public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
if(dialogid==1 && response==1)
{
 switch(listitem)
 {
  case 0:
  {
   if (GetPlayerMoney(playerid) < 12500)
   return SendClientMessage(playerid, 0x00FFFFAA, "You don't have enough cash to buy this Weapon.");
   GivePlayerWeapon(playerid, 24, 0x7FFFFFFF);
   GivePlayerMoney(playerid, -12500);
   return 1;
  }
  case 1:
  {
   if (GetPlayerMoney(playerid) < 15000)
   return SendClientMessage(playerid, 0x00FFFFAA, "You don't have enough cash to buy this Weapon.");
   GivePlayerWeapon(playerid, 27, 0x7FFFFFFF);
   GivePlayerMoney(playerid, -15000);
   return 1;
  }
  case 2:
  {
   if (GetPlayerMoney(playerid) < 20000)
   return SendClientMessage(playerid, 0x00FFFFAA, "You don't have enough cash to buy this Weapon.");
   GivePlayerWeapon(playerid, 31, 0x7FFFFFFF);
   GivePlayerMoney(playerid, -20000);
   return 1;
  }
  case 3:
  {
   if (GetPlayerMoney(playerid) < 10000)
   return SendClientMessage(playerid, 0x00FFFFAA, "You don't have enough cash to buy this Weapon.");
   SetPlayerArmour(playerid, 100);
   GivePlayerMoney(playerid, -10000);
   return 1;
  }
 }
 return 0;
}

plugins nativechecker streamer