ai work

docs/src/progress/renderertodo.md

@@ -1628,6 +1628,7 @@ Item tag adjustments
 Pine tree loot pool update
 DB characters store toolbar items
 Scaffolding for new macro-cognizating ai approach
+AI work
 
 
 

src/main/java/electrosphere/engine/Globals.java

@@ -84,7 +84,6 @@ import electrosphere.server.datacell.EntityDataCellMapper;
 import electrosphere.server.datacell.RealmManager;
 import electrosphere.server.db.DatabaseController;
 import electrosphere.server.entity.poseactor.PoseModel;
-import electrosphere.server.macro.MacroData;
 import electrosphere.server.saves.Save;
 import electrosphere.server.simulation.MacroSimulation;
 import electrosphere.server.simulation.MicroSimulation;
@@ -330,7 +329,6 @@ public class Globals {
     
     //macro simulation
     public static MacroSimulation macroSimulation;
-    public static MacroData macroData;
     
     //micro simulation
     public static MicroSimulation microSimulation;

src/main/java/electrosphere/game/data/creature/type/ai/AITreeDataSerializer.java

@@ -10,6 +10,7 @@ import com.google.gson.JsonParseException;
 import electrosphere.logger.LoggerInterface;
 import electrosphere.server.ai.trees.test.BlockerAITree;
 import electrosphere.server.ai.trees.creature.AttackerAITree;
+import electrosphere.server.ai.trees.hierarchy.MaslowTree;
 
 /**
  * Deserializes ai tree data types
@@ -20,13 +21,18 @@ public class AITreeDataSerializer implements JsonDeserializer<AITreeData> {
     public AITreeData deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
 
         switch(json.getAsJsonObject().get("name").getAsString()){
-            case AttackerAITree.TREE_NAME:
+            case AttackerAITree.TREE_NAME: {
                 return context.deserialize(json, AttackerTreeData.class);
-            case BlockerAITree.TREE_NAME:
+            }
+            case BlockerAITree.TREE_NAME: {
                 return context.deserialize(json, BlockerTreeData.class);
+            }
+            case MaslowTree.TREE_NAME: {
+                return context.deserialize(json, MaslowTreeData.class);
+            }
         }
         
-        LoggerInterface.loggerEngine.ERROR(new IllegalArgumentException("JSON Object provided to AITreeDataSerializer that cannot deserialize into a tree data type cleanly"));
+        LoggerInterface.loggerEngine.ERROR(new IllegalArgumentException("JSON Object provided to AITreeDataSerializer that cannot deserialize into a tree data type cleanly " + json.getAsJsonObject().get("name").getAsString()));
         return null;
     }
     

src/main/java/electrosphere/game/data/creature/type/ai/AttackerTreeData.java

@@ -1,5 +1,7 @@
 package electrosphere.game.data.creature.type.ai;
 
+import electrosphere.server.ai.trees.creature.AttackerAITree;
+
 /**
  * Configuration data for an attacker tree
  */
@@ -33,7 +35,7 @@ public class AttackerTreeData implements AITreeData {
 
     @Override
     public String getName() {
-        return "Attacker";
+        return AttackerAITree.TREE_NAME;
     }
 
 }

src/main/java/electrosphere/game/data/creature/type/ai/BlockerTreeData.java

@@ -1,5 +1,7 @@
 package electrosphere.game.data.creature.type.ai;
 
+import electrosphere.server.ai.trees.test.BlockerAITree;
+
 /**
  * Data for a blocker ai tree
  */
@@ -7,7 +9,7 @@ public class BlockerTreeData implements AITreeData {
     
     @Override
     public String getName() {
-        return "Blocker";
+        return BlockerAITree.TREE_NAME;
     }
 
 }

src/main/java/electrosphere/game/data/creature/type/ai/MaslowTreeData.java

@@ -0,0 +1,20 @@
+package electrosphere.game.data.creature.type.ai;
+
+import electrosphere.server.ai.trees.hierarchy.MaslowTree;
+
+/**
+ * Tree data for controlling a maslow tree
+ */
+public class MaslowTreeData implements AITreeData {
+
+    /**
+     * The name of the tree
+     */
+    String name;
+    
+    @Override
+    public String getName() {
+        return MaslowTree.TREE_NAME;
+    }
+
+}

src/main/java/electrosphere/server/ai/AI.java

@@ -190,6 +190,13 @@ public class AI {
         this.applyToPlayer = applyToPlayer;
     }
 
