tarinai/js/item_update_policy.js

"use strict";

// Layer: entity-runtime/items/policy
// Owns the item update cadence and scheduled-item candidate set. Simulation
// helpers and the item scheduler both read this single policy instead of
// duplicating item-type timing rules.
(function (global) {
  const REALTIME_ITEM_TYPES = new Set(["ball", "genkotsu", "firecracker", "rotator", "reciprocator", "rope", "rod"]);
  const PIN_ITEM_TYPES = new Set(["pushpin", "oshibyo"]);
  const SCHEDULED_ITEM_TYPES = Object.freeze([
    "ball", "genkotsu", "firecracker", "pushpin", "oshibyo",
    "plushie", "grass_bed", "zunchi", "duplicator", "water", "trace", "splat", "ant_corpse", "food",
    "sweet", "love_mochi", "fight_mochi", "sleep_drug", "laxative", "protein", "niteropu", "ammo", "mystery_drug", "mercury", "giant_drug", "dwarf_drug", "zunda_juice",
    "stone", "bed", "nest_box", "ant_nest", "signboard", "fence_v", "fence_h", "bounce_fence", "bounce_fence_v", "gate_fence", "rotator", "reciprocator", "rope", "rod", "water_bowl",
  ]);

  function itemUpdateInterval(item) {
    if (!item || item.dead) return Infinity;
    if (REALTIME_ITEM_TYPES.has(item.type)) return 0;
    if (PIN_ITEM_TYPES.has(item.type)) return 0;
    if (item.isStructure && item.type === "plushie") return 0;
    if (item.isStructure && item.type === "grass_bed") return 3.0;
    if ((item.dropTimer || 0) > 0 || Math.hypot(item.vx || 0, item.vy || 0) > 0.08) return 0;
    if (item.type === "zunchi") return 2.4;
    if (item.type === "grass") return Infinity;
    if (item.type === "duplicator") return 0.5;
    if (item.type === "water") return 1.8;
    if (item.type === "trace" || item.type === "splat") return 1.2;
    if (item.type === "ant_corpse") return 3.5;
    if (typeof global.isServingFoodType === "function" && global.isServingFoodType(item.type)) return 5.0;
    if (typeof isServingFoodType === "function" && isServingFoodType(item.type)) return 5.0;
    return Infinity;
  }

  function ensureBuckets(worldRef) {
    if (worldRef?.ensureItemBuckets) worldRef.ensureItemBuckets("item-update-policy");
  }

  function forScheduledItems(worldRef, visitor) {
    if (!worldRef || typeof visitor !== "function") return 0;
    let count = 0;
    if (!worldRef.itemsOfType) {
      for (const it of worldRef.items || []) {
        if (!it || it.dead || it.type === "grass") continue;
        visitor(it);
        count += 1;
      }
      return count;
    }
    ensureBuckets(worldRef);
    for (const type of SCHEDULED_ITEM_TYPES) {
      const bucket = worldRef.itemsOfType(type);
      for (const it of bucket || []) {
        if (!it || it.dead) continue;
        visitor(it);
        count += 1;
      }
    }
    return count;
  }

  function candidateItems(worldRef) {
    const out = [];
    forScheduledItems(worldRef, (item) => out.push(item));
    return out;
  }

  function isRealtime(item) {
    return itemUpdateInterval(item) <= 0;
  }

  global.TarinaiItemUpdatePolicy = Object.freeze({
    REALTIME_ITEM_TYPES,
    PIN_ITEM_TYPES,
    SCHEDULED_ITEM_TYPES,
    itemUpdateInterval,
    forScheduledItems,
    ensureBuckets,
    candidateItems,
    isRealtime,
  });
})(typeof window !== "undefined" ? window : globalThis);