Struct drawille::Turtle

pub struct Turtle {
    pub x: f32,
    pub y: f32,
    pub brush: bool,
    pub rotation: f32,
    pub cvs: Canvas,
}

A ‘turtle’ that can walk around a canvas drawing lines.

Fields

x: f32

y: f32

brush: bool

rotation: f32

cvs: Canvas

Methods

impl Turtle

fn new(x: f32, y: f32) -> Turtle

Create a new Turtle, starting at the given coordinates.

The turtle starts with its brush down, facing right.

fn from_canvas(x: f32, y: f32, cvs: Canvas) -> Turtle

Creates a new Turtle with the provided Canvas, starting at the given coordinates.

The turtle starts with its brush down, facing right.

fn width(self, width: u32) -> Turtle

Sets the width of a Turtle’s Canvas, and return it for use again.

fn height(self, height: u32) -> Turtle

Sets the height of a Turtle’s Canvas, and return it for use again.

fn up(&mut self)

Lifts the Turtle’s brush.

fn down(&mut self)

Puts down the Turtle’s brush.

fn toggle(&mut self)

Toggles the Turtle’s brush.

fn forward(&mut self, dist: f32)

Moves the Turtle forward by dist steps.

fn back(&mut self, dist: f32)

Moves the Turtle backward by dist steps.

fn teleport(&mut self, x: f32, y: f32)

Teleports the Turtle to the given coordinates.

Note that this draws a line between the old position and the new one if the Turtle’s brush is down.

fn right(&mut self, angle: f32)

Turns the Turtle right (clockwise) by angle degrees.

fn left(&mut self, angle: f32)

Turns the Turtle left (clockwise) by angle degrees.

fn frame(&self) -> String

Writes the Turtle’s Canvas to a String and returns it.