+    /**
+     * Gets the blackboard for the ai
+     * @return The blackboard
+     */
+    public Blackboard getBlackboard(){
+        return this.blackboard;
+    }
     
     
 }

src/main/java/electrosphere/server/ai/AIManager.java

@@ -9,6 +9,7 @@ import java.util.Random;
 import electrosphere.entity.Entity;
 import electrosphere.game.data.creature.type.ai.AITreeData;
 import electrosphere.logger.LoggerInterface;
+import electrosphere.server.ai.services.NearbyEntityService;
 import electrosphere.server.ai.services.TimerService;
 
 /**
@@ -41,6 +42,11 @@ public class AIManager {
      */
     TimerService timerService = new TimerService();
 
+    /**
+     * The nearby entity service
+     */
+    NearbyEntityService nearbyEntityService = new NearbyEntityService();
+
     /**
      * The random of the ai
      */
@@ -131,6 +137,7 @@ public class AIManager {
      */
     private void execServices(){
         timerService.exec();
+        nearbyEntityService.exec();
     }
 
     /**
@@ -141,6 +148,14 @@ public class AIManager {
         return timerService;
     }
 
+    /**
+     * Gets the nearby entity service
+     * @return The nearby enttiy service
+     */
+    public NearbyEntityService getNearbyEntityService(){
+        return nearbyEntityService;
+    }
+
     /**
      * Gets the ai manager's random
      * @return The random

src/main/java/electrosphere/server/ai/blackboard/BlackboardKeys.java

@@ -10,4 +10,19 @@ public class BlackboardKeys {
      */
     public static final String MELEE_TARGET = "meleeTarget";
 
+    /**
+     * The collection of nearby entities
+     */
+    public static final String NEARBY_ENTITIES = "nearbyEntities";
+
+    /**
+     * The target of the current action
+     */
+    public static final String ENTITY_TARGET = "target";
+
+    /**
+     * The target to move towards
+     */
+    public static final String MOVE_TO_TARGET = "moveToTarget";
+
 }

src/main/java/electrosphere/server/ai/nodes/actions/interact/CollectItemNode.java

@@ -0,0 +1,34 @@
+package electrosphere.server.ai.nodes.actions.interact;
+
+import org.joml.Vector3d;
+
+import electrosphere.collision.CollisionEngine;
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
+import electrosphere.entity.state.inventory.InventoryUtils;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.plan.FindEntityTargetNode;
+
+/**
+ * Tries to collect an item
+ */
+public class CollectItemNode implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard){
+        if(!FindEntityTargetNode.hasTarget(blackboard)){
+            return AITreeNodeResult.FAILURE;
+        }
+        Entity target = FindEntityTargetNode.getTarget(blackboard);
+        Vector3d parentPos = EntityUtils.getPosition(entity);
+        Vector3d targetPos = EntityUtils.getPosition(target);
+        if(parentPos.distance(targetPos) > CollisionEngine.DEFAULT_INTERACT_DISTANCE){
+            return AITreeNodeResult.FAILURE;
+        }
+        InventoryUtils.serverAttemptStoreItemTransform(entity, target);
+        FindEntityTargetNode.setTarget(blackboard, null);
+        return AITreeNodeResult.SUCCESS;
+    }
+
+}

src/main/java/electrosphere/server/ai/nodes/actions/interact/HarvestNode.java

@@ -0,0 +1,33 @@
+package electrosphere.server.ai.nodes.actions.interact;
+
+import org.joml.Vector3d;
+
+import electrosphere.collision.CollisionEngine;
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.plan.FindEntityTargetNode;
+import electrosphere.server.player.PlayerActions;
+
+/**
+ * Tries to harvest an entity
+ */
+public class HarvestNode implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard){
+        if(!FindEntityTargetNode.hasTarget(blackboard)){
+            return AITreeNodeResult.FAILURE;
+        }
+        Entity target = FindEntityTargetNode.getTarget(blackboard);
+        Vector3d parentPos = EntityUtils.getPosition(entity);
+        Vector3d targetPos = EntityUtils.getPosition(target);
+        if(parentPos.distance(targetPos) > CollisionEngine.DEFAULT_INTERACT_DISTANCE){
+            return AITreeNodeResult.FAILURE;
+        }
+        PlayerActions.harvest(entity, target);
+        FindEntityTargetNode.setTarget(blackboard, null);
+        return AITreeNodeResult.SUCCESS;
+    }
+}

