feat(studio,stacking,animations,collections): M16 ModBison Studio, object stacking, model animations, and poly collections for MVP 2

scripts/world_object.gd

@@ -27,6 +27,9 @@ var scale: Vector3 = Vector3.ONE
 ## Type-specific key/value properties.
 var properties: Dictionary = {}
 
+## Parent object ID when stacked on top of or attached to another object.
+var parent_id: String = ""
+
 ## Whether this is a spawnable dynamic entity (true) or static (false).
 var is_dynamic: bool = false
 
@@ -55,6 +58,7 @@ func _init(
 	rotation = p_rotation
 	scale = p_scale
 	properties = p_properties
+	parent_id = str(properties.get("parent_id", ""))
 	is_dynamic = p_dynamic
 	if p_flags != null:
 		flags = p_flags
@@ -93,7 +97,7 @@ func get_display_name() -> String:
 
 ## Serialize this object to a dictionary (for networking).
 func to_dict() -> Dictionary:
-	return {
+	var d := {
 		"id": id,
 		"type": type,
 		"asset_id": asset_id,
@@ -103,6 +107,9 @@ func to_dict() -> Dictionary:
 		"properties": properties,
 		"dynamic": is_dynamic,
 	}
+	if parent_id != "":
+		d["parent_id"] = parent_id
+	return d
 
 
 ## Create a WorldObject from a dictionary (for networking).
@@ -123,6 +130,9 @@ static func from_dict(d: Dictionary) -> WorldObject:
 		d.get("scale", [1, 1, 1])[1],
 		d.get("scale", [1, 1, 1])[2]
 	)
+	var props: Dictionary = d.get("properties", {}).duplicate()
+	if d.has("parent_id") and not props.has("parent_id"):
+		props["parent_id"] = d["parent_id"]
 	return WorldObject.new(
 		d.get("id", ""),
 		d.get("type", ""),
@@ -130,6 +140,6 @@ static func from_dict(d: Dictionary) -> WorldObject:
 		pos,
 		rot,
 		scl,
-		d.get("properties", {}),
+		props,
 		d.get("dynamic", false),
 	)