the-lost-memory/project/addons/dialogic/Nodes/random_audio_stream_player.gd

92 lines
3.5 KiB
GDScript

# Random Audio Stream PLayer Godot Engine Add-on
# Copyright (c) Tim Krief.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
tool
extends AudioStreamPlayer
export(Array, AudioStream) var samples = []
export(String, DIR) var select_samples_from_folder setget load_samples_from_folder
export(int, "Pure", "No consecutive repetition", "Use all samples before repeat") var random_strategy = 0
onready var base_volume = volume_db
export(float, 0, 80) var random_volume_range = 0
onready var base_pitch = pitch_scale
export(float, 0, 4) var random_pitch_range = 0
var playing_sample_nb : int = -1
var last_played_sample_nb : int = -1 # only used if random_strategy = 1
var to_play = [] # only used if random_strategy = 2
# You can use playing_sample_nb to choose what sample to use
func play(from_position=0.0, playing_sample_nb=-1):
var number_of_samples = len(samples)
if number_of_samples > 0:
if playing_sample_nb < 0:
if number_of_samples == 1:
playing_sample_nb = 0
else:
match random_strategy:
1:
playing_sample_nb = randi() % (number_of_samples - 1)
if last_played_sample_nb == playing_sample_nb:
playing_sample_nb += 1
last_played_sample_nb = playing_sample_nb
2:
if len(to_play) == 0:
for i in range(number_of_samples):
if i != last_played_sample_nb:
to_play.append(i)
to_play.shuffle()
playing_sample_nb = to_play.pop_back()
last_played_sample_nb = playing_sample_nb
_:
playing_sample_nb = randi() % number_of_samples
if random_volume_range != 0:
.set_volume_db(base_volume + (randf() - .5) * random_volume_range)
if random_pitch_range != 0:
.set_pitch_scale(max(0.0001, base_pitch + (randf() - .5) * random_pitch_range))
set_stream(samples[playing_sample_nb])
.play(from_position)
func set_volume_db(new_volume_db):
.set_volume_db(new_volume_db)
base_volume = new_volume_db
func set_pitch_scale(new_pitch):
.set_pitch_scale(max(0.0001, new_pitch))
base_pitch = new_pitch
func load_samples_from_folder(path):
if path != "":
samples.clear()
var dir = Directory.new()
if dir.open(path) == OK:
dir.list_dir_begin(true)
var file_name = dir.get_next()
while file_name != "":
if not dir.current_is_dir() and file_name.ends_with(".import"):
var resource_path = dir.get_current_dir() + "/" + file_name.replace('.import', '')
if resource_path.get_extension().to_lower() in ["wav", "ogg"]:
var resource = load(resource_path)
if resource != null:
samples.append(resource)
file_name = dir.get_next()
select_samples_from_folder = ""