 ffc572728f
			
		
	
	
		ffc572728f
		
			
		
	
	
	
	
		
			
			# Objective
Fix typos throughout the project.
## Solution
[`typos`](https://github.com/crate-ci/typos) project was used for
scanning, but no automatic corrections were applied. I checked
everything by hand before fixing.
Most of the changes are documentation/comments corrections. Also, there
are few trivial changes to code (variable name, pub(crate) function name
and a few error/panic messages).
## Unsolved
`bevy_reflect_derive` has
[typo](1b51053f19/crates/bevy_reflect/bevy_reflect_derive/src/type_path.rs (L76))
in enum variant name that I didn't fix. Enum is `pub(crate)`, so there
shouldn't be any trouble if fixed. However, code is tightly coupled with
macro usage, so I decided to leave it for more experienced contributor
just in case.
		
	
			
		
			
				
	
	
		
			288 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			288 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
| //! Enable controls for morph targets detected in a loaded scene.
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| //!
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| //! Collect morph targets and assign keys to them,
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| //! shows on screen additional controls for morph targets.
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| //!
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| //! Illustrates how to access and modify individual morph target weights.
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| //! See the [`update_morphs`] system for details.
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| //!
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| //! Also illustrates how to read morph target names in [`detect_morphs`].
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| 
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| use crate::scene_viewer_plugin::SceneHandle;
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| use bevy::prelude::*;
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| use std::fmt;
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| 
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| const WEIGHT_PER_SECOND: f32 = 0.8;
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| const ALL_MODIFIERS: &[KeyCode] = &[KeyCode::ShiftLeft, KeyCode::ControlLeft, KeyCode::AltLeft];
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| const AVAILABLE_KEYS: [MorphKey; 56] = [
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|     MorphKey::new("r", &[], KeyCode::R),
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|     MorphKey::new("t", &[], KeyCode::T),
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|     MorphKey::new("z", &[], KeyCode::Z),
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|     MorphKey::new("i", &[], KeyCode::I),
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|     MorphKey::new("o", &[], KeyCode::O),
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|     MorphKey::new("p", &[], KeyCode::P),
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|     MorphKey::new("f", &[], KeyCode::F),
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|     MorphKey::new("g", &[], KeyCode::G),
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|     MorphKey::new("h", &[], KeyCode::H),
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|     MorphKey::new("j", &[], KeyCode::J),
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|     MorphKey::new("k", &[], KeyCode::K),
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|     MorphKey::new("y", &[], KeyCode::Y),
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|     MorphKey::new("x", &[], KeyCode::X),
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|     MorphKey::new("c", &[], KeyCode::C),
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|     MorphKey::new("v", &[], KeyCode::V),
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|     MorphKey::new("b", &[], KeyCode::B),
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|     MorphKey::new("n", &[], KeyCode::N),
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|     MorphKey::new("m", &[], KeyCode::M),
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|     MorphKey::new("0", &[], KeyCode::Key0),
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|     MorphKey::new("1", &[], KeyCode::Key1),
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|     MorphKey::new("2", &[], KeyCode::Key2),
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|     MorphKey::new("3", &[], KeyCode::Key3),
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|     MorphKey::new("4", &[], KeyCode::Key4),
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|     MorphKey::new("5", &[], KeyCode::Key5),
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|     MorphKey::new("6", &[], KeyCode::Key6),
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|     MorphKey::new("7", &[], KeyCode::Key7),
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|     MorphKey::new("8", &[], KeyCode::Key8),
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|     MorphKey::new("9", &[], KeyCode::Key9),
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|     MorphKey::new("lshift-R", &[KeyCode::ShiftLeft], KeyCode::R),
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|     MorphKey::new("lshift-T", &[KeyCode::ShiftLeft], KeyCode::T),
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|     MorphKey::new("lshift-Z", &[KeyCode::ShiftLeft], KeyCode::Z),
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|     MorphKey::new("lshift-I", &[KeyCode::ShiftLeft], KeyCode::I),
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|     MorphKey::new("lshift-O", &[KeyCode::ShiftLeft], KeyCode::O),
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|     MorphKey::new("lshift-P", &[KeyCode::ShiftLeft], KeyCode::P),
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|     MorphKey::new("lshift-F", &[KeyCode::ShiftLeft], KeyCode::F),
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|     MorphKey::new("lshift-G", &[KeyCode::ShiftLeft], KeyCode::G),
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|     MorphKey::new("lshift-H", &[KeyCode::ShiftLeft], KeyCode::H),
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|     MorphKey::new("lshift-J", &[KeyCode::ShiftLeft], KeyCode::J),
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|     MorphKey::new("lshift-K", &[KeyCode::ShiftLeft], KeyCode::K),
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|     MorphKey::new("lshift-Y", &[KeyCode::ShiftLeft], KeyCode::Y),
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|     MorphKey::new("lshift-X", &[KeyCode::ShiftLeft], KeyCode::X),
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|     MorphKey::new("lshift-C", &[KeyCode::ShiftLeft], KeyCode::C),
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|     MorphKey::new("lshift-V", &[KeyCode::ShiftLeft], KeyCode::V),
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|     MorphKey::new("lshift-B", &[KeyCode::ShiftLeft], KeyCode::B),
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|     MorphKey::new("lshift-N", &[KeyCode::ShiftLeft], KeyCode::N),
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|     MorphKey::new("lshift-M", &[KeyCode::ShiftLeft], KeyCode::M),
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|     MorphKey::new("lshift-0", &[KeyCode::ShiftLeft], KeyCode::Key0),
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|     MorphKey::new("lshift-1", &[KeyCode::ShiftLeft], KeyCode::Key1),
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|     MorphKey::new("lshift-2", &[KeyCode::ShiftLeft], KeyCode::Key2),
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|     MorphKey::new("lshift-3", &[KeyCode::ShiftLeft], KeyCode::Key3),
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|     MorphKey::new("lshift-4", &[KeyCode::ShiftLeft], KeyCode::Key4),
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|     MorphKey::new("lshift-5", &[KeyCode::ShiftLeft], KeyCode::Key5),
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|     MorphKey::new("lshift-6", &[KeyCode::ShiftLeft], KeyCode::Key6),
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|     MorphKey::new("lshift-7", &[KeyCode::ShiftLeft], KeyCode::Key7),
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|     MorphKey::new("lshift-8", &[KeyCode::ShiftLeft], KeyCode::Key8),
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|     MorphKey::new("lshift-9", &[KeyCode::ShiftLeft], KeyCode::Key9),
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| ];
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| 
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| #[derive(Clone, Copy)]
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| enum WeightChange {
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|     Increase,
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|     Decrease,
