| 1 | {$INCLUDE switches}
|
|---|
| 2 | unit CmdList;
|
|---|
| 3 |
|
|---|
| 4 | interface
|
|---|
| 5 |
|
|---|
| 6 | uses
|
|---|
| 7 | Classes;
|
|---|
| 8 |
|
|---|
| 9 | const
|
|---|
| 10 | MaxDataSize = 1024;
|
|---|
| 11 |
|
|---|
| 12 | type
|
|---|
| 13 | TLogData = array [0 .. 999999999] of Byte;
|
|---|
| 14 |
|
|---|
| 15 | TCmdListState = record
|
|---|
| 16 | nLog, { used size of LogData in bytes }
|
|---|
| 17 | LoadPos, { position in LogData when loading a game }
|
|---|
| 18 | LastMovingUnit: integer;
|
|---|
| 19 | MoveCode, LoadMoveCode: Cardinal;
|
|---|
| 20 | end;
|
|---|
| 21 |
|
|---|
| 22 | TCmdList = class
|
|---|
| 23 | constructor Create;
|
|---|
| 24 | destructor Destroy; override;
|
|---|
| 25 | procedure Get(var Command, Player, Subject: integer; var Data: pointer);
|
|---|
| 26 | procedure GetDataChanges(Data: pointer; DataSize: integer);
|
|---|
| 27 | procedure Put(Command, Player, Subject: integer; Data: pointer);
|
|---|
| 28 | procedure PutDataChanges(Command, Player: integer;
|
|---|
| 29 | OldData, NewData: pointer; DataSize: integer);
|
|---|
| 30 | procedure LoadFromFile(const f: TFileStream);
|
|---|
| 31 | procedure SaveToFile(const f: TFileStream);
|
|---|
| 32 | procedure AppendToFile(const f: TFileStream; const OldState: TCmdListState);
|
|---|
| 33 | procedure Cut;
|
|---|
| 34 | function Progress: integer;
|
|---|
| 35 | private
|
|---|
| 36 | LogAlloc: integer; { allocated size of LogData in bytes }
|
|---|
| 37 | LogData: ^TLogData;
|
|---|
| 38 | FState: TCmdListState;
|
|---|
| 39 | procedure PutData(Data: pointer; Length: integer);
|
|---|
| 40 | procedure CompleteMoveCode;
|
|---|
| 41 | public
|
|---|
| 42 | property State: TCmdListState read FState write FState;
|
|---|
| 43 | end;
|
|---|
| 44 |
|
|---|
| 45 | implementation
|
|---|
| 46 |
|
|---|
| 47 | uses
|
|---|
| 48 | Protocol;
|
|---|
| 49 |
|
|---|
| 50 | const
|
|---|
| 51 | LogGrow = 1 shl 18;
|
|---|
| 52 |
|
|---|
| 53 | type
|
|---|
| 54 | TData = array [0 .. MaxDataSize - 1] of Cardinal;
|
|---|
| 55 | PData = ^TData;
|
|---|
| 56 |
|
|---|
| 57 | constructor TCmdList.Create;
|
|---|
| 58 | begin
|
|---|
| 59 | inherited Create;
|
|---|
| 60 | FState.nLog := 0;
|
|---|
| 61 | LogAlloc := 0;
|
|---|
| 62 | LogData := nil;
|
|---|
| 63 | FState.LastMovingUnit := -1;
|
|---|
| 64 | FState.MoveCode := 0;
|
|---|
| 65 | FState.LoadMoveCode := 0;
|
|---|
| 66 | end;
|
|---|
| 67 |
|
|---|
| 68 | destructor TCmdList.Destroy;
|
|---|
| 69 | begin
|
|---|
