Merge pull request godotengine#94441 from Repiteo/core/math-namespace

Core: Convert `Math` class to namespace

Author: Repiteo

core/io/resource.cpp

@@ -32,6 +32,7 @@
 
 #include "core/io/resource_loader.h"
 #include "core/math/math_funcs.h"
+#include "core/math/random_pcg.h"
 #include "core/os/os.h"
 #include "scene/main/node.h" //only so casting works
 
@@ -113,7 +114,7 @@ void Resource::set_path_cache(const String &p_path) {
 	GDVIRTUAL_CALL(_set_path_cache, p_path);
 }
 
-static thread_local RandomPCG unique_id_gen(0, RandomPCG::DEFAULT_INC);
+static thread_local RandomPCG unique_id_gen = RandomPCG(0);
 
 void Resource::seed_scene_unique_id(uint32_t p_seed) {
 	unique_id_gen.seed(p_seed);

core/math/math_funcs.cpp

@@ -31,18 +31,19 @@
 #include "math_funcs.h"
 
 #include "core/error/error_macros.h"
+#include "core/math/random_pcg.h"
 
-RandomPCG Math::default_rand(RandomPCG::DEFAULT_SEED, RandomPCG::DEFAULT_INC);
+static RandomPCG default_rand;
 
-uint32_t Math::rand_from_seed(uint64_t *seed) {
-	RandomPCG rng = RandomPCG(*seed, RandomPCG::DEFAULT_INC);
+uint32_t Math::rand_from_seed(uint64_t *p_seed) {
+	RandomPCG rng = RandomPCG(*p_seed);
 	uint32_t r = rng.rand();
-	*seed = rng.get_seed();
+	*p_seed = rng.get_seed();
 	return r;
 }
 
-void Math::seed(uint64_t x) {
-	default_rand.seed(x);
+void Math::seed(uint64_t p_value) {
+	default_rand.seed(p_value);
 }
 
 void Math::randomize() {
@@ -53,8 +54,8 @@ uint32_t Math::rand() {
 	return default_rand.rand();
 }
 
-double Math::randfn(double mean, double deviation) {
-	return default_rand.randfn(mean, deviation);
+double Math::randfn(double p_mean, double p_deviation) {
+	return default_rand.randfn(p_mean, p_deviation);
 }
 
 int Math::step_decimals(double p_step) {
@@ -168,14 +169,14 @@ uint32_t Math::larger_prime(uint32_t p_val) {
 	}
 }
 
-double Math::random(double from, double to) {
-	return default_rand.random(from, to);
+double Math::random(double p_from, double p_to) {
+	return default_rand.random(p_from, p_to);
 }
 
-float Math::random(float from, float to) {
-	return default_rand.random(from, to);
+float Math::random(float p_from, float p_to) {
+	return default_rand.random(p_from, p_to);
 }
 
-int Math::random(int from, int to) {
-	return default_rand.random(from, to);
+int Math::random(int p_from, int p_to) {
+	return default_rand.random(p_from, p_to);
 }