static void check_variables()

in cores/pce/libretro.cpp [1289:1529]
187 lines of code
73 McCabe index (conditional complexity)

static void check_variables(void)
{
   struct retro_variable var = {0};

   var.key = "pce_fast_cdimagecache";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      bool cdimage_cache = true;

      if (strcmp(var.value, "enabled") == 0)
         cdimage_cache = true;
      else if (strcmp(var.value, "disabled") == 0)
         cdimage_cache = false;

      if (cdimage_cache != old_cdimagecache)
         old_cdimagecache = cdimage_cache;
   }

   var.key = "pce_fast_cdbios";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "System Card 3") == 0)
         setting_pce_fast_cdbios = "syscard3.pce";
      else if (strcmp(var.value, "System Card 2") == 0)
         setting_pce_fast_cdbios = "syscard2.pce";
      else if (strcmp(var.value, "System Card 1") == 0)
         setting_pce_fast_cdbios = "syscard1.pce";
      else if (strcmp(var.value, "Games Express") == 0)
         setting_pce_fast_cdbios = "gexpress.pce";
   }

   var.key = "pce_nospritelimit";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "disabled") == 0)
         setting_pce_fast_nospritelimit = 0;
      else if (strcmp(var.value, "enabled") == 0)
         setting_pce_fast_nospritelimit = 1;
   }
   
   var.key = "pce_ocmultiplier";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      setting_pce_overclocked = atoi(var.value);
   }
   	
	var.key = "pce_hoverscan";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      setting_pce_hoverscan = atoi(var.value);
   }
	
   var.key = "pce_initial_scanline";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      setting_initial_scanline = atoi(var.value);
   }

   var.key = "pce_last_scanline";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      setting_last_scanline = atoi(var.value);
   }

   bool do_cdsettings = false;
   var.key = "pce_cddavolume";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      do_cdsettings = true;
      setting_pce_fast_cddavolume = atoi(var.value);
   }

   var.key = "pce_adpcmvolume";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      do_cdsettings = true;
      setting_pce_fast_adpcmvolume = atoi(var.value);
   }

   var.key = "pce_cdpsgvolume";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      do_cdsettings = true;
      setting_pce_fast_cdpsgvolume = atoi(var.value);
   }

   var.key = "pce_cdspeed";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      do_cdsettings = true;
      setting_pce_fast_cdspeed = atoi(var.value);
   }

   if (do_cdsettings)
   {
      PCECD_Settings settings = {0};
      settings.CDDA_Volume = (double)setting_pce_fast_cddavolume / 100;
      settings.CD_Speed = setting_pce_fast_cdspeed;
      settings.ADPCM_Volume = (double)setting_pce_fast_adpcmvolume / 100;

      if (PCECD_SetSettings(&settings) && log_cb)
         log_cb(RETRO_LOG_INFO, "PCE CD Audio settings changed.\n");
   }

   // Set Turbo_Toggling
   var.key = "Turbo_Toggling";

   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
         Turbo_Toggling = 1;
      else
         Turbo_Toggling = 0;
   }

   // Set TURBO_DELAY 
   var.key = "pce_Turbo_Delay";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "Fast") == 0)
      Turbo_Delay = 3;
      else if (strcmp(var.value, "Medium") == 0)
      Turbo_Delay = 8;
      else if (strcmp(var.value, "Slow") == 0)
      Turbo_Delay = 15;
   }

   // Enable turbo for each player's I+II buttons   
   var.key = "pce_p0_turbo_I_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[0][0] = 1;
	  else
		turbo_enable[0][0] = 0;
   }
   
   var.key = "pce_p0_turbo_II_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[0][1] = 1;
	  else
		turbo_enable[0][1] = 0;
   }
   
   var.key = "pce_p1_turbo_I_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[1][0] = 1;
  	  else
		turbo_enable[1][0] = 0;
   }
   
   var.key = "pce_p1_turbo_II_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[1][1] = 1;
	  else
		turbo_enable[1][1] = 0;
   }
   
   var.key = "pce_p2_turbo_I_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[2][0] = 1;
	  else
		turbo_enable[2][0] = 0;
   }
   
   var.key = "pce_p2_turbo_II_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[2][1] = 1;
	  else
		turbo_enable[2][1] = 0;
   }
   
      var.key = "pce_p3_turbo_I_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[3][0] = 1;
	  else
		turbo_enable[3][0] = 0;
   }
   
   var.key = "pce_p3_turbo_II_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[3][1] = 1;
	  else
		turbo_enable[3][1] = 0;
   }
   
   var.key = "pce_p4_turbo_I_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[4][0] = 1;
	  else
		turbo_enable[4][0] = 0;
   }
   
   var.key = "pce_p4_turbo_II_enable";
   
   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
   {
      if (strcmp(var.value, "enabled") == 0)
		turbo_enable[4][1] = 1;
	  else
		turbo_enable[4][1] = 0;
   }
	  
}