{"header":{"message":"feat: start a simple behavior tree implementation","description":null,"timestamp":"2024-03-06T14:19:59.063794Z","authors":[{}]},"hash":"G3FE5YP2OBTWE563KVAJTSUGIYNF3NDOVZSOP2DART725GPZRC3QC","authors":[{"login":"Jengamon","key":"AFEuLzv5ecUJzaewFwoWh4jeCDqWZztr7dswYwyG9vfU"}],"deps":{"hashes":[["G3FE5YP2OBTWE563KVAJTSUGIYNF3NDOVZSOP2DART725GPZRC3QC","feat: start a simple behavior tree implementation"],["AA",null],["2K7MO2JGZKHGDLMNEVXI7G4CP3DJ4DY63PU5QZ4FPZUMWY7ART6AC","feat: dynamic assets!"],["ELGDDPUWFOH6ELJVCFVNUQJQRB44G66BJXVQWQGQHNUWYA3XQJVQC","feat: add fullish physical model"],["FIO72ZSANLC3OS5IKSZ4PUAIBFAAHZA6EFGHMHP6YVFGTOJ7PPKQC","fix(fundsp): the flow is real"],["JNVXXPEIDBTMUTQT5T5WWJXPZCDBEEBG5QXA3JKXYP5SORBVUMMQC","fix: just use bevy_asset_loader"],["R5KHFY6NVDHJJC5WNM4H5MXTVXRRZ2SLGL3LOWHGCEEF66KVBE7AC","fix(camera,debug): polly and cameras"],["VICUJP7SGKKCO2ZWO5ACSO3OS4HV4JTXTHQHYSFOADANGUJ5ZDDAC","fix: fix camera and stuff"],["MKB2A5XCWBZO2E6QFE6PD36LF3IGMJCGJB5TGMRAPSKCKHS75ISAC","fix: more modular"],["7FTW5AQKOO4W5AIHYZSAKLQR6LGVTXH7SKMSTA4ER4C4HP54VE4QC","feat: start bevy project"],["CHX7R6AMVYVLZJ7DSE6E3B4TCJPRWS2V7ZEJIU2UQ3SSLRKYMJWQC","feat(fundsp): create sfxr, goal to have sfxr on a stick"],["ASIORORAPGGVNLR42J6PZRTG7JKK34GYXBYSKSTJFXSFW6YXBJJQC","feat: start fundsp_kira for the *greater good*"],["NWMRJJ6FF223Z37T5JL56ETC24NYVYXATI7EZCFQKH52NBWSQENAC","fix(camera): to 11"],["CAN3DHITMPDA2DJC63QMMPMIC63FMWCUAI4ZLKPLEHIYG2EWIAHAC","feat: dev and env"],["5EIYEUF3S5ETMMVECT7GGEEW6O45AJHAA7HS2EWK5II2IYYD7JGAC","feat: fixes and stuff"],["73T2UA7ZSJ7JN63H7XKNZTCQ274N6J2L7KOYBWTVBO7KWWMTG4KAC","fix: update Cargo for site"]],"deps":["2K7MO2JGZKHGDLMNEVXI7G4CP3DJ4DY63PU5QZ4FPZUMWY7ART6AC","ELGDDPUWFOH6ELJVCFVNUQJQRB44G66BJXVQWQGQHNUWYA3XQJVQC"],"known":["MKB2A5XCWBZO2E6QFE6PD36LF3IGMJCGJB5TGMRAPSKCKHS75ISAC","VICUJP7SGKKCO2ZWO5ACSO3OS4HV4JTXTHQHYSFOADANGUJ5ZDDAC","FIO72ZSANLC3OS5IKSZ4PUAIBFAAHZA6EFGHMHP6YVFGTOJ7PPKQC","JNVXXPEIDBTMUTQT5T5WWJXPZCDBEEBG5QXA3JKXYP5SORBVUMMQC","R5KHFY6NVDHJJC5WNM4H5MXTVXRRZ2SLGL3LOWHGCEEF66KVBE7AC"]},"hunks":[{"FileAdd":{"meta":{"basename":"simple_bt.rs","metadata":0},"context":[{"change":10,"pos":15}],"contents":[{"Add":"//! Create a simple behavior tree implementation"},{"Add":""},{"Add":"mod composite;"},{"Add":""},{"Add":"use bevy::prelude::*;"},{"Add":"pub use composite::Sequence;"},{"Add":"use std::{collections::HashMap, sync::Arc};"},{"Add":""},{"Add":"#[derive(Debug, Clone, PartialEq, Eq, Hash)]"},{"Add":"pub enum NodeResult {"},{"Add":" /// The node is still running"},{"Add":" ///"},{"Add":" /// This contains the node to be ticked"},{"Add":" Running(BehaviorArc),"},{"Add":" /// The node succeeded"},{"Add":" Success,"},{"Add":" /// The node failed"},{"Add":" Failure,"},{"Add":"}"},{"Add":""},{"Add":"/// A wrapper around a behavior node reference that"},{"Add":"/// implements pointer equality behavior"},{"Add":"#[derive(Clone, Debug)]"},{"Add":"pub struct BehaviorArc(Arc);"},{"Add":""},{"Add":"impl std::cmp::PartialEq for BehaviorArc {"},{"Add":" fn eq(&self, other: &Self) -> bool {"},{"Add":" Arc::ptr_eq(&self.0, &other.0)"},{"Add":" }"},{"Add":"}"},{"Add":"impl std::cmp::Eq for BehaviorArc {}"},{"Add":""},{"Add":"impl std::hash::Hash for BehaviorArc {"},{"Add":" fn hash(&self, state: &mut H) {"},{"Add":" std::ptr::hash(self.0.as_ref(), state)"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl From for BehaviorArc {"},{"Add":" fn from(value: T) -> Self {"},{"Add":" Self(Arc::new(value))"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"// This is our main \"behavior tree\" trait."