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UnsignedByte.scala
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UnsignedByte.scala
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/*
* Copyright 2015 Creative Scala
*
* 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.
*/
package doodle
package core
final case class UnsignedByte(value: Byte) extends AnyVal {
def +(that: UnsignedByte): Int =
this.value + that.value
def -(that: UnsignedByte): Int =
this.value - that.value
def get: Int =
(value + 128)
def toNormalized: Normalized =
Normalized.clip(get.toDouble / UnsignedByte.MaxValue.get.toDouble)
}
object UnsignedByte {
val MinValue = UnsignedByte(-128.toByte)
val MaxValue = UnsignedByte(127.toByte)
def clip(value: Int): UnsignedByte =
value match {
case _ if value < 0 => MinValue
case _ if value > 255 => MaxValue
case v => UnsignedByte((v - 128).toByte)
}
}