mirror of
https://gitlab.com/veloren/veloren.git
synced 2024-08-30 18:12:32 +00:00
539 lines
22 KiB
Rust
539 lines
22 KiB
Rust
use crate::{client::Client, Server, StateExt};
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use common::{
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comp::{
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self, item,
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slot::{self, Slot},
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Pos, MAX_PICKUP_RANGE_SQR,
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},
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msg::ServerMsg,
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recipe::default_recipe_book,
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sync::{Uid, WorldSyncExt},
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vol::ReadVol,
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};
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use comp::LightEmitter;
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use rand::Rng;
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use specs::{join::Join, world::WorldExt, Builder, Entity as EcsEntity, WriteStorage};
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use tracing::{debug, error};
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use vek::{Rgb, Vec3};
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pub fn swap_lantern(
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storage: &mut WriteStorage<comp::LightEmitter>,
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entity: EcsEntity,
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lantern: &item::Lantern,
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) {
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if let Some(light) = storage.get_mut(entity) {
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light.strength = lantern.strength();
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light.col = lantern.color();
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}
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}
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pub fn snuff_lantern(storage: &mut WriteStorage<comp::LightEmitter>, entity: EcsEntity) {
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storage.remove(entity);
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}
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#[allow(clippy::blocks_in_if_conditions)]
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#[allow(clippy::same_item_push)] // TODO: Pending review in #587
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pub fn handle_inventory(server: &mut Server, entity: EcsEntity, manip: comp::InventoryManip) {
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let state = server.state_mut();
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let mut dropped_items = Vec::new();
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let mut thrown_items = Vec::new();
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match manip {
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comp::InventoryManip::Pickup(uid) => {
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let picked_up_item: Option<comp::Item>;
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let item_entity = if let (Some((item, item_entity)), Some(inv)) = (
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state
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.ecs()
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.entity_from_uid(uid.into())
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.and_then(|item_entity| {
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state
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.ecs()
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.write_storage::<comp::Item>()
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.get_mut(item_entity)
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.map(|item| (item.clone(), item_entity))
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}),
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state
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.ecs()
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.write_storage::<comp::Inventory>()
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.get_mut(entity),
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) {
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picked_up_item = Some(item.clone());
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if !within_pickup_range(
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state.ecs().read_storage::<comp::Pos>().get(entity),
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state.ecs().read_storage::<comp::Pos>().get(item_entity),
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) {
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debug!("Failed to pick up item as not within range, Uid: {}", uid);
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return;
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};
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// Attempt to add the item to the player's inventory
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match inv.push(item) {
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None => Some(item_entity),
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Some(_) => None, // Inventory was full
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}
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} else {
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// Item entity/component could not be found - most likely because the player
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// attempted to pick up the same item very quickly before its deletion of the
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// world from the first pickup attempt was processed.
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debug!("Failed to get entity/component for item Uid: {}", uid);
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return;
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};
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let event = if let Some(item_entity) = item_entity {
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if let Err(err) = state.delete_entity_recorded(item_entity) {
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// If this occurs it means the item was duped as it's been pushed to the
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// player's inventory but also left on the ground
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panic!("Failed to delete picked up item entity: {:?}", err);
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}
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comp::InventoryUpdate::new(comp::InventoryUpdateEvent::Collected(
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picked_up_item.unwrap(),
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))
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} else {
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comp::InventoryUpdate::new(comp::InventoryUpdateEvent::CollectFailed)
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};
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state.write_component(entity, event);
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},
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comp::InventoryManip::Collect(pos) => {
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let block = state.terrain().get(pos).ok().copied();
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if let Some(block) = block {
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if block.is_collectible() && state.can_set_block(pos) {
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if let Some(item) = comp::Item::try_reclaim_from_block(block) {
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let (event, item_was_added) = if let Some(inv) = state
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.ecs()
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.write_storage::<comp::Inventory>()
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.get_mut(entity)
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{
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match inv.push(item.clone()) {
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None => (
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Some(comp::InventoryUpdate::new(
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comp::InventoryUpdateEvent::Collected(item),
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)),
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true,
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),
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Some(_) => (
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Some(comp::InventoryUpdate::new(
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comp::InventoryUpdateEvent::CollectFailed,
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)),
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false,
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),
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}
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} else {
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debug!(
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"Can't add item to inventory: entity has no inventory ({:?})",
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entity
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);
