ajout d'un éditeur de niveau lemmings (1ere tentative :p)

git-svn-id: file:///var/svn/2010-netlemmings/trunk@11 077b3477-7977-48bd-8428-443f22f7bfda

5 files changed, 941 insertions, 0 deletions

diff --git a/jeu-test/lemmings_level_designer_source/ChangeLog b/jeu-test/lemmings_level_designer_source/ChangeLog
new file mode 100644
index 0000000..e2626b2
--- /dev/null
+++ b/jeu-test/lemmings_level_designer_source/ChangeLog
@@ -0,0 +1,7 @@
+1999-11-10  Philip Kendall  <pak21@cam.ac.uk>
+
+	* New version: now compiles on machines without itoa
+
+1997-07-18  Philip Kendall  <pak21@cam.ac.uk>
+
+	* First version
diff --git a/jeu-test/lemmings_level_designer_source/copying.doc b/jeu-test/lemmings_level_designer_source/copying.doc
new file mode 100644
index 0000000..1839445
--- /dev/null
+++ b/jeu-test/lemmings_level_designer_source/copying.doc
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE

+		       Version 2, June 1991

+

+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.

+                          675 Mass Ave, Cambridge, MA 02139, USA

+ Everyone is permitted to copy and distribute verbatim copies

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+	Appendix: How to Apply These Terms to Your New Programs

+

+  If you develop a new program, and you want it to be of the greatest

+possible use to the public, the best way to achieve this is to make it

+free software which everyone can redistribute and change under these terms.

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+  To do so, attach the following notices to the program.  It is safest

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+the "copyright" line and a pointer to where the full notice is found.

+

+    <one line to give the program's name and a brief idea of what it does.>

+    Copyright (C) 19yy  <name of author>

+

+    This program is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 2 of the License, or

+    (at your option) any later version.

+

+    This program is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program; if not, write to the Free Software

+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

+

+Also add information on how to contact you by electronic and paper mail.

+

+If the program is interactive, make it output a short notice like this

+when it starts in an interactive mode:

+

+    Gnomovision version 69, Copyright (C) 19yy name of author

+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

+    This is free software, and you are welcome to redistribute it

+    under certain conditions; type `show c' for details.

+

+The hypothetical commands `show w' and `show c' should show the appropriate

+parts of the General Public License.  Of course, the commands you use may

+be called something other than `show w' and `show c'; they could even be

+mouse-clicks or menu items--whatever suits your program.

+

+You should also get your employer (if you work as a programmer) or your

+school, if any, to sign a "copyright disclaimer" for the program, if

+necessary.  Here is a sample; alter the names:

+

+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program

+  `Gnomovision' (which makes passes at compilers) written by James Hacker.

+

+  <signature of Ty Coon>, 1 April 1989

+  Ty Coon, President of Vice

+

+This General Public License does not permit incorporating your program into

+proprietary programs.  If your program is a subroutine library, you may

+consider it more useful to permit linking proprietary applications with the

+library.  If this is what you want to do, use the GNU Library General

+Public License instead of this License.
\ No newline at end of file
diff --git a/jeu-test/lemmings_level_designer_source/lem2tap.c b/jeu-test/lemmings_level_designer_source/lem2tap.c
new file mode 100644
index 0000000..68c858e
--- /dev/null
+++ b/jeu-test/lemmings_level_designer_source/lem2tap.c
@@ -0,0 +1,234 @@
+/* LEM2TAP.C: for converting a .LEM file and a .BMP file to a .TAP

+   file for use with the Spectrum version of Lemmings

+   Copyright (c) 1997,9 Philip Kendall

+

+    This program is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 2 of the License, or

+    (at your option) any later version.

