public OProg(byte[] data, byte[] footer, int id, int type)
{
this.type = type;
this.data = data;
this.footer = footer;
this.id = id;
return;
u0 = BinHelper.read_U16LE(footer, 0);
exitsCnt = BinHelper.read_U16LE(footer, 2);
if (type == 1)
{
entry = exitsCnt;
exitsCnt = 0;
unpack();
return;
}
actorsCnt = BinHelper.read_U16LE(footer, 4);
u6 = BinHelper.read_U16LE(footer, 6);
exits = BinHelper.read_U16LE(footer, 8);
actors = BinHelper.read_U16LE(footer, 0x0A);
sprites = BinHelper.read_U16LE(footer, 0x0C);
entry = BinHelper.read_U16LE(footer, 0x0E);
if (u0 != 0 || u6 != exits)
{
throw new Exception("Unknown prog values");
}
unpack();
}
void process()
{
BinaryReader rd = new BinaryReader(new FileStream(filename, FileMode.Open, FileAccess.Read));
int len = rd.ReadUInt16();
rd.BaseStream.Position = 0;
data = rd.ReadBytes(len);
footer = rd.ReadBytes((int)(rd.BaseStream.Length - rd.BaseStream.Position));
rd.Close();
descramble(data, 2);
progcnt[0] = BinHelper.read_U16LE(footer, 0x06);
progcnt[1] = BinHelper.read_U16LE(footer, 0x08);
progmap = BinHelper.read_U16LE(footer, 0x0A);
actorsPart.count = BinHelper.read_U16LE(footer, 0x10);
actorsPart.ofs = BinHelper.read_U16LE(footer, 0x12);
entry = BinHelper.read_U16LE(footer, 0x42);
charmap = BinHelper.read_U16LE(footer, 0x48);
graphsPart.count = BinHelper.read_U16LE(footer, 0x20);
graphsPart.ofs = BinHelper.read_U16LE(footer, 0x22);
if (pref == "cer")
{
proc_cer();
}
parse();
}
void proc_cer()
{
musPart.count = BinHelper.read_U16LE(footer, 0x34);
musPart.ofs = BinHelper.read_U16LE(footer, 0x36);
int bid = 0;
strings.Add(new StringBlock(bid++, 0x72C9, 0x7353, data));
strings.Add(new StringBlock(bid++, 0xC100, 0xC26E, data));
strings.Add(new StringBlock(bid++, 0xC4DD, 0xD55C, data));
}
void unpack()
{
int spos = 2;
int slen = data.Length - spos;
if (type == 0)
{
List <UInt16> rms = new List <UInt16>();
UInt16 rm = 0;
while (rm != 0xFFFF)
{
rm = BinHelper.read_U16LE(data, spos);
spos += 2;
rms.Add(rm);
}
rooms = rms.ToArray();
slen = exits - spos;
if (actors - exits > 0)
{
exit_data = new byte[actors - exits];
Array.Copy(data, exits, exit_data, 0, exit_data.Length);
}
if (sprites - actors > 0)
{
actor_data = new byte[sprites - actors];
Array.Copy(data, actors, actor_data, 0, actor_data.Length);
}
if (entry - sprites > 0)
{
sprite_data = new byte[entry - sprites];
Array.Copy(data, sprites, sprite_data, 0, sprite_data.Length);
}
}
else
{
slen = entry - spos;
}
code = new byte[data.Length - entry];
Array.Copy(data, entry, code, 0, code.Length);
int enda = spos + slen;
int sid = 0;
while (spos < enda)
{
strings.Add(new OString(sid++, data, (UInt16)spos));
spos += strings[strings.Count - 1].length + 1;
}
}
public static string decompile(OProg prog, string eol)
{
foreach (OProg.OString s in prog.strings)
{
s.state = 0;
}
int pos = 0;
byte[] data = prog.code;
string res = "";
while (pos < data.Length)
{
byte op = data[pos++];
if (op >= Opcodes.OPCODE_SIZE)
{
throw new Exception(string.Format("Bad Opcode {0:X2} @ {1:X4}", op, pos));
}
foreach (Opcodes.opcode b in Opcodes.opcodes)
{
if (b.op == op)
{
string s = b.name + "(";
for (int i = 0; i < b.prms; i++)
{
byte ptp = data[pos++];
s += getParam(ptp, BinHelper.read_U16LE(data, pos), prog);
pos += 2;
if (i < b.prms - 1)
{
s += ",";
}
}
s += ")" + eol;
res += s;
break;
}
}
}
return(res);
}
public OString(int id, byte[] data, UInt16 ofs)
{
this.id = id;
this.ofs = ofs;
int len = 0;
byte b = 0;
string s = "";
while ((b = data[ofs + len]) != 0)
{
len++;
switch (b)
{
case RETURN:
s += "\\r";
break;
case SLASH:
s += "\\\\";
break;
case COUNT_SP_TERM:
s += "\\[t]";
break;
case STRING_MOVE:
UInt16 p1 = BinHelper.read_U16LE(data, ofs + len);
UInt16 p2 = BinHelper.read_U16LE(data, ofs + len + 2);
len += 4;
s += String.Format("\\[r{0:X4},{1:X4}]", p1, p2);
break;
case STRING_MENU_OPTION:
List <byte> nm = new List <byte>();
while (data[ofs + len] != 0)
{
nm.Add(data[ofs + len]);
len++;
}
UInt16 p4 = BinHelper.read_U16LE(data, ofs + len);
len += 2;
s += String.Format("\\[o{0:s},{1:X4}]", new String(Encoding.Unicode.GetChars(
Encoding.Convert(Encoding.GetEncoding(866), Encoding.Unicode, nm.ToArray())
)), p4);
break;
case COUNT_SP0:
s += "\\[n]";
break;
case COUNT_SP1:
s += "\\[s]";
break;
case CENTER:
s += "\\[m]";
break;
case WAIT:
s += "\\[w]";
break;
case SHARP:
s += "!";
break;
case ADVANCE:
s += String.Format("\\[c{0:X2}]", data[ofs + len]);
len++;
break;
case DEF_COLOUR:
s += "\\[d]";
break;
case SET_COLOUR:
s += String.Format("\\[c{0:X2}]", data[ofs + len]);
len++;
break;
case GLOBAL_WORD:
UInt16 p3 = BinHelper.read_U16LE(data, ofs + len);
len += 2;
s += String.Format("\\[g{0:X4}]", p3);
break;
default:
if (b < 0x20 || (b > 0xAF && (b < 0xE0 || b > 0xF1)))
{
s += String.Format("\\[x{0:X2}]", b);
}
else
{
s += new String(Encoding.Unicode.GetChars(
Encoding.Convert(Encoding.GetEncoding(866), Encoding.Unicode, new byte[] { b })
));
}
break;
}
}
this.data = s;
length = len;
}
