implement attach point offset and tweak human

assets/Data/creatures/human.json

@@ -236,7 +236,7 @@
                     "equipPointId" : "handRight",
                     "bone" : "MiddleLower.R",
                     "offsetVector" : [],
-                    "offsetRotation" : [],
+                    "offsetRotation" : [0.3057,0.2926,0.09933,0.9006],
                     "equipClassWhitelist" : [
                         "tool",
                         "weapon",

src/main/java/electrosphere/entity/EntityDataStrings.java

@@ -148,6 +148,7 @@ public class EntityDataStrings {
     public static final String ATTACH_PARENT = "attachParent";
     public static final String ATTACH_TARGET_BONE = "attachTargetBone";
     public static final String ATTACH_CHILDREN_LIST = "attachChildrenList";
+    public static final String ATTACH_ROTATION_OFFSET = "attachRotationOffset";
     
     /*
     Item Entity

src/main/java/electrosphere/entity/state/equip/EquipState.java

@@ -72,7 +72,7 @@ public class EquipState {
                             meshMask.queueMesh(modelName, toDraw);
                         }
                         //attach to parent bone
-                        AttachUtils.attachEntityToEntityAtBone(parent, toEquip, point.getBone());
+                        AttachUtils.attachEntityToEntityAtBone(parent, toEquip, point.getBone(), AttachUtils.getEquipPointRotationOffset(point.getOffsetRotation()));
                         //make uncollidable
                         if(toEquip.containsKey(EntityDataStrings.PHYSICS_COLLISION_BODY) && toEquip.containsKey(EntityDataStrings.PHYSICS_COLLIDABLE)){
                             CollisionObject rigidBody = (CollisionObject)toEquip.getData(EntityDataStrings.PHYSICS_COLLISION_BODY);
@@ -88,7 +88,7 @@ public class EquipState {
             } else {
                 //since we're not replacing meshes we must be attaching to a bone
                 equipMap.put(point.getEquipPointId(),toEquip);
-                AttachUtils.attachEntityToEntityAtBone(parent, toEquip, point.getBone());
+                AttachUtils.attachEntityToEntityAtBone(parent, toEquip, point.getBone(), AttachUtils.getEquipPointRotationOffset(point.getOffsetRotation()));
                 if(toEquip.containsKey(EntityDataStrings.PHYSICS_COLLISION_BODY) && toEquip.containsKey(EntityDataStrings.PHYSICS_COLLIDABLE)){
                     CollisionObject rigidBody = (CollisionObject)toEquip.getData(EntityDataStrings.PHYSICS_COLLISION_BODY);
                     Globals.collisionEngine.deregisterPhysicsObject(rigidBody);

src/main/java/electrosphere/entity/types/attach/AttachUtils.java

@@ -23,11 +23,12 @@ import org.joml.Vector3f;
 public class AttachUtils {
     
     
-    public static void attachEntityToEntityAtBone(Entity parent, Entity toAttach, String boneName){
+    public static void attachEntityToEntityAtBone(Entity parent, Entity toAttach, String boneName, Quaternionf rotation){
         Globals.entityManager.registerBoneAttachedEntity(toAttach);
         toAttach.putData(EntityDataStrings.ATTACH_ENTITY_IS_ATTACHED, true);
         toAttach.putData(EntityDataStrings.ATTACH_PARENT, parent);
         toAttach.putData(EntityDataStrings.ATTACH_TARGET_BONE, boneName);
+        toAttach.putData(EntityDataStrings.ATTACH_ROTATION_OFFSET, rotation);
         if(parent.containsKey(EntityDataStrings.ATTACH_CHILDREN_LIST)){
             getChildrenList(parent).add(toAttach);
         } else {
@@ -44,6 +45,8 @@ public class AttachUtils {
                 String targetBone;
                 if((targetBone = (String)currentEntity.getData(EntityDataStrings.ATTACH_TARGET_BONE))!=null){
                     Actor parentActor = EntityUtils.getActor(parent);
+                    //get offset rotation
+                    Quaternionf offsetRotation = getRotationOffset(currentEntity);
                     //transform bone space
                     Vector3d position = new Vector3d(parentActor.getBonePosition(targetBone));
                     position = position.mul(((Vector3f)EntityUtils.getScale(parent)));
@@ -57,7 +60,12 @@ public class AttachUtils {
 //                    Quaternionf rotation = parentActor.getBoneRotation(targetBone);
 //                    EntityUtils.getRotation(currentEntity).set(rotation).normalize();
                     Vector3d facingAngle = CreatureUtils.getFacingVector(parent);
-                    EntityUtils.getRotation(currentEntity).rotationTo(new Vector3f(0,0,1), new Vector3f((float)facingAngle.x,(float)facingAngle.y,(float)facingAngle.z)).mul(parentActor.getBoneRotation(targetBone)).normalize();
+                    //calculate rotation of model
+                    EntityUtils.getRotation(currentEntity)
+                        .rotationTo(new Vector3f(0,0,1), new Vector3f((float)facingAngle.x,(float)facingAngle.y,(float)facingAngle.z))
+                        .mul(parentActor.getBoneRotation(targetBone))
+                        .mul(offsetRotation)
+                        .normalize();
                 }
             }
         }
@@ -85,6 +93,10 @@ public class AttachUtils {
         return (Entity)e.getData(EntityDataStrings.ATTACH_PARENT);
     }
 