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(None, false)
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};
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if let Some(event) = event {
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state.write_component(entity, event);
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if item_was_added {
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// we made sure earlier the block was not already modified this tick
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state.set_block(pos, block.into_vacant())
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};
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}
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} else {
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debug!(
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"Failed to reclaim item from block at pos={} or entity had no \
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inventory",
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pos
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)
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}
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} else {
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debug!(
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"Can't reclaim item from block at pos={}: block is not collectable or was \
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already set this tick.",
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pos
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);
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}
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}
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},
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comp::InventoryManip::Use(slot) => {
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let mut inventories = state.ecs().write_storage::<comp::Inventory>();
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let inventory = if let Some(inventory) = inventories.get_mut(entity) {
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inventory
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} else {
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error!(
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?entity,
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"Can't manipulate inventory, entity doesn't have one"
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);
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return;
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};
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let mut maybe_effect = None;
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let event = match slot {
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Slot::Inventory(slot) => {
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use item::ItemKind;
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let (is_equippable, lantern_opt) =
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inventory
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.get(slot)
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.map_or((false, None), |i| match i.kind() {
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ItemKind::Tool(_)
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| ItemKind::Armor { .. }
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| ItemKind::Glider(_) => (true, None),
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ItemKind::Lantern(lantern) => (true, Some(lantern)),
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_ => (false, None),
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});
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if is_equippable {
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if let Some(loadout) = state.ecs().write_storage().get_mut(entity) {
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if let Some(lantern) = lantern_opt {
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swap_lantern(&mut state.ecs().write_storage(), entity, &lantern);
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}
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slot::equip(slot, inventory, loadout);
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Some(comp::InventoryUpdateEvent::Used)
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} else {
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None
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}
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} else if let Some(item) = inventory.take(slot) {
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match item.kind() {
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ItemKind::Consumable { kind, effect, .. } => {
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maybe_effect = Some(*effect);
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Some(comp::InventoryUpdateEvent::Consumed(kind.clone()))
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},
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ItemKind::Throwable { kind, .. } => {
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if let Some(pos) =
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state.ecs().read_storage::<comp::Pos>().get(entity)
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{
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thrown_items.push((
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*pos,
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state
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.read_component_copied::<comp::Vel>(entity)
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.unwrap_or_default(),
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state
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.read_component_copied::<comp::Ori>(entity)
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.unwrap_or_default(),
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*kind,
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));
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}
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Some(comp::InventoryUpdateEvent::Used)
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},
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ItemKind::Utility {
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kind: comp::item::Utility::Collar,
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..
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} => {
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let reinsert = if let Some(pos) =
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state.read_storage::<comp::Pos>().get(entity)
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{
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let uid = state
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.read_component_copied(entity)
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.expect("Expected player to have a UID");
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if (
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&state.read_storage::<comp::Alignment>(),
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&state.read_storage::<comp::Agent>(),
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)
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.join()
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.filter(|(alignment, _)| {
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alignment == &&comp::Alignment::Owned(uid)
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})
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.count()
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>= 3
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{
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true
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} else if let Some(tameable_entity) = {
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let nearest_tameable = (
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&state.ecs().entities(),
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&state.ecs().read_storage::<comp::Pos>(),
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&state.ecs().read_storage::<comp::Alignment>(),
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)
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.join()
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.filter(|(_, wild_pos, _)| {
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wild_pos.0.distance_squared(pos.0)
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< 5.0f32.powf(2.0)
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})
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.filter(|(_, _, alignment)| {
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alignment == &&comp::Alignment::Wild
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})
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.min_by_key(|(_, wild_pos, _)| {
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(wild_pos.0.distance_squared(pos.0) * 100.0) as i32
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})
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.map(|(entity, _, _)| entity);
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nearest_tameable
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} {
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let _ = state
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.ecs()
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.write_storage()
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.insert(tameable_entity, comp::Alignment::Owned(uid));