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| }
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| impl WeightChange {
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|     fn reverse(&mut self) {
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|         *self = match *self {
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|             WeightChange::Increase => WeightChange::Decrease,
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|             WeightChange::Decrease => WeightChange::Increase,
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|         }
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|     }
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|     fn sign(self) -> f32 {
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|         match self {
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|             WeightChange::Increase => 1.0,
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|             WeightChange::Decrease => -1.0,
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|         }
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|     }
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|     fn change_weight(&mut self, weight: f32, change: f32) -> f32 {
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|         let mut change = change * self.sign();
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|         let new_weight = weight + change;
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|         if new_weight <= 0.0 || new_weight >= 1.0 {
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|             self.reverse();
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|             change = -change;
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|         }
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|         weight + change
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|     }
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| }
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| 
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| struct Target {
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|     entity_name: Option<String>,
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|     entity: Entity,
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|     name: Option<String>,
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|     index: usize,
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|     weight: f32,
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|     change_dir: WeightChange,
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| }
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| impl fmt::Display for Target {
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|     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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|         match (self.name.as_ref(), self.entity_name.as_ref()) {
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|             (None, None) => write!(f, "animation{} of {:?}", self.index, self.entity),
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|             (None, Some(entity)) => write!(f, "animation{} of {entity}", self.index),
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|             (Some(target), None) => write!(f, "{target} of {:?}", self.entity),
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|             (Some(target), Some(entity)) => write!(f, "{target} of {entity}"),
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|         }?;
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|         write!(f, ": {}", self.weight)
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|     }
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| }
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| impl Target {
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|     fn text_section(&self, key: &str, style: TextStyle) -> TextSection {
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|         TextSection::new(format!("[{key}] {self}\n"), style)
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|     }
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|     fn new(
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|         entity_name: Option<&Name>,
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|         weights: &[f32],
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|         target_names: Option<&[String]>,
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|         entity: Entity,
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|     ) -> Vec<Target> {
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|         let get_name = |i| target_names.and_then(|names| names.get(i));
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|         let entity_name = entity_name.map(|n| n.as_str());
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|         weights
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|             .iter()
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|             .enumerate()
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|             .map(|(index, weight)| Target {
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|                 entity_name: entity_name.map(|n| n.to_owned()),
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|                 entity,
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|                 name: get_name(index).cloned(),
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|                 index,
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|                 weight: *weight,
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|                 change_dir: WeightChange::Increase,
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|             })
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|             .collect()
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|     }
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| }
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| 
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| #[derive(Resource)]
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| struct WeightsControl {
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|     weights: Vec<Target>,
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| }
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| 
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| struct MorphKey {
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|     name: &'static str,
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|     modifiers: &'static [KeyCode],
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|     key: KeyCode,
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| }
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| impl MorphKey {
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|     const fn new(name: &'static str, modifiers: &'static [KeyCode], key: KeyCode) -> Self {
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|         MorphKey {
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|             name,
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|             modifiers,
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|             key,
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|         }
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|     }
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|     fn active(&self, inputs: &Input<KeyCode>) -> bool {
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|         let mut modifier = self.modifiers.iter();
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|         let mut non_modifier = ALL_MODIFIERS.iter().filter(|m| !self.modifiers.contains(m));
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| 
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|         let key = inputs.pressed(self.key);
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|         let modifier = modifier.all(|m| inputs.pressed(*m));
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|         let non_modifier = non_modifier.all(|m| !inputs.pressed(*m));
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|         key && modifier && non_modifier
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|     }
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| }
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| fn update_text(
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|     controls: Option<ResMut<WeightsControl>>,
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|     mut text: Query<&mut Text>,
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|     morphs: Query<&MorphWeights>,
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| ) {
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|     let Some(mut controls) = controls else { return; };
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|     for (i, target) in controls.weights.iter_mut().enumerate() {
