stable

js/item_lifecycle_growth_system.js

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+"use strict";
+
+// Layer: entity-runtime/items/growth-system
+// Owns passive grass normalization and zunchi lifecycle stage ticking. The
+// lifecycle step is kept as a pipeline adapter only.
+(function (global) {
+  function updateGrass(item) {
+    if (!item || item.dead || item.type !== "grass") return false;
+    // Grass is intentionally not simulated per item. World.update randomly
+    // advances one grass by one discrete stage every few seconds.
+    normalizeGrassStage(item);
+    return true;
+  }
+
+  function updateZunchiLifecycle(item, dt, worldRef) {
+    if (!item || item.dead || item.type !== "zunchi") return false;
+    item.lifecycleTimer += dt;
+    const interval = item.lifecycleInterval || (0.95 + stableUnit(item.id, "zunchi-life") * 0.45);
+    if (item.lifecycleTimer < interval) return false;
+    const lifecycleDt = Math.min(item.lifecycleTimer, 2.4);
+    item.lifecycleTimer = 0;
+    global.TarinaiItemDynamicZunchiSystem?.updateLifecycle(item, lifecycleDt, worldRef);
+    return true;
+  }
+
+  function update(item, dt, worldRef) {
+    if (!item || item.dead) return { done: true };
+    if (item.type === "grass") updateGrass(item);
+    else if (item.type === "zunchi") updateZunchiLifecycle(item, dt, worldRef);
+    return { done: false };
+  }
+
+  global.TarinaiItemGrowthSystem = Object.freeze({
+    updateGrass,
+    updateZunchiLifecycle,
+    update,
+  });
+})(typeof window !== "undefined" ? window : globalThis);