I'm trying to port this doryen-rs example to bracket-lib. A few versions ago I was able to do it with this code :

self.cur_font = ctx.register_font(font).unwrap();
ctx.consoles[ctx.active_console].font_index = self.cur_font;

but the consoles field is now private (which is a good thing). Is there a way to change the font index of a console or do I have to register a new console, but in that case how can I get rid of the previous console ?

I'm using version 0.5.15 and is calling Rltk::set_bg with Rltk::mouse_pos() as position. At first this follows the mouse pointer, but after I resize the window the mouse_pos position is no longer translated to the right position in console coordinate space.

Looks like on Mac my game is running the main loop as fast as it can. What can I do about it? How can I help to diagnose it? Ideally, it should only redraw in response to keyboard and, optionally, mouse events.

I have this in my cargo.lock:

version = "0.8.1"
source = "git+https://github.com/thebracket/bracket-lib.git#2c52c1b96de26dac4d669657937167cf25afc46f"
dependencies = [
...
 "ctrlc",

When I try to build for wasm, I get:

$ cargo build --release --target wasm32-unknown-unknown
   Compiling ctrlc v3.1.7
   Compiling paste v1.0.4
   Compiling downcast-rs v1.2.0
   Compiling ucd-trie v0.1.3
   Compiling unicode-segmentation v1.7.1
   Compiling proc-macro2 v1.0.24
   Compiling syn v1.0.60
   Compiling log v0.4.14
error[E0432]: unresolved import `platform::Signal`
  --> /Users/vsergiienko/.cargo/registry/src/github.com-1ecc6299db9ec823/ctrlc-3.1.7/src/lib.rs:53:9
   |
53 | pub use platform::Signal;
   |         ^^^^^^^^^^^^^^^^ no `Signal` in `platform`

error[E0412]: cannot find type `Error` in module `platform`
  --> /Users/vsergiienko/.cargo/registry/src/github.com-1ecc6299db9ec823/ctrlc-3.1.7/src/error.rs:25:23
   |
25 | impl From<::platform::Error> for Error {
   |                       ^^^^^ not found in `platform`
   |
help: consider importing one of these items
   |
1  | use Error;
   |
1  | use error::fmt::Error;
   |
1  | use std::error::Error;
   |
1  | use std::io::Error;
   |

...and a bunch of other errors.

MacOS,

$ rustc --version
rustc 1.50.0 (cb75ad5db 2021-02-10)

If I try to run simple example (using default OpenGL renderer) and try to resize game window, it acts weird. With original size render area take 100% of the window. If I shrink window vertically, render area shrinks non in proportion, leaving some of the window blank. On the other hand, if I resize window to be larger, drawing area doesn't fit into window. Same happens to horizontal scaling. I think is caused by retina display on my laptop, as I've seen other issues in tracker related to hdpi display. Here's an example of drawing 80x50 red area and resizing a window:

Source code for example:

use bracket_lib::prelude::*;
struct State {
}

impl GameState for State {
    fn tick(&mut self, ctx: &mut BTerm) {
        ctx.cls();
        ctx.fill_region(Rect::with_size(0, 0, 80, 50), ' ' as u8, RGB::named(BLACK), RGB::named(RED));
    }
}
fn main()  {
    let context = BTermBuilder::simple80x50()
        .with_title("Hello RLTK World")
        .build();
    let gs: State = State {
    };

    main_loop(context, gs)
}

This issue is dedicated to designing a keyboard/mouse API that works well for both real time and turn by turn games, on native and WASM target.

Issues with current implementation :

• keyboard provides only keycode, no scancode or character and handles only key press events
• mouse interprets any button event as a left click
• the game loop can only handle one key/mouse event per tick

API proposal :

1. being able to check the current status of the controllers :

impl BTerm {
    fn is_key_code_pressed(&self, key_code: KeyCode) -> bool;
    fn is_scan_code_pressed(&self, scan_code: ScanCode) -> bool;
    fn is_mouse_button_pressed(&self, button_num: usize)-> bool;
    fn mouse_cell_pos(&self) -> (i32, i32); // in console cell coordinates
    fn mouse_pixel_pos(&self) -> (f64,f64); // in pixels
}

2. but also provide the raw events to the user

impl BTerm {
    fn pop_event(&mut self) -> Option<InputEvent>;
}

I prefer a pop_event function to an iterator to avoid having to deal with a clear_event function in case the game logic is updated more than once per tick.

