Free Hero Mesh

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Overview
Comment:Implement level loading; also several bug fixes needed for it to work properly.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 126d7178297abed44549d253afa86c404e6e53af
User & Date: user on 2018-08-18 01:44:29
Other Links: manifest | tags
Context
2018-08-19
21:53
Implement loading level titles (and level version and level code) check-in: 69c81d7254 user: user tags: trunk
2018-08-18
01:44
Implement level loading; also several bug fixes needed for it to work properly. check-in: 126d717829 user: user tags: trunk
2018-07-22
20:19
Add license notice about SDL1 check-in: fc64df1538 user: user tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified exec.c from [89cee0572f] to [f13cb4246e].

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    if(m!=VOIDLINK) objects[m]->down=n;
  }
}

#define OBJECT_ARRAY_BLOCK 256
Uint32 objalloc(Uint16 c) {
  // Allocates a new object of the given class; links into the event list but not into the playfield.

  // Does not send any messages or otherwise notify anyone that it has been created.
  // Returns VOIDLINK if object cannot be created.
  Uint32 n;
  Class*cl=classes[c];
  Object*o=calloc(1,sizeof(Object)+cl->uservars*sizeof(Value));
  if(!c || !cl || cl->cflags&(CF_GROUP|CF_NOCLASS1|CF_NOCLASS2)) goto bad;
  if(!o) fatal("Allocation failed\n");








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    if(m!=VOIDLINK) objects[m]->down=n;
  }
}

#define OBJECT_ARRAY_BLOCK 256
Uint32 objalloc(Uint16 c) {
  // Allocates a new object of the given class; links into the event list but not into the playfield.
  // All fields are initialized by the class or to zero.
  // Does not send any messages or otherwise notify anyone that it has been created.
  // Returns VOIDLINK if object cannot be created.
  Uint32 n;
  Class*cl=classes[c];
  Object*o=calloc(1,sizeof(Object)+cl->uservars*sizeof(Value));
  if(!c || !cl || cl->cflags&(CF_GROUP|CF_NOCLASS1|CF_NOCLASS2)) goto bad;
  if(!o) fatal("Allocation failed\n");
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  execute_program(code,p,to);
  msgvars=saved;
  
}

void annihilate(void) {
  Uint32 i;


  if(!objects) return;
  for(i=0;i<nobjects;i++) free(objects[i]);
  nobjects=0;
  free(objects);
  objects=0;
  firstobj=lastobj=VOIDLINK;
  for(i=0;i<64*64;i++) playfield[i]=VOIDLINK;
}

const char*execute_turn(int key) {
  if(setjmp(my_env)) return my_error;
  lastimage_processing=0;
  
  return 0;
}








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  execute_program(code,p,to);
  msgvars=saved;
  
}

void annihilate(void) {
  Uint32 i;
  for(i=0;i<64*64;i++) playfield[i]=VOIDLINK;
  firstobj=lastobj=VOIDLINK;
  if(!objects) return;
  for(i=0;i<nobjects;i++) free(objects[i]);
  nobjects=0;
  free(objects);
  objects=0;


}

const char*execute_turn(int key) {
  if(setjmp(my_env)) return my_error;
  lastimage_processing=0;
  
  return 0;
}

Modified function.c from [d312f6f623] to [37ed16a163].

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#include "smallxrm.h"
#include "heromesh.h"

typedef struct {
  struct sqlite3_vtab_cursor;
  sqlite3_int64 rowid;
  char unique,eof;
  Uint8 arg[4];
} Cursor;

static void find_first_usable_image(const Class*cl,sqlite3_context*cxt) {
  int i;
  if(cl->cflags&CF_GROUP) return;
  if(!cl->images) return;
  for(i=0;i<cl->nimages;i++) {








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#include "smallxrm.h"
#include "heromesh.h"

typedef struct {
  struct sqlite3_vtab_cursor;
  sqlite3_int64 rowid;
  char unique,eof;
  Uint16 arg[4];
} Cursor;

static void find_first_usable_image(const Class*cl,sqlite3_context*cxt) {
  int i;
  if(cl->cflags&CF_GROUP) return;
  if(!cl->images) return;
  for(i=0;i<cl->nimages;i++) {
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static void fn_cvalue(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  int a;
  if(sqlite3_value_type(*argv)==SQLITE_NULL) return;
  a=sqlite3_value_int(*argv)&0xFFFF;
  sqlite3_result_int64(cxt,a|((sqlite3_int64)TY_CLASS<<32));
}




























static void fn_modstate(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_result_int(cxt,SDL_GetModState());
}

static void fn_mvalue(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  int a;








