use double precision numbers in love.math.noise

src/modules/math/MathModule.h

@@ -132,12 +132,12 @@ private:
 }; // Math
 
 
-static inline float noise1(float x)
+static inline float noise1(double x)
 {
 	return SimplexNoise1234::noise(x) * 0.5f + 0.5f;
 }
 
-static inline float noise2(float x, float y)
+static inline float noise2(double x, double y)
 {
 	return SimplexNoise1234::noise(x, y) * 0.5f + 0.5f;
 }
@@ -145,12 +145,12 @@ static inline float noise2(float x, float y)
 // Perlin noise is used instead of Simplex noise in the 3D and 4D cases to avoid
 // patent issues.
 
-static inline float noise3(float x, float y, float z)
+static inline float noise3(double x, double y, double z)
 {
 	return Noise1234::noise(x, y, z) * 0.5f + 0.5f;
 }
 
-static inline float noise4(float x, float y, float z, float w)
+static inline float noise4(double x, double y, double z, double w)
 {
 	return Noise1234::noise(x, y, z, w) * 0.5f + 0.5f;
 }

src/modules/math/wrap_Math.cpp

@@ -319,10 +319,10 @@ int w_linearToGamma(lua_State *L)
 int w_noise(lua_State *L)
 {
 	int nargs = std::min(std::max(lua_gettop(L), 1), 4);
-	float args[4];
+	double args[4];
 
 	for (int i = 0; i < nargs; i++)
-		args[i] = (float) luaL_checknumber(L, i + 1);
+		args[i] = luaL_checknumber(L, i + 1);
 
 	float val = 0.0f;
 
@@ -349,10 +349,10 @@ int w_noise(lua_State *L)
 // C functions in a struct, necessary for the FFI versions of math functions.
 struct FFI_Math
 {
-	float (*noise1)(float x);
-	float (*noise2)(float x, float y);
-	float (*noise3)(float x, float y, float z);
-	float (*noise4)(float x, float y, float z, float w);
+	float (*noise1)(double x);
+	float (*noise2)(double x, double y);
+	float (*noise3)(double x, double y, double z);
+	float (*noise4)(double x, double y, double z, double w);
 
 	float (*gammaToLinear)(float c);
 	float (*linearToGamma)(float c);

src/modules/math/wrap_Math.lua

@@ -93,10 +93,10 @@ if not status then return end
 pcall(ffi.cdef, [[
 typedef struct FFI_Math
 {
-	float (*noise1)(float x);
-	float (*noise2)(float x, float y);
-	float (*noise3)(float x, float y, float z);
-	float (*noise4)(float x, float y, float z, float w);
+	float (*noise1)(double x);
+	float (*noise2)(double x, double y);
+	float (*noise3)(double x, double y, double z);
+	float (*noise4)(double x, double y, double z, double w);
 
 	float (*gammaToLinear)(float c);
 	float (*linearToGamma)(float c);