2 files changed, 45 insertions, 0 deletions
diff --git a/src/mind/topology.js b/src/mind/topology.js
new file mode 100644
index 0000000..58e229e
--- /dev/null
+++ b/src/mind/topology.js
@@ -0,0 +1,14 @@
+'use strict';
+
+
+const PointProto = {
+	
+};
+
+
+export function Point(layer, index) {
+	return Object.freeze({
+		layer,
+		index,
+	});
+}
diff --git a/src/mind/topology.test.js b/src/mind/topology.test.js
new file mode 100644
index 0000000..421eb17
--- /dev/null
+++ b/src/mind/topology.test.js
@@ -0,0 +1,31 @@
+'use strict';
+
+import { Point } from './topology';
+
+test('Point works correctly', () => {
+	const p = Point(0, 1);
+	expect(p.layer).toBe(0);
+	expect(p.index).toBe(1);
+	expect(() => p.layer = 5).toThrow();
+});
+
+
+test('Point equality works correctly', () => {
+	const a00 = Point(0, 0);
+	const b00 = Point(0, 0);
+	const a01 = Point(0, 1);
+	const b01 = Point(0, 1);
+	const a10 = Point(1, 0);
+	const b10 = Point(1, 0);
+	const a11 = Point(1, 1);
+	const b11 = Point(1, 1);
+
+	expect(a00 == b00).toBeTruthy();
+	expect(a01 == b01).toBeTruthy();
+	expect(a10 == b10).toBeTruthy();
+	expect(a11 == b11).toBeTruthy();
+
+	expect(a00 == a01).toBeFalsy();
+	expect(a00 == a10).toBeFalsy();
+	expect(a00 == a11).toBeFalsy();
+});