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static void fn_cvalue(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  int a;
  if(sqlite3_value_type(*argv)==SQLITE_NULL) return;
  a=sqlite3_value_int(*argv)&0xFFFF;
  sqlite3_result_int64(cxt,a|((sqlite3_int64)TY_CLASS<<32));
}

static void fn_heromesh_type(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  static const char*const n[16]={
    [TY_NUMBER]="number",
    [TY_CLASS]="class",
    [TY_MESSAGE]="message",
    [TY_LEVELSTRING]="string",
    [TY_STRING]="string",
    [TY_SOUND]="sound",
    [TY_USOUND]="sound",
  };
  int i;
  if(sqlite3_value_type(*argv)!=SQLITE_INTEGER) return;
  i=sqlite3_value_int64(*argv)>>32;
  sqlite3_result_text(cxt,i<0||i>TY_MAXTYPE?"object":n[i]?:"???",-1,SQLITE_STATIC);
}

static void fn_load_level(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  const char*s;
  if(!main_options['x']) {
    sqlite3_result_error(cxt,"LOAD_LEVEL function requires -x switch",-1);
    return;
  }
  if(sqlite3_value_type(*argv)==SQLITE_NULL) return;
  s=load_level(sqlite3_value_int(*argv));
  if(s) sqlite3_result_error(cxt,s,-1);
}

static void fn_modstate(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_result_int(cxt,SDL_GetModState());
}

static void fn_mvalue(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  int a;
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    sqlite3_result_int(cxt,0);
    return;
  }
  a=sqlite3_value_int64(*argv)&0xFFFFFFFF;
  if(a>=nobjects || !objects[a] || (objects[a]->dir&IOF_DEAD)) return; // result is null if object does not exist
  sqlite3_result_int64(cxt,a|((sqlite3_int64)objects[a]->generation<<32));
}





static void fn_picture_size(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_result_int(cxt,picture_size);
}

static void fn_read_lump_at(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_int64 of=sqlite3_value_int64(argv[0]);








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    sqlite3_result_int(cxt,0);
    return;
  }
  a=sqlite3_value_int64(*argv)&0xFFFFFFFF;
  if(a>=nobjects || !objects[a] || (objects[a]->dir&IOF_DEAD)) return; // result is null if object does not exist
  sqlite3_result_int64(cxt,a|((sqlite3_int64)objects[a]->generation<<32));
}

static void fn_pfsize(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_result_int(cxt,*(Uint8*)sqlite3_user_data(cxt));
}

static void fn_picture_size(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_result_int(cxt,picture_size);
}

static void fn_read_lump_at(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_int64 of=sqlite3_value_int64(argv[0]);
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  .xColumn=vt1_classes_column,
  .xFilter=vt1_classes_filter,
  .xNext=vt1_classes_next,
  .xUpdate=vt1_classes_update,
);

static int vt1_objects_column(sqlite3_vtab_cursor*pcur,sqlite3_context*cxt,int n) {




  return SQLITE_OK;
}

static int vt1_objects_filter(sqlite3_vtab_cursor*pcur,int idxNum,const char*idxStr,int argc,sqlite3_value**argv) {
  return SQLITE_OK;
}










static int vt1_objects_index(sqlite3_vtab*vt,sqlite3_index_info*info) {



















  
  return SQLITE_OK;
}

static int vt1_objects_next(sqlite3_vtab_cursor*pcur) {




  return SQLITE_OK;
}





























































































































































































































































static int vt1_objects_update(sqlite3_vtab*vt,int argc,sqlite3_value**argv,sqlite3_int64*rowid) {
  if(!main_options['e']) return SQLITE_LOCKED;

  return SQLITE_OK;
}

Module(vt_objects,
  .xBestIndex=vt1_objects_index,
  .xColumn=vt1_objects_column,
  .xFilter=vt1_objects_filter,
  .xNext=vt1_objects_next,
  .xUpdate=vt1_objects_update,
);

void init_sql_functions(sqlite3_int64*ptr0,sqlite3_int64*ptr1) {
  sqlite3_create_function(userdb,"BASENAME",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_basename,0,0);
  sqlite3_create_function(userdb,"CLASS_DATA",2,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_class_data,0,0);


  sqlite3_create_function(userdb,"LEVEL_CACHEID",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,ptr0,fn_cacheid,0,0);

  sqlite3_create_function(userdb,"MODSTATE",0,SQLITE_UTF8,0,fn_modstate,0,0);
  sqlite3_create_function(userdb,"CVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_cvalue,0,0);
  sqlite3_create_function(userdb,"MVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_mvalue,0,0);
  sqlite3_create_function(userdb,"NVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_zero_extend,0,0);
  sqlite3_create_function(userdb,"OVALUE",1,SQLITE_UTF8,0,fn_ovalue,0,0);


  sqlite3_create_function(userdb,"PICTURE_SIZE",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_picture_size,0,0);
  sqlite3_create_function(userdb,"READ_LUMP_AT",2,SQLITE_UTF8,0,fn_read_lump_at,0,0);
  sqlite3_create_function(userdb,"RESOURCE",-1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_resource,0,0);
  sqlite3_create_function(userdb,"SIGN_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_sign_extend,0,0);
  sqlite3_create_function(userdb,"SOLUTION_CACHEID",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,ptr1,fn_cacheid,0,0);
  sqlite3_create_function(userdb,"ZERO_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_zero_extend,0,0);
  sqlite3_create_module(userdb,"CLASSES",&vt_classes,"CREATE TABLE `CLASSES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `EDITORHELP` TEXT, `HELP` TEXT,"
   "`INPUT` INT, `QUIZ` INT, `TRACEIN` INT, `TRACEOUT` INT, `GROUP` TEXT, `PLAYER` INT);");
  sqlite3_create_module(userdb,"MESSAGES",&vt_messages,"CREATE TABLE `MESSAGES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `TRACE` INT);");
  sqlite3_create_module(userdb,"OBJECTS",&vt_objects,"CREATE TABLE `OBJECTS`(`ID` INTEGER PRIMARY KEY, `CLASS` INT, `MISC1` INT, `MISC2` INT, `MISC3` INT,"
   "`IMAGE` INT, `DIR` INT, `X` INT, `Y` INT, `UP` INT, `DOWN` INT, `DENSITY` INT HIDDEN);");
}








