ggdt/examples/balls_v2
Gered c7d6bd8aef revert app_root_dir usages in examples. re-org example asset files
ultimately, cargo workspaces are kind of weird. you can do things like
`cargo run` from the top-level cargo.toml file and run an individual
sub-module via `--bin`, or you can go to that sub-module's directory
where it's own cargo.toml is, and `cargo run` directly from there.

the current working directory will be different in each case, and this
difference can be very annoying when you want to do seemingly-logical
things like organize sub-module "asset" files (e.g. images, and other
types of data files that aren't code) within that sub-module's
directory. in this case, how do you write code in that sub-module that
can load those asset files in a way that will work in BOTH of the
aforementioned scenarios for `cargo run`?

you can't really! some people use the `CARGO_MANIFEST_DIR` environment
variable that cargo sets when running any given cargo module, but this
is only a valid method for obtaining the module's root directory when
running from a cargo command ... which you won't be doing when running
within a debugger! likely you or your IDE invoked the debugger process
against the already built executable directly, so `CARGO_MANIFEST_DIR`
will not be set and you're back to square one!

super annoying!

as such, i am now giving up and am just doing what it seems like most
other cargo projects that utilize workspaces do ... place all the
assets for all sub-modules together in the same directory, relative
to the workspace root.

why go with this approach?

because it works under the most common scenarios (but NOT all!):
- running via `cargo run --bin` from the workspace root
- debugging via gdb/lldb etc using the workspace root as the cwd

these seem to be the most common ways to do each type of task from
any rust-equipped editor/IDE that i've seen so far.
2024-09-05 22:35:20 -04:00
..
src revert app_root_dir usages in examples. re-org example asset files 2024-09-05 22:35:20 -04:00
Cargo.toml use workspace.dependencies for common dependency versions 2024-07-21 16:07:33 -04:00
README.md rename from libretrogd to ggdt 2023-03-02 16:11:59 -05:00
screenshot.png add READMEs and screenshots for examples 2022-05-23 17:45:22 -04:00

ggdt - 'Flying Balls' Demo v2

Extension of the original 'Flying Balls' demo found in this repository under /examples/balls. This one is re-done with some more effects, but with the major difference being utilization of the entity, events, and states support from ggdt.

Simply do cargo run from this directory to try it out.