ipld-eth-server/vendor/gopkg.in/karalabe/cookiejar.v2/ai/utility/utility.go

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// CookieJar - A contestant's algorithm toolbox
// Copyright (c) 2014 Peter Szilagyi. All rights reserved.
//
// CookieJar is dual licensed: use of this source code is governed by a BSD
// license that can be found in the LICENSE file. Alternatively, the CookieJar
// toolbox may be used in accordance with the terms and conditions contained
// in a signed written agreement between you and the author(s).
package utility
// Generic curve function type. Input is automatically normalized to [0, 1]
// prior to passing it to the curve. Outputs is clamped to [0, 1].
type Curve func(float64) float64
// Generic curve function combinator. Input is guaranteed to be in [0, 1].
// Outputs is clamped to [0, 1].
type Combinator func(x, y float64) float64
type utility interface {
Dependency(util utility)
}
type singleUtility interface {
utility
Evaluate() float64
}
type multiUtility interface {
utility
Member(id int) singleUtility
Evaluate(id int) float64
}