UnrealEnginePython/examples/blueprint_example_generator.py at develop · 20tab/UnrealEnginePython · GitHub

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import unreal_engine as ue

from unreal_engine.classes import BlueprintFactory, DirectionalLightComponent, K2Node_Event

import time

# create new blueprint from factory

bpFactory = BlueprintFactory()

bp = bpFactory.factory_create_new('/Game/test' + str(int(time.time())))

# add intensity variable

intensity = ue.blueprint_add_member_variable(bp, 'intensity', 'float')

# set its visibility to True

ue.blueprint_set_variable_visibility(bp, 'intensity', True)

# add directional light component

directLightComponent = ue.add_component_to_blueprint(bp,DirectionalLightComponent, "Directional_light")

# add node variables (get) to the graph

intensity_node = bp.UberGraphPages[0].graph_add_node_variable_get('intensity', None, 200, 100)

directional_light_node = bp.UberGraphPages[0].graph_add_node_variable_get('Directional_light', None, 200, 0)

# add the SetIntensity node (from DirectionalLightComponent)

directional_light_set_intensity = bp.UberGraphPages[0].graph_add_node_call_function(DirectionalLightComponent.SetIntensity, 400, 0)

# link variables

intensity_node.node_find_pin('intensity').make_link_to(directional_light_set_intensity.node_find_pin('NewIntensity'))

directional_light_node.node_find_pin('Directional_light').make_link_to(directional_light_set_intensity.node_find_pin('self'))

# a commodity function for finding an event node

def get_event_node(event_name):

for node in bp.UberGraphPages[0].Nodes:

if node.is_a(K2Node_Event):

if node.EventReference.MemberName == event_name:

return node

# get the ReceiveBeginPlay event node

begin_play_node = get_event_node('ReceiveBeginPlay')

# link BeginPlay to SetIntensity

begin_play_node.node_find_pin('then').make_link_to(directional_light_set_intensity.node_find_pin('execute'))

# compile the blueprint

ue.compile_blueprint(bp)

# open related editor

ue.open_editor_for_asset(bp)

# spawn it

ue.get_editor_world().actor_spawn(bp.GeneratedClass)