srng: impl floating point numbers and make std dist compat

framework/random/src/mm/random/srng.cpp

@@ -1,2 +1,16 @@
 #include "./srng.hpp"
 
+namespace MM::Random {
+
+template<>
+double SRNG::range(const ScalarRange2<double>& range) {
+	return zeroToOne() * (range.max() - range.min()) + range.min();
+}
+
+template<>
+float SRNG::range(const ScalarRange2<float>& range) {
+	return zeroToOne() * (range.max() - range.min()) + range.min();
+}
+
+} // MM::Random
+

framework/random/src/mm/random/srng.hpp

@@ -37,7 +37,6 @@ struct SRNG {
 	// more advanced
 
 	// inclusive
-	// TODO: test for floats
 	template<typename T>
 	T range(const ScalarRange2<T>& range) {
 		return (getNext() % ((range.max() - range.min()) + 1)) + range.min();
@@ -51,7 +50,22 @@ struct SRNG {
 	bool operator()(float prob) {
 		return roll(prob);
 	}
+
+	// std:: distributions need those
+	constexpr static uint32_t min(void) {
+		return 0;
+	}
+
+	constexpr static uint32_t max(void) {
+		return 0xffffffff;
+	}
 };
 
+template<>
+double SRNG::range(const ScalarRange2<double>& range);
+
+template<>
+float SRNG::range(const ScalarRange2<float>& range);
+
 } // MM::Random
 

framework/std_utils/src/mm/scalar_range2.hpp

@@ -9,6 +9,11 @@ struct ScalarRange2 {
 
 	ScalarRange2(void) = default;
 
+	ScalarRange2(const T& both) noexcept {
+		v_min = both;
+		v_max = both;
+	}
+
 	ScalarRange2(const T& min, const T& max) noexcept {
 		if (min <= max) {
 			v_min = min;