Game ENGine for Rust Programming Language
Home Page: https://geng.kuviman.com
License: MIT License
Game ENGine for Rust Programming Language
You can see examples in examples directory. You can also see them in action on the website.
The engine is used by me and friends to mostly make little game jam games. You can check out some on my itch page.
Make an example of using multiplayer features of the engine
Would be nice to have Color::from_hsv(h, s, v) and getting hsv from rgb too, either with Color::to_hsv or separate methods for each component (hue, saturation, `
Or, maybe it should be another struct HSVColor<ColorComponent> { h, s, v, a } with From/Into<Color>
Alternative names: HSV / HSL / HSB (hue, saturation, value / lightness / brightness)
Segment should contain endpoints and width, and be renderable
So that old code does not break
Chain is similar to Segment, but contains a vector of points
Stack trace:
[ERROR batbox::logger] panicked at 'assertion failed: location >= 0', /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/ugli-0.9.0/src/program.rs:72:13
[ERROR batbox::logger] 0: batbox::logger::init_with::{{closure}}
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/batbox-0.9.0/src/logger.rs:63:24
1: std::panicking::rust_panic_with_hook
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:702:17
2: std::panicking::begin_panic_handler::{{closure}}
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:586:13
3: std::sys_common::backtrace::__rust_end_short_backtrace
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:138:18
4: rust_begin_unwind
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:584:5
5: core::panicking::panic_fmt
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/panicking.rs:142:14
6: core::panicking::panic
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/panicking.rs:48:5
7: ugli::program::Program::new
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/ugli-0.9.0/src/program.rs:72:13
8: geng::shader_lib::ShaderLib::compile
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/shader_lib/mod.rs:77:12
9: <ugli::program::Program as geng::asset::LoadAsset>::load::{{closure}}
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/asset/mod.rs:37:16
10: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/mod.rs:91:19
11: <core::pin::Pin<P> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/future.rs:124:9
12: <alloc::rc::Rc<T> as geng::asset::LoadAsset>::load::{{closure}}
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/asset/mod.rs:26:48
13: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/mod.rs:91:19
14: <core::pin::Pin<P> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/future.rs:124:9
15: <arena_of_ideas::assets::Shaders as geng::asset::LoadAsset>::load::{{closure}}
at src/assets.rs:368:72
16: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/mod.rs:91:19
17: <core::pin::Pin<P> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/future.rs:124:9
18: <futures_util::future::maybe_done::MaybeDone<Fut> as core::future::future::Future>::poll
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.21/src/future/maybe_done.rs:95:38
19: <arena_of_ideas::assets::Assets as geng::asset::LoadAsset>::load::{{closure}}::{{closure}}
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.21/src/async_await/join_mod.rs:95:13
20: <futures_util::future::poll_fn::PollFn<F> as core::future::future::Future>::poll
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.21/src/future/poll_fn.rs:56:9
21: <arena_of_ideas::assets::Assets as geng::asset::LoadAsset>::load::{{closure}}
at src/assets.rs:47:10
22: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/mod.rs:91:19
23: <core::pin::Pin<P> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/future.rs:124:9
24: arena_of_ideas::main::{{closure}}
at src/main.rs:210:90
25: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/future/mod.rs:91:19
26: <geng::loading_screen::LoadingScreen<T,L,G> as geng::state::State>::transition
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/loading_screen/mod.rs:65:17
27: <geng::state::manager::StateManager as geng::state::State>::update
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/state/manager.rs:30:39
28: <geng::debug_overlay::DebugOverlay<T> as geng::state::State>::update
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/debug_overlay/mod.rs:37:9
29: geng::context::run::RunState<T>::update
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/context.rs:151:13
30: geng::context::run::{{closure}}
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/context.rs:193:13
31: geng::context::run
at /home/nertsal/.cargo/registry/src/github.com-1ecc6299db9ec823/geng-0.9.0/src/context.rs:230:17
32: arena_of_ideas::main
at src/main.rs:198:5
33: core::ops::function::FnOnce::call_once
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/ops/function.rs:248:5
34: std::sys_common::backtrace::__rust_begin_short_backtrace
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:122:18
35: std::rt::lang_start::{{closure}}
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/rt.rs:145:18
36: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/ops/function.rs:280:13
std::panicking::try::do_call
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:492:40
std::panicking::try
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:456:19
std::panic::catch_unwind
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panic.rs:137:14
std::rt::lang_start_internal::{{closure}}
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/rt.rs:128:48
std::panicking::try::do_call
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:492:40
std::panicking::try
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:456:19
std::panic::catch_unwind
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panic.rs:137:14
std::rt::lang_start_internal
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/rt.rs:128:20
37: std::rt::lang_start
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/rt.rs:144:17
38: main
39: <unknown>
40: __libc_start_main
41: _start
at /build/glibc/src/glibc/csu/../sysdeps/x86_64/start.S:115
GitHub now supports composite actions so we can provide an action for easy building and releasing without copying the boilerplate
Make an example with a moving camera
Make a new example of some game, for example, Pong, Asteroids, Breakout, etc.
So loading geng::Sound via geng::asset::Load::load() is not possible
Methods in geng::State currently have no documentation. Even though methods like update, draw, handle_input have a straightforward meaning, the purpose of the method transition is no exactly obvious.
Make an example showing how to use assets
There have not been new releases for a long time, but working with a git dependency is not very convenient, especially when building libraries that depend on the engine.
Here's a list of things that need to be done before the release:
clippy::uninit_assumed_init in impl VertexDataVisitor for VDC (creating a sample to get offsets for fields)
I want to draw a circle/texture/etc with a different color depending on some number (i.e. health). I would expect it to be just as with regular numbers:
start_color + (end_color - start_color) * some_fractionMaybe there should be a method Color::interpolate(start, end, fraction) that does exactly that and asserts that fraction is in range 0..=1 to ensure the result will actually be in between the two colors.
An ability to construct and draw different curves (i.e. Parabolic, Bezier, Circle Arc, Cardinal Spline)
Show how to build for web.
Serializing an R32 in ron surrounds the float value with parentheses, e.g. "(1.0)". However, trying to deserialize that string fails with an error.
Make an example using several states (i.e. menu, game)
Make it possible to add outline for text render with parameters like thickness and color.
Maybe options to extend outline in different directions: inner, outer and center
Using geng flake takes ages on the first run. It downloads 1121 MiB. Maybe we should exclude some stuff like android emulator by default?
Converting &[T] to &[u8] is UB without #[repr(C)]
Should use smth like bytemuck
There is a basic web demo with all the examples now at https://geng.kuviman.com/
Better design would be nice
Trying to fit an object with 0 with causes panic in FitTarget2d::make_fit().
How to reproduce:
draw_2d::Text::unit(
self.geng.default_font().clone(),
"".to_owned(), // Empty string causes width to be 0
Color::WHITE,
)
.fit_into(AABB::point(vec2(0.4204495, 0.6355353)).extend_uniform(2.0))
.draw_2d(
&self.geng,
framebuffer,
&geng::Camera2d {
center: Vec2::ZERO,
rotation: 0.0,
fov: 10.0,
},
);
WUT
When the types in Rust and shader mismatch, the program panics with the message: [ERROR] panicked at 'GL error: InvalidOperation'
Could the error be improved in any way?
Make loading fonts possible via Assets
Make an example showing how to make ui
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