As for input events, winit does it pretty well, we should stick to it : Keyboard events can be defined as KeyPress/KeyRelease (or KeyInput with a state). Both events contain both key_code and scan_code when possible. Mouse button events are MousePress/MouseRelease (or MouseInput) and MouseWheel for scrolling events Text input can use a dedicated CharEvent containing a char field.

The following changes the sparse console's size every tick. Is this just happening on my end or is the drawing glitchy?

bracket_terminal::add_wasm_support!();
use bracket_terminal::prelude::*;

struct State {
    n: i32,
}

impl GameState for State {
    fn tick(&mut self, ctx: &mut BTerm) {
        let mut draw_batch = DrawBatch::new();
        draw_batch.target(1);
        draw_batch.cls();
        self.n = (self.n + 1) % 80;
        draw_batch.draw_box(
            Rect::with_size(0, 0, self.n, 1),
            ColorPair::new(RGB::named(WHITE), RGB::named(BLACK)),
        );
        draw_batch.submit(0).expect("Batch error");
        render_draw_buffer(ctx).expect("Render error");
    }
}

fn main() -> BError {
    let context = BTermBuilder::simple80x50()
        .with_font("vga8x16.png", 8u32, 16u32)
        .with_sparse_console(80u32, 25u32, "vga8x16.png")
        .build()?;
    let gs = State { n: 0 };
    main_loop(context, gs)
}

Here's a screenshot of the glitch:

I'm creating this issue to track work related to merging doryen_rs and bracket-lib. Items that eventually require work in bracket-lib will have their dedicated issue.

WASM

• [ ] MISSING cargo-web not supported. To be investigated

Windowing

• [ ] MISSING easy way to save a screenshot, like BTerm::save_screenshot(file_path: &str)

Seeing a few of these when I try to compile on:

Default host: aarch64-apple-darwin

   Compiling winit v0.22.2
error[E0308]: mismatched types
   --> /Users/andrew/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.2/src/platform_impl/macos/util/async.rs:170:55
    |
170 |                 ns_window.setFrame_display_(new_rect, 0);
    |                                                       ^ expected `bool`, found integer

It looks like winit v0.23.0 fixes this https://github.com/rust-windowing/winit/pull/1752

Making the next feature branch a scaling system. I'm hoping that this will resolve quite a few issues that have been reported, while not breaking the API (I'm not asking much, eh?). Since there's a lot of moving parts related to the two scaling systems (simply scaling consoles and growing/shrinking the terminal size dynamically), this deserves its own branch while the kinks are worked out.

Goals:

• Support gutters around the render area. This alleviates the window rounding seen with Big Sur (and in danger of hitting Win11 by the looks of it), and supports other scaling enhancements.
• Accurate font size in texture coordinates when blitting, to avoid the missing-pixel issues that have caused so many problems.
• Probably optional, but "perfect" scaling: add to the gutter until the size is a multiple of the font size, and then scale the font by a consistent amount (or expand/shrink the console by a fixed amount).

Developing will take place in the https://github.com/amethyst/bracket-lib/tree/scaling branch.

This directly affects the following issues: #226 #220 #213 #178 #171

When I resize a BTerm after creation, the characters in the window grow and shrink with it. Is it possible to increase and decrease the number of characters in a BTerm, so as to keep the size of the characters constant?

I have a toy bracket-lib app running locally using a simple terminal.

Using MacOS 12.3.1 I execute cargo build locally to produce a complied binary, and try to run it on another MacOS 12.3.1 machine.

The binary will not run on this other machine, the shell says operation not permitted: ./text_writer. If I try to run it from Finder I get the following dialog:

Both machines are the same type and architecture (Apple M1 Max chip). I haven't experienced this with other Rust built binaries, so I'm assuming there is some dynamic library being linked here that I don't know about when using bracket-lib.

I couldn't find anything in the manual about the best way to bundle / package your bracket game for distribution. Am I doing something obviously wrong?