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  .xColumn=vt1_classes_column,
  .xFilter=vt1_classes_filter,
  .xNext=vt1_classes_next,
  .xUpdate=vt1_classes_update,
);

static int vt1_objects_column(sqlite3_vtab_cursor*pcur,sqlite3_context*cxt,int n) {
  Cursor*cur=(void*)pcur;
  switch(n) {
    case 0: // ID
      sqlite3_result_int64(cxt,cur->rowid);
      break;

    case 1: // CLASS
      sqlite3_result_int(cxt,objects[cur->rowid]->class);
      break;

    case 2: // MISC1
      sqlite3_result_int64(cxt,ValueTo64(objects[cur->rowid]->misc1));
      break;
    case 3: // MISC2
      sqlite3_result_int64(cxt,ValueTo64(objects[cur->rowid]->misc2));
      break;
    case 4: // MISC3
      sqlite3_result_int64(cxt,ValueTo64(objects[cur->rowid]->misc3));
      break;
    case 5: // IMAGE
      sqlite3_result_int(cxt,objects[cur->rowid]->image);
      break;
    case 6: // DIR
      sqlite3_result_int(cxt,objects[cur->rowid]->dir&7);
      break;
    case 7: // X
      sqlite3_result_int(cxt,objects[cur->rowid]->x);
      break;
    case 8: // Y
      sqlite3_result_int(cxt,objects[cur->rowid]->y);
      break;
    case 9: // UP
      if(objects[cur->rowid]->up!=VOIDLINK) sqlite3_result_int64(cxt,objects[cur->rowid]->up);
      break;
    case 10: // DOWN
      if(objects[cur->rowid]->down!=VOIDLINK) sqlite3_result_int64(cxt,objects[cur->rowid]->down);
      break;
    case 11: // DENSITY
      sqlite3_result_int(cxt,objects[cur->rowid]->density);
      break;
  }
  return SQLITE_OK;
}

static int vt1_objects_next(sqlite3_vtab_cursor*pcur) {
  Cursor*cur=(void*)pcur;
  if(cur->unique) {
    eof:
    cur->eof=1;
    return SQLITE_OK;
  }
  again:
  if(cur->arg[0]&0x0008) {
    // Ordered by ID
    if(cur->arg[1] || !objects[cur->rowid]) {
      for(;;) {
        if(++cur->rowid>=nobjects) {
          cur->eof=1;
          break;
        }
        if(objects[cur->rowid]) break;
      }
    }
    cur->arg[1]=1;
  } else if((cur->arg[0]&0x0006) && !cur->arg[1]) {
    // Find top/bottom at location
    cur->arg[1]=1;
    atxy:
    cur->rowid=playfield[cur->arg[2]+cur->arg[3]*64-65];
    if(cur->rowid==VOIDLINK) goto nextxy;
    if(cur->arg[0]&0x0020) {
      while(cur->rowid!=VOIDLINK && objects[cur->rowid]->up!=VOIDLINK) cur->rowid=objects[cur->rowid]->up;
    }
  } else if(cur->arg[0]&0x0020) {
    // Go down
    cur->rowid=objects[cur->rowid]->down;
    if(cur->rowid==VOIDLINK) goto nextxy;
  } else if(cur->arg[0]&0x0040) {
    // Go up
    cur->rowid=objects[cur->rowid]->up;
    if(cur->rowid==VOIDLINK) {
      nextxy:
      if(cur->arg[0]&0x1000) {
        cur->arg[2]+=cur->arg[0]&0x0400?-1:1;
        if(cur->arg[0]&0x0002) goto eof;
        if(cur->arg[2]<1 || cur->arg[2]>pfwidth) {
          if(cur->arg[0]&0x0004) goto eof;
          cur->arg[2]=cur->arg[0]&0x0400?pfwidth:1;
          cur->arg[3]+=cur->arg[0]&0x4000?-1:1;
          if(cur->arg[3]<1 || cur->arg[3]>pfheight) goto eof;
        }
      } else {
        cur->arg[3]+=cur->arg[0]&0x4000?-1:1;
        if(cur->arg[0]&0x0004) goto eof;
        if(cur->arg[3]<1 || cur->arg[3]>pfheight) {
          if(cur->arg[0]&0x0002) goto eof;
          cur->arg[3]=cur->arg[0]&0x4000?pfheight:1;
          cur->arg[2]+=cur->arg[0]&0x0400?-1:1;
          if(cur->arg[2]<1 || cur->arg[2]>pfwidth) goto eof;
        }
      }
      goto atxy;
    }
  } else {
    // This shouldn't happen
    return SQLITE_INTERNAL;
  }
  if(!cur->eof && (objects[cur->rowid]->dir&IOF_DEAD)) goto again;
  return SQLITE_OK;
}

