Implement UserMapHacks.

git-svn-id: https://svn.eduke32.com/eduke32@4884 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/build.h

@@ -649,6 +649,16 @@ typedef struct {
 EXTERN int32_t guniqhudid;
 EXTERN int32_t spritesortcnt;
 extern int32_t g_loadedMapVersion;
+extern uint8_t g_loadedMapMD4[16];
+
+typedef struct {
+    char *mhkfile;
+    char *title;
+    uint8_t md4[16];
+} usermaphack_t;
+extern int32_t compare_usermaphacks(const void *, const void *);
+extern usermaphack_t *usermaphacks;
+extern int32_t num_usermaphacks;
 
 #if !defined DEBUG_MAIN_ARRAYS
 EXTERN spriteext_t *spriteext;

polymer/eduke32/build/src/defs.c

@@ -273,7 +273,7 @@ static int32_t defsparser(scriptfile *script)
         { "cachesize",       T_CACHESIZE        },
         { "dummytilefrompic",T_IMPORTTILE       },
         { "tilefromtexture", T_TILEFROMTEXTURE  },
-        { "mapinfo",         T_MAPINFO          },  // dummy
+        { "mapinfo",         T_MAPINFO          },
         { "echo",            T_ECHO             },
     };
 
@@ -2134,7 +2134,7 @@ static int32_t defsparser(scriptfile *script)
 
         case T_MAPINFO:
         {
-            char *dummy, *dummy2;
+            char *mapmd4string = NULL, *title = NULL, *mhkfile = NULL, *mapinfoend, *dummy;
             static const tokenlist mapinfotokens[] =
             {
                 { "mapfile",    T_MAPFILE },
@@ -2142,25 +2142,47 @@ static int32_t defsparser(scriptfile *script)
                 { "mapmd4",     T_MAPMD4 },
                 { "mhkfile",    T_MHKFILE },
             };
+            int32_t previous_usermaphacks = num_usermaphacks;
 
-            if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&dummy))) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&mapinfoend))) break;
-            while (script->textptr < dummy)
+            while (script->textptr < mapinfoend)
             {
                 switch (getatoken(script,mapinfotokens,ARRAY_SIZE(mapinfotokens)))
                 {
                 case T_MAPFILE:
-                    scriptfile_getstring(script,&dummy2);
+                    scriptfile_getstring(script,&dummy);
                     break;
                 case T_MAPTITLE:
-                    scriptfile_getstring(script,&dummy2);
+                    scriptfile_getstring(script,&title);
                     break;
                 case T_MAPMD4:
-                    scriptfile_getstring(script,&dummy2);
+                {
-                    break;
+                    scriptfile_getstring(script,&mapmd4string);
-                case T_MHKFILE:
+
-                    scriptfile_getstring(script,&dummy2);
+                    num_usermaphacks++;
+                    usermaphacks = (usermaphack_t *)Xrealloc(usermaphacks, num_usermaphacks*sizeof(usermaphack_t));
+                    usermaphack_t *newusermaphack = &usermaphacks[num_usermaphacks - 1];
+
+                    for (int i = 0; i < 16; i++)
+                    {
+                        char smallbuf[3] = { 0, 0, 0 };
+                        smallbuf[0] = mapmd4string[2*i];
+                        smallbuf[1] = mapmd4string[2*i+1];
+                        newusermaphack->md4[i] = Bstrtol(smallbuf, NULL, 16);
+                    }
+
                     break;
                 }
+                case T_MHKFILE:
+                    scriptfile_getstring(script,&mhkfile);
+                    break;
+                }
+            }
+
+            for (; previous_usermaphacks < num_usermaphacks; previous_usermaphacks++)
+            {
+                usermaphacks[previous_usermaphacks].mhkfile = mhkfile ? Bstrdup(mhkfile) : NULL;
+                usermaphacks[previous_usermaphacks].title = title ? Bstrdup(title) : NULL;
             }
         }
         break;
@@ -2212,6 +2234,8 @@ int32_t loaddefinitionsfile(const char *fn)
     DO_FREE_AND_NULL(faketilebuffer);
     faketilebuffersiz = 0;
 