+

+    This program is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program; if not, write to the Free Software

+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

+

+    Author contact information:

+

+    E-mail: pak21@cam.ac.uk (until at least June 2002)

+    Postal address: 15 Crescent Road, Wokingham, Berks, RG40 2DB, England

+

+*/

+

+#include <stdio.h>		/* standard I/O routines */

+#include <stdlib.h>		/* various standard routines */

+#include <string.h>		/* string handling routines */

+

+#define BufLen 1024

+#define NameLen 32

+#define SkillNum 8

+#define HazardNum 10

+#define FNameLen 256

+#define BMPLen 8192

+#define LevelLen 8405

+

+int ReadBMP(char *FName,char *BMPData);

+void ReadLine(char *Buffer,FILE *f);

+unsigned int ReadInt(FILE *f);

+unsigned long ReadLong(FILE *f);

+

+int main(int argc, char** argv)

+{FILE *f;

+ char Buffer[BufLen],Name[NameLen+1],FName[FNameLen],*BMPData,*LevelData,*ptr;

+ unsigned Level,Rating,Number,Save,Rate,Time,Skills[SkillNum],StartX,StartY,

+	  HomeX,HomeY,Colour,Hazard[HazardNum],HazardX[HazardNum],

+	  HazardY[HazardNum],i,j;

+

+ if(argc<3)

+   {fprintf(stderr,"Usage: lem2tap filename.lem filename.tap\n"); return 2;}

+

+ f=fopen(argv[1],"rt");

+ if(ferror(f))

+     {fprintf(stderr,"Error opening %s for input\n",argv[1]); return 1;}

+

+ ReadLine(Buffer,f); sscanf(Buffer,"%u,%u",&Level,&Rating);

+ ReadLine(Buffer,f); sscanf(Buffer,"%u,%u",&Number,&Save);

+ ReadLine(Buffer,f); sscanf(Buffer,"%u",&Rate);

+ ReadLine(Buffer,f); sscanf(Buffer,"%u",&Time);

+ ReadLine(Buffer,f);

+ sscanf(Buffer,"%u,%u,%u,%u,%u,%u,%u,%u",&Skills[0],&Skills[1],&Skills[2],

+	&Skills[3],&Skills[4],&Skills[5],&Skills[6],&Skills[7]);

+ memset(Buffer,' ',NameLen); /* Fill Buffer with spaces */

+ ReadLine(Buffer,f); strncpy(Name,Buffer,NameLen); Name[NameLen]='\0';

+ ReadLine(Buffer,f);

+ sscanf(Buffer,"%u,%u,%u,%u",&StartX,&StartY,&HomeX,&HomeY);

+ ReadLine(Buffer,f); sscanf(Buffer,"%u",&Colour);

+ for(i=0;i<HazardNum;i++)

+ {ReadLine(Buffer,f);

+  sscanf(Buffer,"%u,%u,%u",&Hazard[i],&HazardX[i],&HazardY[i]);

+ }

+ ReadLine(Buffer,f); sscanf(Buffer,"%s",FName);

+

+ fclose(f);

+

+ BMPData=(char*)malloc(BMPLen);

+ if(!BMPData)

+     {fprintf(stderr,"Error allocating memory for BMPData\n"); return 3;}

+

+ if(ReadBMP(FName,BMPData)) {free(BMPData); return 6;}

+

+ LevelData=(char*)malloc(LevelLen);

+ if(!LevelData)

+     {fprintf(stderr,"Error allocating memory for LevelData\n");

+      free(BMPData); return 5;

+     }

+

+ f=fopen(argv[2],"ab");

+ if(ferror(f))

+   {fprintf(stderr,"Error opening %s for output\n",argv[2]);

+    free(BMPData); free(LevelData); return 4;

+   }

+

+ fputc(3,f); fputc(0,f);	/* Length of the header */

+ fputc(0,f);			/* Header ID byte */

+ fputc(Level,f);		/* Level number */

+ fputc(Level,f);		/* Checksum */

+

+ ptr=LevelData;

+ *ptr++=Level;			/* Level number */

+ *ptr++=Number;			/* Number of lemmings */

+ *ptr++=Rate;			/* Initial/min release rate */

+ *ptr++=StartX%0x100; *ptr++=StartX/0x100;

