perlin.pxd

import cython


#cython: boundscheck=False
#cython: wraparound=False
#cython: cdivision=True


cdef tuple _GRAD3, _GRAD4, _SIMPLEX
cdef double _F2, _G2, _F3, _G3


cdef class BaseNoise:
    cdef public:
        tuple permutation
        int period

    @cython.locals(perm=list, perm_right=int, i=int, j=int)
    cpdef object randomize(self, object period=?)


cdef class SimplexNoise(BaseNoise):

    @cython.locals(s=double, i=double, j=double, t=double, x0=double, y0=double,
                   i1=int, j1=int, x1=double, y1=double, x2=double, y2=double,
                   perm=tuple, ii=int, jj=int, gi0=int, gi1=int, gi2=int,
                   tt=double, g=tuple, noise=double)
    cpdef double noise2(self, double x, double y)
    @cython.locals(s=double, i=double, j=double, k=double, t=double, x0=double, y0=double, z0=double,
                   i1=int, j1=int, k1=int, i2=int, j2=int, k2=int, 
                   x1=double, y1=double, z1=double, x2=double, y2=double, z3=double, x3=double, y3=double, z3=double,
                   perm=tuple, ii=int, jj=int, kk=int, gi0=int, gi1=int, gi2=int, gi3=int,
                   tt=double, g=tuple, noise=double)
    cpdef double noise3(self, double x, double y, double z)