static int vt1_objects_filter(sqlite3_vtab_cursor*pcur,int idxNum,const char*idxStr,int argc,sqlite3_value**argv) {
  Cursor*cur=(void*)pcur;
  int i;
  Uint32 t;
  cur->rowid=-1;
  cur->unique=0;
  cur->eof=0;
  cur->arg[0]=idxNum;
  cur->arg[1]=0;
  cur->arg[2]=cur->arg[3]=1;
  if(!nobjects) {
    cur->eof=1;
    return SQLITE_OK;
  }
  if(idxStr) for(i=0;idxStr[i];i++) switch(idxStr[i]) {
    case 'a':
      cur->rowid=sqlite3_value_int64(argv[i]);
      cur->unique=1;
      break;
    case 'b':
      if(cur->rowid<sqlite3_value_int64(argv[i])) {
        cur->rowid=sqlite3_value_int64(argv[i]);
        cur->arg[1]=1;
        if(cur->unique) cur->eof=1;
      }
      break;
    case 'c':
      if(cur->rowid<=sqlite3_value_int64(argv[i])) {
        cur->rowid=sqlite3_value_int64(argv[i]);
        cur->arg[1]=0;
        if(cur->unique) cur->eof=1;
      }
      break;
    case 'd':
      cur->arg[2]=sqlite3_value_int(argv[i]);
      if(cur->arg[2]<1 || cur->arg[2]>64) cur->eof=1;
      break;
    case 'e':
      cur->arg[3]=sqlite3_value_int(argv[i]);
      if(cur->arg[2]<1 || cur->arg[2]>64) cur->eof=1;
      break;
    case 'f':
      if(sqlite3_value_type(argv[i])==SQLITE_NULL) {
        cur->arg[0]=idxNum&=~0x0010;
      } else {
        t=sqlite3_value_int64(argv[i]);
        if(t>=nobjects || t<0 || !objects[t]) {
          cur->eof=1;
          break;
        }
        cur->rowid=objects[t]->down;
        if(cur->rowid==VOIDLINK) cur->eof=1;
        cur->unique=1;
      }
      break;
    case 'g':
      if(sqlite3_value_type(argv[i])==SQLITE_NULL) {
        cur->arg[0]=idxNum&=~0x0010;
      } else {
        t=sqlite3_value_int64(argv[i]);
        if(t>=nobjects || t<0 || !objects[t]) {
          cur->eof=1;
          break;
        }
        cur->rowid=objects[t]->up;
        if(cur->rowid==VOIDLINK) cur->eof=1;
        cur->unique=1;
      }
      break;
  }
  if(cur->unique) {
    if(cur->rowid<0 || cur->rowid>=nobjects || !objects[cur->rowid]) cur->eof=1;
    return SQLITE_OK;
  }
  if(cur->eof) return SQLITE_OK;
  if(idxNum&0x0400) cur->arg[2]=pfwidth;
  if(idxNum&0x4000) cur->arg[3]=pfheight;
  if(cur->rowid==-1) cur->rowid=0;
  return vt1_objects_next(pcur);
}