+ *ptr++=StartY;			/* Trapdoor position */

+ *ptr++=(Time-1);		/* (Time available/min)-1 */

+ for(i=0;i<SkillNum;i++) *ptr++=Skills[i]; /* Skills available */

+ *ptr++=Colour;			/* Level colours */

+ *ptr++=Save;			/* Number to be saved */

+ *ptr++=HomeX%0x100; *ptr++=HomeX/0x100;

+ *ptr++=HomeY;			/* Home position */

+ *ptr++=Rating;			/* Level rating */

+ for(i=0;i<NameLen;i++) *ptr++=Name[i]; /* Level name */

+ for(i=0;i<HazardNum;i++)	/* For each hazard: */

+ {*ptr++=Hazard[i];		/* Hazard type */

+  *ptr++=HazardX[i]%0x100; *ptr++=HazardX[i]/0x100;

+  *ptr++=HazardY[i];		/* and position */

+ }

+ for(i=0;i<120;i++) *ptr++='\0'; /* blank space */

+

+ /* finally, write out the graphics -- remember that the .BMP format has the

+    origin at the lower left corner, but we need the origin at the upper left

+ */

+ for(i=0;i<128;i++)

+   for(j=0;j<(512/8);j++)

+     *ptr++=BMPData[((127-i)*(512/8))+j];

+

+ /* Write out the prelims */

+ fputc((LevelLen+2)%0x100,f); fputc((LevelLen+2)/0x100,f); /* Length */

+ fputc(0xff,f);			/* Datablock ID byte */

+

+ /* Calculate the checksum and write the level data out */

+ j=0xff; for(i=0;i<LevelLen;i++)

+   {j^=LevelData[i]; fputc(LevelData[i],f);}

+

+ /* Finally, write out the checksum */

+ fputc(j,f);

+

+ /* Close the file */

+ fclose(f);

+

+ /* Release memory */

+ free(BMPData); free(LevelData);

+

+ /* and go home :-) */

+ return 0;

+

+}

+

+int ReadBMP(char *FName,char *BMPData)

+{FILE *f; unsigned i; unsigned long l;

+ f=fopen(FName,"rb"); if(ferror(f))

+     {fprintf(stderr,"Unable to open %s for input\n",FName); return 1;}

+

+ i=ReadInt(f);

+ if( i != 'B' + 'M'*0x100 )

+     {fprintf(stderr,"Error: ID bytes are not \"BM\"\n");

+      fclose(f); return 2;

+     }

+ l=ReadLong(f);

+ if(l!=0x203e)

+     {fprintf(stderr,"Error: File size stored in %s is incorrect\n"

+		     "Expected: 203eh; Found: %lxh\n",FName,l);

+      fclose(f); return 3;

+     }

+ l=ReadLong(f);

+ if(l) fprintf(stderr,"Warning: reserved bytes are non-zero\n");

+ l=ReadLong(f);

+ if(l!=0x3e)

+     {fprintf(stderr,"Error: Bitmap offset is incorrect\n"

+		     "Expected: 3eh; Found: %lxh\n",l); fclose(f); return 4;}

+ l=ReadLong(f);

+ if(l!=40)

+     {fprintf(stderr,"Error: Size of the bitmap information is wrong\n"

+		     "Expected: 40; Found: %lu\n",l); fclose(f); return 5;}

+ l=ReadLong(f);

+ if(l!=0x200)

+     {fprintf(stderr,"Error: Bitmap width is wrong\n"

+		     "Expected: 0x200; Found: %lxh\n",l);

+      fclose(f); return 6;

+     }

+ l=ReadLong(f);

+ if(l!=0x80)

+     {fprintf(stderr,"Error: Bitmap height is wrong\n"

+		     "Expected: 0x80; Found: %lxh\n",l);

+      fclose(f); return 7;

+     }

+ i=ReadInt(f);

+ if(i!=1)

+     {fprintf(stderr,"Error: Planes per pixel is wrong\n"

+		     "Expected: 1; Found: %u\n",i); fclose(f); return 8;}

+ i=ReadInt(f);

+ if(i!=1)

+     {fprintf(stderr,"Error: Bits per pixel is wrong\n"

