Thread: Megaten Online Client Modification

A little bit strange game, and as for me not so dynamic as e.g. Martial Empire or even Requiem. Nevertheless, you can use Ollydbg for disassembling this game. At this moment I don't know what can be done and what can we change/modify, because I've played only 30 min. But multiclient is piece of cake.

P.S. This game uses GameBryo Element engine like Requiem.

-- Added --

Remove camera distance limitation

 005309CE  |>  D81D 28973701 FCOMP DWORD PTR DS:[1379728]             ; FLOAT 500.0000

005309D4  |.  DFE0          FSTSW AX

005309D6  |.  F6C4 41       TEST AH,41

#### 005309D9  |.  75 0A         JNE SHORT 005309E5

005309DB  |.  C786 BC000000 MOV DWORD PTR DS],43FA0000

->

005309D6  |.  F6C4 41       TEST AH,41

#### 005309D9      EB 0A         JMP SHORT 005309E5

005309DB  |.  C786 BC000000 MOV DWORD PTR DS:[ESI+0BC],43FA0000 

Multi client:

00435FE7      85C0          TEST EAX,EAX

00435FE9      8986 88010000 MOV DWORD PTR DS],EAX

#### 00435FEF      74 3B         JE SHORT 0043602C

00435FF1      8B3D 1C955401 MOV EDI,DWORD PTR DS:[<&KERNEL32.GetLastError>]

00435FF7      FFD7          CALL EDI

00435FF9      3D B7000000   CMP EAX,0B7

#### 00435FFE      74 2C         JE SHORT 0043602C

00436000      8B86 88010000 MOV EAX,DWORD PTR DS]

00436006      85C0          TEST EAX,EAX

00436008      C686 8C010000 MOV BYTE PTR DS:[ESI+18C],1

#### 0043600F      74 09         JE SHORT 0043601A

00436011      FFD7          CALL EDI

00436013      3D B7000000   CMP EAX,0B7

#### 00436018      75 07         JNE SHORT 00436021

->

00435FE7  |.  85C0          TEST EAX,EAX

00435FE9  |.  8986 88010000 MOV DWORD PTR DS],EAX

00435FEF      90            NOP

00435FF0      90            NOP

00435FF1  |.  8B3D 1C955401 MOV EDI,DWORD PTR DS:[<&KERNEL32.GetLastError>]

00435FF7  |.  FFD7          CALL EDI

00435FF9  |.  3D B7000000   CMP EAX,0B7

00435FFE      90            NOP

00435FFF      90            NOP

00436000  |.  8B86 88010000 MOV EAX,DWORD PTR DS]

00436006  |.  85C0          TEST EAX,EAX

00436008  |.  C686 8C010000 MOV BYTE PTR DS:[ESI+18C],1

0043600F      90            NOP

00436010      90            NOP

00436011  |.  FFD7          CALL EDI

00436013  |.  3D B7000000   CMP EAX,0B7

00436018      EB 07         JMP SHORT 00436021

We can play with packets:

Code:

 inc str
00 00 00 20 00 00 00 1B 5F 3D 4F 04 51 E3 B0 2A C0 82 0B 31 99 8E 9A 6A 92 67 64 5D CC B9 8D 96 16 35 89 FF AB 2E 93 24 

devide item from 15 inventory cell
00 00 00 28 00 00 00 24 36 DD 69 B7 CD 5C F4 F7 F9 F7 21 61 63 14 83 21 4C 5A 72 D1 FC 5D E4 8A E9 33 D9 3E 0C 5C 16 E1 3F 84 2A 38 0F 5F 15 62 

move item from 22->21
00 00 00 28 00 00 00 24 36 DD 69 B7 CD 5C F4 F7 F9 F7 21 61 63 14 83 21 4C 5A 72 D1 FC 5D E4 8A 98 D9 D1 08 7C A1 6B 18 F3 4E 93 3B 8F 55 52 78 

move item from 14->22
00 00 00 28 00 00 00 24 36 DD 69 B7 CD 5C F4 F7 F9 F7 21 61 63 14 83 21 4C 5A 72 D1 FC 5D E4 8A 61 02 8C 31 46 69 B0 58 1B E1 48 B2 75 EF 2A 74 

use skill 2
00 00 00 28 00 00 00 22 D0 49 15 35 5C 98 56 BA E5 7D 68 FF E0 D3 A3 BA 48 31 ED 2D 23 C5 58 7B 30 F1 64 59 1D C2 51 83 F2 2F B6 BF 34 09 1C 13 

skill 1
00 00 00 28 00 00 00 26 D3 A1 0E 26 E7 90 7D 0D 46 9A 0E 6A F2 18 9F 11 67 D2 0A 8F 82 66 0A 17 60 F8 FC B1 FC A0 89 73 B8 A7 9F 6B D6 3E 0A 7E 
00 00 00 28 00 00 00 26 D3 A1 0E 26 E7 90 7D 0D 46 9A 0E 6A F2 18 9F 11 67 D2 0A 8F 82 66 0A 17 60 F8 FC B1 FC A0 89 73 38 3B 44 96 8C C8 72 9C 

skill 5
00 00 00 28 00 00 00 22 D0 49 15 35 5C 98 56 BA E5 7D 68 FF E0 D3 A3 BA 48 31 ED 2D 23 C5 58 7B FE C5 03 FD 9C 45 3E C1 F2 2F B6 BF 34 09 1C 13

smbk1210
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