Add distance condition for auto resource sending

tests/Core/CoordinatesTest.ts

@@ -0,0 +1,24 @@
+import { it, describe } from 'mocha';
+import { expect } from 'chai';
+
+import { Coordinates } from '../../src/Core/Village';
+
+describe('Coordinates', function () {
+    it('Can compare same', function () {
+        const a = new Coordinates(1, 1);
+        const b = new Coordinates(1, 1);
+        expect(a.eq(b)).is.true;
+    });
+
+    it('Can compare different', function () {
+        const a = new Coordinates(1, 1);
+        const b = new Coordinates(2, 1);
+        expect(a.eq(b)).is.false;
+    });
+
+    it('Can calc distance', function () {
+        const a = new Coordinates(0, 0);
+        const b = new Coordinates(-3, -4);
+        expect(a.dist(b)).is.equals(5);
+    });
+});