From 6d205b3b4a3b8b2b1a560a8438b85ffea5af9eaa Mon Sep 17 00:00:00 2001
From: DBotThePony <dbotthepony@yandex.ru>
Date: Thu, 6 Jul 2023 13:13:01 +0700
Subject: [PATCH] Add empty energy storage

---
 .../energy/IMatteryEnergyStorage.kt           | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
index 70efbdc09..53407ac9d 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
@@ -200,6 +200,49 @@ interface IMatteryEnergyStorage : IEnergyStorage {
 	override fun canReceive(): Boolean {
 		return energyFlow.input
 	}
+
+	/**
+	 * Companion object of [IMatteryEnergyStorage] represents empty energy storage
+	 */
+	companion object : IMatteryEnergyStorage {
+		override fun extractEnergy(howMuch: Decimal, simulate: Boolean): Decimal {
+			return Decimal.ZERO
+		}
+
+		override fun receiveEnergy(howMuch: Decimal, simulate: Boolean): Decimal {
+			return Decimal.ZERO
+		}
+
+		override var batteryLevel: Decimal
+			get() = Decimal.ZERO
+			set(value) {}
+		override val maxBatteryLevel: Decimal
+			get() = Decimal.ZERO
+		override val energyFlow: FlowDirection
+			get() = FlowDirection.NONE
+
+		override val canSetBatteryLevel: Boolean
+			get() = false
+
+		override val missingPower: Decimal
+			get() = Decimal.ZERO
+
+		override fun drainBattery(): Boolean {
+			return false
+		}
+
+		override fun fillBattery(): Boolean {
+			return false
+		}
+
+		override fun receiveEnergy(maxReceive: Int, simulate: Boolean): Int {
+			return 0
+		}
+
+		override fun extractEnergy(maxReceive: Int, simulate: Boolean): Int {
+			return 0
+		}
+	}
 }
 
 /**