54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
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package level
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import (
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"fmt"
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"math"
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"PermissionGacha/db"
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)
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var levelUpRequirementCache [30]int
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func init() {
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for i := 1; i <= 30; i++ {
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//Constructed on Desmos:
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//y=2^{\frac{x}{2}}+.1x^{2}+1.2x-1
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fi := float64(i)
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levelUpRequirementCache[i-1] = int(10000 * (math.Pow(2, fi/2) + 0.1*fi*fi + 1.2*fi - 1))
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}
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}
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func GetLevelAndXP(discordID string) (int, int, error) {
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rawXP, err := db.GetXP(discordID)
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if err != nil {
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return 1, 0, fmt.Errorf("level: GetLevelAndXP: error requesting XP: %w", err)
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}
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level, xp := ConvertXPIntoLevel(rawXP)
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return level, xp, nil
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}
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func GetLevelUpRequirement(level int) int {
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if level <= 0 {
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return 0
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}
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if level == 1 {
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return levelUpRequirementCache[0]
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}
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if level > len(levelUpRequirementCache) {
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return levelUpRequirementCache[len(levelUpRequirementCache)-1]
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}
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return levelUpRequirementCache[level-1] - levelUpRequirementCache[level-2]
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}
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func ConvertXPIntoLevel(xp int) (int, int) {
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if xp < levelUpRequirementCache[0] {
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return 1, xp
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}
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for i := 0; i < 30; i++ {
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if levelUpRequirementCache[i] > xp {
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return i + 1, xp - levelUpRequirementCache[i-1]
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}
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}
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return 30, xp - levelUpRequirementCache[29]
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}
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