libcruft-util/noise/basis/patch.hpp

52 lines
1.3 KiB
C++

/*
* 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 2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_NOISE_BASIS_PATCH_HPP
#define __UTIL_NOISE_BASIS_PATCH_HPP
#include "./type/distance.hpp"
#include "../fwd.hpp"
#include "../../point.hpp"
namespace util { namespace noise { namespace basis {
template <size_t S, typename T>
struct patch : public type::distance<S,2> {
patch (seed_t, T width = 0);
range<T> bounds (void) const;
T operator() (point<S,T>) const noexcept;
seed_t seed (void) const;
seed_t seed (seed_t);
T width (void) const;
T width (T);
private:
static constexpr T THRESHOLD = 1 - T(0.999);
T m_width;
T m_power;
seed_t m_seed;
};
} } }
#include "patch.ipp"
#endif