///////////////////////////////////////////////////////////////////// // ID空间 const OBJID SCENEID_FIRST = 000001; // SCENE的第一个ID const OBJID SYSNPCID_FIRST = 00001; // SYSNPC的第一个ID const OBJID SYSNPCID_LAST = 99999; // SYSNPC的最后一个ID const OBJID DYNANPCID_FIRST = 100001; // DYNANPC的第一个ID const OBJID DYNANPCID_LAST = 199999; // DYNANPC的最后一个ID const OBJID SCENEID_LAST = 299999; // SCENE的最后一个ID const OBJID NPCSERVERID_FIRST = 400001; // NPC的第一个ID const OBJID MONSTERID_FIRST = 400001; // MONSTER的第一个ID const OBJID MONSTERID_LAST = 499999; // MONSTER的最后一个ID const OBJID PETID_FIRST = 500001; // PET的第一个ID const OBJID PETID_LAST = 599999; // PET的最后一个ID const OBJID NPCSERVERID_LAST = 899999; // NPC的最后一个ID const OBJID TRAPID_FIRST = 900001; // 魔法陷阱的第一个ID const OBJID MAGICTRAPID_FIRST = 900001; // 玩家魔法的第一个ID const OBJID MAGICTRAPID_LAST = 989999; // 玩家魔法的最后一个ID const OBJID SYSTRAPID_FIRST = 990001; // 系统陷阱的第一个ID const OBJID SYSTRAPID_LAST = 999999; // 系统陷阱的最后一个ID const OBJID TRAPID_LAST = 999999; // 魔法陷阱的最后一个ID const OBJID PLAYER_ID_FIRST = 1000000; // Player的第一个ID const OBJID PLAYER_ID_LAST = 1999999999; // Player的最后一个ID const OBJID CALLPETID_FIRST = 2000000000; // CALLPET的第一个ID const OBJID CALLPETID_LAST = 3999999999; // CALLPET的最后一个ID const OBJID CLIENT_ID_FIRST = 4000000000; // 为客户端保留的ID空间 const OBJID MOUSE_PLAYER_ID = 4000000001; // 放NPC时在鼠标上显示 const OBJID _IDMAX_NPC =999999;
Didn't know about these ids, that's kinda usefulQuote:
Can be usefull if you don't want that the client think that your monsters are NPC... From Eudemon Online, but the same on CO2.
Code:const OBJID PETID_FIRST = 500001; // PET的第一个ID const OBJID PETID_LAST = 599999; // PET的最后一个ID const OBJID CALLPETID_FIRST = 2000000000; // CALLPET的第一个ID const OBJID CALLPETID_LAST = 3999999999; // CALLPET的最后一个ID
Are you decoding the magic attack information properly?Quote:
While i am storing char/mob spawn list, i did realize that mobs/guards' IDs are less than 999,999 while player IDs are more than 999,999. That is what helped me to build the 2 hashtables.
Anyways, my problem is that, when i look into the target UID in the action packet, Eg, thunder, The UID is a bit off as compared to the UID i have obtained through spawn packet.
Quote:
While i am storing char/mob spawn list, i did realize that mobs/guards' IDs are less than 999,999 while player IDs are more than 999,999. That is what helped me to build the 2 hashtables.
Anyways, my problem is that, when i look into the target UID in the action packet, Eg, thunder, The UID is a bit off as compared to the UID i have obtained through spawn packet.
As mentioned... skill usage is encrypted.Quote:
While i am storing char/mob spawn list, i did realize that mobs/guards' IDs are less than 999,999 while player IDs are more than 999,999. That is what helped me to build the 2 hashtables.
Anyways, my problem is that, when i look into the target UID in the action packet, Eg, thunder, The UID is a bit off as compared to the UID i have obtained through spawn packet.
