initHEADmain

1 files changed, 38 insertions, 0 deletions

diff --git a/src/V2.ts b/src/V2.ts
new file mode 100644
index 0000000..5ef60b3
--- /dev/null
+++ b/src/V2.ts
@@ -0,0 +1,38 @@
+export default class V2 {
+  readonly x: number;
+  readonly y: number;
+
+  constructor(x: number, y: number) {
+    this.x = x;
+    this.y = y;
+  }
+
+  static get zero() {
+    return new V2(0, 0);
+  }
+
+  toString() {
+    return `(${this.x}, ${this.y})`;
+  }
+
+  *[Symbol.iterator]() {
+    yield this.x;
+    yield this.y;
+  }
+
+  scale(factor: number) {
+    return new V2(this.x * factor, this.y * factor);
+  }
+
+  get neg() {
+    return this.scale(-1);
+  }
+
+  add(other: V2) {
+    return new V2(this.x + other.x, this.y + other.y);
+  }
+
+  sub(other: V2) {
+    return this.add(other.neg);
+  }
+}