ChanceConditionInterpreter.kt

package io.github.lishangbu.avalon.game.battle.engine.core.runtime.condition

import io.github.lishangbu.avalon.game.battle.engine.core.dsl.ConditionNode
import io.github.lishangbu.avalon.game.battle.engine.core.dsl.condition.ChanceConditionNode
import io.github.lishangbu.avalon.game.battle.engine.core.event.EventContext
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.ConditionInterpreter
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.support.ChanceRollReader
import io.github.lishangbu.avalon.game.battle.engine.core.type.ConditionTypeId
import io.github.lishangbu.avalon.game.battle.engine.core.type.StandardConditionTypeIds

/**
 * `chance` 条件解释器。
 */
class ChanceConditionInterpreter : ConditionInterpreter {
    override val type: ConditionTypeId = StandardConditionTypeIds.CHANCE

    override fun evaluate(
        condition: ConditionNode,
        context: EventContext,
    ): Boolean {
        require(condition is ChanceConditionNode) { "Condition must be ChanceConditionNode." }
        val roll: Int = ChanceRollReader.read(context)
        return roll in 1..condition.value
    }
}