Struct tetra::graphics::DrawParams

pub struct DrawParams { /* private fields */ }

Struct representing the parameters that can be used when drawing.

A default instance of DrawParams will draw the associated graphic with the following settings:

• Position: [0.0, 0.0]
• Scale: [1.0, 1.0]
• Origin: [0.0, 0.0]
• Rotation: 0.0
• Color: White
• Clip: Full image

Implementations

impl DrawParams

pub fn new() -> DrawParams

Creates a new set of DrawParams.

pub fn position(self, position: Vec2) -> DrawParams

Sets the position that the graphic should be drawn at.

pub fn scale(self, scale: Vec2) -> DrawParams

Sets the scale that the graphic should be drawn at.

This can be set to a negative value to flip the graphic around the origin.

pub fn origin(self, origin: Vec2) -> DrawParams

Sets the origin of the graphic.

Positioning and scaling will be calculated relative to this point.

pub fn rotation(self, rotation: f32) -> DrawParams

Sets the rotation of the graphic, in radians.

pub fn color(self, color: Color) -> DrawParams

Sets the color to multiply the graphic by.

Setting this to white will draw the graphic in its original color.

pub fn clip(self, clip: Rectangle) -> DrawParams

Sets the region of the graphic to draw.

This is useful if you’re using spritesheets (which you should be!).

pub fn build_matrix(&self) -> Mat3

Construct a transformation matrix using the position, scale, origin and rotation.

Trait Implementations

impl Clone for DrawParams

fn clone(&self) -> DrawParams

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for DrawParams

fn default() -> DrawParams

Returns the “default value” for a type.

impl From<Matrix<f32, U2, U1, <DefaultAllocator as Allocator<f32, U2, U1>>::Buffer>> for DrawParams

fn from(position: Vec2) -> DrawParams

Converts to this type from the input type.