as working on a project of mine, I decided to share with you some of my work, which I'm sure will be useful to people who deal with coding servers.
The main thing to do is to decompile methods in main.exe of that version. Decompilation will be to
The first method, you will get decompiled is that of Chaos Machine, where the client verifies that the items that are placed in the machine meet the requirements for combination. With this you can add custom combinations in Chaos Machine.
Code:
struct Item // Recovering Item struct
{
short itemType; //0x0
int itemLevel; //0x4
int itemTypeTemp; //??
BYTE itemDurability; //0x1A
int ItemTypePlus40; //0x28
};
signed int ChaosMachineGetCombinationType(unsigned int item, int argument2, int argument3)
{
int unknownGlobal = *(int*)0x056F3BBC;// 0x056F3BBC //val=1024 - might be static
int unknownGlobal2 = *(int*)0x0067196C; // 0x0067196C
int unknownGlobal3[] = { 5 }; //0x00671968
char unknownGlobal4 = *(char*)0x07CB2754; // 0x07CB2754
int unknownGlobal5 = *(int*)0x076E0C50; //0x076E0C50
int secondLvlWingsPercent = *(int*)0x07CB274C;// 0x07CB274C
int chaosCombinationType = *(int*)0x07CB2744; // 0x07CB2744
int allItemsCount;
int cnt = 0;
int v7;
int v11;
int v12;
unsigned __int8 v21;
signed int v22;
int v24;
BYTE v25;
//signed int ItemTypev27;
signed int result;
unsigned int additionalItemAddPercent = 0;
int onlyWingsAddPercent = 0;
char *v64;
int v65;
int chaosCount = 0;
int v68 = 0;
int devilEyeCount = 0;
int devilKeyCount = 0;
int isLvl9 = 0;
int isLvl10 = 0;
int isLvl11 = 0;
int isLvl12 = 0;
int blessCount = 0;
int soulCount = 0;
int unrilaCount = 0;
int v78 = 0;
int creationCount = 0;
int featherCount = 0;
int FirstLvlWingsCount = 0;
int additionalItems_count = 0;
int secondLvlWings_count = 0;
int chaosWeapon_Count = 0;
int scrollOfArchangelCount = 0;
int bloodBoneCount = 0;
int CapeOfLordCount = 0;
int guardianCount = 0;
int devilsKey_Level = 0;
int devilsEye_Level = 0;
int scrollOfArchangel_Level = 0;
int bloodBone_Level = 0;
int feather_Level = 0;
char *v96;
void* v97;
int v98;
scrollOfArchangel_Level = 0;
additionalItemAddPercent = 0;
bloodBone_Level = 0;
onlyWingsAddPercent = 0;
feather_Level = 0;
*(int*)0x0067196C = 1; //unknounGlobal2
unknownGlobal3[0] = 1; //unknounGlobal3[0]
Item cmItem;
if (argument3 <= 0)
{
allItemsCount = 0;
}
else
{
allItemsCount = 0;
v97 = (LPVOID)argument3;
v7 = 72 * argument2;
v98 = 72 * argument2;
do
{
if ( argument2 > 0 )
{
v65 = argument2;
int i = 0;
do
{
if ( *(WORD *)item!= -1 )
{
cmItem.ItemTypePlus40 = item + 40;
if ( *(DWORD *)(item + 60) > 0 )
{
v96 = 0;
argument3 = 0;
allItemsCount++;
v64 = &unknownGlobal4;
v11 = unknownGlobal5 + 76 * *(WORD *)item;
if ( unknownGlobal3[0] <= *(BYTE *)(v11 + 34) ) //unknownGlobal3
{
*(int*)0x00671968 = *(BYTE *)(v11 + 34); //unknownGlobal3
unknownGlobal3[0] = *(BYTE *)(v11 + 34);
}
v12 = *(BYTE *)(v11 + 35);
if ( unknownGlobal2 <= v12 )
*(int*)0x0067196C = v12; //unknownGlobal2
cmItem.itemType = *(WORD *)item;
cmItem.itemLevel = (*(DWORD *)(item + 4) >> 3) & 0xF; //mask to get the 3rd byte, where the level is stored
cmItem.itemDurability = *(BYTE *)(item + 26);
if (cmItem.itemType < 384 || cmItem.itemType <= 390 || cmItem.itemType == 446 ) //ITEMGET(12,0) - Wings of Elf , ITEMGET(12,6) - Wings of Darkness , ITEMGET(13,30) - Cape of Lord
{
switch ( cmItem.itemLevel )
{
case 9:
++isLvl9;
*(char*)0x07CB2754 = 0; //unknownGlobal4
argument3 = 1;
v96 = &unknownGlobal4;
break;
case 10:
++isLvl10;
*(char*)0x07CB2754 = 0; //unknownGlobal4
