Free Hero Mesh

#if 0
gcc -s -O2 -o ~/bin/heromesh main.c picture.o smallxrm.o sqlite3.o `sdl-config --cflags --libs` -ldl -lpthread
gcc -s -O2 -o ~/bin/heromesh main.c picture.o bindings.o smallxrm.o sqlite3.o `sdl-config --cflags --libs` -ldl -lpthread
exit
#endif

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

#include "sqlite3.h"
#include "smallxrm.h"
#include "names.h"
#include "quarks.h"
#include "cursorshapes.h"
#include "heromesh.h"

typedef struct {
  char cmd;
  union {
    int n;
    sqlite3_stmt*stmt;
    const char*txt;
  };
} UserCommand;

#define MOD_SHIFT 1
#define MOD_CTRL 2
#define MOD_ALT 4
#define MOD_META 8
#define MOD_NUMLOCK 14
typedef struct {
  UserCommand m[16];
} KeyBinding;

static const char schema[]=
  "BEGIN;"
  "PRAGMA APPLICATION_ID(1296388936);"
  "PRAGMA RECURSIVE_TRIGGERS(1);"
  "CREATE TABLE IF NOT EXISTS `USERCACHEINDEX`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `TIME` INT);"
  "CREATE TEMPORARY TABLE `PICTURES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `OFFSET` INT);"
  "COMMIT;"

static const char*globalclassname;
static SDL_Cursor*cursor[77];
static FILE*levelfp;
static FILE*solutionfp;
static FILE*hamarc_fp;
static long hamarc_pos;
static char main_options[128];
static KeyBinding*editor_bindings[SDLK_LAST];
static KeyBinding*game_bindings[SDLK_LAST];
static KeyBinding*editor_mouse_bindings[4];
static KeyBinding*game_mouse_bindings[4];

static void hamarc_begin(FILE*fp,const char*name) {
  while(*name) fputc(*name++,fp);
  fwrite("\0\0\0\0",1,5,hamarc_fp=fp);
  hamarc_pos=ftell(fp);
}

  s=malloc(256);
  if(!s) fatal("Allocation failed\n");
  if(fscanf(fp," %255s",s)!=1) fatal("Unable to scan name of class set\n");
  globalclassname=s;
  return !*s;
}

static void set_key_binding(KeyBinding**pkb,int mod,const char*txt) {
  int i;
  KeyBinding*kb=*pkb;
  UserCommand*uc;
  if(!*txt) return;
  if(!kb) kb=*pkb=calloc(1,sizeof(KeyBinding));
  uc=kb->m+mod;
  switch(*txt) {
    case '^': // Miscellaneous
      uc->cmd='^';
      uc->n=txt[1];
      break;
    case '=': case '-': case '+': // Restart, rewind, advance
      uc->cmd=*txt;
      uc->n=strtol(txt+1,0,0);
      break;
    case '\'': // Input move
      uc->cmd='\'';
      for(i=1;i<256;i++) if(heromesh_key_names[i] && !strcmp(txt+1,heromesh_key_names[i])) {
        uc->n=i;
        return;
      }
      fatal("Error in key binding:  %s\nInvalid Hero Mesh key name\n",txt);
      break;
    case '!': // System command
      uc->cmd='!';
      uc->txt=txt+1;
      break;
    case 'A' ... 'Z': case 'a' ... 'z': // Execute SQL statement
      uc->cmd='s';
      if(i=sqlite3_prepare_v3(userdb,txt+1,-1,SQLITE_PREPARE_PERSISTENT,&uc->stmt,0)) fatal("Error in key binding:  %s\n%s\n",txt,sqlite3_errmsg(userdb));
      break;
    default:
      fatal("Error in key binding:  %s\nUnrecognized character\n",txt);
  }
}

