Work on the mesh data resource editor plugin.

game/addons/mesh_data_resource_editor/MDIGizmoPlugin.gd

@@ -0,0 +1,21 @@
+tool
+extends EditorSpatialGizmoPlugin
+
+const MDIGizmo = preload("res://addons/mesh_data_resource_editor/MIDGizmo.gd")
+
+func _init():
+	create_material("main", Color(1, 0, 0))
+	create_handle_material("handles")
+
+func get_name():
+	return "MDIGizmo"
+
+func get_priority():
+	return 100
+
+func create_gizmo(spatial):
+	if spatial is MeshDataInstance:
+		print("new gizmo")
+		return MDIGizmo.new()
+	else:
+		return null

game/addons/mesh_data_resource_editor/MIDGizmo.gd

@@ -0,0 +1,52 @@
+tool
+extends EditorSpatialGizmo
+
+var gizmo_size = 3.0
+
+func set_handle(index: int, camera: Camera, point: Vector2):
+	#print(index)
+	#print(point)
+	
+	
+	
+	pass
+
+func redraw():
+	#print("MIDGizmo redraw")
+		
+	clear()
+	
+	var node : MeshDataInstance = get_spatial_node()
+	
+	if !node:
+		return
+		
+	var mdr : MeshDataResource = node.mesh_data
+	
+	if !mdr:
+		return
+	
+	var handles_material : SpatialMaterial = get_plugin().get_material("handles", self)
+	
+	var handles : PoolVector3Array = mdr.array[ArrayMesh.ARRAY_VERTEX]
+	add_handles(handles, handles_material)
+	
+	var material = get_plugin().get_material("main", self)
+	var lines : PoolVector3Array = PoolVector3Array()
+	var indices : PoolIntArray = mdr.array[ArrayMesh.ARRAY_INDEX]
+	
+	if indices.size() % 3 == 0:
+		for i in range(0, len(indices), 3):
+			lines.append(handles[i])
+			lines.append(handles[i + 1])
+			
+			lines.append(handles[i + 1])
+			lines.append(handles[i + 2])
+			
+			lines.append(handles[i + 2])
+			lines.append(handles[i])
+			
+		
+	
+	add_lines(lines, material, false)
+

game/addons/mesh_data_resource_editor/plugin.gd

@@ -1,10 +1,12 @@
 tool
 extends EditorPlugin
 
+const MdiGizmoPlugin = preload("res://addons/mesh_data_resource_editor/MDIGizmoPlugin.gd")
+
+var gizmo_plugin = MdiGizmoPlugin.new()
 
 func _enter_tree():
-	pass
-
+	add_spatial_gizmo_plugin(gizmo_plugin)
 
 func _exit_tree():
-	pass
+	remove_spatial_gizmo_plugin(gizmo_plugin)

game/project.godot

@@ -311,7 +311,7 @@ window/size/ui_scale_touch=1.0
 
 [editor_plugins]
 
-enabled=PoolStringArray( "Godoxel", "gdpose", "mesh_data_resource_editor" )
+enabled=PoolStringArray( "Godoxel", "gdpose" )
 
 [ess]