Added event for application of armor to damage received

src/main/java/reborncore/api/events/ApplyArmorToDamageCallback.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of RebornCore, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2021 TeamReborn
+ *
+ * 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 reborncore.api.events;
+
+import net.fabricmc.fabric.api.event.Event;
+import net.fabricmc.fabric.api.event.EventFactory;
+import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.entity.player.PlayerEntity;
+
+public interface ApplyArmorToDamageCallback {
+
+	Event<ApplyArmorToDamageCallback> EVENT = EventFactory.createArrayBacked(ApplyArmorToDamageCallback.class,
+			(listeners) -> (player, damageSource, amount) -> {
+				float damageAmount = amount;
+				for (ApplyArmorToDamageCallback listener : listeners){
+					damageAmount = listener.applyArmorToDamage(player, damageSource, damageAmount);
+				}
+				return damageAmount;
+			});
+
+	/**
+	 *  Apply armor to amount of damage inflicted. Decreases it in most cases unless armor should increase damage inflicted.
+	 *  Event is called after damage is being reduced by armor already and before damage reduction from enchants.
+	 *
+	 * @param player PlayerEntity Player being damaged
+	 * @param source DamageSource Type of damage
+	 * @param amount float Current amount of damage
+	 * @return float Amount of damage after reduction
+	 */
+	float applyArmorToDamage(PlayerEntity player, DamageSource source, float amount);
+}

src/main/java/reborncore/mixin/common/MixinLivingEntity.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of RebornCore, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2021 TeamReborn
+ *
+ * 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 reborncore.mixin.common;
+
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.entity.player.PlayerEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import reborncore.api.events.ApplyArmorToDamageCallback;
+
+@Mixin(LivingEntity.class)
+abstract class MixinLivingEntity {
+
+	@Inject(method = "applyArmorToDamage", at = @At("RETURN"), cancellable = true)
+	public void onApplyArmorToDamage(DamageSource source, float amount, CallbackInfoReturnable<Float> cir){
+
+		LivingEntity entity = (LivingEntity) (Object) this;
+		if (! (entity instanceof PlayerEntity)) { return; }
+
+		cir.setReturnValue(ApplyArmorToDamageCallback.EVENT.invoker().applyArmorToDamage((PlayerEntity) entity, source, amount));
+	}
+}

src/main/resources/reborncore.common.mixins.json

@@ -3,19 +3,20 @@
   "package": "reborncore.mixin.common",
   "compatibilityLevel": "JAVA_8",
   "mixins": [
-	"AccessorScreenHandler",
-	"AccessorFluidBlock",
-	"AccessorFoliagePlacerType",
-	"AccessorIngredient",
-	"AccessorRecipeManager",
-	"AccessorSlot",
-	"MixinBucketItem",
-	"MixinCraftingResultSlot",
-	"MixinItemEntity",
-	"MixinItemStack",
-	"MixinPlayerEntity",
-	"MixinRecipeManager",
-	"MixinWorld"
+    "AccessorFluidBlock",
+    "AccessorFoliagePlacerType",
+    "AccessorIngredient",
+    "AccessorRecipeManager",
+    "AccessorScreenHandler",
+    "AccessorSlot",
+    "MixinBucketItem",
+    "MixinCraftingResultSlot",
+    "MixinItemEntity",
+    "MixinItemStack",
+    "MixinLivingEntity",
+    "MixinPlayerEntity",
+    "MixinRecipeManager",
+    "MixinWorld"
   ],
   "injectors": {
     "defaultRequire": 1