| 70 | ReallocMem(LogData, 0);
|
|---|
| 71 | inherited Destroy;
|
|---|
| 72 | end;
|
|---|
| 73 |
|
|---|
| 74 | procedure TCmdList.Get(var Command, Player, Subject: integer;
|
|---|
| 75 | var Data: pointer);
|
|---|
| 76 | var
|
|---|
| 77 | DirCode, code: Cardinal;
|
|---|
| 78 | begin
|
|---|
| 79 | if FState.LoadMoveCode > 0 then
|
|---|
| 80 | begin
|
|---|
| 81 | Player := -1;
|
|---|
| 82 | if FState.LoadMoveCode and 1 = 1 then
|
|---|
| 83 | begin // FM
|
|---|
| 84 | DirCode := FState.LoadMoveCode shr 1 and 7;
|
|---|
| 85 | Subject := FState.LastMovingUnit;
|
|---|
| 86 | FState.LoadMoveCode := FState.LoadMoveCode shr 4;
|
|---|
| 87 | end
|
|---|
| 88 | else
|
|---|
| 89 | begin // M
|
|---|
| 90 | DirCode := FState.LoadMoveCode shr 3 and 7;
|
|---|
| 91 | Subject := FState.LoadMoveCode shr 6 and $FFF;
|
|---|
| 92 | FState.LoadMoveCode := FState.LoadMoveCode shr 18;
|
|---|
| 93 | FState.LastMovingUnit := Subject
|
|---|
| 94 | end;
|
|---|
| 95 | case DirCode of
|
|---|
| 96 | 0:
|
|---|
| 97 | Command := sMoveUnit + $090;
|
|---|
| 98 | 1:
|
|---|
| 99 | Command := sMoveUnit + $0F0;
|
|---|
| 100 | 2:
|
|---|
| 101 | Command := sMoveUnit + $390;
|
|---|
| 102 | 3:
|
|---|
| 103 | Command := sMoveUnit + $3F0;
|
|---|
| 104 | 4:
|
|---|
| 105 | Command := sMoveUnit + $020;
|
|---|
| 106 | 5:
|
|---|
| 107 | Command := sMoveUnit + $060;
|
|---|
| 108 | 6:
|
|---|
| 109 | Command := sMoveUnit + $100;
|
|---|
| 110 | 7:
|
|---|
| 111 | Command := sMoveUnit + $300;
|
|---|
| 112 | end;
|
|---|
| 113 | Data := nil;
|
|---|
| 114 | end
|
|---|
| 115 | else
|
|---|
| 116 | begin
|
|---|
| 117 | code := Cardinal((@LogData[FState.LoadPos])^);
|
|---|
| 118 | if code and 3 = 0 then
|
|---|
| 119 | begin // non-clientex command
|
|---|
| 120 | Command := code shr 2 and $3FFF + sExecute;
|
|---|
| 121 | Player := code shr 16 and $F;
|
|---|
| 122 | Subject := code shr 20 and $FFF;
|
|---|
| 123 | inc(FState.LoadPos, 4);
|
|---|
| 124 | end
|
|---|
| 125 | else if code and 7 = 2 then
|
|---|
| 126 | begin // clientex command
|
|---|
| 127 | Command := code shr 3 and $FFFF;
|
|---|
| 128 | Player := code shr 19 and $F;
|
|---|
| 129 | Subject := 0;
|
|---|
| 130 | inc(FState.LoadPos, 3);
|
|---|
| 131 | end
|
|---|
| 132 | else
|
|---|
| 133 | begin // move command shortcut
|
|---|
| 134 | if (code and 1 = 1) and (code and (7 shl 4) <> 6 shl 4) then
|
|---|
| 135 | begin
|
|---|
| 136 | FState.LoadMoveCode := code and $FF;
|
|---|
| 137 | inc(FState.LoadPos)
|
|---|
| 138 | end
|
|---|
| 139 | else