+		     "Expected: 1; Found: %u\n",i); fclose(f); return 9;}

+ l=ReadLong(f);

+ if(l)

+     {fprintf(stderr,"Sorry -- Can't handle compressed images!\n");

+      fclose(f); return 10;

+     }

+ l=ReadLong(f);

+ if(l!=0x10000)

+     {fprintf(stderr,"Error: Number of pixels in image is wrong\n"

+		     "Expected: 0x10000; Found: %lxh\n",l);

+      fclose(f); return 11;

+     }

+ fseek(f,8,SEEK_CUR);		/* Skip pixels per metre */

+ l=ReadLong(f);

+ if(l!=2)

+     {fprintf(stderr,"Error: Number of colours used is wrong\n"

+		     "Expected: 2; Found: %u\n",l); fclose(f); return 12;}

+ l=ReadLong(f);

+ if(l!=2)

+     {fprintf(stderr,"Error: Number of important colours is wrong\n"

+		     "Expected: 2; Found: %u\n",l); fclose(f); return 13;}

+ fseek(f,8,SEEK_CUR);		/* Skip colours */

+ fread(BMPData,BMPLen,1,f);	/* Finally, actually read the data... */

+

+ fclose(f);

+

+ return 0;

+}

+

+void ReadLine(char *Buffer,FILE *f)

+{char *ptr=Buffer-1;

+ while( !ferror(f) && !feof(f) )

+     {*(++ptr)=fgetc(f); if(*ptr=='\n') break;}

+ *ptr='\0';

+}

+

+unsigned ReadInt(FILE *f) {return fgetc(f)+fgetc(f)*0x100;}

+

+unsigned long ReadLong(FILE *f)

+{return fgetc(f)+fgetc(f)*0x100+fgetc(f)*0x10000+fgetc(f)*0x1000000;}

diff --git a/jeu-test/lemmings_level_designer_source/lemmdes.txt b/jeu-test/lemmings_level_designer_source/lemmdes.txt
new file mode 100644
index 0000000..da6d5f9
--- /dev/null
+++ b/jeu-test/lemmings_level_designer_source/lemmdes.txt
@@ -0,0 +1,138 @@
+

+                           Lemmings Level Designer

+                          -------------------------

+

+                      Copyright (c) 1997,9 Philip Kendall

+

+------------------------------------------------------------------------------

+

+    This program is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 2 of the License, or

+    (at your option) any later version.

+

+    This program is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program; if not, write to the Free Software

+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

+

+------------------------------------------------------------------------------

+

+0. Contents

+-----------

+

+  1. Overview

+  2. Tap2Lem

+  3. Lem2Tap

+  4. .lem Format

+  5. Miscellaneous

+  6. Author contact information

+  7. Thanks

+

+1. Overview

+-----------

+

+  This set of two programs (Tap2Lem and Lem2Tap) are designed to allow you to

+  easily modify and create new levels for the ZX Spectrum version of Lemmings.

+  They work by converting between a .tap file (an image of a tape - this

+  format is used by many Spectrum emulators), a simple text file specifying

+  the information about the level (the .lem file) and a Windows bitmap (.bmp)

+  containing the graphics for the level.

+

+2. Tap2Lem

+----------

+

+  Syntax: Tap2Lem tapefile

+

+  Tap2Lem takes the .tap file given as tapefile, and for every Lemmings level

+  it finds within that file, it will output two files:

+

+    1) levelnn.lem, where nn is the level number, which contains the

+    information on the level name, number of skills available, trapdoor and

+    home locations, etc. See Section 4 for a complete descripition of the .lem

+    format

+

+    2) levelnn.bmp, a 512x128x2 Windows bitmap which contains the graphics for

+    the level.

+

+  Note that files already existing with the names given above will be

+  overwritten.

+

+3. Lem2Tap

+----------

+

+  Syntax: Lem2Tap textfile tapefile

+

+  Lem2Tap takes the .lem file given as textfile and using that (and the .bmp

+  file specified within it - see Section 4), appends the Lemmings level

+  specified to tapefile.