argument3 = 1;
v96 = &unknownGlobal4;
break;
case 11:
++isLvl11;
*(char*)0x07CB2754 = 0; //unknownGlobal4
argument3 = 1;
v96 = &unknownGlobal4;
break;
case 12:
++isLvl12;
*(char*)0x07CB2754 = 0; //unknownGlobal4
argument3 = 1;
v96 = &unknownGlobal4;
break;
default:
break;
}
}
switch (cmItem.itemType)
{
case 465: //ITEMGET(14,17) - Devil's Eye
devilsKey_Level = cmItem.itemLevel;
++devilEyeCount;
break;
case 466: //ITEMGET(14,18) - Devil's Key
devilsEye_Level = cmItem.itemLevel;
++devilKeyCount;
break;
case 432: //ITEMGET(13,16) - Scroll of Archangel
scrollOfArchangel_Level = cmItem.itemLevel;
++scrollOfArchangelCount;
break;
case 433: //ITEMGET(13,17) - Blood Bone
bloodBone_Level = cmItem.itemLevel;
++bloodBoneCount;
break;
case 461: //ITEMGET(14,13) - Jewel of Bless
++blessCount;
break;
case 462: //ITEMGET(14,14) - Jewel of Soul
++soulCount;
break;
case 470: //ITEMGET(14,22) - Jewel of Creation
++creationCount;
break;
case 479: //ITEMGET(14,31) - Jewel of Guardian
++guardianCount;
break;
case 430: //ITEMGET(13,14) - Loch's Feather
feather_Level = cmItem.itemLevel;
++featherCount;
break;
case 384: //ITEMGET(12,0) - Wings of Elf
case 385: //ITEMGET(12,1) - Wings of Heaven
case 386: //ITEMGET(12,2) - Wings of Satan
v64 = (char *)&argument3 + 3;
*(int*)0x07CB2748 = 0; //unknownGlobal6
++FirstLvlWingsCount;
onlyWingsAddPercent = CalcItemAdditionalPercentAdd((signed int)((char *)&argument3 + 3), item, 0);
cnt = 0;
while ( cnt < *(BYTE *)cmItem.ItemTypePlus40 )
{
v21 = *(BYTE *)(cmItem.ItemTypePlus40 + cnt + 1);
if ( v21 >= 80 && (v21 <= 81 || v21 == 85) )
{
//if ( v21 <= 81 )
//{
*(int*)0x07CB2748 = *(BYTE *)(item + cnt + 49); //unknownGlobal6
//}
//else if ( v21 == 85 )
//{
// *(int*)0x07CB2748 = 4 * *(BYTE *)(item + cnt + 49); //unknownGlobal6
//}
}
++cnt;
}
if ( *(BYTE *)cmItem.ItemTypePlus40 )
{
int j = 0;
while ( j < *(BYTE *)cmItem.ItemTypePlus40 )
{
if ( *(BYTE *)(item + j + 41) == 84 )
{
char* cp = v96;
i = v96 == 0; // if(v96==0) i=1;
*v64 = 1;
if ( !i )
*cp = 1;
}
++j;
}
}
break;
case 418: //ITEMGET(13,2) - Horn of Uniria
if ( cmItem.itemDurability >= 255 )
++unrilaCount;
break;
case 399: //ITEMGET(12,15) - Jewel of Chaos
++chaosCount;
break;
case 446: //ITEMGET(13,30) - Cape of Lord
++CapeOfLordCount;
break;
default:
v22 = 0;
int j = 0;
if ( cmItem.itemType >= 384 || cmItem.itemLevel < 4 ) //ITEMGET(12,0) - Wings of Elf
{
if ( v24 <= 0 )
{
++v78;
BYTE test = *(BYTE *)(item + 27) & 0x3F;
if ( *(BYTE *)(item + 27) & 0x3F && cmItem.itemLevel >= 4 )
{
if (cmItem.itemType < 387 || cmItem.itemType > 390 ) //ITEMGET(12,3) - Wings of Spirits < > ITEMGET(12,6) - Wings of Darkness
{
++additionalItems_count;
additionalItemAddPercent += CalcItemAdditionalPercentAdd(LOWORD(cmItem.itemType), item, 0);
}
else
{
++secondLvlWings_count;
}
}
}
}
else
{
*(char*)0x07CB2754 = 0; //unknownGlobal4
j = 0;
v24 = *(BYTE *)cmItem.ItemTypePlus40;
argument3 = 1;
do
{
v25 = *(BYTE *)(cmItem.ItemTypePlus40 + j + 1);
if ( v25 >= 80 && v25 <= 83 && !v22 )
{
++v68; // common with chaos weapon count
if (cmItem.itemType == 70 || cmItem.itemType == 134 || cmItem.itemType == 167 ) //ITEMGET(2,6) - Chaos Dragon Axe, ITEMGET(4,6) - Chaos Nature Bow, ITEMGET(5,7) - Chaos Lightning Staff
++chaosWeapon_Count;
v22 = 1;
}
++j;
}
while ( j < v24 );
if ( !v22 )
{
++v78;
}
BYTE asd = *(BYTE *)(item + 27) & 0x3F;
if ( *(BYTE *)(item + 27) & 0x3F && cmItem.itemLevel >= 4 )
{
if ( cmItem.itemType < 387 || cmItem.itemType > 390 ) //ITEMGET(12,3) - Wings of Spirits < > ITEMGET(12,6) - Wings of Darkness
