109 lines
2.3 KiB
Rust
109 lines
2.3 KiB
Rust
//! Turtle commands and command queue
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use crate::general::{Color, Coordinate, Precision};
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use crate::shapes::TurtleShape;
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/// Individual turtle commands
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#[derive(Clone, Debug)]
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pub enum TurtleCommand {
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// Movement (positive = forward, negative = backward)
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Move(Precision),
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// Rotation (positive = right/clockwise, negative = left/counter-clockwise in degrees)
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Turn(Precision),
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// Circle drawing
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Circle {
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radius: Precision,
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angle: Precision, // degrees
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steps: usize,
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direction: crate::circle_geometry::CircleDirection,
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},
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// Pen control
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PenUp,
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PenDown,
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// Appearance
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SetColor(Color),
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SetFillColor(Option<Color>),
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SetPenWidth(Precision),
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SetSpeed(u32),
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SetShape(TurtleShape),
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// Position
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Goto(Coordinate),
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SetHeading(Precision), // radians
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// Visibility
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ShowTurtle,
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HideTurtle,
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}
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/// Queue of turtle commands with execution state
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#[derive(Debug)]
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pub struct CommandQueue {
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commands: Vec<TurtleCommand>,
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current_index: usize,
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}
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impl CommandQueue {
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pub fn new() -> Self {
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Self {
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commands: Vec::new(),
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current_index: 0,
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}
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}
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pub fn with_capacity(capacity: usize) -> Self {
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Self {
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commands: Vec::with_capacity(capacity),
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current_index: 0,
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}
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}
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pub fn push(&mut self, command: TurtleCommand) {
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self.commands.push(command);
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}
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pub fn extend(&mut self, commands: impl IntoIterator<Item = TurtleCommand>) {
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self.commands.extend(commands);
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}
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pub fn next(&mut self) -> Option<&TurtleCommand> {
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if self.current_index < self.commands.len() {
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let cmd = &self.commands[self.current_index];
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self.current_index += 1;
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Some(cmd)
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} else {
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None
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}
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}
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pub fn is_complete(&self) -> bool {
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self.current_index >= self.commands.len()
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}
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pub fn reset(&mut self) {
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self.current_index = 0;
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}
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pub fn len(&self) -> usize {
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self.commands.len()
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}
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pub fn is_empty(&self) -> bool {
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self.commands.is_empty()
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}
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pub fn remaining(&self) -> usize {
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self.commands.len().saturating_sub(self.current_index)
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}
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}
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impl Default for CommandQueue {
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fn default() -> Self {
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Self::new()
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}
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}
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