+

+  The .bmp file must be a 512x128x2 Windows bitmap; no other sizes or number

+  of colours are supported. Also, compressed bitmaps are not supported.

+

+4. .lem Format

+--------------

+

+  The .lem files used to specify the level information should be text files,

+  in your system's normal format for such files. How files which are not in

+  your system's normal format will depend on your compiler.

+

+  No blank lines are allowed in .lem files (except at the end and possibly if

+  you want a blank level name). Comments are permitted - these should begin

+  with a semicolon (;) and continue to the end of the line. Data items on the

+  same line should be separated with commas (,), and should be specified in

+  decimal.

+

+  1st line: The level number and the rating of the level (1=Fun, 2=Tricky,

+            3=Taxing, 4=Mayhem).

+  2nd line: The number of lemmings are the number to be saved.

+  3rd line: The initial (and minimum) release rate.

+  4th line: The time in minutes available to finish the level.

+  5th line: The number of each skill available (in the order climbers,

+            floaters, bombers, blockers, builders, bashers, miners, diggers)

+  6th line: The level name (max 32 characters; only capitals, digits and

+            spaces will appear correctly). No comments are permitted within

+            the first 32 characters.

+  7th line: The x and y locations of the trapdoor and home respectively.

+  8th line: The colours used to display the levels (in standard Spectrum

+            attribute format - bit 7: flash, bit 6: bright, bits 5-3: paper

+            colour, bits 2-0: ink colour)

+  9th-18th lines: The hazards on the level, one per line. Each line should

+                  have three numbers: the hazard type (only 4, water, allowed)

+                  and the x and y locations of the hazard.

+  19th line: The name of the 512x128x2 Windows bitmap containing the level

+             graphics.

+

+5. Miscellaneous

+----------------

+

+  1. The specification of the .tap file format can be found in either

+     FAQ for the comp.sys.sinclair newsgroup

+     (http://www.kendalls.demon.co.uk/cssfaq/).

+

+  2. The Windows bitmap format, being a Microsoft format, isn't well

+     specified. Your best bet (and what I did) is to use a search engine with

+     something like "bmp format specification".

+

+  3. Lemmings is available from

+                      ftp://ftp.nvg.ntnu.no/pub/sinclair/tapes/l/lemmings.zip

+

+6. Author contact information

+-----------------------------

+

+  E-mail: pak21@cam.ac.uk (should last until at least June 2002)

+  Postal address: 15 Crescent Road, Wokingham, Berks, RG40 2DB, England

+

+7. Thanks

+---------

+

+  Darren Salt: for writing the first (and only) Lemmings editor that I found,

+               which inspired me to write this and also helped me to work out

+               the bits of the format which I hadn't done up to that point

+               (principally the hazards). Darren's editor is available from

+               ftp://ftp.nvg.unit.no/pub/sinclair/snaps/games/unsorted-new/

+                                                      misc/DS_Own/LemmsEd.Z80.

diff --git a/jeu-test/lemmings_level_designer_source/tap2lem.c b/jeu-test/lemmings_level_designer_source/tap2lem.c
new file mode 100644
index 0000000..0d8c827
--- /dev/null
+++ b/jeu-test/lemmings_level_designer_source/tap2lem.c
@@ -0,0 +1,223 @@
+/* TAP2LEM.C: convert a .TAP file containing Lemmings levels to pairs

+   of .LEM and .BMP files

+   Copyright (c) 1997,9 Philip Kendall

+

+    This program is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 2 of the License, or

+    (at your option) any later version.

