[M] Move utils to scripts

src/scripts/utils.ts

@@ -0,0 +1,89 @@
+import {Options, Vue} from "vue-class-component";
+import {withKeys} from "vue";
+import {NodeLib} from "three/examples/jsm/nodes/core/NodeLib";
+import keywords = NodeLib.keywords;
+
+/**
+ * Same as python's range
+ *
+ * Ways of calling this function:
+ * range(to)
+ * range(from, to)
+ * range(from, to, step)
+ *
+ * @param fromOrTo Either from or to. From is inclusive
+ * @param to to, Not inclusive
+ * @param step Step
+ */
+export function range(fromOrTo: number, to?: number, step = 1): number[]
+{
+    const from = to !== undefined ? fromOrTo : 0
+    to = to !== undefined ? to : fromOrTo
+
+    if (to == from) return []
+    const mul = to > from ? 1 : -1
+
+    return [...Array(Math.floor((Math.abs(to - from)) / step))].map((_, i) => from + i * step * mul);
+}
+
+/**
+ * Make sure that the value is between a min and a max
+ *
+ * @param val
+ * @param min
+ * @param max
+ */
+export function minMax(val: number, min: number, max: number): number
+{
+    return val > max ? max : val < min ? min: val
+}
+
+/**
+ * Keybinds[key string] = (event) => Prevent default or not (Default: true)
+ */
+export type Keybinds = {[id: string]: (e: KeyboardEvent) => unknown}
+
+/**
+ * Key handler mixin
+ */
+export class KeyHandler extends Vue
+{
+    keybinds: Keybinds = {}
+    _keybinds: Keybinds = {}
+
+    initKeybinds(): void
+    {
+        return
+    }
+
+    mounted(): void
+    {
+        document.addEventListener('keydown', this.keyListener)
+        this.initKeybinds()
+        Object.keys(this.keybinds).forEach(it => this._keybinds[it.toLowerCase()] = this.keybinds[it])
+    }
+
+    unmounted(): void
+    {
+        document.removeEventListener('keydown', this.keyListener)
+    }
+
+    keyListener(e: KeyboardEvent): void
+    {
+        let key = e.key
+        if (e.shiftKey) key = 'Shift' + key
+        if (e.altKey) key = 'Alt' + key
+        if (e.ctrlKey) key = 'Ctrl' + key
+        if (e.metaKey) key = 'Cmd' + key
+        key = key.toLowerCase()
+        console.log(key)
+
+        if (key in this._keybinds)
+        {
+            if (this._keybinds[key](e) !== false)
+            {
+                e.preventDefault()
+            }
+        }
+    }
+}