bevy_animation::animate_targets crashes with "subtract with overflow" if there is an empty curve on AnimationClip #14766
Description
Bevy version
0.14.1
[Optional] Relevant system information
SystemInfo { os: "Linux 24.05 NixOS", kernel: "6.6.45", cpu: "Intel(R) Core(TM) i7-14700KF", core_count: "20", memory: "31.2 GiB" }
AdapterInfo { name: "NVIDIA GeForce RTX 4060 Ti", vendor: 4318, device: 10243, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "550.78", backend: Vulkan }
What you did
Created an AnimationClip and added a curve to it with empty keyframe_timestamps and keyframes and attempted to play the clip.
What went wrong
Application crashed with "attempted to subtract with overflow", preferably it should warn that the VariableCurve was created with empty keyframe_timestamps and keyframes over crashing.
Additional information
Crash log, a bit mangled because there is multiple errors being printed in parallel
thread 'thread 'thread 'thread 'Compute Task Pool (16)Compute Task Pool (14)Compute Task Pool (15)Compute Task Pool (12)' panicked at ' panicked at ' panicked at ' panicked at /home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rsthread 'thread '/home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs/home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs/home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs:Compute Task Pool (18)Compute Task Pool (10):::131thread '' panicked at Compute Task Pool (9)' panicked at 131131131:/home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs' panicked at /home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs:::/home/hukasu/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_animation-0.14.1/src/lib.rs:292929:131:
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:131:attempt to subtract with overflow29131attempt to subtract with overflowattempt to subtract with overflow29:
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29note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
:
attempt to subtract with overflow29:
attempt to subtract with overflow
:
attempt to subtract with overflow
attempt to subtract with overflow
Encountered a panic in system `bevy_animation::animate_targets`!
Encountered a panic in system `bevy_app::main_schedule::Main::run_main`!
thread '<unnamed>' panicked at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/thread/local.rs:260:26:
cannot access a Thread Local Storage value during or after destruction: AccessError
fatal runtime error: failed to initiate panic, error 5
Aborted (core dumped)