I'm new to rust, so I might be missing something, but it appears that there isn't any way to install the bevy plugin, at least through cargo.toml. The bracket-bevy crate doesn't seem to have been uploaded to crates.io:

$ cargo add bracket-bevy
    Updating crates.io index
error: the crate `bracket-bevy` could not be found in registry index.

and the bevy feature in bracket-lib appears to be broken due to asking for the bevy feature from bracket-geometry, which doesn't exist:

[dependencies]
bevy = "0.9.1"
bracket-lib = { version = "0.8.7", features = ["bevy"] }

$ cargo run
    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for `bracket-geometry`.
    ... required by package `bracket-lib v0.8.7`
    ... which satisfies dependency `bracket-lib = "^0.8.7"` of package `<>`
versions that meet the requirements `~0.8` are: 0.8.7, 0.8.3, 0.8.2, 0.8.1, 0.8.0

the package `bracket-lib` depends on `bracket-geometry`, with features: `bevy` but `bracket-geometry` does not have these features.


all possible versions conflict with previously selected packages.

  previously selected package `bevy v0.9.1`
    ... which satisfies dependency `bevy = "^0.9.1"` of package `<>`

failed to select a version for `bracket-geometry` which could resolve this conflict

When running with an eGPU, bracket shows a black screen momentarily then errors:

Initialized OpenGL with: 4.1 ATI-4.9.50, Shader Language Version: 4.10
thread 'main' panicked at '[GL] Error: INVALID_ENUM', /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/gl_common/glerror.rs:25:52

Full backtrace:

thread 'main' panicked at '[GL] Error: INVALID_ENUM', /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/gl_common/glerror.rs:25:52
stack backtrace:
   0:        0x100cb1da6 - std::backtrace_rs::backtrace::libunwind::trace::hd1b43f283b1dbd44
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:        0x100cb1da6 - std::backtrace_rs::backtrace::trace_unsynchronized::h8614ff1dba85f493
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:        0x100cb1da6 - std::sys_common::backtrace::_print_fmt::h7d215e53299f06fa
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:65:5
   3:        0x100cb1da6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0cce1bf68f1b36b3
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:44:22
   4:        0x100ccb7fa - core::fmt::write::h1006c44db93fb025
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/core/src/fmt/mod.rs:1208:17
   5:        0x100caf6fc - std::io::Write::write_fmt::h6441c095ef280000
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/io/mod.rs:1682:15
   6:        0x100cb1b8a - std::sys_common::backtrace::_print::h842a675871b4c98f
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:47:5
   7:        0x100cb1b8a - std::sys_common::backtrace::print::h956930f13a633a90
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:34:9
   8:        0x100cb33c3 - std::panicking::default_hook::{{closure}}::hd74f355dd4e33e7d
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:267:22
   9:        0x100cb3118 - std::panicking::default_hook::h3f68e2622c07ad58
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:286:9
  10:        0x100cb3af3 - std::panicking::rust_panic_with_hook::h6fcf23cb5a227488
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:688:13
  11:        0x100cb3883 - std::panicking::begin_panic_handler::{{closure}}::h01cbd742ec2a323f
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:577:13
  12:        0x100cb2248 - std::sys_common::backtrace::__rust_end_short_backtrace::ha4b1a3da54778532
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:137:18
  13:        0x100cb358d - rust_begin_unwind
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:575:5
  14:        0x100cd9463 - core::panicking::panic_fmt::h72cdfd070c864d38
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/core/src/panicking.rs:65:14
  15:        0x100a68e86 - bracket_terminal::hal::gl_common::glerror::gl_error::hfe8542ff88185bdc
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/gl_common/glerror.rs:25:52
  16:        0x100a4afd5 - bracket_terminal::hal::gl_common::shader::Shader::useProgram::h749093a0064f05f1
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/gl_common/shader.rs:64:9
  17:        0x100a10eda - bracket_terminal::hal::native::mainloop::tock::hc4816b42b743897c
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/native/mainloop.rs:428:17
  18:        0x100a1272a - bracket_terminal::hal::native::mainloop::main_loop::{{closure}}::h77babcd34958db73
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/native/mainloop.rs:185:21
  19:        0x100a1a361 - <winit::platform_impl::platform::app_state::EventLoopHandler<T> as winit::platform_impl::platform::app_state::EventHandler>::handle_nonuser_event::{{closure}}::hc1c9f15120099592
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/app_state.rs:106:17
  20:        0x100a1aa3d - winit::platform_impl::platform::app_state::EventLoopHandler<T>::with_callback::h6820fd567f2cd3db
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/app_state.rs:80:13
  21:        0x100a1a177 - <winit::platform_impl::platform::app_state::EventLoopHandler<T> as winit::platform_impl::platform::app_state::EventHandler>::handle_nonuser_event::h1f1994e1d086cc8e
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/app_state.rs:101:9
  22:        0x100be5fd4 - winit::platform_impl::platform::app_state::Handler::handle_nonuser_event::h3c44c42f7fd01d84
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/app_state.rs:209:21
  23:        0x100be805e - winit::platform_impl::platform::app_state::AppState::cleared::h349a837d988dbb3b
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/app_state.rs:399:9
  24:        0x100bb74b0 - winit::platform_impl::platform::observer::control_flow_end_handler::{{closure}}::h312e41ec25b27195
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/observer.rs:184:21
  25:        0x100bb72e8 - winit::platform_impl::platform::observer::control_flow_handler::{{closure}}::h882dfdd1ebc757e3
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/observer.rs:145:9
  26:        0x100bd435b - std::panicking::try::do_call::hd1a237f13320e24a
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:483:40
  27:        0x100bda50d - ___rust_try
  28:        0x100bd41c2 - std::panicking::try::h0705863bbb82ef16
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:447:19
  29:        0x100ba5945 - std::panic::catch_unwind::h87a260c6e64af483
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panic.rs:137:14
  30:        0x100beab4e - winit::platform_impl::platform::event_loop::stop_app_on_panic::he6edf854f818a361
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/event_loop.rs:265:11
  31:        0x100bb7279 - winit::platform_impl::platform::observer::control_flow_handler::h8dcc955150fabcb4
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/observer.rs:143:5
  32:        0x100bb7440 - winit::platform_impl::platform::observer::control_flow_end_handler::h0aebabf0d4976353
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/observer.rs:179:9
  33:     0x7ff807a310c2 - <unknown>
  34:     0x7ff807a30fea - <unknown>
  35:     0x7ff807a30695 - <unknown>
  36:     0x7ff807a2fb90 - <unknown>
  37:     0x7ff811431a06 - <unknown>
  38:     0x7ff811431816 - <unknown>
  39:     0x7ff811431553 - <unknown>
  40:     0x7ff80ab76163 - <unknown>
  41:     0x7ff80ab74fe4 - <unknown>
  42:     0x7ff80ab67623 - <unknown>
  43:        0x100c150a1 - <() as objc::message::MessageArguments>::invoke::h07dbdd62d230c28d
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/objc-0.2.7/src/message/mod.rs:128:17
  44:        0x100c14312 - objc::message::platform::send_unverified::hdddc6b90de6e6a43
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/objc-0.2.7/src/message/apple/mod.rs:27:9
  45:        0x100a1919c - objc::message::send_message::h83184afdb8a8e6a9
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/objc-0.2.7/src/message/mod.rs:178:5
  46:        0x100a1919c - winit::platform_impl::platform::event_loop::EventLoop<T>::run_return::{{closure}}::h5e246f1c93c5ba79
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/event_loop.rs:222:25
  47:        0x100a0f69c - objc::rc::autorelease::autoreleasepool::he2cfa3a686c862d4
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/objc-0.2.7/src/rc/autorelease.rs:29:5
  48:        0x100a18d87 - winit::platform_impl::platform::event_loop::EventLoop<T>::run_return::hee27512062ebcbe1
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/event_loop.rs:212:25
  49:        0x100a193ed - winit::platform_impl::platform::event_loop::EventLoop<T>::run::h5b54841bafcc4628
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/macos/event_loop.rs:191:25
  50:        0x100a154dc - winit::event_loop::EventLoop<T>::run::hbfec3c507e7f00e0
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/event_loop.rs:278:9
  51:        0x100a1220d - bracket_terminal::hal::native::mainloop::main_loop::he7d518038ecfed59
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/hal/native/mainloop.rs:152:5
  52:        0x100a13f7d - bracket_terminal::bterm::main_loop::hf46e22a038750675
                               at /Users/wyattstanke/.cargo/registry/src/github.com-1ecc6299db9ec823/bracket-terminal-0.8.7/src/bterm.rs:1089:5
  53:        0x100a16635 - autoquest::main::h6dfd62ae0fdb5693
                               at /Users/wyattstanke/OSS/autoquest/src/main.rs:17:5
  54:        0x100a1989e - core::ops::function::FnOnce::call_once::h51a019c128f58d37
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/core/src/ops/function.rs:507:5
  55:        0x100a15fc1 - std::sys_common::backtrace::__rust_begin_short_backtrace::h98e0a41827845c78
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/sys_common/backtrace.rs:121:18
  56:        0x100a13824 - std::rt::lang_start::{{closure}}::hd37d89d50c946301
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/rt.rs:166:18
  57:        0x100cac104 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h74cba4256ed7cb7c
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/core/src/ops/function.rs:606:13
  58:        0x100cac104 - std::panicking::try::do_call::hbd30b6cee98c6d1f
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:483:40
  59:        0x100cac104 - std::panicking::try::hf8e6ce82919028ea
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:447:19
  60:        0x100cac104 - std::panic::catch_unwind::hf56af96fd91edbc3
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panic.rs:137:14
  61:        0x100cac104 - std::rt::lang_start_internal::{{closure}}::h7640439d61d81acf
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/rt.rs:148:48
  62:        0x100cac104 - std::panicking::try::do_call::h16ae1d811f67c8a4
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:483:40
  63:        0x100cac104 - std::panicking::try::hb73944cd4bafb33c
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panicking.rs:447:19
  64:        0x100cac104 - std::panic::catch_unwind::h42a98569449bc7cc
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/panic.rs:137:14
  65:        0x100cac104 - std::rt::lang_start_internal::h548a633570735ecf
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/rt.rs:148:20
  66:        0x100a137f7 - std::rt::lang_start::ha195670d699e6abf
                               at /rustc/c97b539e408ea353f4fde2f9251d598291fec421/library/std/src/rt.rs:165:17
  67:        0x100a16708 - _main
  68:     0x7ff807624310 - <unknown>

