#define TRIGGER_TL1 30901
#define TRIGGER_TL2 30902
#define TRIGGER_TL3 30903
#define TRIGGER_TL4 30904
#define TRIGGER_OB_POS (int)(0x10000000)
#define TRIGGER_LE_POS (int)(0x20000000)
#define TRIGGER_OB_LEAVE (int)(0x08000000)

/* Era Triggers */
#define TRIGGER_BEFORE_SAVE_GAME 77000_DEPRECATED
#define TRIGGER_SAVEGAME_WRITE 77001
#define TRIGGER_SAVEGAME_READ 77002
#define TRIGGER_KEYPRESS 77003
#define TRIGGER_OPEN_HEROSCREEN 77004
#define TRIGGER_CLOSE_HEROSCREEN 77005
#define TRIGGER_STACK_OBTAINS_TURN 77006
#define TRIGGER_REGENERATE_PHASE 77007
#define TRIGGER_AFTER_SAVE_GAME 77008
#define TRIGGER_SKEY_SAVEDIALOG 77009_DEPRECATED
#define TRIGGER_HEROESMEET 77010_DEPRECATED
#define TRIGGER_BEFOREHEROINTERACT 77010
#define TRIGGER_AFTERHEROINTERACT 77011

typedef NOALIGN struct TTxtFile
{
    char Dummy[0x18];
    int RefCount;
    /* Dummy */
} TTxtFile, *PTxtFile;

typedef NOALIGN struct THookHandlerArgs
{
    int EDI, ESI, EBP, ESP, EBX, EDX, ECX, EAX;
    int RetAddr;
} THookHandlerArgs, *PHookHandlerArgs;

typedef NOALIGN struct TEvent
{
    char* Name;
    void* Data;
    int DataSize;
} TEvent, *PEvent;

typedef int TEventParams[16];
typedef TEventParams* PEventParams;
typedef void (__stdcall *TEventHandler) (PEvent Event);

typedef char TErmZVar[512];


/* WoG vars */
int* ErmV = (int*) 0x887664; // 1..10000
TErmZVar* ErmZ = (TErmZVar*) 0x9271E8; // 1..1000
int* ErmY = (int*) 0xA48D7C; // 1..100
int* ErmX = (int*) 0x91DA34; // 1..16
bool* ErmF = (bool*) 0x91F2DF; // 1..1000
float* ErmE = (float*) 0xA48F14; // 1..100

typedef struct TGameState
{
    int RootDlgId;
    int CurrentDlgId;
} TGameState, *PGameState;


typedef void (__stdcall *TWriteAtCode) (int Count, void* Src, void* Dst);
typedef void (__stdcall *THook) (void* HandlerAddr, int HookType, int PatchSize, void* CodeAddr);
typedef void (__stdcall *TKillThisProcess) ();
typedef void (__stdcall *TFatalError) (char* Err);
typedef void (__stdcall *TRegisterHandler) (TEventHandler Handler, char* EventName);
typedef void (__stdcall *TFireEvent) (char* EventName, void* EventData, int DataSize);
typedef PTxtFile (__stdcall *TLoadTxt) (char* Name);
typedef void (__stdcall *TForceTxtUnload) (char* Name);
typedef void (__stdcall *TExecErmCmd) (char* CmdStr);
typedef void (__stdcall *TReloadErm) ();
typedef void (__stdcall *TExtractErm) ();
typedef void (__stdcall *TFireErmEvent) (int EventID);
typedef void (__stdcall *TClearIniCache) ();
typedef bool (__stdcall *TReadStrFromIni) (char* Key, char* SectionName, char* FilePath, char* Res);
typedef bool (__stdcall *TWriteStrToIni) (char* Key, char* Value, char* SectionName, char* FilePath);
typedef void (__stdcall *TNameColor) (int Color32, char* Name);
typedef void (__stdcall *TWriteSavegameSection) (int DataSize, void* Data, char* SectionName);
typedef int (__stdcall *TReadSavegameSection) (int DataSize, void* Data, char* SectionName);
typedef void (__stdcall *TGetGameState) (PGameState GameState);
typedef void (__stdcall *TSaveEventParams) ();
typedef void (__stdcall *TRestoreEventParams) ();


int* EventParams = NULL;


TWriteAtCode WriteAtCode = NULL;
THook Hook = NULL;
TKillThisProcess KillThisProcess = NULL;
TFatalError FatalError = NULL;
TRegisterHandler RegisterHandler = NULL;
TFireEvent FireEvent = NULL;
TLoadTxt LoadTxt = NULL;
TForceTxtUnload ForceTxtUnload = NULL;
TExecErmCmd ExecErmCmd = NULL;
TReloadErm ReloadErm = NULL;
TExtractErm ExtractErm = NULL;
TFireErmEvent FireErmEvent = NULL;
TClearIniCache ClearIniCache = NULL;
TReadStrFromIni ReadStrFromIni = NULL;
TWriteStrToIni WriteStrToIni = NULL;
TNameColor NameColor = NULL;
TWriteSavegameSection WriteSavegameSection = NULL;
TReadSavegameSection ReadSavegameSection = NULL;
TSaveEventParams SaveEventParams = NULL;
TRestoreEventParams RestoreEventParams = NULL;


HINSTANCE hEra;
HINSTANCE hAngel;


void ConnectEra ()
{
    hAngel = LoadLibrary(TEXT("angel.dll"));
    EventParams = (int*) GetProcAddress(hAngel, "EventParams");
    SaveEventParams = (TSaveEventParams) GetProcAddress(hAngel, "SaveEventParams");
    RestoreEventParams = (TRestoreEventParams)GetProcAddress(hAngel, "RestoreEventParams");
    /***/
    hEra = (HINSTANCE) ErmV[1];
    WriteAtCode = (TWriteAtCode) GetProcAddress(hEra, "WriteAtCode");
    Hook = (THook) GetProcAddress(hEra, "Hook");
    KillThisProcess = (TKillThisProcess) GetProcAddress(hEra, "KillThisProcess");
    FatalError = (TFatalError) GetProcAddress(hEra, "FatalError");
    RegisterHandler = (TRegisterHandler) GetProcAddress(hEra, "RegisterHandler");
    FireEvent = (TFireEvent) GetProcAddress(hEra, "FireEvent");
    LoadTxt = (TLoadTxt) GetProcAddress(hEra, "LoadTxt");
    ForceTxtUnload = (TForceTxtUnload) GetProcAddress(hEra, "ForceTxtUnload");
    ExecErmCmd = (TExecErmCmd) GetProcAddress(hEra, "ExecErmCmd");
    ReloadErm = (TReloadErm) GetProcAddress(hEra, "ReloadErm");
    ExtractErm = (TExtractErm) GetProcAddress(hEra, "ExtractErm");
    FireErmEvent = (TFireErmEvent) GetProcAddress(hEra, "FireErmEvent");
    ClearIniCache = (TClearIniCache) GetProcAddress(hEra, "ClearIniCache");
    ReadStrFromIni = (TReadStrFromIni) GetProcAddress(hEra, "ReadStrFromIni");
    WriteStrToIni = (TWriteStrToIni) GetProcAddress(hEra, "WriteStrToIni");
    NameColor = (TNameColor) GetProcAddress(hEra, "NameColor");
    WriteSavegameSection = (TWriteSavegameSection) GetProcAddress(hEra, "WriteSavegameSection");
    ReadSavegameSection = (TReadSavegameSection) GetProcAddress(hEra, "ReadSavegameSection");
}

#endif