#region Encrypting
Target += 0x746F4AE6;
Target ^= User.UID;
Target ^= 0x5F2D2463;
Target = ((Target << 13) | (Target >> 19));
ulong _X = X + 0xffff22ee;
_X -= 0xffff0000;
_X = ((_X << 15) | (_X >> 1));
_X ^= 0x2ed6;
_X ^= User.UID;
X = (ushort)_X;
ulong _Y = Y + 0xffff8922;
_Y -= 0xffff0000;
_Y = ((_Y << 11) | (_Y >> 5));
_Y ^= 0xb99b;
_Y ^= User.UID;
Y = (ushort)_Y;
ushort SkillId = S.ID;
SkillId += 0xeb42;
SkillId = (ushort)(SkillId << 13 | SkillId >> 0x3);
SkillId = (ushort)(SkillId ^ User.UID);
SkillId ^= 0x915d;
#endregion
public static class Action {
public int len, packetType, timer, charID, targetID, coordX, coordY, actionType, actionValue; //action value also known as skill ID
byte[] trailer;
byte[] pac; //the packet
public Action(byte[] p) {
pac = p;
len = Utility.getUShort(p, 0);
packetType = Utility.getUShort(p, 2);
timer = Utility.getInt(p, 4);
charID = Utility.getInt(p, 8);
targetID = Utility.getUShort(p, 12);
coordX = Utility.getUShort(p, 16);
coordY = Utility.getUShort(p, 18);
actionType = Utility.getInt(p, 20); //2=meelee, 24=skill/magic
if (actionType != 2) {
//decode skill id
short aValue = (short) (((long) p[24] & 0xFF) | (((long) p[25] & 0xFF) << 8));
aValue ^= (short) (0x915d & 0xffff);
aValue ^= (short) (charID & 0xffff);
aValue = (short) ((aValue << 0x3 | aValue >> 0xd) & 0xffff);
aValue -= 0xeb42;
actionValue = aValue;
targetID = decodeTarget(targetID, charID);
coordX = decodeXCord(coordX, charID);
coordY = decodeYCord(coordY, charID);
} else {
actionValue = Utility.getInt(p, 24);
}
trailer = new byte[p.length - 28];
System.arraycopy(p, 24, trailer, 0, p.length - 28);
}
@Override
public String toString() {
return "Packet Length :" + len + "\ntype :" + packetType + "\nTimer :" + timer + "\nChar ID :" + charID + "\nTarget ID :"
+ targetID + "\nCoordX :" + coordX + "\nCoordY :" + coordY + "\nAction Type :" + actionType + "\nAction Value :"
+ actionValue + "\n";
}
public static int decodeTarget(int target, int id){
//decode target id
target = ((target >> 13) | (target << 19));
target ^= 0x5F2D2463;
target ^= id;
target -= 0x746F4AE6;
return target;
}
public static int decodeXCord( int x, int id){
//decode X coordinate
long X = x;
X ^= (id & 0xffff);
X ^= 0x2ed6;
X = ((X << 1) | ((X & 0x8000) >> 15)) & 0xffff;
X |= 0xffff0000;
X -= 0xffff22ee;
return (int)X;
}
public static int decodeYCord(int y, int id){
//decode Y coordinate
long Y = y;
Y = Y ^ (id & 0xffff) ^ 0xb99b;
Y = ((Y << 5) | ((Y & 0xF800) >> 11)) & 0xffff;
Y |= 0xffff0000;
Y -= 0xffff8922;
return (int)Y;
}
public static int encodeTarget(int Target, int id){
Target += 0x746F4AE6;
Target ^= id;
Target ^= 0x5F2D2463;
Target = ((Target << 13) | (Target >> 19));
return Target;
}
public static int encodeXCord(int xcord, int id){
long _X = xcord + 0xffff22ee;
_X -= 0xffff0000;
_X = ((_X << 15) | (_X >> 1));
_X ^= 0x2ed6;
_X ^= id;
return (int)_X;
}
public static int encodeYCord(int ycord, int id){
long _Y = ycord + 0xffff8922;
_Y -= 0xffff0000;
_Y = ((_Y << 11) | (_Y >> 5));
_Y ^= 0xb99b;
_Y ^= id;
return (int)_Y;
}
public static int encodeSkill(int skill, int id){
short SkillId = (short) (skill & 0xffff);
SkillId += 0xeb42;
SkillId = (short)(SkillId << 13 | SkillId >> 0x3);
SkillId = (short)(SkillId ^ id);
SkillId ^= 0x915d;
return SkillId;
}
public static byte[] buildSkillPacket(int timer, int id, int targetid, int xcord, int ycord, int actionValue){
byte[] packet = new byte[36];
System.arraycopy(Utility.Int16ToBytes(28), 0, packet, 0, 2);
System.arraycopy(Utility.Int16ToBytes(1022), 0, packet, 2, 2);
System.arraycopy(Utility.Int32ToBytes(timer), 0, packet, 4, 4);
System.arraycopy(Utility.Int32ToBytes(id), 0, packet, 8, 4);
System.arraycopy(Utility.Int32ToBytes(targetid), 0, packet, 12, 4);
System.arraycopy(Utility.Int16ToBytes(xcord), 0, packet, 16, 2);
System.arraycopy(Utility.Int16ToBytes(ycord), 0, packet, 18, 2);
System.arraycopy(Utility.Int32ToBytes(24), 0, packet, 20, 4);
//encode actionValue
short skill = (short) actionValue;
skill += 0xeb42;
skill = (short)(skill << 13 | skill >> 0x3);
skill = (short)(skill ^ (id & 0xffff));
skill ^= 0x915d;
System.arraycopy(Utility.Int32ToBytes(skill), 0, packet, 24, 4);
System.arraycopy("TQClient".getBytes(), 0, packet, 28, 8);
return packet;
}
}
Targets are 4 byte uints, not 2 byte ushorts.Quote:
As for the hashtable part, that is a unsynchronised java direct access collection that do not give me too many exceptions, lol. I picked that only for simplicity's sake.