static int vt1_objects_index(sqlite3_vtab*vt,sqlite3_index_info*info) {
  sqlite3_str*str=sqlite3_str_new(0);
  int arg=0;
  int i,j;
  info->estimatedCost=100000.0;
  for(i=0;i<info->nConstraint;i++) if(info->aConstraint[i].usable) {
    j=info->aConstraint[i].op;
    switch(info->aConstraint[i].iColumn) {
      case -1: case 0: // ID
        if(info->idxNum&0x0017) break;
        if(j==SQLITE_INDEX_CONSTRAINT_EQ || j==SQLITE_INDEX_CONSTRAINT_IS) {
          info->idxNum|=0x0001;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          info->idxFlags=SQLITE_INDEX_SCAN_UNIQUE;
          sqlite3_str_appendchar(str,1,'a');
          info->estimatedCost/=10000.0;
        } else if(j==SQLITE_INDEX_CONSTRAINT_GT || j==SQLITE_INDEX_CONSTRAINT_GE) {
          info->idxNum|=0x0008;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          sqlite3_str_appendchar(str,1,j==SQLITE_INDEX_CONSTRAINT_GT?'b':'c');
          info->estimatedCost/=1200.0;
        }
        break;
      case 7: // X
        if(info->idxNum&0x0013) break;
        if(j==SQLITE_INDEX_CONSTRAINT_EQ || j==SQLITE_INDEX_CONSTRAINT_IS) {
          info->idxNum|=0x0002;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          sqlite3_str_appendchar(str,1,'d');
          info->estimatedCost/=64.0;
        }
        break;
      case 8: // Y
        if(info->idxNum&0x0015) break;
        if(j==SQLITE_INDEX_CONSTRAINT_EQ || j==SQLITE_INDEX_CONSTRAINT_IS) {
          info->idxNum|=0x0004;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          sqlite3_str_appendchar(str,1,'e');
          info->estimatedCost/=64.0;
        }
        break;
      case 9: // UP
        if(info->idxNum&0x0019) break;
        if(j==SQLITE_INDEX_CONSTRAINT_IS && !(info->idxNum&0x000E)) {
          info->idxNum|=0x0010;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          sqlite3_str_appendchar(str,1,'f');
          info->estimatedCost/=80.0;
        }
        break;
      case 10: // DOWN
        if(info->idxNum&0x0019) break;
        if(j==SQLITE_INDEX_CONSTRAINT_IS && !(info->idxNum&0x000E)) {
          info->idxNum|=0x0010;
          info->aConstraintUsage[i].omit=1;
          info->aConstraintUsage[i].argvIndex=++arg;
          sqlite3_str_appendchar(str,1,'g');
          info->estimatedCost/=80.0;
        }
        break;
    }
  }
  if(info->nOrderBy==1) {
    if(info->aOrderBy->iColumn==0 && !info->aOrderBy->desc && !(info->idxNum&~0x0008)) info->orderByConsumed=1;
    if(info->aOrderBy->iColumn==-1 && !info->aOrderBy->desc && !(info->idxNum&~0x0008)) info->orderByConsumed=1;
    if(info->aOrderBy->iColumn==7 && !(info->idxNum&~0x0004)) info->orderByConsumed=1,info->idxNum|=info->aOrderBy->desc?0x0400:0x0800;
    if(info->aOrderBy->iColumn==8 && !(info->idxNum&~0x0002)) info->orderByConsumed=1,info->idxNum|=info->aOrderBy->desc?0x4000:0x8000;
    if(info->aOrderBy->iColumn==11 && info->idxNum==0x0006) info->orderByConsumed=1,info->idxNum|=info->aOrderBy->desc?0x0040:0x0020;
  } else if(info->nOrderBy==2 && !(info->idxNum&~0x0066)) {
    if(info->aOrderBy[0].iColumn==7 && info->aOrderBy[1].iColumn==8) {
      info->orderByConsumed=1;
      info->idxNum|=info->aOrderBy[0].desc?0x0400:0x0800;
      info->idxNum|=info->aOrderBy[1].desc?0x4000:0x8000;
    } else if(info->aOrderBy[0].iColumn==8 && info->aOrderBy[1].iColumn==7) {
      info->orderByConsumed=1;
      info->idxNum|=info->aOrderBy[0].desc?0x4000:0x8000;
      info->idxNum|=info->aOrderBy[1].desc?0x0400:0x0800;
      info->idxNum|=0x1000;
    }
  } else if(info->nOrderBy==3 && info->aOrderBy[2].iColumn==11 && !(info->idxNum&~0x0006)) {
    if(info->aOrderBy[0].iColumn==7 && info->aOrderBy[1].iColumn==8) {
      info->orderByConsumed=1;
      info->idxNum|=info->aOrderBy[0].desc?0x0400:0x0800;
      info->idxNum|=info->aOrderBy[1].desc?0x4000:0x8000;
      info->idxNum|=info->aOrderBy[2].desc?0x0040:0x0020;
    } else if(info->aOrderBy[0].iColumn==8 && info->aOrderBy[1].iColumn==7) {
      info->orderByConsumed=1;
      info->idxNum|=info->aOrderBy[0].desc?0x4000:0x8000;
      info->idxNum|=info->aOrderBy[1].desc?0x0400:0x0800;
      info->idxNum|=0x1000;
      info->idxNum|=info->aOrderBy[2].desc?0x0040:0x0020;
    }
  }
  if(info->orderByConsumed) info->estimatedCost-=0.5;
  switch(info->idxNum&0x0006) {
    case 0x0002: info->idxNum&=~0x1000; break;
    case 0x0004: info->idxNum|=0x1000; break;
  }
  if(!info->idxNum) info->idxNum=0x0008;
  if((info->idxNum&0x0006) && !(info->idxNum&0x0060)) info->idxNum|=0x0040;
  if((info->idxNum&0xCC00) && !(info->idxNum&0x0069)) info->idxNum|=0x0040;
  arg=sqlite3_str_errcode(str);
  info->idxStr=sqlite3_str_finish(str);
  info->needToFreeIdxStr=1;
  return arg;
}

static int vt1_objects_update(sqlite3_vtab*vt,int argc,sqlite3_value**argv,sqlite3_int64*rowid) {
  if(!main_options['e']) return SQLITE_LOCKED;
  
  return SQLITE_OK;
}

Module(vt_objects,
  .xBestIndex=vt1_objects_index,
  .xColumn=vt1_objects_column,
  .xFilter=vt1_objects_filter,
  .xNext=vt1_objects_next,
  .xUpdate=vt1_objects_update,
);

void init_sql_functions(sqlite3_int64*ptr0,sqlite3_int64*ptr1) {
  sqlite3_create_function(userdb,"BASENAME",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_basename,0,0);
  sqlite3_create_function(userdb,"CLASS_DATA",2,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_class_data,0,0);
  sqlite3_create_function(userdb,"CVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_cvalue,0,0);
  sqlite3_create_function(userdb,"HEROMESH_TYPE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_heromesh_type,0,0);
  sqlite3_create_function(userdb,"LEVEL_CACHEID",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,ptr0,fn_cacheid,0,0);
  sqlite3_create_function(userdb,"LOAD_LEVEL",1,SQLITE_UTF8,0,fn_load_level,0,0);
  sqlite3_create_function(userdb,"MODSTATE",0,SQLITE_UTF8,0,fn_modstate,0,0);