#define SetKeyBinding(n,m) do { \
  optionquery[1]=Q_editKey; \
  if(s=xrm_get_resource(resourcedb,optionquery,optionquery,n)) set_key_binding(editor_bindings+quark_to_key[q-FirstKeyQuark],m,s); \
  optionquery[1]=Q_gameKey; \
  if(s=xrm_get_resource(resourcedb,optionquery,optionquery,n)) set_key_binding(game_bindings+quark_to_key[q-FirstKeyQuark],m,s); \
} while(0)
#define SetMouseBinding(o,n,m) do { \
  optionquery[1]=Q_editClick; \
  if(s=xrm_get_resource(resourcedb,optionquery,optionquery,n)) set_key_binding(editor_mouse_bindings+o,m,s); \
  optionquery[1]=Q_gameClick; \
  if(s=xrm_get_resource(resourcedb,optionquery,optionquery,n)) set_key_binding(game_mouse_bindings+o,m,s); \
} while(0)
static void load_key_bindings(void) {
  xrm_quark q;
  const char*s;
  for(q=FirstKeyQuark;q<=LastKeyQuark;q++) {
    optionquery[2]=optionquery[3]=optionquery[4]=q;
    SetKeyBinding(3,0);
    optionquery[2]=Q_shift;
    SetKeyBinding(4,MOD_SHIFT);
    optionquery[2]=Q_ctrl;
    SetKeyBinding(4,MOD_CTRL);
    optionquery[2]=Q_alt;
    SetKeyBinding(4,MOD_ALT);
    optionquery[2]=Q_meta;
    SetKeyBinding(4,MOD_META);
    optionquery[2]=Q_numLock;
    SetKeyBinding(4,MOD_NUMLOCK);
    optionquery[3]=Q_shift;
    SetKeyBinding(5,MOD_NUMLOCK|MOD_SHIFT);
#if 0
    optionquery[2]=Q_alt;
    SetKeyBinding(5,MOD_ALT|MOD_SHIFT);
    optionquery[2]=Q_ctrl;
    SetKeyBinding(5,MOD_CTRL|MOD_SHIFT);
    optionquery[2]=Q_meta;
    SetKeyBinding(5,MOD_META|MOD_SHIFT);
#endif
  }
  optionquery[2]=optionquery[3]=Q_left;
  SetMouseBinding(SDL_BUTTON_LEFT,3,0);
  optionquery[2]=Q_shift;
  SetMouseBinding(SDL_BUTTON_LEFT,4,MOD_SHIFT);
  optionquery[2]=Q_ctrl;
  SetMouseBinding(SDL_BUTTON_LEFT,4,MOD_CTRL);
  optionquery[2]=Q_alt;
  SetMouseBinding(SDL_BUTTON_LEFT,4,MOD_ALT);
  optionquery[2]=Q_meta;
  SetMouseBinding(SDL_BUTTON_LEFT,4,MOD_META);
  optionquery[2]=optionquery[3]=Q_middle;
  SetMouseBinding(SDL_BUTTON_MIDDLE,3,0);
  optionquery[2]=Q_shift;
  SetMouseBinding(SDL_BUTTON_MIDDLE,4,MOD_SHIFT);
  optionquery[2]=Q_ctrl;
  SetMouseBinding(SDL_BUTTON_MIDDLE,4,MOD_CTRL);
  optionquery[2]=Q_alt;
  SetMouseBinding(SDL_BUTTON_MIDDLE,4,MOD_ALT);
  optionquery[2]=Q_meta;
  SetMouseBinding(SDL_BUTTON_MIDDLE,4,MOD_META);
  optionquery[2]=optionquery[3]=Q_right;
  SetMouseBinding(SDL_BUTTON_RIGHT,3,0);
  optionquery[2]=Q_shift;
  SetMouseBinding(SDL_BUTTON_RIGHT,4,MOD_SHIFT);
  optionquery[2]=Q_ctrl;
  SetMouseBinding(SDL_BUTTON_RIGHT,4,MOD_CTRL);
  optionquery[2]=Q_alt;
  SetMouseBinding(SDL_BUTTON_RIGHT,4,MOD_ALT);
  optionquery[2]=Q_meta;
  SetMouseBinding(SDL_BUTTON_RIGHT,4,MOD_META);
}

