Pfthb

In Blender I am using the modal operator template to move an object and record its position as a keyframe.

I am doing something like this:

import bpy
from bpy.props import IntProperty, FloatProperty

class ModalOperator(bpy.types.Operator):
 """Move an object with the mouse, example"""
 bl_idname = "object.modal_operator"
 bl_label = "Simple Modal Operator"

 first_mouse_x = IntProperty()
 first_value = FloatProperty()
 current_frame = 1
 endframe = bpy.data.scenes["Scene"].frame_end

 def modal(self, context, event):
 if event.type == 'MOUSEMOVE':
 if self.current_frame < self.endframe:
 delta = self.first_mouse_x - event.mouse_x
 context.object.location.x = self.first_value + delta * 0.01
 context.scene.frame_set(self.current_frame)
 bpy.ops.anim.keyframe_insert_menu(type="Rotation")
 bpy.ops.anim.keyframe_insert_menu(type="Location")
 self.current_frame+=1

 elif event.type == 'LEFTMOUSE':
 return 'FINISHED'

 elif event.type in 'RIGHTMOUSE', 'ESC':
 context.object.location.x = self.first_value
 return 'CANCELLED'

 return 'RUNNING_MODAL'

Happens that before it inserts all keyframes and only after you can move the cube with the mouse, for instance. I would like to move the cube and "record" its movement at the same time. Is there a solution for that?

The easy solution would be to enable blenders Auto Keyframing.

If you still want to get your operator working, I expect you will need to not call other operators and work with the data directly, particularly within a modal operator.

context.object.keyframe_insert('location')
context.object.keyframe_insert('rotation_euler')

Ok I solved this one.

I was calling the keyframe_insert for the wrong object (anim, instead of the cube itself)

This is the proper way to insert it, for example when the object is a camera:

camera = bpy.context.scene.camera
camera.keyframe_insert(data_path='location', index=0)
camera.keyframe_insert(data_path='location', index=1)
camera.keyframe_insert(data_path='location', index=2)
camera.keyframe_insert('rotation_quaternion')

in this way the keyframes are inserted on play.