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// Add to group system
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let mut clients = state.ecs().write_storage::<Client>();
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let uids = state.ecs().read_storage::<Uid>();
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let mut group_manager = state
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.ecs()
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.write_resource::<comp::group::GroupManager>(
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);
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group_manager.new_pet(
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tameable_entity,
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entity,
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&mut state.ecs().write_storage(),
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&state.ecs().entities(),
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&state.ecs().read_storage(),
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&uids,
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&mut |entity, group_change| {
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clients
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.get_mut(entity)
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.and_then(|c| {
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group_change
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.try_map(|e| uids.get(e).copied())
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.map(|g| (g, c))
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})
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.map(|(g, c)| {
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c.notify(ServerMsg::GroupUpdate(g))
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});
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},
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);
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let _ = state
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.ecs()
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.write_storage()
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.insert(tameable_entity, comp::Agent::default());
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false
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} else {
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true
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}
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} else {
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true
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};
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if reinsert {
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let _ = inventory.insert_or_stack(slot, item);
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}
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Some(comp::InventoryUpdateEvent::Used)
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},
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_ => {
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inventory.insert_or_stack(slot, item).unwrap();
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None
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},
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}
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} else {
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None
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}
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},
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Slot::Equip(slot) => {
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if let Some(loadout) = state.ecs().write_storage().get_mut(entity) {
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if slot == slot::EquipSlot::Lantern {
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snuff_lantern(&mut state.ecs().write_storage(), entity);
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}
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slot::unequip(slot, inventory, loadout);
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Some(comp::InventoryUpdateEvent::Used)
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} else {
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error!(?entity, "Entity doesn't have a loadout, can't unequip...");
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None
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}
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},
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};
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drop(inventories);
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if let Some(effect) = maybe_effect {
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state.apply_effect(entity, effect);
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}
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if let Some(event) = event {
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state.write_component(entity, comp::InventoryUpdate::new(event));
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}
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},
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comp::InventoryManip::Swap(a, b) => {
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let ecs = state.ecs();
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let mut inventories = ecs.write_storage();
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let mut loadouts = ecs.write_storage();
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let inventory = inventories.get_mut(entity);
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let loadout = loadouts.get_mut(entity);
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slot::swap(a, b, inventory, loadout);
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// :/
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drop(loadouts);
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drop(inventories);
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state.write_component(
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entity,
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comp::InventoryUpdate::new(comp::InventoryUpdateEvent::Swapped),
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);
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},
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comp::InventoryManip::Drop(slot) => {
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let item = match slot {
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Slot::Inventory(slot) => state
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.ecs()
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.write_storage::<comp::Inventory>()
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.get_mut(entity)
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.and_then(|inv| inv.remove(slot)),
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Slot::Equip(slot) => state
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.ecs()
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.write_storage()
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.get_mut(entity)
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.and_then(|ldt| slot::loadout_remove(slot, ldt)),
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};
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// FIXME: We should really require the drop and write to be atomic!
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if let (Some(mut item), Some(pos)) =
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(item, state.ecs().read_storage::<comp::Pos>().get(entity))
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{
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item.put_in_world();
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dropped_items.push((
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*pos,
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state
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.read_component_copied::<comp::Ori>(entity)
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.unwrap_or_default(),
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item,
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));
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}
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state.write_component(
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entity,
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comp::InventoryUpdate::new(comp::InventoryUpdateEvent::Dropped),
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);
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},
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comp::InventoryManip::CraftRecipe(recipe) => {
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if let Some(inv) = state
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.ecs()
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.write_storage::<comp::Inventory>()
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.get_mut(entity)
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{
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let recipe_book = default_recipe_book();
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let craft_result = recipe_book.get(&recipe).and_then(|r| r.perform(inv).ok());
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// FIXME: We should really require the drop and write to be atomic!
