Struct Camera 

pub struct Camera {
    pub offset: Vec2,
    pub zoom: f32,
    /* private fields */
}

Camera for canvas panning and zooming.

Fields

offset: Vec2

Pan offset.

zoom: f32

Zoom level.

Implementations

impl Camera

pub fn world_to_screen(&self, pos: Pos2, canvas_center: Pos2) -> Pos2

Transform world position to screen position.

pub fn screen_to_world(&self, pos: Pos2, canvas_center: Pos2) -> Pos2

Transform screen position to world position.

pub fn zoom_by(&mut self, delta: f32, around: Pos2, canvas_center: Pos2)

Handle zoom input.

pub fn pan_by(&mut self, delta: Vec2)

Handle pan input.

pub fn reset(&mut self)

Reset camera.

pub fn update(&mut self, dt: f32)

Update animation (call each frame).

Trait Implementations

impl Clone for Camera

fn clone(&self) -> Camera

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Camera

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

Formats the value using the given formatter.

impl Default for Camera

fn default() -> Self

Returns the “default value” for a type.