initial commit

src/engine/saveLoad.ts

@@ -0,0 +1,78 @@
+import { defaultGame } from "../prefabs/game";
+import { Game, SerializedGame, SerializedNodeBehaviour } from "../types";
+import { Behaviour, behaviours } from "./functions";
+
+export function serializeBehaviour(behaviour: Behaviour): SerializedNodeBehaviour {
+    switch (behaviour.kind) {
+        case 'converter':
+            return {
+                id: behaviour.id,
+                kind: 'converter',
+                inputs: {
+                    pins: behaviour.inputs.pins.map((pin) => ({
+                        ...pin,
+                        rate: 11,
+                    })),
+                },
+                outputs: {
+                    pins: behaviour.outputs.pins.map((pin) => ({
+                        ...pin,
+                        rate: 11,
+                    })),
+                },
+            };
+        default:
+            throw new Error('Unknown behaviour');
+    }
+}
+
+export function deserializeBehaviour(value: SerializedNodeBehaviour): Behaviour {
+    switch (value.kind) {
+        case 'converter':
+            return new (behaviours.converter)(value);
+        default:
+            throw new Error('Unknown behaviour');
+    }
+}
+
+export function serialize(game: Game): SerializedGame {
+    return {
+        time: game.time,
+        nodes: game.nodes.map((node) => ({
+            id: node.id,
+            name: node.name,
+            behaviour: serializeBehaviour(node.behaviour),
+        })),
+    };
+}
+
+export function deserialize(value: SerializedGame): Game {
+    return new Game(value);
+}
+
+export function serializeToString(game: Game): string {
+    return JSON.stringify(serialize(game));
+}
+
+export function deserializeFromString(value: string): Game {
+    return deserialize(JSON.parse(value));
+}
+
+const KEY_GAME = 'incgane';
+
+export function save(game: Game) {
+    localStorage.setItem(KEY_GAME, serializeToString(game));
+}
+
+export function load(): Game {
+    try {
+        const raw = localStorage.getItem(KEY_GAME);
+        if (raw)
+            return deserializeFromString(raw);
+    } catch (e) {
+        console.warn('Не удалось прочитать игру из localStorage', e);
+    }
+    const fresh = deserialize(defaultGame());
+    save(fresh);
+    return fresh;
+}