src/main/java/electrosphere/server/ai/nodes/actions/move/FaceTargetNode.java

@@ -9,7 +9,7 @@ import electrosphere.entity.EntityUtils;
 import electrosphere.entity.types.creature.CreatureUtils;
 import electrosphere.server.ai.blackboard.Blackboard;
 import electrosphere.server.ai.nodes.AITreeNode;
-import electrosphere.server.ai.nodes.actions.combat.MeleeTargetingNode;
+import electrosphere.server.ai.nodes.plan.TargetPositionNode;
 import electrosphere.util.math.SpatialMathUtils;
 
 /**
@@ -17,18 +17,11 @@ import electrosphere.util.math.SpatialMathUtils;
  */
 public class FaceTargetNode implements AITreeNode {
 
-    /**
-     * Constructor
-     */
-    public FaceTargetNode(){
-    }
-
     @Override
     public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard) {
-        if(MeleeTargetingNode.hasTarget(blackboard)){
-            Entity target = MeleeTargetingNode.getTarget(blackboard);
+        if(TargetPositionNode.hasMoveToTarget(blackboard)){
             Vector3d parentPos = EntityUtils.getPosition(entity);
-            Vector3d targetPos = EntityUtils.getPosition(target);
+            Vector3d targetPos = TargetPositionNode.getMoveToTarget(blackboard);
             Quaterniond rotation = SpatialMathUtils.calculateRotationFromPointToPoint(parentPos, targetPos);
             EntityUtils.getRotation(entity).set(rotation);
             CreatureUtils.setFacingVector(entity, CameraEntityUtils.getFacingVec(rotation));

src/main/java/electrosphere/server/ai/nodes/checks/macro/HasShelter.java

@@ -5,6 +5,8 @@ import electrosphere.entity.Entity;
 import electrosphere.entity.state.server.ServerCharacterData;
 import electrosphere.server.ai.blackboard.Blackboard;
 import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.datacell.Realm;
+import electrosphere.server.macro.MacroData;
 import electrosphere.server.macro.character.Character;
 import electrosphere.server.macro.character.CharacterUtils;
 import electrosphere.server.macro.structure.Structure;
@@ -16,8 +18,10 @@ public class HasShelter implements AITreeNode {
 
     @Override
     public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard) {
+        Realm entityRealm = Globals.realmManager.getEntityRealm(entity);
+        MacroData macroData = entityRealm.getServerContentManager().getMacroData();
         ServerCharacterData serverCharacterData = ServerCharacterData.getServerCharacterData(entity);
-        Character character = Globals.macroData.getCharacter(serverCharacterData.getCharacterId());
+        Character character = macroData.getCharacter(serverCharacterData.getCharacterId());
         Structure shelter = CharacterUtils.getShelter(character);
         if(shelter == null){
             return AITreeNodeResult.FAILURE;

src/main/java/electrosphere/server/ai/nodes/checks/macro/MacroDataExists.java

@@ -0,0 +1,23 @@
+package electrosphere.server.ai.nodes.checks.macro;
+
+import electrosphere.engine.Globals;
+import electrosphere.entity.Entity;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.datacell.Realm;
+
+/**
+ * Checks that macro data exists
+ */
+public class MacroDataExists implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard) {
+        Realm entityRealm = Globals.realmManager.getEntityRealm(entity);
+        if(entityRealm.getServerContentManager().getMacroData() == null){
+            return AITreeNodeResult.FAILURE;
+        }
+        return AITreeNodeResult.SUCCESS;
+    }
+
+}

