basic setup

libs/math.js

@@ -0,0 +1,22 @@
+export function clamp(min, input, max) {
+    return Math.max(min, Math.min(input, max))
+}
+
+export function mapRange(in_min, in_max, input, out_min, out_max) {
+    return (
+        ((input - in_min) * (out_max - out_min)) / (in_max - in_min) + out_min
+    )
+}
+
+export function lerp(start, end, amt) {
+    return (1 - amt) * start + amt * end
+}
+
+export function truncate(value, decimals) {
+    return parseFloat(value.toFixed(decimals))
+}
+
+export function wrapValue(value, lowBound, highBound) {
+    const range = highBound - lowBound
+    return ((((value - lowBound) % range) + range) % range) + lowBound
+}