first commit

utils.ts

@@ -0,0 +1,9 @@
+export function lerp(a: number, b: number, amount: number) {
+    return a + (b - a) * amount;
+}
+
+export function lerp2(a: number, b: number, amount1: number, c: number, amount2: number) {
+    const intermediate = a + (b - a) * amount1;
+    return intermediate + (c - intermediate) * amount2;
+}
+