+

+    This program is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program; if not, write to the Free Software

+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

+

+    Author contact information:

+

+    E-mail: pak21@cam.ac.uk (until at least June 2002)

+    Postal address: 15 Crescent Road, Wokingham, Berks, RG40 2DB, England

+

+*/

+

+#include <stdio.h>

+#include <stdlib.h>

+#include <string.h>

+

+const char *InFName="lemmings.tap";

+const unsigned LevelLen=8405;

+const char *OutFBase="level";

+const char *OutFExt1=".lem";

+const char *OutFExt2=".bmp";

+#define OutFLen 13

+#define BufLen 256

+const unsigned BMPHeight=128;

+const unsigned BMPWidth=512;

+

+const unsigned char BMPHeader[] = {

+

+0x42,0x4D,0x3E,0x20,0x00,0x00,0x00,0x00,

+0x00,0x00,0x3E,0x00,0x00,0x00,0x28,0x00,

+0x00,0x00,0x00,0x02,0x00,0x00,0x80,0x00,

+0x00,0x00,0x01,0x00,0x01,0x00,0x00,0x00,

+0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,

+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,

+0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,

+0x00,0x00,0xFF,0xFF,0xFF,0x00

+

+};

+

+const unsigned BMPHeaderLen=sizeof(BMPHeader)/sizeof(unsigned char);

+

+int DoLevel(FILE *f);

+unsigned int ReadInt(FILE *f);

+unsigned long ReadLong(FILE *f);

+

+int main(int argc,char **argv)

+{FILE *f;

+

+ if(argc<2) {fprintf(stderr,"Syntax: tap2lem tapefile\n"); return 4;}

+

+ f=fopen(argv[1],"rb");

+ if(ferror(f))

+     {fprintf(stderr,"Error opening %s for input\n",argv[1]); return 1;}

+

+ while( !feof(f) && !ferror(f) ) if(DoLevel(f)) {fclose(f); return 2;}

+

+ if(ferror(f))

+ {fprintf(stderr,"Error reading from %s\n",InFName); fclose(f);

+  return 3;

+ }

+

+ fclose(f);

+

+ return 0;

+}

+

+int DoLevel(FILE *f)

+{unsigned Length,Good=0,i;

+ unsigned char ch,HLevel,*LevelData,CheckSum,OutFName[OutFLen],

+	       OutFName2[OutFLen],Buffer[BufLen];

+ FILE *f2;

+

+ LevelData=(unsigned char*)malloc(LevelLen);

+ if(!LevelData)

+     {fprintf(stderr,"Not enough memory for LevelData\n"); return 1;}

+

+ /* For a Lemmings level, we're looking for a block of length 3 followed block

+    of length 8407

+ */

+

+ while(!Good && !feof(f) && !ferror(f))

+ {

+  /* If the first block doesn't have length 3, get the next block */

+  if((Length=ReadInt(f))!=3) 

+      {if(!feof(f) && !ferror(f)) fseek(f,Length,SEEK_CUR); continue;}

+

+  /* If the flag byte isn't 00h (header), get the next block */

+  if((ch=fgetc(f))!=0)

+      {if(!feof(f) && !ferror(f)) fseek(f,2,SEEK_CUR); continue;}

+

+  /* Get the level number as stored in the header, and the checksum */

+  HLevel=fgetc(f); ch=fgetc(f);

+

+  /* See if the next block has the right length; if it has, assume we have

+     a Lemmings level */

+  if((Length=ReadInt(f))!=LevelLen+2)

+      {if(!feof(f) && !ferror(f)) fseek(f,Length,SEEK_CUR); continue;}

+

+  /* If header checksum is wrong, print a warning */

+  if(ch!=HLevel)

+     fprintf(stderr,"Warning: header checksum for level %u is wrong\n",

+	     (unsigned)HLevel					       );

+

+  /* Read in the level data's flag byte, and give up if it is not 0xff */

+  if((ch=fgetc(f))!=0xff)

+      {if(!feof(f) && !ferror(f)) fseek(f,LevelLen+1,SEEK_CUR); continue;}

+

+  /* Read in the level data */

+  fread(LevelData,LevelLen,1,f);

+

+  /* Finally, read in the checksum */

+  CheckSum=fgetc(f); ch=0xff;

+  for(i=0;i<LevelLen;i++) ch^=LevelData[i];

+  if(ch!=CheckSum)

+     fprintf(stderr,"Warning: data checksum for level %u is wrong\n",

+	     (unsigned)LevelData[0]				     );

