use super::SysTimer; use common::{ comp::{ Body, CanBuild, Energy, Gravity, Item, LightEmitter, Mass, MountState, Mounting, Player, Scale, Stats, Sticky, }, msg::EcsCompPacket, sync::{EntityPackage, SyncPackage, Uid, UpdateTracker, WorldSyncExt}, }; use hashbrown::HashMap; use specs::{ shred::ResourceId, Entity as EcsEntity, Join, ReadExpect, ReadStorage, System, SystemData, World, Write, WriteExpect, }; use vek::*; /// Always watching /// This system will monitor specific components for insertion, removal, and modification pub struct Sys; impl<'a> System<'a> for Sys { type SystemData = ( Write<'a, SysTimer>, TrackedComps<'a>, WriteTrackers<'a>, ); fn run(&mut self, (mut timer, comps, mut trackers): Self::SystemData) { timer.start(); record_changes(&comps, &mut trackers); timer.end(); } } // Probably more difficult than it needs to be :p #[derive(SystemData)] pub struct TrackedComps<'a> { pub uid: ReadStorage<'a, Uid>, pub body: ReadStorage<'a, Body>, pub player: ReadStorage<'a, Player>, pub stats: ReadStorage<'a, Stats>, pub energy: ReadStorage<'a, Energy>, pub can_build: ReadStorage<'a, CanBuild>, pub light_emitter: ReadStorage<'a, LightEmitter>, pub item: ReadStorage<'a, Item>, pub scale: ReadStorage<'a, Scale>, pub mounting: ReadStorage<'a, Mounting>, pub mount_state: ReadStorage<'a, MountState>, pub mass: ReadStorage<'a, Mass>, pub sticky: ReadStorage<'a, Sticky>, pub gravity: ReadStorage<'a, Gravity>, } impl<'a> TrackedComps<'a> { pub fn create_entity_package(&self, entity: EcsEntity) -> EntityPackage { let uid = self .uid .get(entity) .copied() .expect("No uid to create an entity package") .0; let mut comps = Vec::new(); self.body.get(entity).copied().map(|c| comps.push(c.into())); self.player .get(entity) .cloned() .map(|c| comps.push(c.into())); self.stats .get(entity) .cloned() .map(|c| comps.push(c.into())); self.energy .get(entity) .cloned() .map(|c| comps.push(c.into())); self.can_build .get(entity) .cloned() .map(|c| comps.push(c.into())); self.light_emitter .get(entity) .copied() .map(|c| comps.push(c.into())); self.item.get(entity).cloned().map(|c| comps.push(c.into())); self.scale .get(entity) .copied() .map(|c| comps.push(c.into())); self.mounting .get(entity) .cloned() .map(|c| comps.push(c.into())); self.mount_state .get(entity) .cloned() .map(|c| comps.push(c.into())); self.mass.get(entity).copied().map(|c| comps.push(c.into())); self.sticky .get(entity) .copied() .map(|c| comps.push(c.into())); self.gravity .get(entity) .copied() .map(|c| comps.push(c.into())); EntityPackage { uid, comps } } } #[derive(SystemData)] pub struct ReadTrackers<'a> { pub uid: ReadExpect<'a, UpdateTracker>, pub body: ReadExpect<'a, UpdateTracker>, pub player: ReadExpect<'a, UpdateTracker>, pub stats: ReadExpect<'a, UpdateTracker>, pub energy: ReadExpect<'a, UpdateTracker>, pub can_build: ReadExpect<'a, UpdateTracker>, pub light_emitter: ReadExpect<'a, UpdateTracker>, pub item: ReadExpect<'a, UpdateTracker>, pub scale: ReadExpect<'a, UpdateTracker>, pub mounting: ReadExpect<'a, UpdateTracker>, pub mount_state: ReadExpect<'a, UpdateTracker>, pub mass: ReadExpect<'a, UpdateTracker>, pub sticky: ReadExpect<'a, UpdateTracker>, pub gravity: ReadExpect<'a, UpdateTracker>, } impl<'a> ReadTrackers<'a> { pub