go fmt, with some syntax fixes

This commit is contained in:
Kistaro Windrider 2023-11-18 16:27:21 -08:00
parent 0c30e880cc
commit 88737d8f4c
Signed by: kistaro
SSH Key Fingerprint: SHA256:TBE2ynfmJqsAf0CP6gsflA0q5X5wD5fVKWPsZ7eVUg8
4 changed files with 41 additions and 42 deletions

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@ -29,7 +29,6 @@ func RunAuction(g BidderGenerator) (float64, Bidder) {
return prevBid, highBidder return prevBid, highBidder
} }
/** /**
* RunAuctionVerbosely simulates a single-bid second-price auction with no * RunAuctionVerbosely simulates a single-bid second-price auction with no
* reserve price between all bidders emitted by the provided generator, * reserve price between all bidders emitted by the provided generator,
@ -39,7 +38,7 @@ func RunAuction(g BidderGenerator) (float64, Bidder) {
* Use CappedBidderGenerator to limit the size of the auction and therefore * Use CappedBidderGenerator to limit the size of the auction and therefore
* the number of bidders on the list. * the number of bidders on the list.
*/ */
func RunAuctionVerbosely(g BidderGenerator) float64, []Bidder { func RunAuctionVerbosely(g BidderGenerator) (float64, []Bidder) {
var bidders []Bidder var bidders []Bidder
for b, ok := g.Generate(); ok; b, ok = g.Generate() { for b, ok := g.Generate(); ok; b, ok = g.Generate() {
bidders = append(bidders, b) bidders = append(bidders, b)

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@ -5,25 +5,25 @@ package auctionsim
* not threadsafe. It is a pure value type. * not threadsafe. It is a pure value type.
*/ */
type Bidder struct { type Bidder struct {
/** /**
* Value stores the real value of the item being auctioned, to this bidder. * Value stores the real value of the item being auctioned, to this bidder.
* If the bidder won the auction at this price, they would make exactly * If the bidder won the auction at this price, they would make exactly
* zero effective profit. It is the "rational bid" in a perfectly efficient * zero effective profit. It is the "rational bid" in a perfectly efficient
* marketplace. * marketplace.
* *
* A bidder that wants some nonzero profit has a lower value on the item by * A bidder that wants some nonzero profit has a lower value on the item by
* the amount of profit they want -- that "minimum payoff" represents an * the amount of profit they want -- that "minimum payoff" represents an
* unspecified cost for the time and effort of doing the project at all. * unspecified cost for the time and effort of doing the project at all.
* Other costs for getting value out of the object also decrease its value. * Other costs for getting value out of the object also decrease its value.
* *
* For example, a city to which hosting an F1 race is worth five billion * For example, a city to which hosting an F1 race is worth five billion
* dollars, but would spend three and a half billion dollars setting up for * dollars, but would spend three and a half billion dollars setting up for
* it, one billion dollars running it, and lose one billion dollars of tax * it, one billion dollars running it, and lose one billion dollars of tax
* revenue due to business disruption during setup and during the event, * revenue due to business disruption during setup and during the event,
* correctly values the race for negative five hundred million dollars. As * correctly values the race for negative five hundred million dollars. As
* demonstrated by this example, a value can be negative. * demonstrated by this example, a value can be negative.
* *
*/ */
Value float64 Value float64
/** /**
@ -79,7 +79,7 @@ func (b Bidder) BidCeiling() float64 {
* than their calculated ceiling if they had the money to do so, but they don't. * than their calculated ceiling if they had the money to do so, but they don't.
*/ */
func (b Bidder) CashCapped() bool { func (b Bidder) CashCapped() bool {
return b.ValueBelief() > b.Cash; return b.ValueBelief() > b.Cash
} }
/** /**