},{"Add":"// all nodes implement this trait."},{"Add":""},{"Add":"pub trait BehaviorNode: std::fmt::Debug {"},{"Add":" fn tick(&self, blackboard: &mut Blackboard, commands: &mut Commands) -> NodeResult;"},{"Add":""},{"Add":" fn arc(self) -> Arc"},{"Add":" where"},{"Add":" Self: Sized + 'static,"},{"Add":" {"},{"Add":" Arc::new(self)"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"// blackboard is how the behavior tree sees/shares information"},{"Add":"#[derive(Debug, Clone, PartialEq, Copy)]"},{"Add":"pub enum BlackboardValue {"},{"Add":" Integer(i64),"},{"Add":" Float(f64),"},{"Add":" Point(Vec2),"},{"Add":" Vector(Vec2),"},{"Add":" Boolean(bool),"},{"Add":" // We want Copy, and strings are probably unneccessary"},{"Add":" // String(Arc),"},{"Add":"}"},{"Add":""},{"Add":"// TODO If this ever librarifies, make this use mint"},{"Add":"pub trait BlackboardValueVector {"},{"Add":" fn point(self) -> Vec2;"},{"Add":" fn vector(self) -> Vec2;"},{"Add":"}"},{"Add":"impl BlackboardValueVector for Vec2 {"},{"Add":" fn point(self) -> Vec2 {"},{"Add":" self"},{"Add":" }"},{"Add":""},{"Add":" fn vector(self) -> Vec2 {"},{"Add":" self"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl BlackboardValue {"},{"Add":" fn into_point(point: T) -> Self {"},{"Add":" Self::Point(point.point())"},{"Add":" }"},{"Add":""},{"Add":" fn into_vector(vector: T) -> Self {"},{"Add":" Self::Vector(vector.vector())"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl From for BlackboardValue {"},{"Add":" fn from(value: bool) -> Self {"},{"Add":" Self::Boolean(value)"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"macro_rules! bv_from {"},{"Add":" (integer $type:ty) => {"},{"Add":" impl From<$type> for BlackboardValue {"},{"Add":" fn from(value: $type) -> Self {"},{"Add":" Self::Integer(i64::from(value))"},{"Add":" }"},{"Add":" }"},{"Add":" };"},{"Add":" (float $type:ty) => {"},{"Add":" impl From<$type> for BlackboardValue {"},{"Add":" fn from(value: $type) -> Self {"},{"Add":" Self::Float(f64::from(value))"},{"Add":" }"},{"Add":" }"},{"Add":" };"},{"Add":"}"},{"Add":"bv_from!(integer u8);"},{"Add":"bv_from!(integer u16);"},{"Add":"bv_from!(integer u32);"},{"Add":"bv_from!(integer i8);"},{"Add":"bv_from!(integer i16);"},{"Add":"bv_from!(integer i32);"},{"Add":"bv_from!(float f32);"},{"Add":"bv_from!(float f64);"},{"Add":""},{"Add":"#[derive(Debug, Default)]"},{"Add":"pub struct Blackboard(HashMap, BlackboardValue>);"},{"Add":""},{"Add":"impl Blackboard {"},{"Add":" pub fn set>(&mut self, key: S, value: BlackboardValue) {"},{"Add":" self.0.insert(Box::from(key.as_ref()), value);"},{"Add":" }"},{"Add":""},{"Add":" pub fn get>(&self, key: S) -> Option<&BlackboardValue> {"},{"Add":" self.0.get(key.as_ref())"},{"Add":" }"},{"Add":""},{"Add":" pub fn get_mut>(&mut self, key: S) -> Option<&mut BlackboardValue> {"},{"Add":" self.0.get_mut(key.as_ref())"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"#[derive(Debug)]"},{"Add":"/// Takes care of executing a behavior tree"},{"Add":"pub struct BehaviorRunner {"},{"Add":" tree: Arc,"},{"Add":" current_tick: Option,"},{"Add":" blackboard: Blackboard,"},{"Add":"}"},{"Add":""},{"Add":"impl