src/main/java/electrosphere/server/ai/nodes/checks/spatial/TargetRangeCheck.java

@@ -0,0 +1,44 @@
+package electrosphere.server.ai.nodes.checks.spatial;
+
+import org.joml.Vector3d;
+
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.plan.FindEntityTargetNode;
+
+/**
+ * Checks if the target is inside a given range of the entity
+ */
+public class TargetRangeCheck implements AITreeNode {
+
+    /**
+     * The distance to succeed within
+     */
+    double dist;
+
+    /**
+     * Constructor
+     * @param dist The distance outside of which the node will fail
+     */
+    public TargetRangeCheck(double dist){
+        this.dist = dist;
+    }
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard) {
+        if(!FindEntityTargetNode.hasTarget(blackboard)){
+            return AITreeNodeResult.FAILURE;
+        }
+        Entity target = FindEntityTargetNode.getTarget(blackboard);
+        Vector3d targetPos = EntityUtils.getPosition(target);
+        Vector3d entPos = EntityUtils.getPosition(entity);
+        
+        if(targetPos.distance(entPos) < this.dist){
+            return AITreeNodeResult.SUCCESS;
+        } else {
+            return AITreeNodeResult.FAILURE;
+        }
+    }
+}

src/main/java/electrosphere/server/ai/nodes/plan/BuildStructureNode.java

@@ -0,0 +1,16 @@
+package electrosphere.server.ai.nodes.plan;
+
+import electrosphere.entity.Entity;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+
+/**
+ * A node that performs functions to try to build a structure
+ */
+public class BuildStructureNode implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard) {
+        return AITreeNodeResult.SUCCESS;
+    }
+}

src/main/java/electrosphere/server/ai/nodes/plan/FindEntityTargetNode.java

@@ -0,0 +1,56 @@
+package electrosphere.server.ai.nodes.plan;
+
+import electrosphere.entity.Entity;
+import electrosphere.entity.state.block.ServerBlockTree;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.blackboard.BlackboardKeys;
+import electrosphere.server.ai.nodes.AITreeNode;
+
+/**
+ * Finds a target given some criteria
+ */
+public class FindEntityTargetNode implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard){
+        if(ServerBlockTree.getServerBlockTree(entity) != null){
+            ServerBlockTree serverBlockTree = ServerBlockTree.getServerBlockTree(entity);
+            if(serverBlockTree.isIdle()){
+                serverBlockTree.start();
+                return AITreeNodeResult.SUCCESS;
+            } else {
+                return AITreeNodeResult.RUNNING;
+            }
+        } else {
+            return AITreeNodeResult.FAILURE;
+        }
+    }
+
+    /**
+     * Sets the target in the blackboard
+     * @param blackboard The blackboard
+     * @param target The target
+     */
+    public static void setTarget(Blackboard blackboard, Entity target){
+        blackboard.put(BlackboardKeys.ENTITY_TARGET, target);
+    }
+
+    /**
+     * Gets the currently targeted entity
+     * @param blackboard The blackboard
+     * @return The entity target if it exists, null otherwise
+     */
+    public static Entity getTarget(Blackboard blackboard){
+        return (Entity)blackboard.get(BlackboardKeys.ENTITY_TARGET);
+    }
+
+    /**
+     * Checks if the blackboard has a currently targeted entity
+     * @param blackboard The blackboard
+     * @return true if it has a currently targeted entity, false otherwise
+     */
+    public static boolean hasTarget(Blackboard blackboard){
+        return blackboard.has(BlackboardKeys.ENTITY_TARGET);
+    }
+
+}

src/main/java/electrosphere/server/ai/nodes/plan/SetBuildGoalNode.java

@@ -0,0 +1,35 @@
+package electrosphere.server.ai.nodes.plan;
+
+import electrosphere.entity.Entity;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.nodes.AITreeNode;
+
+/**
+ * Sets the type of structure to build
+ */
+public class SetBuildGoalNode implements AITreeNode {
+
+    /**
+     * A shelter structure type
+     */
+    public static final String STRUCTURE_TYPE_SHELTER = "shelter";
+
+    /**
+     * The type of structure
+     */
+    String type;
+
+    /**
+     * Constructor
+     * @param type The type to set the build goal to
+     */
+    public SetBuildGoalNode(String type){
+        this.type = type;
+    }
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard){
+        return AITreeNodeResult.SUCCESS;
+    }
+    
+}

