# Basic principle, in Actions is:
# Actions DO BELONG to Blender data, NOT to the object

# the actions are listed in the Actions proprety of Blender Data
# The curves, that form the action are listed in f-curves property
#   The way to identify each croup of curves, are the
#   Groups, or, data_path properties.
# Each curve has a keyframe item, listed in the Keyframes property.

import bpy
import math

# get an object which will be associated to the animation
obj = bpy.data.objects["Cube"]

# get the actions
actions = bpy.data.actions

#create a name for the new action.
newActionName = "Action#"+str(len(actions))

#instantiate new action
newaction = bpy.data.actions.new(name=newActionName)

#creating curves for rotation
fcu_Rx = newaction.fcurves.new("rotation_euler", 0, "Rotation")
fcu_Ry = newaction.fcurves.new("rotation_euler", 1, "Rotation")
fcu_Rz = newaction.fcurves.new("rotation_euler", 2, "Rotation")


#inserting keyframes
fcu_Rx.keyframe_points.insert(0, 0)
fcu_Rx.keyframe_points.insert(10, math.radians(180))# angle in radians

fcu_Ry.keyframe_points.insert(0, 0)
fcu_Ry.keyframe_points.insert(10,0)

fcu_Rz.keyframe_points.insert(0, 0)
fcu_Rz.keyframe_points.insert(10,0)

# Change curve style.
fcu_Ry.keyframe_points.insert(10, math.radians(90))
# editando interpolação (o primeiro keyframe dita o modo de interpolação para o segmento)
fcu_Ry.keyframe_points[0].interpolation =   "BEZIER"
                                            #"LINEAR"
                                            #"CONSTANT"
                                            #"BEZIER"

#You can edit the curve handlers - left handle / right hadle
fcu_Ry.keyframe_points[1].handle_left.x = 10
fcu_Ry.keyframe_points[1].handle_left.y = 1

fcu_Ry.keyframe_points[1].handle_right.x = 12
fcu_Ry.keyframe_points[1].handle_right.y = 1.8

#attach new action to the object
obj.animation_data.action = newaction