euv-engine 0.13.5

A high-performance 2D game engine built on the euv framework, featuring ECS, fixed-timestep game loop, canvas rendering, physics, collision detection, sprite animation, and audio.
Documentation 
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/// The default playback direction of a tween (forwards).
pub(crate) const TWEEN_DIRECTION_FORWARD: f64 = 1.0;

/// The reversed playback direction used by ping-pong tweens.
pub(crate) const TWEEN_DIRECTION_BACKWARD: f64 = -1.0;