X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fnoise.hpp;h=cbfd48ee441ad62722490a8f51e4c4150a58484a;hb=1121e49e7cad94ce4efd0a02c72a44469c81494e;hp=26e37668b00f609fdfd2747a2ed6a3e044031729;hpb=7ef94f4e55a0b798eecbcc7166a80b8364b21ea4;p=blank.git

diff --git a/src/noise.hpp b/src/noise.hpp
index 26e3766..cbfd48e 100644
--- a/src/noise.hpp
+++ b/src/noise.hpp
@@ -12,20 +12,20 @@ class GaloisLFSR {
 
 public:
 	// seed should be non-zero
-	explicit GaloisLFSR(std::uint64_t seed);
+	explicit GaloisLFSR(std::uint64_t seed) noexcept;
 
 	// get the next bit
-	bool operator ()();
+	bool operator ()() noexcept;
 
 	template<class T>
-	void operator ()(T &out) {
+	T operator ()(T &out) noexcept {
 		constexpr int num_bits =
 			std::numeric_limits<T>::digits +
 			std::numeric_limits<T>::is_signed;
 		for (int i = 0; i < num_bits; ++i) {
 			operator ()();
 		}
-		out = static_cast<T>(state);
+		return out = static_cast<T>(state);
 	}
 
 private:
@@ -40,16 +40,18 @@ private:
 class SimplexNoise {
 
 public:
-	explicit SimplexNoise(unsigned int seed);
+	explicit SimplexNoise(unsigned int seed) noexcept;
 
-	float operator ()(const glm::vec3 &) const;
+	float operator ()(const glm::vec3 &) const noexcept;
 
 private:
-	unsigned char Perm(size_t idx) const;
-	const glm::vec3 &Grad(size_t idx) const;
+	int Perm(int idx) const noexcept;
+	int Perm12(int idx) const noexcept;
+	const glm::vec3 &Grad(int idx) const noexcept;
 
 private:
-	unsigned char perm[512];
+	int perm[512];
+	int perm12[512];
 	glm::vec3 grad[12];
 
 };
@@ -59,9 +61,9 @@ private:
 class WorleyNoise {
 
 public:
-	explicit WorleyNoise(unsigned int seed);
+	explicit WorleyNoise(unsigned int seed) noexcept;
 
-	float operator ()(const glm::vec3 &) const;
+	float operator ()(const glm::vec3 &) const noexcept;
 
 private:
 	const unsigned int seed;