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@ -10,9 +10,9 @@ import (
*/ */
func NormalestDistribution() *NormalDistribution { func NormalestDistribution() *NormalDistribution {
return &NormalDistribution{ return &NormalDistribution{
Rand: rand.New(rand.NewSource(int64(rand.Uint64()))), Rand: rand.New(rand.NewSource(int64(rand.Uint64()))),
StdDev: 1, StdDev: 1,
Mean: 0, Mean: 0,
} }
} }
@ -24,8 +24,8 @@ func NormalestDistribution() *NormalDistribution {
func NormalestBidderGenerator() BidderGenerator { func NormalestBidderGenerator() BidderGenerator {
d := NormalestDistribution() d := NormalestDistribution()
return &BiddersFromDistributions{ return &BiddersFromDistributions{
Values: d, Values: d,
Irrationalities: d, Irrationalities: d,
Bankrolls: ConstDistribution(math.Inf(1)), Bankrolls: ConstDistribution(math.Inf(1)),
} }
} }

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@ -12,7 +12,7 @@ type Distribution interface {
* Draw returns the next float64 from the distribution and true, or * Draw returns the next float64 from the distribution and true, or
* zero and false if the distribution is exhausted or otherwise unusable. * zero and false if the distribution is exhausted or otherwise unusable.
*/ */
Draw() float64, bool Draw() (float64, bool)
} }
/** /**
@ -23,7 +23,7 @@ type BidderGenerator interface {
* Generate returns the next Bidder and true, or a zero Bidder and false if * Generate returns the next Bidder and true, or a zero Bidder and false if
* the generator is exhausted or otherwise unusable. * the generator is exhausted or otherwise unusable.
*/ */
Generate() Bidder, bool Generate() (Bidder, bool)
} }
/** /**
@ -31,9 +31,9 @@ type BidderGenerator interface {
* irrationality levels, and cash on hand from the provided distributions. * irrationality levels, and cash on hand from the provided distributions.
*/ */
type BiddersFromDistributions struct { type BiddersFromDistributions struct {
Values Distribution Values Distribution
Irrationalities Distribution Irrationalities Distribution
Bankrolls Distribution Bankrolls Distribution
} }
/** /**
@ -53,10 +53,10 @@ func (b *BiddersFromDistributions) Generate() (Bidder, bool) {
return Bidder{}, false return Bidder{}, false
} }
return Bidder { return Bidder{
Value: value, Value: value,
Irrationality: irrationality, Irrationality: irrationality,
Cash: cash, Cash: cash,
}, true }, true
} }
@ -67,16 +67,16 @@ func (b *BiddersFromDistributions) Generate() (Bidder, bool) {
* (since rand.Rand is not threadsafe). * (since rand.Rand is not threadsafe).
*/ */
type NormalDistribution struct { type NormalDistribution struct {
Rand *rand.Rand Rand *rand.Rand
StdDev float64 StdDev float64
Mean float64 Mean float64
} }
/** /**
* Draw implements Distribution. * Draw implements Distribution.
*/ */
func (n *NormalDistribution) Draw() (float64, bool) { func (n *NormalDistribution) Draw() (float64, bool) {
return n.Rand.NormFloat64() * n.StdDev + n.Mean, true return n.Rand.NormFloat64()*n.StdDev + n.Mean, true
} }
/** /**
@ -88,7 +88,7 @@ type ConstDistribution float64
* Draw implements Distribution. * Draw implements Distribution.
*/ */
func (c ConstDistribution) Draw() (float64, bool) { func (c ConstDistribution) Draw() (float64, bool) {
return (float64)c, true return float64(c), true
} }
/** /**
@ -96,7 +96,7 @@ func (c ConstDistribution) Draw() (float64, bool) {
* then stops returning values. * then stops returning values.
*/ */
type CappedDistribution struct { type CappedDistribution struct {
D Distribution D Distribution
Lim int64 Lim int64
} }
@ -116,7 +116,7 @@ func (c *CappedDistribution) Draw() (float64, bool) {
* BidderGenerator, then stops returning values. * BidderGenerator, then stops returning values.
*/ */
type CappedBidderGenerator struct { type CappedBidderGenerator struct {
G BidderGenerator G BidderGenerator
Lim int64 Lim int64
} }