+

+  /* And say we're happy with this level */

+  Good=1;

+

+ }

+

+ /* If we didn't find anything, return */

+ if(!Good) {free(LevelData); return 0;}

+

+ /* If the two level numbers don't match up, print a warning */

+ if(HLevel!=LevelData[0])

+    fprintf(stderr,"Warning: level numbers specified in header and in data"

+	    "differ\n  In header: %u\n	  In data: %u\nUsing %u\n",

+	    (unsigned)HLevel,(unsigned)LevelData[0],(unsigned)LevelData[0] );

+

+ /* Set up the output filenames */

+ strcpy(OutFName,OutFBase);

+ if(LevelData[0]<10) strcat(OutFName,"0");

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x00]);

+ strcat(OutFName,Buffer); strcpy(OutFName2,OutFName);

+ strcat(OutFName,OutFExt1); strcat(OutFName2,OutFExt2);

+

+ /* Open the .LEM file */

+ f2=fopen(OutFName,"wt");

+ if(ferror(f2))

+ {fprintf(stderr,"Error opening %s for output\n",OutFName);

+  free(LevelData); return 2;

+ }

+

+ /* Buffer already contains the text version of the level number */

+ strcat(Buffer,","); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x14]); /* Rating */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x01]); /* Number of lemmings */

+ strcat(Buffer,","); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x10]); /* Number to save */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x02]); /* Initial release rate */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x06]+1); /* Time/minutes */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ for(i=0x07;i<=0x0e;i++)		/* Skills */

+ {sprintf(Buffer,"%u",(unsigned)LevelData[i]);

+  strcat(Buffer,(i==0x0e?"\n":",")); fputs(Buffer,f2);

+ }

+ fwrite(&LevelData[0x15],32,1,f2); fputc('\n',f2); /* Level name */

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x04]*0x100+LevelData[0x03]);

+ strcat(Buffer,","); fputs(Buffer,f2); /* Trapdoor X */

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x05]); /* Trapdoor Y */

+ strcat(Buffer,","); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x12]*0x100+LevelData[0x11]);

+ strcat(Buffer,","); fputs(Buffer,f2); /* Home X */

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x13]); /* Home Y */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ sprintf(Buffer,"%u",(unsigned)LevelData[0x0f]); /* Colours */

+ strcat(Buffer,"\n"); fputs(Buffer,f2);

+ for(i=0x35;i<0x5d;i+=4)		/* Hazards */

+ {sprintf(Buffer,"%u",(unsigned)LevelData[i]); /* Type */

+  strcat(Buffer,","); fputs(Buffer,f2);

+  sprintf(Buffer,"%u",(unsigned)LevelData[i+2]*0x100+LevelData[i+1]);

+  strcat(Buffer,","); fputs(Buffer,f2); /* X */

+  sprintf(Buffer,"%u",(unsigned)LevelData[i+3]); /* Y */

+  strcat(Buffer,"\n"); fputs(Buffer,f2);

+ }

+ fputs(OutFName2,f2);		/* .BMP file name */

+

+ fclose(f2);

+

+ /* Open the .BMP file */

+ f2=fopen(OutFName2,"wb");

+ if(ferror(f2))

+ {fprintf(stderr,"Error opening %s for output\n",OutFName2);

+  free(LevelData); return 3;

+ }

+

+ /* Write out the .BMP header */

+ for(i=0;i<BMPHeaderLen;i++) fputc(BMPHeader[i],f2);

+

+ /* And the data */

+ for(i=1;i<=BMPHeight;i++)

+   fwrite(&LevelData[0xd5+(BMPHeight-i)*(BMPWidth/8)],(BMPWidth/8),1,f2);

+

+ fclose(f2);

+

+ free(LevelData);

+

+ return 0;

+

+}

+

+unsigned ReadInt(FILE *f) {return fgetc(f)+fgetc(f)*0x100;}

+

+unsigned long ReadLong(FILE *f)

+{return fgetc(f)+fgetc(f)*0x100+fgetc(f)*0x10000+fgetc(f)*0x1000000;}