|
|---|
| 140 | begin
|
|---|
| 141 | FState.LoadMoveCode := code and $FFFFFF;
|
|---|
| 142 | inc(FState.LoadPos, 3);
|
|---|
| 143 | end;
|
|---|
| 144 | Get(Command, Player, Subject, Data);
|
|---|
| 145 | exit;
|
|---|
| 146 | end;
|
|---|
| 147 |
|
|---|
| 148 | if Command and $F = 0 then
|
|---|
| 149 | Data := nil
|
|---|
| 150 | else
|
|---|
| 151 | begin
|
|---|
| 152 | Data := @LogData[FState.LoadPos];
|
|---|
| 153 | inc(FState.LoadPos, Command and $F * 4);
|
|---|
| 154 | end
|
|---|
| 155 | end
|
|---|
| 156 | end;
|
|---|
| 157 |
|
|---|
| 158 | procedure TCmdList.GetDataChanges(Data: pointer; DataSize: integer);
|
|---|
| 159 | var
|
|---|
| 160 | b0, b1: integer;
|
|---|
| 161 | Map0, Map1: Cardinal;
|
|---|
| 162 | begin
|
|---|
| 163 | Map0 := Cardinal((@LogData[FState.LoadPos])^);
|
|---|
| 164 | inc(FState.LoadPos, 4);
|
|---|
| 165 | b0 := 0;
|
|---|
| 166 | while Map0 > 0 do
|
|---|
| 167 | begin
|
|---|
| 168 | if Map0 and 1 <> 0 then
|
|---|
| 169 | begin
|
|---|
| 170 | Map1 := Cardinal((@LogData[FState.LoadPos])^);
|
|---|
| 171 | inc(FState.LoadPos, 4);
|
|---|
| 172 | for b1 := 0 to 31 do
|
|---|
| 173 | if 1 shl b1 and Map1 <> 0 then
|
|---|
| 174 | begin
|
|---|
| 175 | if b0 * 32 + b1 < DataSize then
|
|---|
| 176 | PData(Data)[b0 * 32 + b1] := Cardinal((@LogData[FState.LoadPos])^);
|
|---|
| 177 | inc(FState.LoadPos, 4);
|
|---|
| 178 | end;
|
|---|
| 179 | end;
|
|---|
| 180 | inc(b0);
|
|---|
| 181 | Map0 := Map0 shr 1;
|
|---|
| 182 | end
|
|---|
| 183 | end;
|
|---|
| 184 |
|
|---|
| 185 | procedure TCmdList.Put(Command, Player, Subject: integer; Data: pointer);
|
|---|
| 186 | var
|
|---|
| 187 | DirCode, code: Cardinal;
|
|---|
| 188 | begin
|
|---|
| 189 | if Command and $FC00 = sMoveUnit then
|
|---|
| 190 | begin // move command shortcut
|
|---|
| 191 | case Command of
|
|---|
| 192 | sMoveUnit + $090:
|
|---|
| 193 | DirCode := 0;
|
|---|
| 194 | sMoveUnit + $0F0:
|
|---|
| 195 | DirCode := 1;
|
|---|
| 196 | sMoveUnit + $390:
|
|---|
| 197 | DirCode := 2;
|
|---|
| 198 | sMoveUnit + $3F0:
|
|---|
| 199 | DirCode := 3;
|
|---|
| 200 | sMoveUnit + $020:
|
|---|
| 201 | DirCode := 4;
|
|---|
| 202 | sMoveUnit + $060:
|
|---|
| 203 | DirCode := 5;
|
|---|
| 204 | sMoveUnit + $100:
|
|---|
| 205 | DirCode := 6;
|
|---|
| 206 | sMoveUnit + $300:
|
|---|
| 207 | DirCode := 7;
|
|---|
| 208 | end;
|
|---|
| 209 | if Subject = FState.LastMovingUnit then
|
|---|
| 210 | code := 1 + DirCode shl 1
|
|---|
| 211 | else
|
|---|
