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Improvements to the Price class. #7

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Improvements to the Price class. #7

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18 changes: 16 additions & 2 deletions src/main/scala/org/economicsl/core/Price.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,10 @@ case class Price(value: Long) extends AnyVal {
Price(value - that.value)
}

def * (x: Long): Price = {
Price(value * x)
}

def * (quantity: Quantity): Currency = {
value * quantity.value
}
Expand Down Expand Up @@ -62,11 +66,21 @@ object Price {

implicit def mkOrderingOps(lhs: Price): PriceOrdering.Ops = PriceOrdering.mkOrderingOps(lhs)

val zero: Price = Price(0L)
val Zero: Price = Price(0L)

val MaxValue: Price = Price(Long.MaxValue)

val MinValue: Price = zero // this is not restricting prices to be non-negative!
val MinValue: Price = Price(1L)

/** Computes a price that is the largest multiple of a tick size less than some upper bound. */
def largestMultipleOf(tickSize: Currency, lessThan: Price): Price = {
(lessThan / tickSize) * tickSize
}

/** Computes a price that is the smallest multiple of a tick size greater than some lower bound. */
def smallestMultipleOf(tickSize: Currency, greaterThan: Price): Price = {
((greaterThan / tickSize) + MinValue) * tickSize
}

}

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