Anyways, i'll revisit my codes after i am done with my exam later. lol
EDIT:
i guess i'll stick this on before i leave; I do not think there is a problem with the decoding with skill at least. I am getting all the correct values for skills used.
@nTL3fTy: i believe i am decoding them properly.
@Ian : yes, i did realize that and had handled it
Code:public static class Action { public int len, packetType, timer, charID, targetID, coordX, coordY, actionType, actionValue; //action value also known as skill ID byte[] trailer; byte[] pac; //the packet public Action(byte[] p) { pac = p; len = Utility.getUShort(p, 0); packetType = Utility.getUShort(p, 2); timer = Utility.getInt(p, 4); charID = Utility.getInt(p, 8); targetID = Utility.getUShort(p, 12); coordX = Utility.getUShort(p, 16); coordY = Utility.getUShort(p, 18); actionType = Utility.getInt(p, 20); //2=meelee, 24=skill/magic if (actionType != 2) { //decode skill id short aValue = (short) (((long) p[24] & 0xFF) | (((long) p[25] & 0xFF) << 8)); aValue ^= (short) (0x915d & 0xffff); aValue ^= (short) (charID & 0xffff); aValue = (short) ((aValue << 0x3 | aValue >> 0xd) & 0xffff); aValue -= 0xeb42; actionValue = aValue; targetID = decodeTarget(targetID, charID); coordX = decodeXCord(coordX, charID); coordY = decodeYCord(coordY, charID); } else { actionValue = Utility.getInt(p, 24); } trailer = new byte[p.length - 28]; System.arraycopy(p, 24, trailer, 0, p.length - 28); } @Override public String toString() { return "Packet Length :" + len + "\ntype :" + packetType + "\nTimer :" + timer + "\nChar ID :" + charID + "\nTarget ID :" + targetID + "\nCoordX :" + coordX + "\nCoordY :" + coordY + "\nAction Type :" + actionType + "\nAction Value :" + actionValue + "\n"; } public static int decodeTarget(int target, int id){ //decode target id target = ((target >> 13) | (target << 19)); target ^= 0x5F2D2463; target ^= id; target -= 0x746F4AE6; return target; } public static int decodeXCord( int x, int id){ //decode X coordinate long X = x; X ^= (id & 0xffff); X ^= 0x2ed6; X = ((X << 1) | ((X & 0x8000) >> 15)) & 0xffff; X |= 0xffff0000; X -= 0xffff22ee; return (int)X; } public static int decodeYCord(int y, int id){ //decode Y coordinate long Y = y; Y = Y ^ (id & 0xffff) ^ 0xb99b; Y = ((Y << 5) | ((Y & 0xF800) >> 11)) & 0xffff; Y |= 0xffff0000; Y -= 0xffff8922; return (int)Y; } public static int encodeTarget(int Target, int id){ Target += 0x746F4AE6; Target ^= id; Target ^= 0x5F2D2463; Target = ((Target << 13) | (Target >> 19)); return Target; } public static int encodeXCord(int xcord, int id){ long _X = xcord + 0xffff22ee; _X -= 0xffff0000; _X = ((_X << 15) | (_X >> 1)); _X ^= 0x2ed6; _X ^= id; return (int)_X; } public static int encodeYCord(int ycord, int id){ long _Y = ycord + 0xffff8922; _Y -= 0xffff0000; _Y = ((_Y << 11) | (_Y >> 5)); _Y ^= 0xb99b; _Y ^= id; return (int)_Y; } public static int encodeSkill(int skill, int id){ short SkillId = (short) (skill & 0xffff); SkillId += 0xeb42; SkillId = (short)(SkillId << 13 | SkillId >> 0x3); SkillId = (short)(SkillId ^ id); SkillId ^= 0x915d; return SkillId; } public static byte[] buildSkillPacket(int timer, int id, int targetid, int xcord, int ycord, int actionValue){ byte[] packet = new byte[36]; System.arraycopy(Utility.Int16ToBytes(28), 0, packet, 0, 2); System.arraycopy(Utility.Int16ToBytes(1022), 0, packet, 2, 2); System.arraycopy(Utility.Int32ToBytes(timer), 0, packet, 4, 4); System.arraycopy(Utility.Int32ToBytes(id), 0, packet, 8, 4); System.arraycopy(Utility.Int32ToBytes(targetid), 0, packet, 12, 4); System.arraycopy(Utility.Int16ToBytes(xcord), 0, packet, 16, 2); System.arraycopy(Utility.Int16ToBytes(ycord), 0, packet, 18, 2); System.arraycopy(Utility.Int32ToBytes(24), 0, packet, 20, 4); //encode actionValue short skill = (short) actionValue; skill += 0xeb42; skill = (short)(skill << 13 | skill >> 0x3); skill = (short)(skill ^ (id & 0xffff)); skill ^= 0x915d; System.arraycopy(Utility.Int32ToBytes(skill), 0, packet, 24, 4); System.arraycopy("TQClient".getBytes(), 0, packet, 28, 8); return packet; } }
ushort SkillId = Convert.ToUInt16(((long)Data[24] & 0xFF) | (((long)Data[25] & 0xFF) << 8));
SkillId ^= (ushort)0x915d;
SkillId ^= (ushort)Client.UID;
SkillId = (ushort)(SkillId << 0x3 | SkillId >> 0xd);
SkillId -= 0xeb42;
if (!Client.Skills.ContainsKey(SkillId))
return;
Target = ((Target >> 13) | (Target << 19));
Target ^= 0x5F2D2463;
Target ^= Client.UID;
Target -= 0x746F4AE6;
ushort TargetX = 0;
ushort TargetY = 0;
long xx = (Data[16] & 0xFF) | ((Data[17] & 0xFF) << 8);
long yy = (Data[18] & 0xFF) | ((Data[19] & 0xFF) << 8);
xx = xx ^ (Client.UID & 0xffff) ^ 0x2ed6;
xx = ((xx << 1) | ((xx & 0x8000) >> 15)) & 0xffff;
xx |= 0xffff0000;
xx -= 0xffff22ee;
yy = yy ^ (Client.UID & 0xffff) ^ 0xb99b;
yy = ((yy << 5) | ((yy & 0xF800) >> 11)) & 0xffff;
yy |= 0xffff0000;
yy -= 0xffff8922;
TargetX = Convert.ToUInt16(xx);
TargetY = Convert.ToUInt16(yy);
private uint ror32(uint value, int amount)
{
return ((value >> amount) | (value << (32 - amount)));
}
private uint rol32(uint value, int amount)
{
return ((value << amount) | (value >> (32 - amount)));
}
private ushort ror16(ushort value, int amount)
{
return (ushort)((value >> amount) | (value << (16 - amount)));
}
private ushort rol16(ushort value, int amount)
{
return (ushort)((value << amount) | (value >> (16 - amount)));
}
public void Decrypt(uint Seed)
{
uint uID = this.UID;
ushort x = this.X;
ushort y = this.Y;
ushort spellID = this.SpellID;
this.X = (ushort)(this.rol16((ushort)((x ^ 11990) ^ ((ushort)uID)), 1) - 8942);
this.Y = (ushort)(this.rol16((ushort)((y ^ 47515) ^ ((ushort)uID)), 5) - 35106);
this.SpellID = (ushort)(this.rol16((ushort)((spellID ^ 37213) ^ ((ushort)uID)), 3) - 60226);
OpponentUID = (uint)Assembler.RollRight(OpponentUID, 13, 32);
OpponentUID = (OpponentUID ^ 0x5F2D2463 ^ Seed) - 0x746F4AE6;
}
// Assembler Code
public class Assembler
{
public static int RollLeft(uint Value, byte Roll, byte Size)
{
Roll = (byte)(Roll & 0x1F);
return (int)((Value << Roll) | (Value >> (Size - Roll)));
}
public static int RollRight(uint Value, byte Roll, byte Size)
{
Roll = (byte)(Roll & 0x1F);
return (int)((Value << (Size - Roll)) | (Value >> Roll));
}
}
public static int decodeTarget(int target, int id){
//decode target id
target = ( (target >>> 13) | (target << 19)); //&0xffffffff ;
target ^= 0x5F2D2463;
target ^= (id & 0xffffffff);
target -= 0x746F4AE6;
return target;
}