src/main/java/electrosphere/server/ai/nodes/plan/TargetPositionNode.java

@@ -0,0 +1,54 @@
+package electrosphere.server.ai.nodes.plan;
+
+import org.joml.Vector3d;
+
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.blackboard.BlackboardKeys;
+import electrosphere.server.ai.nodes.AITreeNode;
+
+/**
+ * Sets the move-to target position to the position of the targeted entity
+ */
+public class TargetPositionNode implements AITreeNode {
+
+    @Override
+    public AITreeNodeResult evaluate(Entity entity, Blackboard blackboard){
+        if(!FindEntityTargetNode.hasTarget(blackboard)){
+            return AITreeNodeResult.FAILURE;
+        }
+        Entity target = FindEntityTargetNode.getTarget(blackboard);
+        Vector3d targetPos = EntityUtils.getPosition(target);
+        TargetPositionNode.setMoveToTarget(blackboard, targetPos);
+        return AITreeNodeResult.SUCCESS;
+    }
+
+    /**
+     * Sets the move-to target of the blackboard
+     * @param blackboard The blackboard
+     * @param position The target position
+     */
+    public static void setMoveToTarget(Blackboard blackboard, Vector3d position){
+        blackboard.put(BlackboardKeys.MOVE_TO_TARGET, position);
+    }
+
+    /**
+     * Gets the move-to target of the blackboard
+     * @param blackboard The blackboard
+     * @return The move-to target if it exists, null otherwise
+     */
+    public static Vector3d getMoveToTarget(Blackboard blackboard){
+        return (Vector3d)blackboard.get(BlackboardKeys.MOVE_TO_TARGET);
+    }
+
+    /**
+     * Checks if the blackboard has a move to target
+     * @param blackboard the blackboard
+     * @return true if it has a move-to target, false otherwise
+     */
+    public static boolean hasMoveToTarget(Blackboard blackboard){
+        return blackboard.has(BlackboardKeys.MOVE_TO_TARGET);
+    }
+
+}

src/main/java/electrosphere/server/ai/services/NearbyEntityService.java

@@ -0,0 +1,64 @@
+package electrosphere.server.ai.services;
+
+import java.util.Collection;
+
+import org.joml.Vector3d;
+
+import electrosphere.engine.Globals;
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
+import electrosphere.server.ai.AI;
+import electrosphere.server.ai.blackboard.Blackboard;
+import electrosphere.server.ai.blackboard.BlackboardKeys;
+import electrosphere.server.datacell.Realm;
+
+/**
+ * Gets the entities that are near this entity
+ */
+public class NearbyEntityService implements AIService {
+
+    /**
+     * Distance to search for nearby entities
+     */
+    static final double SEARCH_DIST = 32;
+
+    @Override
+    public void exec(){
+        for(AI ai : Globals.aiManager.getAIList()){
+            Entity entity = ai.getParent();
+            Realm realm = Globals.realmManager.getEntityRealm(entity);
+            Vector3d position = EntityUtils.getPosition(entity);
+            Collection<Entity> nearbyEntities = realm.getDataCellManager().entityLookup(position, NearbyEntityService.SEARCH_DIST);
+            NearbyEntityService.setNearbyEntities(ai.getBlackboard(), nearbyEntities);
+        }
+    }
+
+    /**
+     * Sets the nearby entities
+     * @param blackboard The blackboard
+     * @param entities The nearby entities
+     */
+    public static void setNearbyEntities(Blackboard blackboard, Collection<Entity> entities){
+        blackboard.put(BlackboardKeys.NEARBY_ENTITIES, entities);
+    }
+
+    /**
+     * Gets the nearby entities
+     * @param blackboard The blackboard
+     * @return The nearby entities
+     */
+    @SuppressWarnings("unchecked")
+    public static Collection<Entity> getNearbyEntities(Blackboard blackboard){
+        return (Collection<Entity>)blackboard.get(BlackboardKeys.NEARBY_ENTITIES);
+    }
+
+    /**
+     * Checks if the blackboard stores nearby entities
+     * @param blackboard The blackboard
+     * @return true if it stores nearby entities, false otherwise
+     */
+    public static boolean hasNearbyEntities(Blackboard blackboard){
+        return blackboard.has(BlackboardKeys.NEARBY_ENTITIES);
+    }
+
+}

