Added nether talisman

eco-core/core-plugin/src/main/java/com/willfp/talismans/talismans/talismans/NetherTalisman.java

@@ -0,0 +1,26 @@
+package com.willfp.talismans.talismans.talismans;
+
+import com.willfp.talismans.talismans.Talisman;
+import com.willfp.talismans.talismans.Talismans;
+import org.bukkit.World;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.jetbrains.annotations.NotNull;
+
+public class NetherTalisman extends Talisman {
+    public NetherTalisman() {
+        super("nether_talisman");
+    }
+
+    @Override
+    public void onMeleeAttack(@NotNull final Player attacker,
+                              @NotNull final LivingEntity victim,
+                              @NotNull final EntityDamageByEntityEvent event) {
+        if (attacker.getWorld().getEnvironment() != World.Environment.NETHER) {
+            return;
+        }
+
+        event.setDamage(event.getDamage() * (1 + (this.getConfig().getDouble(Talismans.CONFIG_LOCATION + "percent-more-damage")) / 100));
+    }
+}

eco-core/core-plugin/src/main/resources/talismans/nethertalisman.yml

@@ -0,0 +1,27 @@
+name: "Nether Talisman"
+description: Deal 10% more damage in the nether.
+enabled: true
+
+obtaining:
+  # Recipes are left-right, top-bottom
+  # The first item is the top left, the second is top middle, and so on. The last is bottom right.
+  recipe:
+    - netherrack
+    - netherrack
+    - netherrack
+
+    - netherrack
+    - gold_block
+    - netherrack
+
+    - netherrack
+    - netherrack
+    - netherrack
+
+general-config:
+  disabled-in-worlds: []
+  # Texture is base64, https://minecraft-heads.com has a list of skulls.
+  texture: eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDUwMDI5MmY0YWZlNTJkMTBmMjk5ZGZiMjYwMzYzMjI4MzA0NTAzMzFlMDAzMDg0YmIyMjAzMzM1MzA2NjRlMSJ9fX0=
+
+config:
+  percent-more-damage: 10