libcruft-util/noise/basis/perlin.hpp

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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2012-2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_NOISE_BASIS_PERLIN_HPP
#define __UTIL_NOISE_BASIS_PERLIN_HPP
#include "./gradient.hpp"
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#include "./type/gradient.hpp"
#include "../fwd.hpp"
#include "../../point.hpp"
#include "../../range.hpp"
namespace util { namespace noise { namespace basis {
/// Perlin: interpolated value across each grid space
template <
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size_t S, // point point dimensionality
typename T, // arithmetic and result value_type, must be floating point
lerp_t<T> L, // gradient interpolation function
template < // gradient provider class, must provide generate(point_t)
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size_t,
typename,
lerp_t<T>
> class G = gradient
>
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struct perlin : public G<S,T,L>, public type::gradient<S> {
perlin (seed_t);
range<T> bounds (void) const;
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T operator() (point<S,T>) const;
};
} } }
#include "perlin.ipp"
#endif