src/main/java/electrosphere/server/ai/trees/creature/MoveToTarget.java

@@ -0,0 +1,49 @@
+package electrosphere.server.ai.trees.creature;
+
+import electrosphere.entity.state.movement.groundmove.ClientGroundMovementTree.MovementRelativeFacing;
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.actions.move.FaceTargetNode;
+import electrosphere.server.ai.nodes.actions.move.MoveStartNode;
+import electrosphere.server.ai.nodes.actions.move.MoveStopNode;
+import electrosphere.server.ai.nodes.checks.spatial.TargetRangeCheck;
+import electrosphere.server.ai.nodes.meta.collections.SelectorNode;
+import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.decorators.RunnerNode;
+import electrosphere.server.ai.nodes.meta.decorators.SucceederNode;
+import electrosphere.server.ai.nodes.plan.TargetPositionNode;
+
+/**
+ * Moves to a target
+ */
+public class MoveToTarget {
+    
+    /**
+     * Name of the tree
+     */
+    public static final String TREE_NAME = "MoveTo";
+
+    /**
+     * Creates a move-to-target tree
+     * @param dist The target distance to be within
+     * @return The root node of the move-to-target tree
+     */
+    public static AITreeNode create(double dist){
+        return new SelectorNode(
+            new SequenceNode(
+                //check if in range of target
+                new TargetRangeCheck(0),
+                //if in range, stop moving fowards and return SUCCESS
+                new SucceederNode(new MoveStopNode())
+            ),
+
+            //not in range of target, keep moving towards it
+            new SequenceNode(
+                new TargetPositionNode(),
+                //check that dependencies exist
+                new FaceTargetNode(),
+                new RunnerNode(new MoveStartNode(MovementRelativeFacing.FORWARD))
+            )
+        );
+    }
+
+}

src/main/java/electrosphere/server/ai/trees/hierarchy/MaslowTree.java

@@ -1,7 +1,10 @@
 package electrosphere.server.ai.trees.hierarchy;
 
 import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.checks.macro.IsCharacterNode;
+import electrosphere.server.ai.nodes.checks.macro.MacroDataExists;
 import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 import electrosphere.server.ai.trees.hierarchy.safety.MaslowSafetyTree;
 
 /**
@@ -20,6 +23,14 @@ public class MaslowTree {
      */
     public static AITreeNode create(){
         return new SequenceNode(
+            //check that dependencies exist
+            new SequenceNode(
+                new PublishStatusNode("Checking dependencies for maslow tree.."),
+                new MacroDataExists(),
+                new IsCharacterNode()
+            ),
+
+            //check the first tier of needs
             MaslowSafetyTree.create()
         );
     }

src/main/java/electrosphere/server/ai/trees/hierarchy/safety/CombatTree.java

@@ -1,6 +1,8 @@
 package electrosphere.server.ai.trees.hierarchy.safety;
 
 import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 import electrosphere.server.ai.nodes.meta.decorators.SucceederNode;
 
 /**
@@ -18,7 +20,10 @@ public class CombatTree {
      * @return The root node of the tree
      */
     public static AITreeNode create(){
-        return new SucceederNode(null);
+        return new SequenceNode(
+            new PublishStatusNode("Engaged in mortal combat"),
+            new SucceederNode(null)
+        );
     }
 
 }

src/main/java/electrosphere/server/ai/trees/hierarchy/safety/FleeTree.java

@@ -1,6 +1,8 @@
 package electrosphere.server.ai.trees.hierarchy.safety;
 
 import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 import electrosphere.server.ai.nodes.meta.decorators.SucceederNode;
 
 /**
@@ -18,7 +20,10 @@ public class FleeTree {
      * @return The root node of the tree
      */
     public static AITreeNode create(){
-        return new SucceederNode(null);
+        return new SequenceNode(
+            new PublishStatusNode("Flee!"),
+            new SucceederNode(null)
+        );
     }
 
 }

src/main/java/electrosphere/server/ai/trees/hierarchy/safety/MaslowSafetyTree.java