  sqlite3_create_function(userdb,"MVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_mvalue,0,0);
  sqlite3_create_function(userdb,"NVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_zero_extend,0,0);
  sqlite3_create_function(userdb,"OVALUE",1,SQLITE_UTF8,0,fn_ovalue,0,0);
  sqlite3_create_function(userdb,"PFHEIGHT",0,SQLITE_UTF8,&pfheight,fn_pfsize,0,0);
  sqlite3_create_function(userdb,"PFWIDTH",0,SQLITE_UTF8,&pfwidth,fn_pfsize,0,0);
  sqlite3_create_function(userdb,"PICTURE_SIZE",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_picture_size,0,0);
  sqlite3_create_function(userdb,"READ_LUMP_AT",2,SQLITE_UTF8,0,fn_read_lump_at,0,0);
  sqlite3_create_function(userdb,"RESOURCE",-1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_resource,0,0);
  sqlite3_create_function(userdb,"SIGN_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_sign_extend,0,0);
  sqlite3_create_function(userdb,"SOLUTION_CACHEID",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,ptr1,fn_cacheid,0,0);
  sqlite3_create_function(userdb,"ZERO_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_zero_extend,0,0);
  sqlite3_create_module(userdb,"CLASSES",&vt_classes,"CREATE TABLE `CLASSES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `EDITORHELP` TEXT, `HELP` TEXT,"
   "`INPUT` INT, `QUIZ` INT, `TRACEIN` INT, `TRACEOUT` INT, `GROUP` TEXT, `PLAYER` INT);");
  sqlite3_create_module(userdb,"MESSAGES",&vt_messages,"CREATE TABLE `MESSAGES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `TRACE` INT);");
  sqlite3_create_module(userdb,"OBJECTS",&vt_objects,"CREATE TABLE `OBJECTS`(`ID` INTEGER PRIMARY KEY, `CLASS` INT, `MISC1` INT, `MISC2` INT, `MISC3` INT,"
   "`IMAGE` INT, `DIR` INT, `X` INT, `Y` INT, `UP` INT, `DOWN` INT, `DENSITY` INT HIDDEN);");
}

Modified heromesh.h from [c2593fd5ae] to [bec75427a1]. 

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/*
  This file is part of Free Hero Mesh and is public domain.
*/

// == main ==

#define fatal(...) do{ fprintf(stderr,"FATAL: " __VA_ARGS__); exit(1); }while(0)
#define boolxrm(a,b) (*a=='1'||*a=='y'||*a=='t'||*a=='Y'||*a=='T'?1:*a=='0'||*a=='n'||*a=='f'||*a=='N'||*a=='F'?0:b)

#define TY_NUMBER 0
#define TY_CLASS 1
#define TY_MESSAGE 2
#define TY_SOUND 3
#define TY_USOUND 4
#define TY_STRING 5
#define TY_LEVELSTRING 6
#define TY_MAXTYPE 15


typedef struct {
  union {
    Sint32 s;
    Uint32 u;
  };
  Uint32 t; // Type 0-15, or a generation_number of an object
} Value;
#define UVALUE(x,y) ((Value){.u=x,.t=y})
#define SVALUE(x,y) ((Value){.s=x,.t=y})
#define NVALUE(x) SVALUE(x,TY_NUMBER)
#define CVALUE(x) UVALUE(x,TY_CLASS)
#define MVALUE(x) UVALUE(x,TY_MESSAGE)
#define ZVALUE(x) UVALUE(x,TY_STRING)
#define OVALUE(x) UVALUE(x,objects[x]->generation)


#define N_MESSAGES 23
extern const char*const standard_message_names[];
extern const char*const standard_sound_names[];
extern const char*const heromesh_key_names[256];

extern sqlite3*userdb;













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/*
  This file is part of Free Hero Mesh and is public domain.
*/

// == main ==

#define fatal(...) do{ fprintf(stderr,"FATAL: " __VA_ARGS__); exit(1); }while(0)
#define boolxrm(a,b) (*a=='1'||*a=='y'||*a=='t'||*a=='Y'||*a=='T'?1:*a=='0'||*a=='n'||*a=='f'||*a=='N'||*a=='F'?0:b)

#define TY_NUMBER 0
#define TY_CLASS 1
#define TY_MESSAGE 2
#define TY_LEVELSTRING 3
#define TY_STRING 4
#define TY_SOUND 5
#define TY_USOUND 6
#define TY_MAXTYPE 15
// The level file format requires type codes 0 to 3 to be as is; other codes may change.

typedef struct {
  union {
    Sint32 s;
    Uint32 u;
  };
  Uint32 t; // Type 0-15, or a generation_number of an object
} Value;
#define UVALUE(x,y) ((Value){.u=x,.t=y})
#define SVALUE(x,y) ((Value){.s=x,.t=y})
#define NVALUE(x) SVALUE(x,TY_NUMBER)
#define CVALUE(x) UVALUE(x,TY_CLASS)
#define MVALUE(x) UVALUE(x,TY_MESSAGE)
#define ZVALUE(x) UVALUE(x,TY_STRING)
#define OVALUE(x) UVALUE(x,objects[x]->generation)
#define ValueTo64(v) (((sqlite3_int64)((v).u))|(((sqlite3_int64)((v).t))<<32))

#define N_MESSAGES 23
extern const char*const standard_message_names[];
extern const char*const standard_sound_names[];
extern const char*const heromesh_key_names[256];

extern sqlite3*userdb;
︙︙
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0))
#else
#define StackProtection() 0
#endif

unsigned char*read_lump(int sol,int lvl,long*sz,sqlite3_value**us);
void write_lump(int sol,int lvl,long sz,const unsigned char*data);

void set_cursor(int id);

#define FIL_SOLUTION 1
#define FIL_LEVEL 0
#define LUMP_LEVEL_IDX (-1)
#define LUMP_CLASS_DEF (-2)









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0))
#else
#define StackProtection() 0
#endif

unsigned char*read_lump(int sol,int lvl,long*sz,sqlite3_value**us);
void write_lump(int sol,int lvl,long sz,const unsigned char*data);
const char*load_level(int lvl);
void set_cursor(int id);

#define FIL_SOLUTION 1
#define FIL_LEVEL 0
#define LUMP_LEVEL_IDX (-1)
#define LUMP_CLASS_DEF (-2)
︙︙

Modified main.c from [c418f63360] to [f785d8c807].