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|         let Ok(weights) = morphs.get(target.entity) else {
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|             continue;
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|         };
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|         let Some(&actual_weight) = weights.weights().get(target.index) else {
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|             continue;
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|         };
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|         if actual_weight != target.weight {
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|             target.weight = actual_weight;
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|         }
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|         let key_name = &AVAILABLE_KEYS[i].name;
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|         let mut text = text.single_mut();
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|         text.sections[i + 2].value = format!("[{key_name}] {target}\n");
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|     }
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| }
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| fn update_morphs(
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|     controls: Option<ResMut<WeightsControl>>,
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|     mut morphs: Query<&mut MorphWeights>,
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|     input: Res<Input<KeyCode>>,
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|     time: Res<Time>,
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| ) {
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|     let Some(mut controls) = controls else { return; };
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|     for (i, target) in controls.weights.iter_mut().enumerate() {
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|         if !AVAILABLE_KEYS[i].active(&input) {
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|             continue;
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|         }
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|         let Ok(mut weights) = morphs.get_mut(target.entity) else {
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|             continue;
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|         };
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|         // To update individual morph target weights, get the `MorphWeights`
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|         // component and call `weights_mut` to get access to the weights.
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|         let weights_slice = weights.weights_mut();
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|         let i = target.index;
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|         let change = time.delta_seconds() * WEIGHT_PER_SECOND;
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|         let new_weight = target.change_dir.change_weight(weights_slice[i], change);
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|         weights_slice[i] = new_weight;
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|         target.weight = new_weight;
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|     }
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| }
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| 
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| fn detect_morphs(
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|     mut commands: Commands,
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|     morphs: Query<(Entity, &MorphWeights, Option<&Name>)>,
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|     meshes: Res<Assets<Mesh>>,
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|     scene_handle: Res<SceneHandle>,
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|     mut setup: Local<bool>,
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|     asset_server: Res<AssetServer>,
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| ) {
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|     let no_morphing = morphs.iter().len() == 0;
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|     if no_morphing {
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|         return;
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|     }
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|     if scene_handle.is_loaded && !*setup {
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|         *setup = true;
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|     } else {
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|         return;
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|     }
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|     let mut detected = Vec::new();
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| 
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|     for (entity, weights, name) in &morphs {
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|         let target_names = weights
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|             .first_mesh()
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|             .and_then(|h| meshes.get(h))
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|             .and_then(|m| m.morph_target_names());
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|         let targets = Target::new(name, weights.weights(), target_names, entity);
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|         detected.extend(targets);
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|     }
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|     detected.truncate(AVAILABLE_KEYS.len());
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|     let style = TextStyle {
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|         font: asset_server.load("assets/fonts/FiraMono-Medium.ttf"),
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|         font_size: 13.0,
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|         color: Color::WHITE,
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|     };
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|     let mut sections = vec![
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|         TextSection::new("Morph Target Controls\n", style.clone()),
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|         TextSection::new("---------------\n", style.clone()),
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|     ];
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|     let target_to_text =
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|         |(i, target): (usize, &Target)| target.text_section(AVAILABLE_KEYS[i].name, style.clone());
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|     sections.extend(detected.iter().enumerate().map(target_to_text));
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|     commands.insert_resource(WeightsControl { weights: detected });
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|     commands.spawn(TextBundle::from_sections(sections).with_style(Style {
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|         position_type: PositionType::Absolute,
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|         top: Val::Px(10.0),
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|         left: Val::Px(10.0),
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|         ..default()
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|     }));
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| }
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| 
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| pub struct MorphViewerPlugin;
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| 
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| impl Plugin for MorphViewerPlugin {
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|     fn build(&self, app: &mut App) {
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|         app.add_systems(
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|             Update,
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|             (
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|                 update_morphs,
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|                 detect_morphs,
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|                 update_text.after(update_morphs),
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|             ),
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|         );
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|     }
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| }
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