sowon issues

address deprecation warning

``` main.c:53:38: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes] SDL_Surface *load_png_file_as_surface() ^ void 1 warning generated. ```

lvnilesh

Delta time and frame rate capping

Accurate delta time and frame rate capping. It uses only SDL functions. Should be cross platform. I tested it on WLS and Windows.

JikoUnderscore

Fix bug where `parse_time` was parsing CLI flags on F5

1

Hi!!! I added a variable `float start_time` in `main()` to save the initial timer time, so there is no need to parse it again on F5. Also restarting with F5...

paoloose

Program exits on F5 trying to parse wrong flags

When restarting with F5, this for loop will try to `parse_time` all flags other than `-p` https://github.com/tsoding/sowon/blob/eb3a37c4dbd996e3c077a840b18852d4af25367f/main.c#L238-L253 So when running with `-e` or `clock` mode and hit `F5`, the application...

paoloose

Let ascending timer display zero seconds

I noticed that although `displayed_time` is initially set to zero, the timer shows 00:00:00 only for a split second before jumping to 00:00:01. Setting `displayed_time = -1.0f;` will ensure that...

guemax

Add escape key to quit

Just like as in the [tsoding/boomer tool](https://github.com/tsoding/boomer) a hit on the escape key will now close `sowon`. Earlier behavior, had to do mod+Shift+q in [i3-wm](https://i3wm.org/) to quit the app.

vishalpaudel