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import ctypes
import time
import xr
EVENT_NONE = 0
EVENT_RISING_EDGE = 1
EVENT_FALLING_EDGE = 2
# hand: either "right" or "left"
# button: either "a" or "b"
def pollButtonPress(hand: str = "right", button: str = "b") -> int:
# ContextObject is a high level pythonic class meant to keep simple cases simple.
with xr.ContextObject(
instance_create_info=xr.InstanceCreateInfo(
enabled_extension_names=[
xr.KHR_OPENGL_ENABLE_EXTENSION_NAME, # A graphics extension is mandatory
],
),
) as context:
controller_path_str = f"/user/hand/{hand}"
binding_path_str = f"/user/hand/{hand}/input/{button}/click"
print(f"Controller path: {controller_path_str}")
print(f"Binding path: {binding_path_str}")
# Set up the B button action
controller_paths = (xr.Path * 1)(
xr.string_to_path(context.instance, controller_path_str,)
)
b_button_action = xr.create_action(
action_set=context.default_action_set,
create_info=xr.ActionCreateInfo(
action_type=xr.ActionType.BOOLEAN_INPUT,
action_name="tastt_button_press",
localized_action_name="TaSTT Button Press",
count_subaction_paths=len(controller_paths),
subaction_paths=controller_paths,
),
)
suggested_bindings = (xr.ActionSuggestedBinding * 1)(
xr.ActionSuggestedBinding(
action=b_button_action,
binding=xr.string_to_path(
instance=context.instance,
path_string=binding_path_str,
),
),
)
xr.suggest_interaction_profile_bindings(
instance=context.instance,
suggested_bindings=xr.InteractionProfileSuggestedBinding(
interaction_profile=xr.string_to_path(
context.instance,
"/interaction_profiles/valve/index_controller",
),
count_suggested_bindings=len(suggested_bindings),
suggested_bindings=suggested_bindings,
),
)
last_change_time = 0
for frame_index, frame_state in enumerate(context.frame_loop()):
if context.session_state != xr.SessionState.FOCUSED:
yield EVENT_NONE
continue
active_action_set = xr.ActiveActionSet(
action_set=context.default_action_set,
subaction_path=xr.NULL_PATH,
)
xr.sync_actions(
session=context.session,
sync_info=xr.ActionsSyncInfo(
count_active_action_sets=1,
active_action_sets=ctypes.pointer(active_action_set),
),
)
action_info = xr.ActionStateGetInfo(action=b_button_action)
action_bool = xr.get_action_state_boolean(
session=context.session, get_info=action_info
)
if action_bool.changed_since_last_sync == 0:
yield EVENT_NONE
continue
if action_bool.current_state == 1:
yield EVENT_RISING_EDGE
continue
else:
yield EVENT_FALLING_EDGE
continue
if __name__ == "__main__":
gen = run()
while True:
event = next(gen)
print(f"event: {event}")
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