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  sqlite3_bind_int(st,2,lvl);
  sqlite3_bind_text(st,3,lvl==LUMP_CLASS_DEF?"CLASS.DEF":lvl==LUMP_LEVEL_IDX?"LEVEL.IDX":sol?".SOL":".LVL",-1,SQLITE_STATIC);
  sqlite3_bind_blob64(st,4,data,sz,0);
  while((e=sqlite3_step(st))==SQLITE_ROW);
  if(e!=SQLITE_DONE) fatal("SQL error (%d): %s\n",e,sqlite3_errmsg(userdb));
  sqlite3_finalize(st);
}


























































































































static void flush_usercache_1(int sol) {
  sqlite3_int64 uc_id=sol?solutionuc:leveluc;
  FILE*fp=sol?solutionfp:levelfp;
  int fd=fileno(fp);
  sqlite3_stmt*st;
  sqlite3_int64 of,of2;








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  sqlite3_bind_int(st,2,lvl);
  sqlite3_bind_text(st,3,lvl==LUMP_CLASS_DEF?"CLASS.DEF":lvl==LUMP_LEVEL_IDX?"LEVEL.IDX":sol?".SOL":".LVL",-1,SQLITE_STATIC);
  sqlite3_bind_blob64(st,4,data,sz,0);
  while((e=sqlite3_step(st))==SQLITE_ROW);
  if(e!=SQLITE_DONE) fatal("SQL error (%d): %s\n",e,sqlite3_errmsg(userdb));
  sqlite3_finalize(st);
}

const char*load_level(int lvl) {
  // Load level by ID. Returns null pointer if successful, or an error message if it failed.
  long sz=0;
  unsigned char*buf=lvl>=0?read_lump(FIL_LEVEL,lvl,&sz,0):0;
  unsigned char*p=buf;
  unsigned char*end=buf+sz;
  int i,n,x,y,z;
  Uint32 o;
  Uint32 mru[2];
  if(lvl<0) return "Invalid level ID";
  if(!buf) return "Cannot find level";
  annihilate();
  generation_number=TY_MAXTYPE+1;
  p+=4; // skip level version and level code for now
  pfwidth=(*p++&63)+1;
  pfheight=(*p++&63)+1;
  while(*p && p<end) p++; // skip text for now
  p++; // skip null terminator
  if(p==end) goto bad1;
  x=0;
  y=1;
  n=0;
  mru[0]=mru[1]=VOIDLINK;
  for(;;) {
    if(n) {
      o=objalloc(objects[*mru]->class);
      if(o==VOIDLINK) goto bad3;
      objects[o]->image=objects[*mru]->image;
      objects[o]->misc1=objects[*mru]->misc1;
      objects[o]->misc2=objects[*mru]->misc2;
      objects[o]->misc3=objects[*mru]->misc3;
      objects[o]->dir=objects[*mru]->dir;
      objects[o]->x=++x;
      objects[o]->y=y;
      if(x>pfwidth) goto bad2;
      pflink(o);
      --n;
    } else {
      if(p>=end) goto bad1;
      z=*p++;
      if(z==0xFF) break;
      if(z&0x20) x=*p++;
      if(z&0x10) y=*p++;
      if(z&0x40) x++;
      if(!x || !y || x>pfwidth || y>pfheight) goto bad2;
      if(z&0x80) {
        // MRU
        n=playfield[x+y*64-65]==VOIDLINK?0:1;
        if(mru[n]==VOIDLINK) goto bad1;
        o=objalloc(objects[mru[n]]->class);
        if(o==VOIDLINK) goto bad3;
        objects[o]->image=objects[mru[n]]->image;
        objects[o]->misc1=objects[mru[n]]->misc1;
        objects[o]->misc2=objects[mru[n]]->misc2;
        objects[o]->misc3=objects[mru[n]]->misc3;
        objects[o]->dir=objects[mru[n]]->dir;
        objects[o]->x=x;
        objects[o]->y=y;
        pflink(o);
        n=z&15;
      } else {
        // Not MRU
        n=playfield[x+y*64-65];
        n=n==VOIDLINK?0:objects[n]->down==VOIDLINK?1:2;
        i=*p++;
        i|=*p++<<8;
        o=objalloc(i&0x3FFF);
        if(o==VOIDLINK) goto bad3;
        if(n!=2) mru[n]=o;
        if(i&0x8000) {
          n=objects[o]->class;
          for(i=0;i<classes[n]->nimages;i++) {
            if(classes[n]->images[i]&0x8000) {
              objects[o]->image=i;
              break;
            }
          }
        } else {
          objects[o]->image=*p++;
        }
        objects[o]->dir=z&7;
        if(z&0x08) {
          z=*p++;
          if(z&0xC0) {
            // Misc1
            objects[o]->misc1=UVALUE(p[0]|(p[1]<<8),(z>>0)&3);
            p+=2;
          }
          if((z&0xC0)!=0x40) {
            // Misc2
            objects[o]->misc2=UVALUE(p[0]|(p[1]<<8),(z>>2)&3);
            p+=2;
          }
          if(!((z&0xC0)%0xC0)) {
            // Misc3
            objects[o]->misc1=UVALUE(p[0]|(p[1]<<8),(z>>4)&3);
            p+=2;
          }
        }
        objects[o]->x=x;
        objects[o]->y=y;
        pflink(o);
        n=0;
      }
    }
  }
  // skip level strings for now
  if(p>end) goto bad1;
  free(buf);
  return 0;
bad1:
  free(buf);
  return "Corrupted level data";
bad2:
  free(buf);
  return "Object out of bounds";
bad3:
  free(buf);
  return "Bad object in level";
}

static void flush_usercache_1(int sol) {
  sqlite3_int64 uc_id=sol?solutionuc:leveluc;
  FILE*fp=sol?solutionfp:levelfp;
  int fd=fileno(fp);
  sqlite3_stmt*st;
  sqlite3_int64 of,of2;
︙︙
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538

