TGUI v3.0

This ports TGUI, and makes the old nano crew monitor and the disposal
bins use it as first examples.

tgui/packages/common/vector.js

@@ -0,0 +1,48 @@
+import { map, reduce, zipWith } from './collections';
+
+/**
+ * Creates a vector, with as many dimensions are there are arguments.
+ */
+export const vecCreate = (...components) => {
+  if (Array.isArray(components[0])) {
+    return [...components[0]];
+  }
+  return components;
+};
+
+const ADD = (a, b) => a + b;
+const SUB = (a, b) => a - b;
+const MUL = (a, b) => a * b;
+const DIV = (a, b) => a / b;
+
+export const vecAdd = (...vecs) => {
+  return reduce((a, b) => zipWith(ADD)(a, b))(vecs);
+};
+
+export const vecSubtract = (...vecs) => {
+  return reduce((a, b) => zipWith(SUB)(a, b))(vecs);
+};
+
+export const vecMultiply = (...vecs) => {
+  return reduce((a, b) => zipWith(MUL)(a, b))(vecs);
+};
+
+export const vecDivide = (...vecs) => {
+  return reduce((a, b) => zipWith(DIV)(a, b))(vecs);
+};
+
+export const vecScale = (vec, n) => {
+  return map(x => x * n)(vec);
+};
+
+export const vecInverse = vec => {
+  return map(x => -x)(vec);
+};
+
+export const vecLength = vec => {
+  return Math.sqrt(reduce(ADD)(zipWith(MUL)(vec, vec)));
+};
+
+export const vecNormalize = vec => {
+  return vecDivide(vec, vecLength(vec));
+};