BehaviorRunner {"},{"Add":" pub fn new(tree: Arc) -> Self {"},{"Add":" Self {"},{"Add":" tree,"},{"Add":" current_tick: None,"},{"Add":" blackboard: default(),"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" pub fn is_running(&self) -> bool {"},{"Add":" self.current_tick.is_some()"},{"Add":" }"},{"Add":""},{"Add":" pub fn blackboard(&self) -> &Blackboard {"},{"Add":" &self.blackboard"},{"Add":" }"},{"Add":""},{"Add":" pub fn blackboard_mut(&mut self) -> &mut Blackboard {"},{"Add":" &mut self.blackboard"},{"Add":" }"},{"Add":""},{"Add":" fn tick_node(&mut self, node: &dyn BehaviorNode, commands: &mut Commands) -> Option {"},{"Add":" match node.tick(&mut self.blackboard, commands) {"},{"Add":" NodeResult::Running(nbp) => {"},{"Add":" self.current_tick = Some(nbp);"},{"Add":" None"},{"Add":" }"},{"Add":" NodeResult::Success => Some(true),"},{"Add":" NodeResult::Failure => Some(false),"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" // returns None -> still running"},{"Add":" // return Some(p) -> p true success, p false failure"},{"Add":" pub fn proceed(&mut self, commands: &mut Commands) -> Option {"},{"Add":" if let Some(bp) = self.current_tick.take() {"},{"Add":" self.tick_node(bp.0.as_ref(), commands)"},{"Add":" } else {"},{"Add":" let node = self.tree.clone();"},{"Add":" self.tick_node(node.as_ref(), commands)"},{"Add":" }"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"#[cfg(test)]"},{"Add":"mod tests {"},{"Add":" use assert2::check;"},{"Add":" use bevy::ecs::{"},{"Add":" system::{CommandQueue, Commands},"},{"Add":" world::World,"},{"Add":" };"},{"Add":" use bevy::prelude::*;"},{"Add":""},{"Add":" use super::{BehaviorNode, BehaviorRunner, Blackboard, BlackboardValue, NodeResult, Sequence};"},{"Add":""},{"Add":" fn create_testing_state() -> (CommandQueue, World) {"},{"Add":" (CommandQueue::default(), World::new())"},{"Add":" }"},{"Add":""},{"Add":" #[derive(Debug)]"},{"Add":" struct MoveTo {"},{"Add":" part: f32,"},{"Add":" goal: Vec2,"},{"Add":" }"},{"Add":""},{"Add":" impl BehaviorNode for MoveTo {"},{"Add":" fn tick(&self, blackboard: &mut Blackboard, _commands: &mut Commands) -> NodeResult {"},{"Add":" let Some(BlackboardValue::Point(position)) = blackboard.get_mut(\"position\") else {"},{"Add":" return NodeResult::Failure;"},{"Add":" };"},{"Add":""},{"Add":" let movement = (self.goal - *position) * self.part.recip();"},{"Add":" *position += movement;"},{"Add":" const ERROR: f32 = 0.001;"},{"Add":" if (self.goal - *position).length() < ERROR {"},{"Add":" NodeResult::Success"},{"Add":" } else {"},{"Add":" NodeResult::Running("},{"Add":" Self {"},{"Add":" part: self.part,"},{"Add":" goal: self.goal,"},{"Add":" }"},{"Add":" .into(),"},{"Add":" )"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" #[test]"},{"Add":" fn test_seequence() {"},{"Add":" let (mut cq, world) = create_testing_state();"},{"Add":" let mut commands = Commands::new(&mut cq, &world);"},{"Add":""},{"Add":" let tree1 = MoveTo {"},{"Add":" part: 5.0,"},{"Add":" goal: Vec2::ZERO,"},{"Add":" }"},{"Add":" .arc();"},{"Add":" let tree2 = ["},{"Add":" MoveTo {"},{"Add":" part: 5.0,"},{"Add":" goal: Vec2::ZERO,"},{"Add":" }"},{"Add":" .arc(),"},{"Add":" MoveTo {"},{"Add":" part: 5.0,"},{"Add":" goal: Vec2::splat(5.0),"},{"Add":" }"},{"Add":" .arc(),"},{"Add":" ]"},{"Add":" .into_iter()"},{"Add":" .collect::()"},{"Add":" .arc();"},{"Add":""},{"Add":" // With no info, the node should fail"},{"Add":" {"},{"Add":" let mut runner1 = BehaviorRunner::new(tree1.clone());"},{"Add":" check!