Implement all required compat with Ascend

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

@@ -1,17 +1,32 @@
 package net.fretux.skillengine.skilltree;
 
+import net.fretux.ascend.player.PlayerStatsProvider;
 import net.fretux.skillengine.capability.PlayerSkillData;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.entity.player.Player;
+
+import java.util.Map;
 
 public class SkillLogic {
 
-    public static boolean canUnlock(PlayerSkillData data, SkillNode node) {
+    public static boolean canUnlock(PlayerSkillData data, Player player, SkillNode node) {
         if (data.isUnlocked(node.getId())) return false;
         if (data.getSkillPoints() < node.getCost()) return false;
         if (node.isRoot()) return true;
+        if (!meetsAscendPrerequisites(player, node)) return false;
         for (ResourceLocation neighborId : node.getLinks()) {
             if (data.isUnlocked(neighborId)) return true;
         }
         return false;
     }
+    public static boolean meetsAscendPrerequisites(Player player, SkillNode node) {
+        return player.getCapability(PlayerStatsProvider.PLAYER_STATS).map(stats -> {
+            for (Map.Entry<String, Integer> req : node.getPrereqAttributes().entrySet()) {
+                int current = stats.getAttributeLevel(req.getKey());
+                if (current < req.getValue()) return false;
+            }
+            return true;
+        }).orElse(false);
+    }
+
 }

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

@@ -4,6 +4,7 @@ import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
 
 import java.util.List;
+import java.util.Map;
 
 public class SkillNode {
 
@@ -15,6 +16,8 @@ public class SkillNode {
     private final float y;
     private final List<ResourceLocation> links;
     private final List<ResourceLocation> tags;
+    private final ResourceLocation icons;
+    private final Map<String, Integer> prereqAttributes;
 
     public SkillNode(ResourceLocation id,
                      Component title,
@@ -22,7 +25,9 @@ public class SkillNode {
                      int cost,
                      float x, float y,
                      List<ResourceLocation> links,
-                     List<ResourceLocation> tags) {
+                     List<ResourceLocation> tags,
+                     ResourceLocation icons,
+                     Map<String, Integer> prereqAttributes) {
 
         this.id = id;
         this.title = title;
@@ -32,18 +37,51 @@ public class SkillNode {
         this.y = y;
         this.links = List.copyOf(links);
         this.tags = List.copyOf(tags);
+        this.icons = icons;
+        this.prereqAttributes = Map.copyOf(prereqAttributes);
     }
 
-    public ResourceLocation getId() { return id; }
-    public Component getTitle() { return title; }
-    public Component getDescription() { return description; }
-    public int getCost() { return cost; }
-    public float getX() { return x; }
-    public float getY() { return y; }
-    public List<ResourceLocation> getLinks() { return links; }
-    public List<ResourceLocation> getTags() { return tags; }
+    public ResourceLocation getId() {
+        return id;
+    }
+
+    public Component getTitle() {
+        return title;
+    }
+
+    public Component getDescription() {
+        return description;
+    }
+
+    public int getCost() {
+        return cost;
+    }
+
+    public float getX() {
+        return x;
+    }
+
+    public float getY() {
+        return y;
+    }
+
+    public List<ResourceLocation> getLinks() {
+        return links;
+    }
+
+    public List<ResourceLocation> getTags() {
+        return tags;
+    }
+
+    public ResourceLocation getIcons() {
+        return icons;
+    }
+
+    public Map<String, Integer> getPrereqAttributes() {
+        return prereqAttributes;
+    }
 
     public boolean isRoot() {
-        return links.isEmpty(); // or a dedicated flag if you want later
+        return links.isEmpty();
     }
 }

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());
     }
 }