CopyBoostsActionExecutor.kt

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

import io.github.lishangbu.avalon.game.battle.engine.core.dsl.ActionNode
import io.github.lishangbu.avalon.game.battle.engine.core.dsl.action.CopyBoostsActionNode
import io.github.lishangbu.avalon.game.battle.engine.core.event.EventContext
import io.github.lishangbu.avalon.game.battle.engine.core.mutation.SetBoostsMutation
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.ActionExecutor
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.ActionResult
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.support.BattleStoredBoostSupport
import io.github.lishangbu.avalon.game.battle.engine.core.runtime.support.EventContextTargetResolver
import io.github.lishangbu.avalon.game.battle.engine.core.type.ActionTypeId
import io.github.lishangbu.avalon.game.battle.engine.core.type.StandardActionTypeIds

/**
 * `copy_boosts` 动作执行器。
 */
class CopyBoostsActionExecutor : ActionExecutor {
    override val type: ActionTypeId = StandardActionTypeIds.COPY_BOOSTS

    override fun execute(
        action: ActionNode,
        context: EventContext,
    ): ActionResult {
        require(action is CopyBoostsActionNode) { "Action must be CopyBoostsActionNode." }
        val sourceUnit = EventContextTargetResolver.resolveSingleUnit(action.from, context) ?: return ActionResult()
        val selectedBoosts =
            BattleStoredBoostSupport.select(
                boosts = sourceUnit.boosts,
                selection = action.selection,
                stats = action.stats,
            )
        return ActionResult(
            mutations = listOf(SetBoostsMutation(action.target, selectedBoosts)),
        )
    }
}