static int test_sql_callback(void*usr,int argc,char**argv,char**name) {
  int i;
  if(argc) printf("%s",*argv);
  for(i=1;i<argc;i++) printf("|%s",argv[i]);
  putchar('\n');
  return 0;
}

static void test_mode(void) {
  Uint32 n=0;
  SDLKey k;
  SDL_Event ev;
  char buf[32];
  const UserCommand*uc;
  set_cursor(XC_tcross);
  SDL_LockSurface(screen);
  draw_text(0,0,"Hello, World!",0xF0,0xFF);
  SDL_UnlockSurface(screen);
  SDL_Flip(screen);
  while(SDL_WaitEvent(&ev)) switch(ev.type) {
    case SDL_KEYDOWN:

          snprintf(buf,30,"%u",n);
          SDL_WM_SetCaption(buf,buf);
          break;
        case SDLK_c:
          SDL_FillRect(screen,0,n);
          SDL_Flip(screen);
          break;
        case SDLK_e:
          n=1;
          goto keytest;
        case SDLK_g:
          n=0;
          goto keytest;
        case SDLK_p:
          sqlite3_exec(userdb,"SELECT * FROM `PICTURES`;",test_sql_callback,0,0);
          break;
        case SDLK_q:
          exit(0);
          break;
      }
      break;
    case SDL_MOUSEBUTTONDOWN:
      draw_picture(ev.button.x,ev.button.y,n);
      SDL_Flip(screen);
      break;
    case SDL_QUIT:
      exit(0);
      break;
  }
  fatal("An error occurred waiting for events.\n");
keytest:
  SDL_FillRect(screen,0,0xF0);
  SDL_LockSurface(screen);
  draw_text(1,5,n?"Edit Key":"Game Key",0xF1,0xF7);
  SDL_UnlockSurface(screen);
  SDL_EnableUNICODE(1);
  SDL_Flip(screen);
  set_cursor(XC_arrow);
  while(SDL_WaitEvent(&ev)) switch(ev.type) {
    case SDL_KEYDOWN:
      printf("[%d %d %d %d] ",ev.key.keysym.scancode,ev.key.keysym.sym,ev.key.keysym.mod,ev.key.keysym.unicode);
      goto bindingtest;
    case SDL_MOUSEBUTTONDOWN:
      printf("[%d %d %d] ",ev.button.x,ev.button.y,ev.button.button);
    bindingtest:
      uc=find_key_binding(&ev,n);
      switch(uc->cmd) {
        case 0: printf("<Unbound>\n"); break;
        case '^': printf("<Misc> %c\n",uc->n); break;
        case '=': printf("<Reset> %d\n",uc->n); break;
        case '-': printf("<Rewind> %d\n",uc->n); break;
        case '+': printf("<Advance> %d\n",uc->n); break;
        case '\'': printf("<Play> %s (%d)\n",heromesh_key_names[uc->n],uc->n); break;
        case '!': printf("<System> %s",uc->txt); break;
        case 's': printf("<SQL> %s",sqlite3_sql(uc->stmt)); break;
        default: printf("<Unknown>\n");
}

      }
      break;
    case SDL_QUIT:
      exit(0);
      break;
  }
}

int main(int argc,char**argv) {
  int optind=1;
  fprintf(stderr,"FREE HERO MESH\n");
  while(argc>optind && argv[optind][0]=='-') {
    int i;
    const char*s=argv[optind++];
    if(s[1]=='-' && !s[2]) break;
    for(i=1;s[i];i++) main_options[s[i]&127]=1;
  }
  if(argc<=optind) fatal("usage: %s [switches] [--] basename [options...]\n",argc?argv[0]:"heromesh");

    globalclassname=strrchr(basefilename,'/');
    globalclassname=globalclassname?globalclassname+1:basefilename;
  }
  load_options();
  if(argc>optind) read_options(argc-optind,argv+optind);
  *optionquery=xrm_make_quark(globalclassname,0)?:xrm_anyq;
  init_sql();
  load_key_bindings();
  init_screen();
  load_pictures();
  if(main_options['T']) {
    test_mode();
    return 0;
  }
  
  return 0;
}