| 212 | code := 6 + DirCode shl 3 + Cardinal(Subject) shl 6;
|
|---|
| 213 | if FState.MoveCode = 0 then
|
|---|
| 214 | FState.MoveCode := code
|
|---|
| 215 | else if FState.MoveCode and 1 = 1 then
|
|---|
| 216 | begin // FM + this
|
|---|
| 217 | FState.MoveCode := FState.MoveCode + code shl 4;
|
|---|
| 218 | if code and 1 = 1 then
|
|---|
| 219 | PutData(@FState.MoveCode, 1) // FM + FM
|
|---|
| 220 | else
|
|---|
| 221 | PutData(@FState.MoveCode, 3); // FM + M
|
|---|
| 222 | FState.MoveCode := 0;
|
|---|
| 223 | end
|
|---|
| 224 | else if code and 1 = 1 then
|
|---|
| 225 | begin // M + FM
|
|---|
| 226 | FState.MoveCode := FState.MoveCode + code shl 18;
|
|---|
| 227 | PutData(@FState.MoveCode, 3);
|
|---|
| 228 | FState.MoveCode := 0;
|
|---|
| 229 | end
|
|---|
| 230 | else // M + M
|
|---|
| 231 | begin
|
|---|
| 232 | PutData(@FState.MoveCode, 3);
|
|---|
| 233 | FState.MoveCode := code
|
|---|
| 234 | end;
|
|---|
| 235 | FState.LastMovingUnit := Subject;
|
|---|
| 236 | end
|
|---|
| 237 | else
|
|---|
| 238 | begin
|
|---|
| 239 | CompleteMoveCode;
|
|---|
| 240 | if Command >= cClientEx then
|
|---|
| 241 | begin
|
|---|
| 242 | code := 2 + Command shl 3 + Player shl 19;
|
|---|
| 243 | PutData(@code, 3);
|
|---|
| 244 | end
|
|---|
| 245 | else
|
|---|
| 246 | begin
|
|---|
| 247 | code := Cardinal(Command - sExecute) shl 2 + Cardinal(Player) shl 16 +
|
|---|
| 248 | Cardinal(Subject) shl 20;
|
|---|
| 249 | PutData(@code, 4);
|
|---|
| 250 | end;
|
|---|
| 251 | end;
|
|---|
| 252 | if Command and $F <> 0 then
|
|---|
| 253 | PutData(Data, Command and $F * 4);
|
|---|
| 254 | end;
|
|---|
| 255 |
|
|---|
| 256 | procedure TCmdList.PutDataChanges(Command, Player: integer;
|
|---|
| 257 | OldData, NewData: pointer; DataSize: integer);
|
|---|
| 258 | var
|
|---|
| 259 | MapPos, LogPos, b0, b1, RowEnd: integer;
|
|---|
| 260 | Map0, Map1, code: Cardinal;
|
|---|
| 261 | begin
|
|---|
| 262 | if DataSize <= 0 then
|
|---|
| 263 | exit;
|
|---|
| 264 | if DataSize > MaxDataSize then
|
|---|
| 265 | DataSize := MaxDataSize;
|
|---|
| 266 | CompleteMoveCode;
|
|---|
| 267 | MapPos := FState.nLog + 8;
|
|---|
| 268 | LogPos := MapPos + 4;
|
|---|
| 269 | Map0 := 0;
|
|---|
| 270 | for b0 := 0 to (DataSize - 1) div 32 do
|
|---|
| 271 | begin
|
|---|
| 272 | if LogPos + 4 * 32 > LogAlloc then
|
|---|
| 273 | begin
|
|---|
| 274 | inc(LogAlloc, LogGrow);
|
|---|
| 275 | ReallocMem(LogData, LogAlloc);
|
|---|
| 276 | end;
|
|---|
| 277 | Map0 := Map0 shr 1;
|
|---|
| 278 | Map1 := 0;
|
|---|
