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PermissionGacha/xp.go

88 lines
1.9 KiB
Go

package main
import (
"fmt"
"math"
"sync"
"time"
"github.com/bwmarrin/discordgo"
"PermissionGacha/db"
)
const notInGeneralNerf = 10
const generalChannelID = "645550570001924098"
var lastMessage = make(map[string]time.Time)
var incrementMutex = sync.Mutex{}
var levelUpRequirementCache [30]int
func init() {
for i := 1; i <= 30; i++ {
//Constructed on Desmos:
//y=2^{\frac{x}{2}}+.1x^{2}+1.2x-1
fi := float64(i)
levelUpRequirementCache[i-1] = int(10000 * (math.Pow(2, fi/2) + 0.1*fi*fi + 1.2*fi - 1))
}
}
func incrementXP(s *discordgo.Session, m *discordgo.MessageCreate) {
amountToIncrement := calculateIncrement(m.Author.ID)
if m.ChannelID != generalChannelID {
amountToIncrement /= notInGeneralNerf
}
multiplier, err := db.GetPrestigeMultiplier(m.Author.ID)
if err != nil {
logError(s, err)
return
}
amountToIncrement *= multiplier
err = db.IncrementXP(m.Author.ID, amountToIncrement)
if err != nil {
logError(s, err)
return
}
addToLevelQueue(m.Author.ID)
}
func calculateIncrement(discordID string) int {
incrementMutex.Lock()
defer incrementMutex.Unlock()
now := time.Now()
delta := now.Sub(lastMessage[discordID])
lastMessage[discordID] = now
if delta.Seconds() < 0 {
return 0
}
//Constructed on Desmos:
//y=\frac{100}{\left(1+e^{-\left(\frac{x}{2}-5\right)}\right)}
return int(100 / (1 + math.Pow(math.E, -((delta.Seconds()/2)-5))))
}
func convertXPIntoLevel(xp int) (int, int) {
if xp < levelUpRequirementCache[0] {
return 1, xp
}
for i := 0; i < 30; i++ {
if levelUpRequirementCache[i] > xp {
return i + 1, xp - levelUpRequirementCache[i-1]
}
}
return 30, xp - levelUpRequirementCache[29]
}
func getLevelAndXP(discordID string) (int, int, error) {
rawXP, err := db.GetXP(discordID)
if err != nil {
return 1, 0, fmt.Errorf("xp: getLevelAndXP: error requesting XP: %w", err)
}
level, xp := convertXPIntoLevel(rawXP)
return level, xp, nil
}