Struct Animation 

pub struct Animation {
    pub name: String,
    pub frame_size: Vec2,
    pub frames: Vec<AnimationFrame>,
    pub speed: f32,
    pub looping: bool,
    pub ping_pong: bool,
    pub offset: Vec2,
}

A single animation defined from a sprite sheet.

Fields

name: String

Human-readable name (e.g., “idle”, “run”, “attack”).

frame_size: Vec2

Region of the sprite sheet: (x, y, width, height) per frame in pixels.

frames: Vec<AnimationFrame>

Frames in this animation (indices into the sprite sheet row).

speed: f32

Playback speed (1.0 = normal, 2.0 = double speed).

looping: bool

Whether to loop.

ping_pong: bool

Whether to ping-pong (play forward then backward).

offset: Vec2

Offset from the sprite’s position (for attack effects, etc.).

Implementations

impl Animation

pub fn from_row( name: &str, row: u32, start_col: u32, end_col: u32, frame_duration: f32, ) -> Self

Create a simple animation with evenly-spaced frames in a single row.

• name — animation name
• row — sprite sheet row
• start_col — first column (inclusive)
• end_col — last column (inclusive)
• frame_duration — seconds per frame

pub fn with_frame_size(self, w: f32, h: f32) -> Self

Builder: set frame size.

pub fn with_speed(self, speed: f32) -> Self

Builder: set speed.

pub fn with_looping(self, looping: bool) -> Self

Builder: set looping.

pub fn with_ping_pong(self) -> Self

Builder: set ping-pong.

pub fn with_offset(self, x: f32, y: f32) -> Self

Builder: set offset.

pub fn with_frame_event(self, frame_index: usize, event: &str) -> Self

Add an event to a specific frame.

pub fn total_duration(&self) -> f32

Total duration of the animation in seconds.

pub fn frame_count(&self) -> usize

Number of frames.

Trait Implementations

impl Clone for Animation

fn clone(&self) -> Animation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Animation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.