Cargo.toml:

[package]
name = "autoquest"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
bracket-lib = "0.8.7"

main.rs:

use bracket_lib::prelude::*;

struct State {}

impl GameState for State {
    fn tick(&mut self, ctx: &mut BTerm) {
        ctx.print(1, 1, "Hello Bracket World");
    }
}

fn main() -> BError {
    let context = BTermBuilder::simple80x50()
        .with_title("Hello Minimal Bracket World")
        .build()?;

    let gs: State = State {};
    main_loop(context, gs)
}

System information:

uname -a: Darwin Wyatts-Mac-mini.local 22.2.0 Darwin Kernel Version 22.2.0: Fri Oct 28 06:50:33 PDT 2022; root:xnu-8792.60.51~15/RELEASE_X86_64 x86_6
eGPU: Radeon RX 580
eGPU Extra:
  Chipset Model:	AMD Radeon RX 580
  Type:	External GPU
  Bus:	PCIe
  PCIe Lane Width:	x4
  VRAM (Total):	8 GB
  Vendor:	AMD (0x1002)
  Device ID:	0x67df
  Revision ID:	0x00e7
  Metal Support:	Metal 3
  GPU is Removable:	Yes
MacOS Version: 13.1 Beta (22C5044e)

Note that this works without an eGPU just fine.

Hello,

I am getting a crash running the tutorial code. This is on Fedora 36, running Gnome and Wayland. The window is created normally, but as soon as the mouse cursor hovers the window, the program exits with the following output. If the mouse cursor happens to be within the window bounds when the program starts, the program exits immediately.

Initialized OpenGL with: 4.6 (Core Profile) Mesa 22.1.7, Shader Language Version: 4.60
Error sending request: Resource temporarily unavailable

The contents of the project:

Cargo.toml

[package]
name = "bracket_bug"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
bracket-lib = "0.8"

main.rs

use bracket_lib::prelude::*;

struct State {}

impl GameState for State {
    fn tick(&mut self, ctx: &mut BTerm) {
        ctx.print(1, 1, "Hello Bracket World");
    }
}

fn main() -> BError {
    let context = BTermBuilder::simple80x50()
        .with_title("Hello Minimal Bracket World")
        .build()?;

    let gs: State = State {};
    main_loop(context, gs)
}

I am happy to provide more information, but please bear in mind I am just learning Rust, and I would appreciate it if you could also provide some instructions on how to obtain any traces/logs you might want to see.