AttributeEqualsConditionInterpreter.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.AttributeEqualsConditionNode
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.EventContextAttributeReader
import io.github.lishangbu.avalon.game.battle.engine.core.type.ConditionTypeId
import io.github.lishangbu.avalon.game.battle.engine.core.type.StandardConditionTypeIds

/**
 * `attribute_equals` 条件解释器。
 */
class AttributeEqualsConditionInterpreter : ConditionInterpreter {
    override val type: ConditionTypeId = StandardConditionTypeIds.ATTRIBUTE_EQUALS

    override fun evaluate(
        condition: ConditionNode,
        context: EventContext,
    ): Boolean {
        require(condition is AttributeEqualsConditionNode) { "Condition must be AttributeEqualsConditionNode." }
        return EventContextAttributeReader.readString(condition.key, context) == condition.value
    }
}