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if craft_result.is_some() {
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let _ = state.ecs().write_storage().insert(
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entity,
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comp::InventoryUpdate::new(comp::InventoryUpdateEvent::Craft),
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);
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}
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// Drop the item if there wasn't enough space
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if let Some(Some((item, amount))) = craft_result {
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for _ in 0..amount {
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dropped_items.push((
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state
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.read_component_copied::<comp::Pos>(entity)
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.unwrap_or_default(),
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state
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.read_component_copied::<comp::Ori>(entity)
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.unwrap_or_default(),
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item.clone(),
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));
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}
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}
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}
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},
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}
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// Drop items
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for (pos, ori, item) in dropped_items {
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let vel = *ori.0 * 5.0
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+ Vec3::unit_z() * 10.0
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+ Vec3::<f32>::zero().map(|_| rand::thread_rng().gen::<f32>() - 0.5) * 4.0;
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state
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.create_object(Default::default(), comp::object::Body::Pouch)
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.with(comp::Pos(pos.0 + Vec3::unit_z() * 0.25))
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.with(item)
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.with(comp::Vel(vel))
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.build();
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}
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let mut rng = rand::thread_rng();
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// Throw items
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for (pos, vel, ori, kind) in thrown_items {
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let vel = match kind {
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item::Throwable::Firework(_) => Vec3::new(
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rng.gen_range(-15.0, 15.0),
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rng.gen_range(-15.0, 15.0),
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rng.gen_range(80.0, 110.0),
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),
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_ => {
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vel.0
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+ *ori.0 * 20.0
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+ Vec3::unit_z() * 15.0
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+ Vec3::<f32>::zero().map(|_| rand::thread_rng().gen::<f32>() - 0.5) * 4.0
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},
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};
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let uid = state.read_component_copied::<Uid>(entity);
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let mut new_entity = state
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.create_object(Default::default(), match kind {
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item::Throwable::Bomb => comp::object::Body::Bomb,
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item::Throwable::Firework(reagent) => match reagent {
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item::Reagent::Blue => comp::object::Body::FireworkBlue,
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item::Reagent::Green => comp::object::Body::FireworkGreen,
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item::Reagent::Purple => comp::object::Body::FireworkPurple,
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item::Reagent::Red => comp::object::Body::FireworkRed,
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item::Reagent::Yellow => comp::object::Body::FireworkYellow,
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},
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item::Throwable::TrainingDummy => comp::object::Body::TrainingDummy,
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})
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.with(comp::Pos(pos.0 + Vec3::unit_z() * 0.25))
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.with(comp::Vel(vel));
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match kind {
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item::Throwable::Bomb => {
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new_entity = new_entity.with(comp::Object::Bomb { owner: uid });
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},
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item::Throwable::Firework(reagent) => {
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new_entity = new_entity
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.with(comp::Object::Firework {
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owner: uid,
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reagent,
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})
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.with(LightEmitter {
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animated: true,
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flicker: 2.0,
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strength: 2.0,
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col: Rgb::new(1.0, 1.0, 0.0),
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});
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},
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item::Throwable::TrainingDummy => {
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new_entity = new_entity.with(comp::Stats::new(
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"Training Dummy".to_string(),
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comp::object::Body::TrainingDummy.into(),
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));
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},
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};
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new_entity.build();
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}
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}
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|
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fn within_pickup_range(player_position: Option<&Pos>, item_position: Option<&Pos>) -> bool {
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match (player_position, item_position) {
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(Some(ppos), Some(ipos)) => ppos.0.distance_squared(ipos.0) < MAX_PICKUP_RANGE_SQR,
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_ => false,
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use common::comp::Pos;
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use vek::Vec3;
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|
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#[test]
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fn pickup_distance_within_range() {
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let player_position = Pos(Vec3::zero());
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let item_position = Pos(Vec3::one());
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assert_eq!(
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within_pickup_range(Some(&player_position), Some(&item_position)),
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true
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);
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}
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|
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#[test]
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fn pickup_distance_not_within_range() {
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let player_position = Pos(Vec3::zero());
|
|
let item_position = Pos(Vec3::one() * 500.0);
|
|
|
|
assert_eq!(
|
|
within_pickup_range(Some(&player_position), Some(&item_position)),
|
|
false
|
|
);
|
|
}
|
|
}
|