| 279 | RowEnd := DataSize - 1;
|
|---|
| 280 | if RowEnd > b0 * 32 + 31 then
|
|---|
| 281 | RowEnd := b0 * 32 + 31;
|
|---|
| 282 | for b1 := b0 * 32 to RowEnd do
|
|---|
| 283 | begin
|
|---|
| 284 | Map1 := Map1 shr 1;
|
|---|
| 285 | if PData(NewData)[b1] <> PData(OldData)[b1] then
|
|---|
| 286 | begin
|
|---|
| 287 | Cardinal((@LogData[LogPos])^) := PData(NewData)[b1];
|
|---|
| 288 | inc(LogPos, 4);
|
|---|
| 289 | inc(Map1, $80000000);
|
|---|
| 290 | end;
|
|---|
| 291 | end;
|
|---|
| 292 | if Map1 > 0 then
|
|---|
| 293 | begin
|
|---|
| 294 | Map1 := Map1 shr (b0 * 32 + 31 - RowEnd);
|
|---|
| 295 | Cardinal((@LogData[MapPos])^) := Map1;
|
|---|
| 296 | MapPos := LogPos;
|
|---|
| 297 | inc(LogPos, 4);
|
|---|
| 298 | inc(Map0, $80000000);
|
|---|
| 299 | end;
|
|---|
| 300 | end;
|
|---|
| 301 | if Map0 = 0 then
|
|---|
| 302 | exit; // no changes
|
|---|
| 303 |
|
|---|
| 304 | Map0 := Map0 shr (31 - (DataSize - 1) div 32);
|
|---|
| 305 | Cardinal((@LogData[FState.nLog + 4])^) := Map0;
|
|---|
| 306 | code := Cardinal(Command - sExecute) shl 2 + Cardinal(Player) shl 16;
|
|---|
| 307 | Cardinal((@LogData[FState.nLog])^) := code;
|
|---|
| 308 | FState.nLog := MapPos
|
|---|
| 309 | end;
|
|---|
| 310 |
|
|---|
| 311 | procedure TCmdList.PutData(Data: pointer; Length: integer);
|
|---|
| 312 | begin
|
|---|
| 313 | if FState.nLog + Length > LogAlloc then
|
|---|
| 314 | begin
|
|---|
| 315 | inc(LogAlloc, LogGrow);
|
|---|
| 316 | ReallocMem(LogData, LogAlloc);
|
|---|
| 317 | end;
|
|---|
| 318 | move(Data^, LogData[FState.nLog], Length);
|
|---|
| 319 | inc(FState.nLog, Length);
|
|---|
| 320 | end;
|
|---|
| 321 |
|
|---|
| 322 | procedure TCmdList.CompleteMoveCode;
|
|---|
| 323 | begin
|
|---|
| 324 | if FState.MoveCode > 0 then
|
|---|
| 325 | begin
|
|---|
| 326 | if FState.MoveCode and 1 = 1 then
|
|---|
| 327 | PutData(@FState.MoveCode, 1) // Single FM
|
|---|
| 328 | else
|
|---|
| 329 | PutData(@FState.MoveCode, 3); // Single M
|
|---|
| 330 | FState.MoveCode := 0;
|
|---|
| 331 | end
|
|---|
| 332 | end;
|
|---|
| 333 |
|
|---|
| 334 | procedure TCmdList.LoadFromFile(const f: TFileStream);
|
|---|
| 335 | begin
|
|---|
| 336 | f.read(FState.nLog, 4);
|
|---|
| 337 | LogData := nil;
|
|---|
| 338 | LogAlloc := ((FState.nLog + 2) div LogGrow + 1) * LogGrow;
|
|---|
| 339 | ReallocMem(LogData, LogAlloc);
|
|---|
| 340 | f.read(LogData^, FState.nLog);
|
|---|
| 341 | FState.LoadPos := 0;
|
|---|
| 342 | end;
|
|---|
| 343 |
|
|---|
| 344 | procedure TCmdList.SaveToFile(const f: TFileStream);