(!runner1.is_running());"},{"Add":" check!(runner1.proceed(&mut commands) == Some(false));"},{"Add":""},{"Add":" let mut runner2 = BehaviorRunner::new(tree2.clone());"},{"Add":" check!(!runner2.is_running());"},{"Add":" check!(runner2.proceed(&mut commands) == Some(false));"},{"Add":" }"},{"Add":""},{"Add":" // Set some position"},{"Add":" let starting_position = Vec2::X * 5.0;"},{"Add":""},{"Add":" // If a position is set, we will execute the action"},{"Add":" {"},{"Add":" let mut runner1 = BehaviorRunner::new(tree1.clone());"},{"Add":" runner1"},{"Add":" .blackboard_mut()"},{"Add":" .set(\"position\", BlackboardValue::into_point(starting_position));"},{"Add":" check!(runner1.proceed(&mut commands) == None);"},{"Add":" while let Some(BlackboardValue::Point(_)) = runner1.blackboard().get(\"position\") {"},{"Add":" if let Some(res) = runner1.proceed(&mut commands) {"},{"Add":" // we should succeed"},{"Add":" check!(res);"},{"Add":" break;"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" let mut runner2 = BehaviorRunner::new(tree2.clone());"},{"Add":" runner2"},{"Add":" .blackboard_mut()"},{"Add":" .set(\"position\", BlackboardValue::into_point(starting_position));"},{"Add":" while let Some(BlackboardValue::Point(pos)) = runner2.blackboard().get(\"position\") {"},{"Add":" eprintln!(\"position = {pos:?}\\nrunner = {runner2:?}\");"},{"Add":" if let Some(res) = runner2.proceed(&mut commands) {"},{"Add":" // we should succeed"},{"Add":" check!(res);"},{"Add":" break;"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":"}"}]}},{"FileAdd":{"meta":{"basename":"simple_bt","metadata":576},"context":[{"change":10,"pos":15}],"contents":[]}},{"FileAdd":{"meta":{"basename":"composite.rs","metadata":0},"context":[{"change":0,"pos":8458}],"contents":[{"Add":"//! Implementations of composite nodes"},{"Add":""},{"Add":"// We do a little thin runner so nodes are thick"},{"Add":""},{"Add":"use std::sync::Arc;"},{"Add":""},{"Add":"use super::{BehaviorArc, BehaviorNode, NodeResult};"},{"Add":""},{"Add":"pub struct Sequence {"},{"Add":" sub: Arc<[Arc]>,"},{"Add":"}"},{"Add":"impl std::fmt::Debug for Sequence {"},{"Add":" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {"},{"Add":" f.debug_struct(&format!(\"Sequence<{:p}>\", self.sub.as_ref()))"},{"Add":" .field(\"sub\", &self.sub)"},{"Add":" .finish()"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl>> FromIterator for Sequence {"},{"Add":" fn from_iter>(iter: T) -> Self {"},{"Add":" Self {"},{"Add":" sub: Arc::from(iter.into_iter().map(Into::into).collect::>()),"},{"Add":" }"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl Sequence {"},{"Add":" fn resume(seq: Arc<[Arc]>, index: usize, resume: BehaviorArc) -> BehaviorArc {"},{"Add":" SequenceResume { seq, resume, index }.into()"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl BehaviorNode for Sequence {"},{"Add":" fn tick("},{"Add":" &self,"},{"Add":" blackboard: &mut super::Blackboard,"},{"Add":" commands: &mut bevy::prelude::Commands,"},{"Add":" ) -> NodeResult {"},{"Add":" for (idx, sub) in self.sub.iter().enumerate() {"},{"Add":" match sub.tick(blackboard, commands) {"},{"Add":" NodeResult::Success => {}"},{"Add":" NodeResult::Failure => return