@@ -2,6 +2,7 @@ package electrosphere.server.ai.trees.hierarchy.safety;
 
 import electrosphere.server.ai.nodes.AITreeNode;
 import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 import electrosphere.server.ai.trees.hierarchy.safety.shelter.ShelterTree;
 
 /**
@@ -20,6 +21,7 @@ public class MaslowSafetyTree {
      */
     public static AITreeNode create(){
         return new SequenceNode(
+            new PublishStatusNode("Evaluate safety"),
             FleeTree.create(),
             CombatTree.create(),
             ShelterTree.create()

src/main/java/electrosphere/server/ai/trees/hierarchy/safety/shelter/ConstructShelterTree.java

@@ -1,6 +1,8 @@
 package electrosphere.server.ai.trees.hierarchy.safety.shelter;
 
 import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 import electrosphere.server.ai.nodes.meta.decorators.SucceederNode;
 
 /**
@@ -18,6 +20,9 @@ public class ConstructShelterTree {
      * @return The root node of the tree
      */
     public static AITreeNode create(){
-        return new SucceederNode(null);
+        return new SequenceNode(
+            new PublishStatusNode("Construct a shelter"),
+            new SucceederNode(null)
+        );
     }
 }

src/main/java/electrosphere/server/ai/trees/hierarchy/safety/shelter/ShelterTree.java

@@ -5,6 +5,7 @@ import electrosphere.server.ai.nodes.checks.macro.HasShelter;
 import electrosphere.server.ai.nodes.checks.macro.IsCharacterNode;
 import electrosphere.server.ai.nodes.meta.collections.SelectorNode;
 import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+import electrosphere.server.ai.nodes.meta.debug.PublishStatusNode;
 
 /**
  * A tree that causes the entity to try to secure shelter
@@ -22,6 +23,7 @@ public class ShelterTree {
      */
     public static AITreeNode create(){
         return new SequenceNode(
+            new PublishStatusNode("Evaluate shelter"),
             //make sure that this entity actually cares about shelter
             new SequenceNode(
                 //if this is a character
@@ -32,13 +34,13 @@ public class ShelterTree {
                 //if has shelter..
                 new SelectorNode(
                     new SequenceNode(
-                        new HasShelter(),
-                        //does not have shelter
-                        ConstructShelterTree.create()
-                    ),
-                    new SequenceNode(
+                        new HasShelter()
                         //already has shelter
                         //TODO: check environment (ie time of day) to see if we should return to shelter
+                    ),
+                    new SequenceNode(
+                        //does not have shelter
+                        ConstructShelterTree.create()
                     )
                 )
             )

src/main/java/electrosphere/server/ai/trees/jobs/ForageTree.java

@@ -0,0 +1,25 @@
+package electrosphere.server.ai.trees.jobs;
+
+import electrosphere.server.ai.nodes.AITreeNode;
+import electrosphere.server.ai.nodes.meta.collections.SequenceNode;
+
+/**
+ * A tree that attempts to forage for items
+ */
+public class ForageTree {
+    
+    /**
+     * Name of the tree
+     */
+    public static final String TREE_NAME = "Forage";
+
+    /**
+     * Creates a foraging tree
+     * @return The root node of the tree
+     */
+    public static AITreeNode create(){
+        return new SequenceNode(
+        );
+    }
+
+}

src/main/java/electrosphere/server/datacell/ViewportDataCellManager.java

@@ -1,5 +1,6 @@
 package electrosphere.server.datacell;
 
+import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -7,10 +8,15 @@ import org.joml.Vector3d;
 import org.joml.Vector3i;
 
 import electrosphere.engine.Globals;
+import electrosphere.entity.Entity;
+import electrosphere.entity.EntityUtils;
 import electrosphere.entity.scene.Scene;
 import electrosphere.net.server.player.Player;
 import electrosphere.server.datacell.interfaces.DataCellManager;
 
+/**
+ * A viewport data cell manager
+ */
 public class ViewportDataCellManager implements DataCellManager {
 