{
++additionalItems_count;
additionalItemAddPercent += CalcItemAdditionalPercentAdd(LOWORD(cmItem.itemType), item, 0);
}
else
{
++secondLvlWings_count;
}
}
}
break;
}
if ( argument3 )
{
int j = 0;
if ( *(BYTE *)cmItem.ItemTypePlus40 )
{
do
{
if ( *(BYTE *)(item + j + 41) == 84 )
{
char* cp = v96;
i = v96 == 0;
*v64 = 1;
if ( !i )
*cp = 1;
}
++j;
}
while ( j < *(BYTE *)cmItem.ItemTypePlus40 );
}
}
}
}
i = v65 == 1;
item += 72;
--v65;
}
while ( !i );
v7 = v98;
}
v97 = (char *)v97 - 1;
}
while ( v97 );
}
//Devil Square Ticket and Invisible Cloak Combinations
if ( allItemsCount == 3 && chaosCount == 1 )
{
if ( devilEyeCount == 1 && devilKeyCount == 1 ) //Check for Devil Square Ticket
{
if (devilsKey_Level == devilsEye_Level)
{
result = 2;
*(int*)0x07CB2744 = devilsKey_Level + 1; //set chaosCombinationType
}
else
{
result = -2;
}
return result;
}
if ( scrollOfArchangelCount == 1 && bloodBoneCount == 1 ) //Check for Blood Castle Ticket
{
if (scrollOfArchangel_Level == bloodBone_Level )
{
result = 8;
*(int*)0x07CB2744 = HIWORD(scrollOfArchangel_Level) + 1; //set chaosCombinationType
}
else
{
result = -8;
}
return result;
}
}
//First Level Combination
if ( FirstLvlWingsCount != 1 || secondLvlWings_count || featherCount != 1 || feather_Level != 1 )
{
if ( chaosCount == 1 && featherCount == 1 && !HIWORD(feather_Level) && FirstLvlWingsCount == 1 && !secondLvlWings_count && allItemsCount == additionalItems_count + 3 )
{
*(int*)0x07CB274C = onlyWingsAddPercent / 4000000 + additionalItemAddPercent / 40000; // secondLvlWingsPercent - calculating 2 lvl wings percent for probability
if ( (signed int)(onlyWingsAddPercent / 4000000 + additionalItemAddPercent / 40000) >= 90 )
{
*(int*)0x07CB274C = 90; // max percent 90%
}
return 7;
}
}
if (allItemsCount == 0 )
{
return 0;
}
else if(allItemsCount == 4)
{
if ( isLvl9 == 1 && blessCount == 1 && soulCount == 1 && chaosCount == 1)
{
return 3;
}
}
else if ( allItemsCount == 6 )
{
if ( isLvl10 == 1 && blessCount == 2 && soulCount == 2 && chaosCount == 1) // +11 combination
{
return 4;
}
}
else if ( allItemsCount == 8 )
{
if ( isLvl11 == 1 && blessCount == 3 && soulCount == 3 && chaosCount == 1) // +12 combination
{
return 22;
}
}
else if ( allItemsCount == 10 )
{
if ( isLvl12 == 1 && blessCount == 4 && soulCount == 4 && chaosCount == 1) // +13 combination
{
return 23;
}
}
else if ( allItemsCount == 11 )
{
if ( unrilaCount == 10 && chaosCount == 1 )
{
return 5;
}
}
if ( chaosCount == 1 )
{
if ( v68 > 0 && !devilEyeCount && !devilKeyCount && !unrilaCount && !v78 && !creationCount && !featherCount && !FirstLvlWingsCount && !secondLvlWings_count && !scrollOfArchangelCount && !bloodBoneCount && !guardianCount )
{
return chaosWeapon_Count <= 0 ? 1 : 11;
}
else if ( allItemsCount == 2 && creationCount == 1 && chaosCount == 1 ) // Fruits Combination
{
return 6;
}
}
if ( allItemsCount == blessCount ) // Potion of Bless
{
return 15;
}
if ( allItemsCount == soulCount ) // Potion of Soul
{
return 16;
}
if ( allItemsCount != 12 || blessCount != 5 || soulCount != 5 || chaosCount != 1 || guardianCount != 1 )
{
return 0;
}
else
{
return 17;
}
}
static DWORD CalcItemAdditionalPercentAdd_Address = 0x0052DDE0;
__declspec(naked) int __stdcall CalcItemAdditionalPercentAdd(int a1, int a2, int a3)
{
__asm{
PUSH EBP
MOV EBP, ESP
PUSH a3
PUSH a2
PUSH EAX //a1
CALL CalcItemAdditionalPercentAdd_Address
MOV ESP,EBP;
POP EBP;
retn 12
}
}
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