fn create_sync_package( &self, comps: &TrackedComps, filter: impl Join + Copy, deleted_entities: Vec, ) -> SyncPackage { SyncPackage::new(&comps.uid, &self.uid, filter, deleted_entities) .with_component(&comps.uid, &*self.body, &comps.body, filter) .with_component(&comps.uid, &*self.player, &comps.player, filter) .with_component(&comps.uid, &*self.stats, &comps.stats, filter) .with_component(&comps.uid, &*self.energy, &comps.energy, filter) .with_component(&comps.uid, &*self.can_build, &comps.can_build, filter) .with_component( &comps.uid, &*self.light_emitter, &comps.light_emitter, filter, ) .with_component(&comps.uid, &*self.item, &comps.item, filter) .with_component(&comps.uid, &*self.scale, &comps.scale, filter) .with_component(&comps.uid, &*self.mounting, &comps.mounting, filter) .with_component(&comps.uid, &*self.mount_state, &comps.mount_state, filter) .with_component(&comps.uid, &*self.mass, &comps.mass, filter) .with_component(&comps.uid, &*self.sticky, &comps.sticky, filter) .with_component(&comps.uid, &*self.gravity, &comps.gravity, filter) } } #[derive(SystemData)] pub struct WriteTrackers<'a> { uid: WriteExpect<'a, UpdateTracker>, body: WriteExpect<'a, UpdateTracker>, player: WriteExpect<'a, UpdateTracker>, stats: WriteExpect<'a, UpdateTracker>, energy: WriteExpect<'a, UpdateTracker>, can_build: WriteExpect<'a, UpdateTracker>, light_emitter: WriteExpect<'a, UpdateTracker>, item: WriteExpect<'a, UpdateTracker>, scale: WriteExpect<'a, UpdateTracker>, mounting: WriteExpect<'a, UpdateTracker>, mount_state: WriteExpect<'a, UpdateTracker>, mass: WriteExpect<'a, UpdateTracker>, sticky: WriteExpect<'a, UpdateTracker>, gravity: WriteExpect<'a, UpdateTracker>, } fn record_changes(comps: &TrackedComps, trackers: &mut WriteTrackers) { // Update trackers trackers.uid.record_changes(&comps.uid); trackers.body.record_changes(&comps.body); trackers.player.record_changes(&comps.player); trackers.stats.record_changes(&comps.stats); trackers.energy.record_changes(&comps.energy); trackers.can_build.record_changes(&comps.can_build); trackers.light_emitter.record_changes(&comps.light_emitter); trackers.item.record_changes(&comps.item); trackers.scale.record_changes(&comps.scale); trackers.mounting.record_changes(&comps.mounting); trackers.mount_state.record_changes(&comps.mount_state); trackers.mass.record_changes(&comps.mass); trackers.sticky.record_changes(&comps.sticky); trackers.gravity.record_changes(&comps.gravity); } pub fn register_trackers(world: &mut World) { world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); world.register_tracker::(); } /// Deleted entities grouped by region pub struct DeletedEntities { map: HashMap, Vec>, } impl Default for DeletedEntities { fn default() -> Self { Self { map: HashMap::new(), } } } impl DeletedEntities { pub fn record_deleted_entity(&mut self, uid: Uid, region_key: Vec2) { self.map .entry(region_key) .or_insert(Vec::new()) .push(uid.into()); } pub fn take_deleted_in_region(&mut self, key: Vec2) -> Option> { self.map.remove(&key) } pub fn get_deleted_in_region(&mut self, key: Vec2) -> Option<&Vec> { self.map.get(&key) } pub fn take_remaining_deleted(&mut self) -> Vec<(Vec2, Vec)> { // TODO: don't allocate self.map.drain().collect() } }