20 lines
510 B
Kotlin
20 lines
510 B
Kotlin
package net.shadowfacts.cacao.util
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/**
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* @author shadowfacts
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*/
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object EnumHelper {
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fun <E: Enum<E>> next(value: E): E {
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val constants = value.declaringClass.enumConstants
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val index = constants.indexOf(value) + 1
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return if (index < constants.size) constants[index] else constants.first()
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}
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fun <E: Enum<E>> previous(value: E): E {
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val constants = value.declaringClass.enumConstants
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val index = constants.indexOf(value) - 1
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return if (index >= 0) constants[index] else constants.last()
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}
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} |