/*
===============
Cmd_Math_f

Compares two cvars, if true vstr the third, if false vstr the forth
===============
*/
void Cmd_Math_f( void ) {
  char	*v;
  char 	*v1;
  char 	*v2;
  char  *op;

  if (Cmd_Argc () == 3)
  {
    v = Cmd_Argv( 1 );
    op = Cmd_Argv( 2 );
    if ( !strcmp( op, "++" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) + 1 ) );
    }
    else if ( !strcmp( op, "--" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) - 1 ) );
    }
    else
    {
      Com_Printf ("math <variableToSet> = <variable1> <operator> <variable2>\nmath <variableToSet> <operator> <variable1>\nmath <variableToSet> ++\nmath <variableToSet> --\nvalid operators are + - * / \n");
      return;
    }
  }
  else if (Cmd_Argc () == 4)
  {
    v = Cmd_Argv( 1 );
    op = Cmd_Argv( 2 );
    v1 = Cmd_Argv( 3 );
    if ( !strcmp( op, "+" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) + Cvar_VariableIntegerValue( v1 ) ) );
    }
    else if ( !strcmp( op, "-" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) - Cvar_VariableIntegerValue( v1 ) ) );
    }
    else if ( !strcmp( op, "*" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) * Cvar_VariableIntegerValue( v1 ) ) );
    }
    else if ( !strcmp( op, "/" ) )
    {
      if ( ! ( Cvar_VariableIntegerValue( v1 ) == 0 ) )
      {
        Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v ) / Cvar_VariableIntegerValue( v1 ) ) );
      }
    }
    else
    {
      Com_Printf ("math <variableToSet> = <variable1> <operator> <variable2>\nmath <variableToSet> <operator> <variable1>\nmath <variableToSet> ++\nmath <variableToSet> --\nvalid operators are + - * / \n");
      return;
    }
  }
  else if (Cmd_Argc () == 6)
  {
    v = Cmd_Argv( 1 );
    v1 = Cmd_Argv( 3 );
    op = Cmd_Argv( 4 );
    v2 = Cmd_Argv( 5 );
    if ( !strcmp( op, "+" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v1 ) + Cvar_VariableIntegerValue( v2 ) ) );
    }
    else if ( !strcmp( op, "-" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v1 ) - Cvar_VariableIntegerValue( v2 ) ) );
    }
    else if ( !strcmp( op, "*" ) )
    {
      Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v1 ) * Cvar_VariableIntegerValue( v2 ) ) );
    }
    else if ( !strcmp( op, "/" ) )
    {
      if ( ! ( Cvar_VariableIntegerValue( v2 ) == 0 ) )
      {
        Cvar_SetValue( v, ( Cvar_VariableIntegerValue( v1 ) / Cvar_VariableIntegerValue( v2 ) ) );
      }
    }
    else
    {
      Com_Printf ("math <variableToSet> = <variable1> <operator> <variable2>\nmath <variableToSet> <operator> <variable1>\nmath <variableToSet> ++\nmath <variableToSet> --\nvalid operators are + - * / \n");
      return;
    }
  }
  else {
    Com_Printf ("math <variableToSet> = <variable1> <operator> <variable2>\nmath <variableToSet> <operator> <variable1>\nmath <variableToSet> ++\nmath <variableToSet> --\nvalid operators are + - * / \n");
    return;
  }
}