if (place_free(x, y)) { // если объект не находится в стене,
     image_angle += rotation; // поворачиваем объект
     if (!place_free(x, y)) { // если после этого объект застрял в стене,
         image_angle -= rotation; // отменяем поворот
     }
}

int main(int argc, char* argv[]) {
       // получаем дескриптор вывода консоли
       HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
       // обычный темный зеленый текст:
       SetConsoleTextAttribute(hStdOut,
           FOREGROUND_GREEN);
       printf("Green\n");
       // яркий зеленый текст:
       SetConsoleTextAttribute(hStdOut,
           FOREGROUND_GREEN | FOREGROUND_INTENSITY);
       printf("Bright green\n");
       // константы можно совмещать для смешивания цветов:
       SetConsoleTextAttribute(hStdOut,
           FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY);
       printf("Yellow\n");
       // есть константы и для фонов:
       SetConsoleTextAttribute(hStdOut,
           BACKGROUND_BLUE | BACKGROUND_INTENSITY | FOREGROUND_RED |
           FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY);
       printf("White on blue");
       // если \n записан с фоном, остаток строки будет с    
       // цветом этого фона, что может и не быть желанным
       SetConsoleTextAttribute(hStdOut,
           FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
       printf("\nNormal.\n");
       char s[1]; gets(s);
       return 0;
}

<Window x:Class="WpfTest.MainWindow"
          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
          Title="MainWindow" Height="212" Width="196">
      <Grid>
          <StackPanel Height="168" HorizontalAlignment="Center" Name="stackPanel1" VerticalAlignment="Center" Width="168" Grid.Row="0">
              <StackPanel Height="40" Name="stackPanel2" Width="160" HorizontalAlignment="Stretch" Orientation="Horizontal" Margin="0,4,0,0">
                  <Button Content="#" Height="32" Name="button1" Width="32" Margin="4" />
                  <Button Content="#" Height="32" Name="button2" Width="32" Margin="4" />
                  <Button Content="#" Height="32" Name="button3" Width="32" Margin="4" />
                  <Button Content="#" Height="32" Name="button4" Width="32" Margin="4" />
              </StackPanel>
              <StackPanel Height="40" Name="stackPanel3" Orientation="Horizontal" Width="160">
                  <Button Content="#" Height="32" Margin="4" Name="button5" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button6" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button7" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button8" Width="32" />
              </StackPanel>
              <StackPanel Height="40" Name="stackPanel4" Orientation="Horizontal" Width="160">
                  <Button Content="#" Height="32" Margin="4" Name="button9" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button10" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button11" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button12" Width="32" />
              </StackPanel>
              <StackPanel Height="40" Name="stackPanel5" Orientation="Horizontal" Width="160">
                  <Button Content="#" Height="32" Margin="4" Name="button13" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button14" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button15" Width="32" />
                  <Button Content="#" Height="32" Margin="4" Name="button16" Width="32" />
              </StackPanel>
          </StackPanel>
      </Grid>
</Window>

var e = document.createElement('div');
e.style.color = 'red';
e.innerText = 'I am DIV and your statement is incorrect.';
document.body.appendChild(e);