NodeResult::Failure,"},{"Add":" NodeResult::Running(resume) => {"},{"Add":" return NodeResult::Running(Self::resume(self.sub.clone(), idx, resume))"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" NodeResult::Success"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"struct SequenceResume {"},{"Add":" seq: Arc<[Arc]>,"},{"Add":" resume: BehaviorArc,"},{"Add":" index: usize,"},{"Add":"}"},{"Add":""},{"Add":"impl std::fmt::Debug for SequenceResume {"},{"Add":" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {"},{"Add":" f.debug_struct(&format!(\"SequenceResume<{:p}>\", self.seq.as_ref()))"},{"Add":" .field(\"resume\", &self.resume)"},{"Add":" .field(\"index\", &self.index)"},{"Add":" .finish_non_exhaustive()"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl BehaviorNode for SequenceResume {"},{"Add":" fn tick("},{"Add":" &self,"},{"Add":" blackboard: &mut super::Blackboard,"},{"Add":" commands: &mut bevy::prelude::Commands,"},{"Add":" ) -> NodeResult {"},{"Add":" // Tick the node we want to resume on"},{"Add":" match self.resume.0.tick(blackboard, commands) {"},{"Add":" NodeResult::Success => {}"},{"Add":" NodeResult::Failure => return NodeResult::Failure,"},{"Add":" NodeResult::Running(resume) => {"},{"Add":" return NodeResult::Running(Sequence::resume(self.seq.clone(), self.index, resume))"},{"Add":" }"},{"Add":" }"},{"Add":" for (idx, sub) in self.seq.iter().enumerate().skip(self.index) {"},{"Add":" match sub.tick(blackboard, commands) {"},{"Add":" NodeResult::Success => {}"},{"Add":" NodeResult::Failure => return NodeResult::Failure,"},{"Add":" NodeResult::Running(resume) => {"},{"Add":" return NodeResult::Running(Sequence::resume(self.seq.clone(), idx, resume))"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" NodeResult::Success"},{"Add":" }"},{"Add":"}"}]}},{"Replacement":{"inode":{"change":4,"pos":368},"path":"src/movement.rs","line":40,"ins":{"up_context":[{"change":3,"pos":854}],"down_context":[{"change":3,"pos":886}],"flag":"BLOCK","start":11449,"end":11481,"inode":{"change":4,"pos":368}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":854},"to":{"change":3,"start":854,"end":886},"introduced_by":3}],"inode":{"change":4,"pos":368}},"ins_contents":[{"Add":"pub const MIN_SPEED: f32 = 0.5;"}],"del_contents":[{"Del":"pub const MIN_SPEED: f32 = 1.0;\n"}]}},{"Edit":{"inode":{"change":4,"pos":368},"path":"src/movement.rs","line":43,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":984}],"down_context":[{"change":3,"pos":984}],"flag":"BLOCK","start":11482,"end":11550,"inode":{"change":4,"pos":368}}},"contents":[{"Add":"/// Minimum acceleration to respect"},{"Add":"pub const MIN_ACCEL: f32 = 5.0;"}]}},{"Replacement":{"inode":{"change":4,"pos":368},"path":"src/movement.rs","line":49,"ins":{"up_context":[{"change":3,"pos":1127}],"down_context":[{"change":3,"pos":1254}],"flag":"BLOCK","start":11551,"end":11639,"inode":{"change":4,"pos":368}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":1127},"to":{"change":3,"start":1127,"end":1254},"introduced_by":3}],"inode":{"change":4,"pos":368}},"ins_contents":[{"Add":" const MU: f32 = 0.75;"},{"Add":" const MU_STATIC: f32 = 1.0;"},{"Add":" const GRAVITY: f32 = 10.;"}],"del_contents":[{"Del":" const MU: f32 = 0.7;\n const MU_STATIC: f32 = 0.9;\n const GRAVITY: f32 = 9.8; // m/s^2 on Earth, TODO adjust for