Add chainable splitter component

src/js/game/component_registry.js

@@ -10,6 +10,7 @@ import { UndergroundBeltComponent } from "./components/underground_belt";
 import { UnremovableComponent } from "./components/unremovable";
 import { HubComponent } from "./components/hub";
 import { StorageComponent } from "./components/storage";
+import { ChainableSplitterComponent } from "./components/chainable_splitter";
 import { EnergyGeneratorComponent } from "./components/energy_generator";
 import { WiredPinsComponent } from "./components/wired_pins";
 
@@ -25,6 +26,7 @@ export function initComponentRegistry() {
     gComponentRegistry.register(UnremovableComponent);
     gComponentRegistry.register(HubComponent);
     gComponentRegistry.register(StorageComponent);
+    gComponentRegistry.register(ChainableSplitterComponent);
     gComponentRegistry.register(EnergyGeneratorComponent);
     gComponentRegistry.register(WiredPinsComponent);
 

src/js/game/components/chainable_splitter.js

@@ -0,0 +1,46 @@
+import { globalConfig } from "../../core/config";
+import { types } from "../../savegame/serialization";
+import { Component } from "../component";
+import { BaseItem } from "../base_item";
+import { gItemRegistry } from "../../core/global_registries";
+
+export class ChainableSplitterComponent extends Component {
+    static getId() {
+        return "ChainableSplitter";
+    }
+
+    static getSchema() {
+        return {
+            chainable: types.bool,
+            inputItem: types.nullable(types.obj(gItemRegistry)),
+            ejected: types.bool,
+        };
+    }
+
+    duplicateWithoutContents() {
+        return new ChainableSplitterComponent({
+            chainable: this.chainable,
+        });
+    }
+
+    constructor({ chainable = false }) {
+        super();
+
+        this.chainable = chainable;
+        this.inputItem = null;
+        this.ejected = false;
+    }
+
+    /**
+     * Tries to take the item
+     * @param {BaseItem} item
+     */
+    tryTakeItem(item) {
+        if (this.inputItem !== null) {
+            return false;
+        }
+
+        this.inputItem = item;
+        return true;
+    }
+}

src/js/game/entity_components.js

@@ -10,6 +10,7 @@ import { UndergroundBeltComponent } from "./components/underground_belt";
 import { UnremovableComponent } from "./components/unremovable";
 import { HubComponent } from "./components/hub";
 import { StorageComponent } from "./components/storage";
+import { ChainableSplitterComponent } from "./components/chainable_splitter";
 import { EnergyGeneratorComponent } from "./components/energy_generator";
 import { WiredPinsComponent } from "./components/wired_pins";
 /* typehints:end */
@@ -55,6 +56,9 @@ export class EntityComponentStorage {
         /** @type {StorageComponent} */
         this.Storage;
 
+        /** @type {ChainableSplitterComponent} */
+        this.ChainableSplitter;
+
         /** @type {EnergyGeneratorComponent} */
         this.EnergyGenerator;
 

src/js/game/systems/item_ejector.js

@@ -306,6 +306,16 @@ export class ItemEjectorSystem extends GameSystemWithFilter {
             return false;
         }
 
+        const chainableSplitterComp = receiver.components.ChainableSplitter;
+        if (chainableSplitterComp) {
+            // Its an chainable splitter ..
+            if (chainableSplitterComp.tryTakeItem(item)) {
+                return true;
+            }
+            // Chainable splitter can have nothing else
+            return false;
+        }
+
         const energyGeneratorComp = receiver.components.EnergyGenerator;
         if (energyGeneratorComp) {
             if (energyGeneratorComp.tryTakeItem(item, slotIndex)) {