add Squirrel Eiserloh's rng, and own helper

framework/CMakeLists.txt

@@ -6,6 +6,7 @@ add_subdirectory(logger)
 add_subdirectory(resource_manager)
 add_subdirectory(common_components)
 add_subdirectory(std_utils)
+add_subdirectory(random)
 add_subdirectory(screen_director)
 add_subdirectory(filesystem)
 add_subdirectory(simple_scene)

framework/random/CMakeLists.txt

@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.2)
+project(random CXX)
+
+add_library(random
+	./src/mm/random/srng.hpp
+	./src/mm/random/srng.cpp
+)
+
+target_include_directories(random PUBLIC "src")
+
+target_compile_features(random PUBLIC cxx_std_17)
+
+target_link_libraries(random
+	PUBLIC
+		squirrel_noise
+		std_utils
+)
+
+##############################
+
+#if (BUILD_TESTING)
+	#add_subdirectory(test)
+#endif()
+

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

@@ -0,0 +1,2 @@
+#include "./srng.hpp"
+

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

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <squirrel_noise/RawNoise.hpp>
+#include <mm/scalar_range2.hpp>
+
+namespace MM::Random {
+
+// Seeded (Pseudo-) Random Number Generator
+struct SRNG {
+	uint32_t seed = 1337;
+	int32_t pos = 0;
+
+	// basic
+
+	uint32_t getNext(void) {
+		return SquirrelNoise4::Get1dNoiseUint32(pos++, seed);
+	}
+
+	float zeroToOne(void) {
+		return SquirrelNoise4::Get1dNoiseZeroToOne(pos++, seed);
+	}
+
+	float negOneToOne(void) {
+		return SquirrelNoise4::Get1dNoiseNegOneToOne(pos++, seed);
+	}
+
+	// advanced
+
+	uint32_t minMax(uint32_t min, uint32_t max) {
+		return (getNext() % ((max - min) + 1)) + min;
+	}
+
+	bool roll(float prob) {
+		return zeroToOne() <= prob;
+	}
+
+	// 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();
+	}
+
+	// for conviniece
+	uint32_t operator()(void) {
+		return getNext();
+	}
+
+	bool operator()(float prob) {
+		return roll(prob);
+	}
+};
+
+} // MM::Random
+

framework/std_utils/CMakeLists.txt

@@ -22,4 +22,3 @@ if (BUILD_TESTING)
 	add_subdirectory(test)
 endif()
 
-