+    qsort(usermaphacks, num_usermaphacks, sizeof(usermaphack_t), compare_usermaphacks);
+
     if (!script) return -1;
 
     initprintf("\n");

polymer/eduke32/build/src/engine.c

@@ -82,6 +82,14 @@ float debug1, debug2;
 
 int32_t mapversion=7; // JBF 20040211: default mapversion to 7
 int32_t g_loadedMapVersion = -1;  // -1: none (e.g. started new)
+uint8_t g_loadedMapMD4[16];
+
+int32_t compare_usermaphacks(const void *a, const void *b)
+{
+    return Bmemcmp(((usermaphack_t*) a)->md4, ((usermaphack_t*) b)->md4, 16);
+}
+usermaphack_t *usermaphacks;
+int32_t num_usermaphacks;
 
 static int32_t get_mapversion(void);
 
@@ -9225,6 +9233,15 @@ void uninitengine(void)
 #endif
 
     uninitsystem();
+
+    for (i = 0; i < num_usermaphacks; i++)
+    {
+        if (usermaphacks[i].mhkfile)
+            Bfree(usermaphacks[i].mhkfile);
+        if (usermaphacks[i].title)
+            Bfree(usermaphacks[i].title);
+    }
+    Bfree(usermaphacks);
 }
 
 
@@ -10586,6 +10603,8 @@ static void check_sprite(int32_t i)
 LUNATIC_CB int32_t (*loadboard_maptext)(int32_t fil, vec3_t *dapos, int16_t *daang, int16_t *dacursectnum);
 #endif
 
+#include "md4.h"
+
 // flags: 1, 2: former parameter "fromwhere"
 //           4: don't call polymer_loadboard
 //           8: don't autoexec <mapname>.cfg
@@ -10733,6 +10752,13 @@ int32_t loadboard(const char *filename, char flags, vec3_t *dapos, int16_t *daan
 #ifdef NEW_MAP_FORMAT
 skip_reading_mapbin:
 #endif
+
+    klseek(fil, 0, SEEK_SET);
+    int32_t boardsize = kfilelength(fil);
+    uint8_t *fullboard = (uint8_t*)Xmalloc(boardsize);
+    kread(fil, fullboard, boardsize);
+    md4once(fullboard, boardsize, g_loadedMapMD4);
+
     kclose(fil);
     // Done reading file.
 
@@ -10783,6 +10809,8 @@ skip_reading_mapbin:
         E_MapArt_Setup(filename);
     }
 
+    // initprintf("Loaded map \"%s\" (md4sum: %08x%08x%08x%08x)\n", filename, B_BIG32(*((int32_t*)&md4out[0])), B_BIG32(*((int32_t*)&md4out[4])), B_BIG32(*((int32_t*)&md4out[8])), B_BIG32(*((int32_t*)&md4out[12])));
+
     return finish_loadboard(dapos, dacursectnum, numsprites, myflags);
 }
 
@@ -18009,7 +18037,7 @@ void hash_add(hashtable_t *t, const char *s, intptr_t key, int32_t replace)
     hashitem_t *cur, *prev=NULL;
     int32_t code;
 
-    if (t->items == NULL)
+    if (EDUKE32_PREDICT_FALSE(t->items == NULL))
     {
         initprintf("hash_add(): table not initialized!\n");
         return;

polymer/eduke32/source/premap.c

@@ -1695,6 +1695,15 @@ void G_FadeLoad(int32_t r, int32_t g, int32_t b, int32_t start, int32_t end, int
     }
 }
 
+static int32_t G_TryMapHack(const char *mhkfile)
+{
+    int32_t retval = loadmaphack(mhkfile);
+
+    if (!retval)
+        initprintf("Loaded map hack file \"%s\"\n", mhkfile);
+
+    return retval;
+}
 
 static void G_LoadMapHack(char *outbuf, const char *filename)
 {
@@ -1703,8 +1712,12 @@ static void G_LoadMapHack(char *outbuf, const char *filename)
 
     append_ext_UNSAFE(outbuf, ".mhk");
 
-    if (!loadmaphack(outbuf))
+    if (G_TryMapHack(outbuf))
-        initprintf("Loaded map hack file \"%s\"\n",outbuf);
+    {
+        usermaphack_t *mapinfo = (usermaphack_t*)bsearch(g_loadedMapMD4 - offsetof(usermaphack_t, md4), usermaphacks, num_usermaphacks, sizeof(usermaphack_t), compare_usermaphacks);
+        if (mapinfo)
+            G_TryMapHack(mapinfo->mhkfile);
+    }
 }
 
 static void G_ReallocCopyMusicName(int32_t level_number, const char *levnamebuf, int32_t altp)