|
|---|
| 345 | begin
|
|---|
| 346 | CompleteMoveCode;
|
|---|
| 347 | f.write(FState.nLog, 4);
|
|---|
| 348 | f.write(LogData^, FState.nLog)
|
|---|
| 349 | end;
|
|---|
| 350 |
|
|---|
| 351 | procedure TCmdList.AppendToFile(const f: TFileStream;
|
|---|
| 352 | const OldState: TCmdListState);
|
|---|
| 353 | begin
|
|---|
| 354 | CompleteMoveCode;
|
|---|
| 355 | f.write(FState.nLog, 4);
|
|---|
| 356 | f.Position := f.Position + OldState.nLog;
|
|---|
| 357 | f.write(LogData[OldState.nLog], FState.nLog - OldState.nLog)
|
|---|
| 358 | end;
|
|---|
| 359 |
|
|---|
| 360 | procedure TCmdList.Cut;
|
|---|
| 361 | begin
|
|---|
| 362 | FState.nLog := FState.LoadPos;
|
|---|
| 363 | end;
|
|---|
| 364 |
|
|---|
| 365 | function TCmdList.Progress: integer;
|
|---|
| 366 | begin
|
|---|
| 367 | if (FState.LoadPos = FState.nLog) and (FState.LoadMoveCode = 0) then
|
|---|
| 368 | result := 1000 // loading complete
|
|---|
| 369 | else if FState.nLog > 1 shl 20 then
|
|---|
| 370 | result := (FState.LoadPos shr 8) * 999 div (FState.nLog shr 8)
|
|---|
| 371 | else
|
|---|
| 372 | result := FState.LoadPos * 999 div FState.nLog
|
|---|
| 373 | end;
|
|---|
| 374 |
|
|---|
| 375 | { Format Specification:
|
|---|
| 376 |
|
|---|
| 377 | Non-ClientEx-Command:
|
|---|
| 378 | Byte3 Byte2 Byte1 Byte0
|
|---|
| 379 | ssssssss sssspppp cccccccc cccccc00
|
|---|
| 380 | (c = Command-sExecute, p = Player, s = Subject)
|
|---|
| 381 |
|
|---|
| 382 | ClientEx-Command:
|
|---|
| 383 | Byte2 Byte1 Byte0
|
|---|
| 384 | 0ppppccc cccccccc ccccc010
|
|---|
| 385 | (c = Command, p = Player)
|
|---|
| 386 |
|
|---|
| 387 | Single Move:
|
|---|
| 388 | Byte2 Byte1 Byte0
|
|---|
| 389 | 000000ss ssssssss ssaaa110
|
|---|
| 390 | (a = Direction, s = Subject)
|
|---|
| 391 |
|
|---|
| 392 | Move + Follow Move:
|
|---|
| 393 | Byte2 Byte1 Byte0
|
|---|
| 394 | 00bbb1ss ssssssss ssaaa110
|
|---|
| 395 | (a = Direction 1, s = Subject 1, b = Direction 2)
|
|---|
| 396 |
|
|---|
| 397 | Follow Move + Move:
|
|---|
| 398 | Byte2 Byte1 Byte0
|
|---|
| 399 | 00ssssss ssssssbb b110aaa1
|
|---|
| 400 | (a = Direction 1, b = Direction 2, s = Subject 2)
|
|---|
| 401 |
|
|---|
| 402 | Single Follow Move:
|
|---|
| 403 | Byte0
|
|---|
| 404 | 0000aaa1
|
|---|
| 405 | (a = Direction)
|
|---|
| 406 |
|
|---|
| 407 | Double Follow Move:
|
|---|
| 408 | Byte0
|
|---|
| 409 | bbb1aaa1
|
|---|
| 410 | (a = Direction 1, b = Direction 2)
|
|---|
| 411 | }
|
|---|
| 412 |
|
|---|
| 413 | end.
|
|---|
