add item spawner

rng.cpp

@@ -0,0 +1,17 @@
+//
+// Created by Grant Horner on 12/1/25.
+//
+
+#include "rng.h"
+
+float Rng::generate() {
+    return static_cast<float>(rng()) / static_cast<float>(std::mt19937::max());
+}
+
+float Rng::generate(const uint32_t max) {
+    return generate() * static_cast<float>(max);
+}
+
+float Rng::generate(const int min, const int max) {
+    return generate() * (static_cast<float>(max) - static_cast<float>(min)) + static_cast<float>(min);
+}