90 lines
2.9 KiB
Rust
90 lines
2.9 KiB
Rust
use std::collections::HashMap;
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use ::specs::prelude::*;
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use crate::components::{Attributes, EquipmentChanged, Equipped, InBackpack, Item, Pools};
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use crate::game_log::GameLog;
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pub struct EncumbranceSystem {}
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impl<'a> System<'a> for EncumbranceSystem {
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#[allow(clippy::type_complexity)]
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type SystemData = (
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WriteStorage<'a, EquipmentChanged>,
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Entities<'a>,
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ReadStorage<'a, Item>,
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ReadStorage<'a, InBackpack>,
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ReadStorage<'a, Equipped>,
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WriteStorage<'a, Pools>,
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ReadStorage<'a, Attributes>,
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ReadExpect<'a, Entity>,
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WriteExpect<'a, GameLog>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (
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mut equip_dirty,
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entities,
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items,
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backpacks,
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wielded,
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mut pools,
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attributes,
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player,
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mut gamelog,
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) = data;
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if equip_dirty.is_empty() {
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return;
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}
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// Build the map of who needs updating
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let mut to_update: HashMap<Entity, (f32, f32)> = HashMap::new(); // (weight, initiative)
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for (entity, _dirty) in (&entities, &equip_dirty).join() {
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to_update.insert(entity, (0., 0.));
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}
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// Remove all dirty statements
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equip_dirty.clear();
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// Total up equipped items
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for (item, equipped) in (&items, &wielded).join() {
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if to_update.contains_key(&equipped.owner) {
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let totals = to_update.get_mut(&equipped.owner).unwrap();
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totals.0 += item.weight_lbs;
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totals.1 += item.initiative_penalty;
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}
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}
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// Total up carried items
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for (item, carried) in (&items, &backpacks).join() {
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if to_update.contains_key(&carried.owner) {
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let totals = to_update.get_mut(&carried.owner).unwrap();
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totals.0 += item.weight_lbs;
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totals.1 += item.initiative_penalty;
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}
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}
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// Apply the data to Pools
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for (entity, (weight, initiative)) in to_update.iter() {
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if let Some(pool) = pools.get_mut(*entity) {
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pool.total_weight = *weight;
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pool.total_initiative_penalty = *initiative;
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if let Some(attr) = attributes.get(*entity) {
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let carry_capacity_lbs = (attr.might.base + attr.might.modifiers) * 15;
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if pool.total_weight as i32 > carry_capacity_lbs {
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// Overburdened
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pool.total_initiative_penalty += 4.0;
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if *entity == *player {
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gamelog.append(
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"You are overburdened, and suffering an initiative penalty.",
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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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}
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}
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