92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
package d2datadict
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import (
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"log"
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"strconv"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2txt"
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)
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// A helper type for item drop calculation
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type dropRatioInfo struct {
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frequency int
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divisor int
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divisorMin int
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}
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// ItemRatioRecord encapsulates information found in ItemRatio.txt, it specifies drop ratios
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// for various types of items
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// The information has been gathered from [https://d2mods.info/forum/kb/viewarticle?a=387]
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type ItemRatioRecord struct {
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Function string
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// 0 for classic, 1 for LoD
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Version bool
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// 0 for normal, 1 for exceptional
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Uber bool
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ClassSpecific bool
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// All following fields are used in item drop calculation
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UniqueDropInfo dropRatioInfo
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RareDropInfo dropRatioInfo
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SetDropInfo dropRatioInfo
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MagicDropInfo dropRatioInfo
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HiQualityDropInfo dropRatioInfo
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NormalDropInfo dropRatioInfo
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}
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// ItemRatios holds all of the ItemRatioRecords from ItemRatio.txt
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var ItemRatios map[string]*ItemRatioRecord //nolint:gochecknoglobals // Currently global by design
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// LoadItemRatios loads all of the ItemRatioRecords from ItemRatio.txt
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func LoadItemRatios(file []byte) {
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ItemRatios = make(map[string]*ItemRatioRecord)
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d := d2txt.LoadDataDictionary(file)
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for d.Next() {
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record := &ItemRatioRecord{
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Function: d.String("Function"),
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Version: d.Bool("Version"),
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Uber: d.Bool("Uber"),
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ClassSpecific: d.Bool("Class Specific"),
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UniqueDropInfo: dropRatioInfo{
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frequency: d.Number("Unique"),
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divisor: d.Number("UniqueDivisor"),
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divisorMin: d.Number("UniqueMin"),
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},
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RareDropInfo: dropRatioInfo{
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frequency: d.Number("Rare"),
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divisor: d.Number("RareDivisor"),
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divisorMin: d.Number("RareMin"),
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},
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SetDropInfo: dropRatioInfo{
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frequency: d.Number("Set"),
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divisor: d.Number("SetDivisor"),
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divisorMin: d.Number("SetMin"),
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},
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MagicDropInfo: dropRatioInfo{
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frequency: d.Number("Magic"),
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divisor: d.Number("MagicDivisor"),
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divisorMin: d.Number("MagicMin"),
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},
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HiQualityDropInfo: dropRatioInfo{
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frequency: d.Number("HiQuality"),
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divisor: d.Number("HiQualityDivisor"),
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divisorMin: 0,
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},
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NormalDropInfo: dropRatioInfo{
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frequency: d.Number("Normal"),
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divisor: d.Number("NormalDivisor"),
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divisorMin: 0,
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},
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}
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ItemRatios[record.Function+strconv.FormatBool(record.Version)] = record
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}
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if d.Err != nil {
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panic(d.Err)
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}
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log.Printf("Loaded %d ItemRatio records", len(ItemRatios))
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}
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