QuantumArmor will reduce damage at the cost of energy. Closes #2302

src/main/java/techreborn/TechReborn.java

@@ -42,6 +42,7 @@ import reborncore.common.util.Torus;
 import techreborn.client.GuiType;
 import techreborn.compat.trinkets.Trinkets;
 import techreborn.config.TechRebornConfig;
+import techreborn.events.ApplyArmorToDamageHandler;
 import techreborn.events.ModRegistry;
 import techreborn.events.UseBlockHandler;
 import techreborn.init.*;
@@ -72,6 +73,7 @@ public class TechReborn implements ModInitializer {
 		new Configuration(TechRebornConfig.class, "techreborn");
 
 		// Done to force the class to load
+		//noinspection ResultOfMethodCallIgnored
 		ModRecipes.GRINDER.getName();
 
 		ClientboundPackets.init();
@@ -93,6 +95,7 @@ public class TechReborn implements ModInitializer {
 		TRDispenserBehavior.init();
 		PoweredCraftingHandler.setup();
 		UseBlockHandler.init();
+		ApplyArmorToDamageHandler.init();
 		FuelRecipes.init();
 
 		Torus.genSizeMap(TechRebornConfig.fusionControlComputerMaxCoilSize);

src/main/java/techreborn/config/TechRebornConfig.java

@@ -292,6 +292,9 @@ public class TechRebornConfig {
 	@Config(config = "items", category = "power", key = "quantumSuitFireExtinguishCost", comment = "Quantum Suit Cost for Fire Extinguish")
 	public static double fireExtinguishCost = 50;
 
+	@Config(config = "items", category = "power", key = "quantumSuitDamageAbsorbCost", comment = "Quantum Suit Cost for Damage Absorbed")
+	public static double damageAbsorbCost = 10;
+
 	@Config(config = "items", category = "upgrades", key = "overclcoker_speed", comment = "Overclocker behavior speed multipiler")
 	public static double overclockerSpeed = 0.25;
 

src/main/java/techreborn/events/ApplyArmorToDamageHandler.java

@@ -0,0 +1,62 @@
+/*
+ * This file is part of TechReborn, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2020 TechReborn
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package techreborn.events;
+
+import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import reborncore.api.events.ApplyArmorToDamageCallback;
+import team.reborn.energy.Energy;
+import techreborn.config.TechRebornConfig;
+import techreborn.items.armor.QuantumSuitItem;
+
+public class ApplyArmorToDamageHandler implements ApplyArmorToDamageCallback {
+
+	public static void init() {
+		ApplyArmorToDamageCallback.EVENT.register(new ApplyArmorToDamageHandler());
+	}
+
+	@Override
+	public float applyArmorToDamage(PlayerEntity player, DamageSource source, float amount) {
+		double damageAbsorbed = 0.0d;
+		for (ItemStack stack : player.getArmorItems()) {
+			if (!(stack.getItem() instanceof QuantumSuitItem)) {
+				continue;
+			}
+
+			double stackEnergy = Energy.of(stack).getEnergy();
+			if (stackEnergy == 0.0d) {
+				continue;
+			}
+
+			double damageToAbsorb = Math.min(stackEnergy, amount * 0.2d);
+			if (Energy.of(stack).use(damageToAbsorb * TechRebornConfig.damageAbsorbCost)) {
+				damageAbsorbed += damageToAbsorb;
+			}
+		}
+
+		return amount - (float) damageAbsorbed;
+	}
+}