52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_NOISE_BASIS_PATCH_HPP
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#define __UTIL_NOISE_BASIS_PATCH_HPP
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#include "../basis.hpp"
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#include "../../point.hpp"
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namespace util { namespace noise { namespace basis {
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template <typename T>
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struct patch {
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patch (seed_t, T width = 0);
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range<T> bounds (void) const;
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T operator() (point2<T>) const;
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seed_t seed (void) const;
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seed_t seed (seed_t);
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T width (void) const;
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T width (T);
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private:
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point2<T> centroid (util::point2i) const;
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T generate (util::point2i) const;
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static constexpr T THRESHOLD = 1 - T(0.999);
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T m_width;
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T m_power;
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seed_t m_seed;
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};
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} } }
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#include "patch.ipp"
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#endif
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