Implement all required compat with Ascend

src/main/java/net/fretux/skillengine/skilltree/SkillNodeLoader.java

@@ -12,6 +12,7 @@ import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -33,29 +34,30 @@ public class SkillNodeLoader extends SimpleJsonResourceReloadListener {
     protected void apply(Map<ResourceLocation, JsonElement> jsons,
                          ResourceManager resourceManager,
                          ProfilerFiller profiler) {
-
         SkillEngine.LOGGER.info("Loading skill nodes...");
         SkillNodeRegistry.clear();
-
         jsons.forEach((id, element) -> {
             JsonObject obj = element.getAsJsonObject();
-
             String title = obj.get("title").getAsString();
             String description = obj.get("description").getAsString();
             int cost = obj.get("cost").getAsInt();
-
             JsonObject pos = obj.getAsJsonObject("position");
             float x = pos.get("x").getAsFloat();
             float y = pos.get("y").getAsFloat();
-
             List<ResourceLocation> links = new ArrayList<>();
             obj.getAsJsonArray("links").forEach(e ->
                     links.add(new ResourceLocation(e.getAsString())));
-
             List<ResourceLocation> tags = new ArrayList<>();
             obj.getAsJsonArray("tags").forEach(e ->
                     tags.add(new ResourceLocation(e.getAsString())));
-
+            ResourceLocation icons = new ResourceLocation(obj.get("icons").getAsString());
+            Map<String, Integer> prereqAttributes = new HashMap<>();
+            if (obj.has("prerequisites")) {
+                JsonObject prereqObj = obj.getAsJsonObject("prerequisites");
+                for (Map.Entry<String, JsonElement> entry : prereqObj.entrySet()) {
+                    prereqAttributes.put(entry.getKey(), entry.getValue().getAsInt());
+                }
+            }
             SkillNode node = new SkillNode(
                     id,
                     Component.literal(title),
@@ -63,11 +65,12 @@ public class SkillNodeLoader extends SimpleJsonResourceReloadListener {
                     cost,
                     x, y,
                     links,
-                    tags
+                    tags,
+                    icons,
+                    prereqAttributes
             );
             SkillNodeRegistry.put(node);
         });
-
         SkillEngine.LOGGER.info("Loaded {} skill nodes", SkillNodeRegistry.all().size());
     }
 }