Expose `randfn` to global scope

3 files changed, 10 insertions, 0 deletions

diff --git a/core/math/math_funcs.cpp b/core/math/math_funcs.cpp
index bbed257f60..2b6d92fe0e 100644
--- a/core/math/math_funcs.cpp
+++ b/core/math/math_funcs.cpp
@@ -53,6 +53,10 @@ uint32_t Math::rand() {
 	return default_rand.rand();
 }
 
+double Math::randfn(double mean, double deviation) {
+	return default_rand.randfn(mean, deviation);
+}
+
 int Math::step_decimals(double p_step) {
 	static const int maxn = 10;
 	static const double sd[maxn] = {
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h
index e3b990d48f..8df45255c9 100644
--- a/core/math/math_funcs.h
+++ b/core/math/math_funcs.h
@@ -318,6 +318,7 @@ public:
 	static uint32_t rand();
 	static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_32BIT_MAX; }
 	static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_32BIT_MAX; }
+	static double randfn(double mean, double deviation);
 
 	static double random(double from, double to);
 	static float random(float from, float to);
diff --git a/core/variant/variant_utility.cpp b/core/variant/variant_utility.cpp
index 83fa4bde69..554b2f1c25 100644
--- a/core/variant/variant_utility.cpp
+++ b/core/variant/variant_utility.cpp
@@ -403,6 +403,10 @@ struct VariantUtilityFunctions {
 		return Math::randf();
 	}
 
+	static inline double randfn(double mean, double deviation) {
+		return Math::randfn(mean, deviation);
+	}
+
 	static inline int64_t randi_range(int64_t from, int64_t to) {
 		return Math::random((int32_t)from, (int32_t)to);
 	}
@@ -1239,6 +1243,7 @@ void Variant::_register_variant_utility_functions() {
 	FUNCBINDR(randf, sarray(), Variant::UTILITY_FUNC_TYPE_RANDOM);
 	FUNCBINDR(randi_range, sarray("from", "to"), Variant::UTILITY_FUNC_TYPE_RANDOM);
 	FUNCBINDR(randf_range, sarray("from", "to"), Variant::UTILITY_FUNC_TYPE_RANDOM);
+	FUNCBINDR(randfn, sarray("mean", "deviation"), Variant::UTILITY_FUNC_TYPE_RANDOM);
 	FUNCBIND(seed, sarray("base"), Variant::UTILITY_FUNC_TYPE_RANDOM);
 	FUNCBINDR(rand_from_seed, sarray("seed"), Variant::UTILITY_FUNC_TYPE_RANDOM);