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559
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      exit(0);
      break;
  }
}

static void do_sql_mode(void) {
  int m=sqlite3_limit(userdb,SQLITE_LIMIT_SQL_LENGTH,-1);
  char*txt=malloc(m);
  int n=0;
  int c;
  int bail=1;
  if(m>1000000) m=1000000;
  txt=malloc(m+2);
  if(!txt) fatal("Allocation failed\n");
  for(;;) {
    c=fgetc(stdin);
    if(c=='\n' || c==EOF) {

      if(!n) continue;
      if(*txt=='#') {
        n=0;
      } else if(*txt=='.') {
        txt[n]=0;
        n=0;
        switch(txt[1]) {
          case 'b': bail=strtol(txt+2,0,0); break;
          case 'f': sqlite3_db_cacheflush(userdb); sqlite3_db_release_memory(userdb); break;
          case 'i': puts(sqlite3_db_filename(userdb,"main")); break;
          case 'q': exit(0); break;
          case 'u': flush_usercache(); break;
          case 'x': sqlite3_enable_load_extension(userdb,strtol(txt+2,0,0)); break;
          default: fatal("Invalid dot command .%c\n",txt[1]);
        }
      } else {
        txt[n]=0;
        if(sqlite3_complete(txt)) {
          n=sqlite3_exec(userdb,txt,test_sql_callback,0,0);
          if(bail && n) fatal("SQL error (%d): %s\n",n,sqlite3_errmsg(userdb));

          n=0;
        } else {
          txt[n++]='\n';
        }
      }
      if(c==EOF) break;
    } else {








|









>




















>








643
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680
681
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      exit(0);
      break;
  }
}

static void do_sql_mode(void) {
  int m=sqlite3_limit(userdb,SQLITE_LIMIT_SQL_LENGTH,-1);
  char*txt;
  int n=0;
  int c;
  int bail=1;
  if(m>1000000) m=1000000;
  txt=malloc(m+2);
  if(!txt) fatal("Allocation failed\n");
  for(;;) {
    c=fgetc(stdin);
    if(c=='\n' || c==EOF) {
      if(!n && c==EOF) break;
      if(!n) continue;
      if(*txt=='#') {
        n=0;
      } else if(*txt=='.') {
        txt[n]=0;
        n=0;
        switch(txt[1]) {
          case 'b': bail=strtol(txt+2,0,0); break;
          case 'f': sqlite3_db_cacheflush(userdb); sqlite3_db_release_memory(userdb); break;
          case 'i': puts(sqlite3_db_filename(userdb,"main")); break;
          case 'q': exit(0); break;
          case 'u': flush_usercache(); break;
          case 'x': sqlite3_enable_load_extension(userdb,strtol(txt+2,0,0)); break;
          default: fatal("Invalid dot command .%c\n",txt[1]);
        }
      } else {
        txt[n]=0;
        if(sqlite3_complete(txt)) {
          n=sqlite3_exec(userdb,txt,test_sql_callback,0,0);
          if(bail && n) fatal("SQL error (%d): %s\n",n,sqlite3_errmsg(userdb));
          else if(n) fprintf(stderr,"SQL error (%d): %s\n",n,sqlite3_errmsg(userdb));
          n=0;
        } else {
          txt[n++]='\n';
        }
      }
      if(c==EOF) break;
    } else {
︙︙
632
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639
640
641
642
643
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645
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647

  load_pictures();
  if(main_options['T']) {
    test_mode();
    return 0;
  }
  init_usercache();
  load_classes();



  if(main_options['x']) {
    fprintf(stderr,"Ready for executing SQL statements.\n");
    do_sql_mode();
    return 0;
  }
  optionquery[1]=Q_maxObjects;
  max_objects=strtoll(xrm_get_resource(resourcedb,optionquery,optionquery,2)?:"",0,0)?:0xFFFF0000L;
  return 0; // for(;;) { if(main_options['e']) run_editor(); else run_game(); }
}








>
>
>





<
<



755
756
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761
762
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764
765
766
767
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769


770
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  load_pictures();
  if(main_options['T']) {
    test_mode();
    return 0;
  }
  init_usercache();
  load_classes();
  optionquery[1]=Q_maxObjects;
  max_objects=strtoll(xrm_get_resource(resourcedb,optionquery,optionquery,2)?:"",0,0)?:0xFFFF0000L;
  annihilate();
  if(main_options['x']) {
    fprintf(stderr,"Ready for executing SQL statements.\n");
    do_sql_mode();
    return 0;
  }


  return 0; // for(;;) { if(main_options['e']) run_editor(); else run_game(); }
}

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