     /**
@@ -125,5 +131,19 @@ public class ViewportDataCellManager implements DataCellManager {
     public void halt(){
         //does nothing
     }
+
+    @Override
+    public Collection<Entity> entityLookup(Vector3d pos, double radius) {
+        List<Entity> rVal = new LinkedList<Entity>();
+        for(Entity entity : this.serverDataCell.getScene().getEntityList()){
+            // boundingSphere
+            Vector3d entPos = EntityUtils.getPosition(entity);
+            if(pos.distance(entPos) > radius){
+                continue;
+            }
+            rVal.add(entity);
+        }
+        return rVal;
+    }
     
 }

src/main/java/electrosphere/server/datacell/gridded/GriddedDataCellManager.java

@@ -1123,4 +1123,18 @@ public class GriddedDataCellManager implements DataCellManager, VoxelCellManager
         LoggerInterface.loggerEngine.WARNING("Cell is ready: " + serverDataCell.isReady());
     }
 
+    @Override
+    public Collection<Entity> entityLookup(Vector3d pos, double radius) {
+        List<Entity> rVal = new LinkedList<Entity>();
+        this.loadedCellsLock.lock();
+        for(ServerDataCell cell : this.groundDataCells.values()){
+            if(ServerWorldData.convertChunkToRealSpace(this.getCellWorldPosition(cell)).distance(pos) > radius){
+                continue;
+            }
+            rVal.addAll(cell.getScene().getEntityList());
+        }
+        this.loadedCellsLock.unlock();
+        return rVal;
+    }
+
 }

src/main/java/electrosphere/server/datacell/interfaces/DataCellManager.java

@@ -1,8 +1,11 @@
 package electrosphere.server.datacell.interfaces;
 
+import java.util.Collection;
+
 import org.joml.Vector3d;
 import org.joml.Vector3i;
 
+import electrosphere.entity.Entity;
 import electrosphere.net.server.player.Player;
 import electrosphere.server.datacell.ServerDataCell;
 
@@ -86,5 +89,13 @@ public interface DataCellManager {
      * Halts all asynchronous work being done in this data cell manager
      */
     public void halt();
+
+    /**
+     * Looks up entities within a bounding sphere
+     * @param pos The position of the sphere
+     * @param radius The radius of the sphere
+     * @return The list of entities within the bounding sphere
+     */
+    public Collection<Entity> entityLookup(Vector3d pos, double radius);
     
 }

src/main/java/electrosphere/server/player/PlayerActions.java

@@ -130,11 +130,7 @@ public class PlayerActions {
         Entity playerEntity = EntityLookupUtils.getEntityById(connectionHandler.getPlayerEntityId());
         switch(signal){
             case InteractionData.ON_INTERACT_HARVEST: {
-                if(ServerLifeTree.hasServerLifeTree(target)){
-                    ServerLifeTree serverLifeTree = ServerLifeTree.getServerLifeTree(target);
-                    serverLifeTree.kill();
-                }
-                ServerScriptUtils.fireSignalOnEntity(playerEntity, "entityInteractHarvest", target);
+                PlayerActions.harvest(playerEntity, target);
             } break;
             case InteractionData.ON_INTERACT_DOOR: {
                 if(ServerDoorState.hasServerDoorState(target)){
@@ -148,5 +144,18 @@ public class PlayerActions {
             }
         }
     }
+
+    /**
+     * Tries to harvest the target as the creature
+     * @param creature The creature
+     * @param target The target to harvest
+     */
+    public static void harvest(Entity creature, Entity target){
+        if(ServerLifeTree.hasServerLifeTree(target)){
+            ServerLifeTree serverLifeTree = ServerLifeTree.getServerLifeTree(target);
+            serverLifeTree.kill();
+        }
+        ServerScriptUtils.fireSignalOnEntity(creature, "entityInteractHarvest", target);
+    }
     
 }

src/main/java/electrosphere/server/simulation/MacroSimulation.java

@@ -18,11 +18,11 @@ public class MacroSimulation {
      * Iterates the macro simulation
      */
     public void simulate(){
-        for(Character character : Globals.macroData.getAliveCharacters()){
-            //do something
-            MacroSimulation.checkForShelter(character);
-            MacroSimulation.checkTownMembership(character);
-        }
+        // for(Character character : Globals.macroData.getAliveCharacters()){
+        //     //do something
+        //     MacroSimulation.checkForShelter(character);
+        //     MacroSimulation.checkTownMembership(character);
+        // }
     }
     
     /**