feel\n"}]}},{"Replacement":{"inode":{"change":4,"pos":368},"path":"src/movement.rs","line":76,"ins":{"up_context":[{"change":3,"pos":2007}],"down_context":[{"change":3,"pos":2072}],"flag":"BLOCK","start":11640,"end":11807,"inode":{"change":4,"pos":368}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":2007},"to":{"change":3,"start":2007,"end":2072},"introduced_by":3}],"inode":{"change":4,"pos":368}},"ins_contents":[{"Add":" if movable.velocity.length() > MIN_SPEED || acceleration.length() > MIN_ACCEL {"},{"Add":" movable.velocity += acceleration * time.delta_seconds();"},{"Add":" }"}],"del_contents":[{"Del":" movable.velocity += acceleration * time.delta_seconds();\n"}]}},{"Edit":{"inode":{"change":10,"pos":49},"path":"src/main.rs","line":14,"atom":{"NewVertex":{"up_context":[{"change":11,"pos":1560}],"down_context":[{"change":12,"pos":17}],"flag":"BLOCK","start":11808,"end":11823,"inode":{"change":10,"pos":49}}},"contents":[{"Add":"mod simple_bt;"}]}},{"Replacement":{"inode":{"change":4,"pos":120},"path":"src/debug.rs","line":16,"ins":{"up_context":[{"change":4,"pos":589}],"down_context":[{"change":4,"pos":308}],"flag":"BLOCK","start":11824,"end":11959,"inode":{"change":4,"pos":120}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":589},"to":{"change":4,"start":262,"end":308},"introduced_by":4}],"inode":{"change":4,"pos":120}},"ins_contents":[{"Add":" app.add_event::()"},{"Add":" .add_systems(Startup, setup_debug)"},{"Add":" .add_systems(Update, make_a_box)"}],"del_contents":[{"Del":" app.add_systems(Startup, setup_debug)\n"}]}},{"Edit":{"inode":{"change":4,"pos":120},"path":"src/debug.rs","line":69,"atom":{"NewVertex":{"up_context":[{"change":4,"pos":1880}],"down_context":[{"change":4,"pos":1482}],"flag":"BLOCK","start":11960,"end":13325,"inode":{"change":4,"pos":120}}},"contents":[{"Add":"#[derive(Event)]"},{"Add":"struct MakeABoxTrigger {"},{"Add":" mass: f32,"},{"Add":"}"},{"Add":""},{"Add":"fn make_a_box("},{"Add":" mut commands: Commands,"},{"Add":" mut meshes: ResMut>,"},{"Add":" mut materials: ResMut>,"},{"Add":" mut reader: EventReader,"},{"Add":") {"},{"Add":" for box_trigger in reader.read() {"},{"Add":" commands.spawn(("},{"Add":" movement_pointer::MovementDirection(Vec2::ZERO, 0.0),"},{"Add":" MaterialMesh2dBundle {"},{"Add":" mesh: meshes"},{"Add":" .add(Rectangle {"},{"Add":" half_size: (16.0, 24.0).into(),"},{"Add":" })"},{"Add":" .into(),"},{"Add":" // Be careful not to overwrite the LDtk transform"},{"Add":" // Change our origin"},{"Add":" material: materials.add(Color::TURQUOISE),"},{"Add":" // Polly is above us all."},{"Add":" transform: Transform::from_translation(Vec3::Z * 100.0),"},{"Add":" ..default()"},{"Add":" },"},{"Add":" collision::Collidable {"},{"Add":" offset: Vec2::Y * 8.0,"},{"Add":" extents: Vec2::splat(32.0),"},{"Add":" },"},{"Add":" movement::Movable {"},{"Add":" mass: box_trigger.mass,"},{"Add":" ..default()"},{"Add":" },"},{"Add":" spawn_children(|cb| {"},{"Add":" cb.spawn(movement_pointer::MovementPointerBundle::new("},{"Add":" materials.add(Color::ORANGE_RED),"},{"Add":" ));"},{"Add":" }),"},{"Add":" ));"},{"Add":" }"},{"Add":"}"},{"Add":""}]}},{"Edit":{"inode":{"change":4,"pos":120},"path":"src/debug.rs","line":146,"atom":{"NewVertex":{"up_context":[{"change":13,"pos":643}],"down_context":[{"change":4,"pos":642}],"flag":"BLOCK","start":13326,"end":13372,"inode":{"change":4,"pos":120}}},"contents":[{"Add":" mut writer: 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