Fix ModMixin annotation for both Forge and Fabric due to incorrect cl…

…ass load order

common/src/main/java/com/copycatsplus/copycats/compat/Mods.java

@@ -29,7 +29,8 @@ public enum Mods {
     SODIUM("sodium"),
     ATHENA("athena"),
     INDIUM("indium"),
-    STARLIGHT("starlight");
+    STARLIGHT("starlight"),
+    DOUBLE_SLABS("doubleslabs");
 
     public final String id;
     public final boolean isLoaded;
@@ -56,23 +57,13 @@ public ResourceLocation rl(String path) {
         return new ResourceLocation(id, path);
     }
 
-    public Item getItem(String id) {
-        return BuiltInRegistries.ITEM.get(rl(id));
-    }
-
-    public Item getItem(ResourceLocation id) {
-        return BuiltInRegistries.ITEM.get(id);
-    }
-
     public boolean getLoaded() {
         return isLoaded;
     }
 
     /**
      * @return a boolean of whether the mod is loaded or not based on mod id
      */
-
-
     @ExpectPlatform
     public static boolean getLoaded(String id) {
         throw new AssertionError();

forge/src/main/java/com/copycatsplus/copycats/compat/forge/ModsImpl.java

@@ -1,11 +1,15 @@
 package com.copycatsplus.copycats.compat.forge;
 
 import net.minecraftforge.fml.ModList;
+import net.minecraftforge.fml.loading.FMLLoader;
 
 public class ModsImpl {
 
 
     public static boolean getLoaded(String id) {
+        // If ModList is null, we are in the loading stage, so we need to check the loading mod list
+        if (ModList.get() == null)
+            return FMLLoader.getLoadingModList().getMods().stream().anyMatch(mod -> mod.getModId().equals(id));
         return ModList.get().isLoaded(id);
     }
 }

forge/src/main/java/com/copycatsplus/copycats/forge/mixin/compat/doubleslabs/DSConfigCommonMixin.java

@@ -1,6 +1,8 @@
 package com.copycatsplus.copycats.forge.mixin.compat.doubleslabs;
 
 import cjminecraft.doubleslabs.common.config.DSConfig;
+import com.copycatsplus.copycats.compat.Mods;
+import com.copycatsplus.copycats.foundation.annotation.ModMixin;
 import com.copycatsplus.copycats.foundation.copycat.ICopycatBlock;
 import net.minecraft.world.level.block.Block;
 import org.spongepowered.asm.mixin.Mixin;
@@ -12,6 +14,7 @@
 /**
  * Always blacklist copycat blocks from being considered by Double Slabs.
  */
+@ModMixin(requiredMods = Mods.DOUBLE_SLABS)
 @Mixin(DSConfig.Common.class)
 @Pseudo
 public class DSConfigCommonMixin {