RBSerialization 2D Vector

js/entity/RBSerializationVector2DEntity.js

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+import Grammar from "../serialization/Grammar.js"
+import Parsimmon from "parsimmon"
+import Vector2DEntity from "./Vector2DEntity.js"
+
+export default class RBSerializationVector2DEntity extends Vector2DEntity {
+
+    static grammar = this.createGrammar()
+
+    static createGrammar() {
+        return Parsimmon.alt(
+            Parsimmon.seq(
+                Parsimmon.string("X").then(Grammar.equalSeparation).then(Grammar.number),
+                Parsimmon.regex(Grammar.Regex.InlineWhitespace),
+                Parsimmon.string("Y").then(Grammar.equalSeparation).then(Grammar.number),
+            ).map(([x, _1, y]) => new this({
+                X: x,
+                Y: y,
+            })),
+            Vector2DEntity.createGrammar()
+        )
+    }
+}