add config

src/main/java/de/dertoaster/crossbowverhaul/CrossbowverhaulMod.java

@@ -3,15 +3,18 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
+import de.dertoaster.crossbowverhaul.config.CrossbowverhaulConfigHolder;
 import de.dertoaster.crossbowverhaul.init.ModEnchantments;
 import de.dertoaster.crossbowverhaul.init.ModEntityTypes;
 import de.dertoaster.crossbowverhaul.init.ModItemProperties;
 import de.dertoaster.crossbowverhaul.init.ModItems;
 import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
+import net.minecraftforge.fml.config.ModConfig;
 import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
 
@@ -27,6 +30,9 @@ public class CrossbowverhaulMod
     public CrossbowverhaulMod() {
     	IEventBus modbus = FMLJavaModLoadingContext.get().getModEventBus();
 
+    	//Register config
+    	ModLoadingContext.get().registerConfig(ModConfig.Type.COMMON, CrossbowverhaulConfigHolder.ITEM_CONFIG_SPEC);
+
     	//Register items
     	ModItems.registerToEventBus(modbus);
     	//Register entities

src/main/java/de/dertoaster/crossbowverhaul/config/CrossbowverhaulConfigHolder.java

@@ -0,0 +1,53 @@
+package de.dertoaster.crossbowverhaul.config;
+
+import org.apache.commons.lang3.tuple.Pair;
+
+import net.minecraftforge.common.ForgeConfigSpec;
+import net.minecraftforge.common.ForgeConfigSpec.ConfigValue;
+
+public class CrossbowverhaulConfigHolder {
+
+	public static class ItemConfig {
+		private static final boolean allowEnchantmentsOnCrossbow = true;
+		private static final boolean allowEnchantmentsOnNetheriteCrossbow = true;
+		private static final boolean modifyMultiShotEnchantment = true;
+
+		public final ConfigValue<Boolean> coEnchCrossbow;
+		public final ConfigValue<Boolean> coEnchNetheriteCrossbow;
+		public final ConfigValue<Boolean> coModMultishot;
+
+		public ItemConfig(ForgeConfigSpec.Builder builder) {
+			builder.push("co-item");
+
+				this.coEnchCrossbow = builder
+						.comment("Enable enchantments on the crossbow")
+						.defineInRange("Enable enchants on crossbow", allowEnchantmentsOnCrossbow, true, false, Boolean.class);
+
+				this.coEnchNetheriteCrossbow = builder
+						.comment("Enable enchantments on the netherite crossbow")
+						.defineInRange("Enable enchants on netherite crossbow", allowEnchantmentsOnNetheriteCrossbow, true, false, Boolean.class);
+
+			builder.pop();
+
+			builder.push("co-ench");
+
+				this.coModMultishot = builder
+						.comment("Allows multishot to go up to five")
+						.defineInRange("Modify multishot enchantment", modifyMultiShotEnchantment, true, false, Boolean.class);
+
+			builder.pop();
+		}
+
+	}
+
+	public static final ItemConfig ITEM_CONFIG;
+	public static final ForgeConfigSpec ITEM_CONFIG_SPEC;
+
+	static {
+		Pair<ItemConfig, ForgeConfigSpec> itemConfigSpecPair = new ForgeConfigSpec.Builder().configure(ItemConfig::new);
+
+		ITEM_CONFIG = itemConfigSpecPair.getLeft();
+		ITEM_CONFIG_SPEC = itemConfigSpecPair.getRight();
+	}
+
+}