+    protected static Quaternionf getRotationOffset(Entity e){
+        return (Quaternionf)e.getData(EntityDataStrings.ATTACH_ROTATION_OFFSET);
+    }
+    
     public static boolean hasChildren(Entity e){
         return e.containsKey(EntityDataStrings.ATTACH_CHILDREN_LIST) && !getChildrenList(e).isEmpty();
     }
@@ -104,4 +116,9 @@ public class AttachUtils {
             parent.putData(EntityDataStrings.ATTACH_CHILDREN_LIST, childrenEntities);
         }
     }
+
+    public static Quaternionf getEquipPointRotationOffset(List<Float> values){
+        return new Quaternionf(values.get(0),values.get(1),values.get(2),values.get(3));
+    }
+
 }

src/main/java/electrosphere/game/server/unit/UnitUtils.java

@@ -8,6 +8,8 @@ import electrosphere.entity.types.creature.CreatureUtils;
 import electrosphere.entity.types.item.ItemUtils;
 import electrosphere.game.server.ai.creature.MillAbout;
 
+import org.joml.Quaterniond;
+import org.joml.Quaternionf;
 import org.joml.Vector3d;
 import org.joml.Vector3f;
 
@@ -23,7 +25,7 @@ public class UnitUtils {
         EntityUtils.getScale(goblin).set(0.005f);
         //give evil goblin sword
         Entity goblinSword = ItemUtils.spawnBasicItem("Katana");
-        AttachUtils.attachEntityToEntityAtBone(goblin, goblinSword, "Bone.031");
+        AttachUtils.attachEntityToEntityAtBone(goblin, goblinSword, "Bone.031", new Quaternionf());
         //attach ai to evil goblin
         MillAbout.attachToCreature(goblin);
 //        MindlessAttacker.attachToCreature(goblin);

src/main/java/electrosphere/main/Main.java

@@ -37,6 +37,7 @@ import java.util.Iterator;
 import java.util.Random;
 import java.util.concurrent.TimeUnit;
 import org.joml.Matrix4f;
+import org.joml.Quaterniond;
 import org.joml.Quaternionf;
 import org.joml.Vector3f;
 import org.lwjgl.glfw.*;

src/main/java/electrosphere/net/client/protocol/EntityProtocol.java

@@ -1,5 +1,8 @@
 package electrosphere.net.client.protocol;
 
+import org.joml.Quaterniond;
+import org.joml.Quaternionf;
+
 import electrosphere.entity.Entity;
 import electrosphere.entity.EntityUtils;
 import electrosphere.entity.types.attach.AttachUtils;
@@ -79,7 +82,7 @@ public class EntityProtocol {
                 Entity parent = Globals.entityManager.getEntityFromId(message.gettargetID());
                 LoggerInterface.loggerNetworking.DEBUG("Attach " + message.getentityID() + " to " + message.gettargetID() + " on bone " + message.getbone());
                 if(child != null && parent != null){
-                    AttachUtils.attachEntityToEntityAtBone(parent, child, message.getbone());
+                    AttachUtils.attachEntityToEntityAtBone(parent, child, message.getbone(), new Quaternionf());
                 }
                 break;
             case MOVEUPDATE: