|
@@ -1,355 +0,0 @@ |
|
|
extends Node |
|
|
|
|
|
class_name YarnImporter |
|
|
|
|
|
|
|
|
|
|
|
# |
|
|
|
|
|
# A YARN Importer for Godot |
|
|
|
|
|
# |
|
|
|
|
|
# Credits: |
|
|
|
|
|
# - Dave Kerr (http://www.naturallyintelligent.com) |
|
|
|
|
|
# |
|
|
|
|
|
# Latest: https://github.com/naturally-intelligent/godot-yarn-importer |
|
|
|
|
|
# |
|
|
|
|
|
# Yarn: https://github.com/InfiniteAmmoInc/Yarn |
|
|
|
|
|
# Twine: http://twinery.org |
|
|
|
|
|
# |
|
|
|
|
|
# Yarn: a ball of threads (Yarn file) |
|
|
|
|
|
# Thread: a series of fibres (Yarn node) |
|
|
|
|
|
# Fibre: a text or choice or logic (Yarn line) |
|
|
|
|
|
|
|
|
|
|
|
var yarn = {} |
|
|
|
|
|
|
|
|
|
|
|
# OVERRIDE METHODS |
|
|
|
|
|
# |
|
|
|
|
|
# called to request new dialog |
|
|
|
|
|
func on_new_line(text): |
|
|
|
|
|
pass |
|
|
|
|
|
|
|
|
|
|
|
# called to request new choice button |
|
|
|
|
|
func on_choices(choices_list): |
|
|
|
|
|
pass |
|
|
|
|
|
|
|
|
|
|
|
# called to request internal logic handling |
|
|
|
|
|
func logic(instruction, command): |
|
|
|
|
|
pass |
|
|
|
|
|
|
|
|
|
|
|
# called for each line of text |
|
|
|
|
|
func yarn_text_variables(text): |
|
|
|
|
|
return text |
|
|
|
|
|
|
|
|
|
|
|
# called when "settings" node parsed |
|
|
|
|
|
func story_setting(setting, value): |
|
|
|
|
|
pass |
|
|
|
|
|
|
|
|
|
|
|
# called for each node name |
|
|
|
|
|
func on_node_start(to): |
|
|
|
|
|
pass |
|
|
|
|
|
yield(get_tree(), "idle_frame") |
|
|
|
|
|
|
|
|
|
|
|
# called for each node name (after) |
|
|
|
|
|
func on_node_end(to): |
|
|
|
|
|
pass |
|
|
|
|
|
yield(get_tree(), "idle_frame") |
|
|
|
|
|
|
|
|
|
|
|
# START SPINNING YOUR YARN |
|
|
|
|
|
# |
|
|
|
|
|
func spin_yarn(file, start_thread = false): |
|
|
|
|
|
yarn = load_yarn(file) |
|
|
|
|
|
# Find the starting thread... |
|
|
|
|
|
if not start_thread: |
|
|
|
|
|
start_thread = yarn['start'] |
|
|
|
|
|
# Load any scene-specific settings |
|
|
|
|
|
# (Not part of official Yarn standard) |
|
|
|
|
|
if 'settings' in yarn['threads']: |
|
|
|
|
|
var settings = yarn['threads']['settings'] |
|
|
|
|
|
for fibre in settings['fibres']: |
|
|
|
|
|
var line = fibre['text'] |
|
|
|
|
|
var split = line.split('=') |
|
|
|
|
|
var setting = split[0].strip_edges(true, true) |
|
|
|
|
|
var value = split[1].strip_edges(true, true) |
|
|
|
|
|
story_setting(setting, value) |
|
|
|
|
|
# First thread unravel... |
|
|
|
|
|
yield(on_dialogue_start(), "completed") |
|
|
|
|
|
yield(yarn_unravel(start_thread), "completed") |
|
|
|
|
|
|
|
|
|
|
|
# Internally create a new thread (during loading) |
|
|
|
|
|
func new_yarn_thread(): |
|
|
|
|
|
var thread = {} |
|
|
|
|
|
thread['title'] = '' |
|
|
|
|
|
thread['kind'] = 'branch' # 'branch' for standard dialog, 'code' for gdscript |
|
|
|
|
|
thread['tags'] = [] # unused |
|
|
|
|
|
thread['fibres'] = [] |
|
|
|
|
|
return thread |
|
|
|
|
|
|
|
|
|
|
|
func exec(stri): |
|
|
|
|
|
var expr := Expression.new() |
|
|
|
|
|
print("input : " + stri) |
|
|
|
|
|
var err := expr.parse(stri) |
|
|
|
|
|
if err == OK: |
|
|
|
|
|
var res = expr.execute() |
|
|
|
|
|
print("res : " + str(res)) |
|
|
|
|
|
else: |
|
|
|
|
|
print("err : " + str(err)) |
|
|
|
|
|
|
|
|
|
|
|
func jajoujaj(): |
|
|
|
|
|
print("jaaaja") |
|
|
|
|
|
|
|
|
|
|
|
# Internally create a new fibre (during loading) |
|
|
|
|
|
func new_yarn_fibre(line:String): |
|
|
|
|
|
# choice fibre |
|
|
|
|
|
if line.substr(0,2) == '[[': |
|
|
|
|
|
if line.find('|') != -1: |
|
|
|
|
|
var fibre = {} |
|
|
|
|
|
fibre['kind'] = 'choice' |
|
|
|
|
|
line = line.replace('[[', '') |
|
|
|
|
|
line = line.replace(']]', '') |
|
|
|
|
|
var split = line.split('|') |
|
|
|
|
|
fibre['text'] = split[0] |
|
|
|
|
|
fibre['marker'] = split[1] |
|
|
|
|
|
return fibre |
|
|
|
|
|
else: |
|
|
|
|
|
var fibre = {} |
|
|
|
|
|
fibre['kind'] = 'jump' |
|
|
|
|
|
line = line.replace('[[', '') |
|
|
|
|
|
line = line.replace(']]', '') |
|
|
|
|
|
fibre['marker'] = line |
|
|
|
|
|
return fibre |
|
|
|
|
|
# logic instruction (not part of official Yarn standard) |
|
|
|
|
|
elif line.substr(0,2) == '<<': |
|
|
|
|
|
line = line.replace('<<', '') |
|
|
|
|
|
line = line.replace('>>', '') |
|
|
|
|
|
var line_split = line.split(' ') |
|
|
|
|
|
print (line_split) |
|
|
|
|
|
var command = line.substr(line.find(' ')) |
|
|
|
|
|
exec(command) |
|
|
|
|
|
|
|
|
|
|
|
# if line.find(':') != -1: |
|
|
|
|
|
# fibre['kind'] = 'logic' |
|
|
|
|
|
# line = line.replace('<<', '') |
|
|
|
|
|
# line = line.replace('>>', '') |
|
|
|
|
|
# var split = line.split(':') |
|
|
|
|
|
# fibre['instruction'] = split[0] |
|
|
|
|
|
# fibre['command'] = split[1] |
|
|
|
|
|
# #print(line, split[0], split[1]) |
|
|
|
|
|
# return fibre |
|
|
|
|
|
# text fibre |
|
|
|
|
|
var fibre = {} |
|
|
|
|
|
fibre['kind'] = 'text' |
|
|
|
|
|
fibre['text'] = line |
|
|
|
|
|
return fibre |
|
|
|
|
|
|
|
|
|
|
|
# Create Yarn data structure from file (must be *.yarn.txt Yarn format) |
|
|
|
|
|
func load_yarn(path): |
|
|
|
|
|
var yarn = {} |
|
|
|
|
|
yarn['threads'] = {} |
|
|
|
|
|
yarn['start'] = false |
|
|
|
|
|
yarn['file'] = path |
|
|
|
|
|
var file = File.new() |
|
|
|
|
|
file.open(path, file.READ) |
|
|
|
|
|
if file.is_open(): |
|
|
|
|
|
# yarn reading flags |
|
|
|
|
|
var start = false |
|
|
|
|
|
var header = true |
|
|
|
|
|
var thread = new_yarn_thread() |
|
|
|
|
|
# loop |
|
|
|
|
|
while !file.eof_reached(): |
|
|
|
|
|
# read a line |
|
|
|
|
|
var line = file.get_line() |
|
|
|
|
|
# header read mode |
|
|
|
|
|
if header: |
|
|
|
|
|
if line == '---': |
|
|
|
|
|
header = false |
|
|
|
|
|
else: |
|
|
|
|
|
var split = line.split(': ') |
|
|
|
|
|
if split[0] == 'title': |
|
|
|
|
|
var title_split = split[1].split(':') |
|
|
|
|
|
var thread_title = '' |
|
|
|
|
|
var thread_kind = 'branch' |
|
|
|
|
|
if len(title_split) == 1: |
|
|
|
|
|
thread_title = split[1] |
|
|
|
|
|
else: |
|
|
|
|
|
thread_title = title_split[1] |
|
|
|
|
|
thread_kind = title_split[0] |
|
|
|
|
|
thread['title'] = thread_title |
|
|
|
|
|
thread['kind'] = thread_kind |
|
|
|
|
|
if not yarn['start']: |
|
|
|
|
|
yarn['start'] = thread_title |
|
|
|
|
|
# end of thread |
|
|
|
|
|
elif line == '===': |
|
|
|
|
|
header = true |
|
|
|
|
|
yarn['threads'][thread['title']] = thread |
|
|
|
|
|
thread = new_yarn_thread() |
|
|
|
|
|
# fibre read mode |
|
|
|
|
|
else: |
|
|
|
|
|
var fibre = new_yarn_fibre(line) |
|
|
|
|
|
if fibre: |
|
|
|
|
|
thread['fibres'].append(fibre) |
|
|
|
|
|
else: |
|
|
|
|
|
print('ERROR: Yarn file missing: ', filename) |
|
|
|
|
|
return yarn |
|
|
|
|
|
|
|
|
|
|
|
# Main logic for node handling |
|
|
|
|
|
# |
|
|
|
|
|
func yarn_unravel(to, from=false): |
|
|
|
|
|
if not to in yarn['threads']: |
|
|
|
|
|
print('WARNING: Missing Yarn thread: ', to, ' in file ',yarn['file']) |
|
|
|
|
|
return |
|
|
|
|
|
|
|
|
|
|
|
while to != null and to in yarn['threads']: |
|
|
|
|
|
yield (on_node_start(to), "completed") |
|
|
|
|
|
if to in yarn['threads']: |
|
|
|
|
|
var thread = yarn['threads'][to] |
|
|
|
|
|
to = null |
|
|
|
|
|
match thread['kind']: |
|
|
|
|
|
'branch': |
|
|
|
|
|
var i = 0 |
|
|
|
|
|
while i < thread['fibres'].size(): |
|
|
|
|
|
match thread['fibres'][i]['kind']: |
|
|
|
|
|
'text': |
|
|
|
|
|
var fibre = thread['fibres'][i] |
|
|
|
|
|
var text = yarn_text_variables(fibre['text']) |
|
|
|
|
|
yield(on_new_line(text), "completed") |
|
|
|
|
|
'choice': |
|
|
|
|
|
var choices = [] |
|
|
|
|
|
while i < thread['fibres'].size() and thread['fibres'][i]['kind'] == 'choice' : |
|
|
|
|
|
var fibre = thread['fibres'][i] |
|
|
|
|
|
var text = yarn_text_variables(fibre['text']) |
|
|
|
|
|
choices.push_back({"text": text, "marker": fibre['marker']}) |
|
|
|
|
|
i += 1 |
|
|
|
|
|
to = yield(on_choices(choices), "completed") |
|
|
|
|
|
break |
|
|
|
|
|
'logic': |
|
|
|
|
|
var fibre = thread['fibres'][i] |
|
|
|
|
|
var instruction = fibre['instruction'] |
|
|
|
|
|
var command = fibre['command'] |
|
|
|
|
|
yield(logic(instruction, command), "completed") |
|
|
|
|
|
'jump': |
|
|
|
|
|
var fibre = thread['fibres'][i] |
|
|
|
|
|
to = fibre['marker'] |
|
|
|
|
|
break |
|
|
|
|
|
i += 1 |
|
|
|
|
|
'code': |
|
|
|
|
|
yarn_code(to) |
|
|
|
|
|
yield(on_node_end(to), "completed") |
|
|
|
|
|
|
|
|
|
|
|
yield (on_dialogue_end(), "completed") |
|
|
|
|
|
|
|
|
|
|
|
func on_dialogue_start(): |
|
|
|
|
|
pass |
|
|
|
|
|
yield(get_tree(), "idle_frame") |
|
|
|
|
|
|
|
|
|
|
|
func on_dialogue_end(): |
|
|
|
|
|
pass |
|
|
|
|
|
yield(get_tree(), "idle_frame") |
|
|
|
|
|
|
|
|
|
|
|
# |
|
|
|
|
|
# RUN GDSCRIPT CODE FROM YARN NODE - Special node = code:title |
|
|
|
|
|
# - Not part of official Yarn standard |
|
|
|
|
|
# |
|
|
|
|
|
func yarn_code(title, run=true, parent='parent.', tabs="\t", next_func="yarn_unravel"): |
|
|
|
|
|
if title in yarn['threads']: |
|
|
|
|
|
var thread = yarn['threads'][title] |
|
|
|
|
|
var code = '' |
|
|
|
|
|
for fibre in thread['fibres']: |
|
|
|
|
|
match fibre['kind']: |
|
|
|
|
|
'text': |
|
|
|
|
|
var line = yarn_text_variables(fibre['text']) |
|
|
|
|
|
line = yarn_code_replace(line, parent, next_func) |
|
|
|
|
|
code += tabs + line + "\n" |
|
|
|
|
|
'choice': |
|
|
|
|
|
var line = parent+next_func+"('"+fibre['marker']+"')" |
|
|
|
|
|
print(line) |
|
|
|
|
|
code += tabs + line + "\n" |
|
|
|
|
|
if run: |
|
|
|
|
|
run_yarn_code(code) |
|
|
|
|
|
else: |
|
|
|
|
|
return code |
|
|
|
|
|
else: |
|
|
|
|
|
print('WARNING: Title missing in yarn ball: ', title) |
|
|
|
|
|
|
|
|
|
|
|
# override to replace convenience variables |
|
|
|
|
|
func yarn_code_replace(code, parent='parent.', next_func="yarn_unravel"): |
|
|
|
|
|
if code.find("[[") != -1: |
|
|
|
|
|
code = code.replace("[[", parent+next_func+"('") |
|
|
|
|
|
code = code.replace("]]", "')") |
|
|
|
|
|
code = code.replace("say(", parent+"say(") |
|
|
|
|
|
code = code.replace("choice(", parent+"choice(") |
|
|
|
|
|
return code |
|
|
|
|
|
|
|
|
|
|
|
func run_yarn_code(code): |
|
|
|
|
|
var front = "extends Node\n" |
|
|
|
|
|
front += "func dynamic_code():\n" |
|
|
|
|
|
front += "\tvar parent = get_parent()\n\n" |
|
|
|
|
|
code = front + code |
|
|
|
|
|
#print("CODE BLOCK: \n", code) |
|
|
|
|
|
|
|
|
|
|
|
var script = GDScript.new() |
|
|
|
|
|
script.set_source_code(code) |
|
|
|
|
|
script.reload() |
|
|
|
|
|
|
|
|
|
|
|
#print("Executing code...") |
|
|
|
|
|
var node = Node.new() |
|
|
|
|
|
node.set_script(script) |
|
|
|
|
|
add_child(node) |
|
|
|
|
|
var result = node.dynamic_code() |
|
|
|
|
|
remove_child(node) |
|
|
|
|
|
|
|
|
|
|
|
return result |
|
|
|
|
|
|
|
|
|
|
|
# EXPORTING TO GDSCRIPT |
|
|
|
|
|
# |
|
|
|
|
|
# This code may not be directly usable |
|
|
|
|
|
# Use if you need an exit from Yarn |
|
|
|
|
|
|
|
|
|
|
|
func export_to_gdscript(): |
|
|
|
|
|
var script = '' |
|
|
|
|
|
script += "func start_story():\n\n" |
|
|
|
|
|
if 'settings' in yarn['threads']: |
|
|
|
|
|
var settings = yarn['threads']['settings'] |
|
|
|
|
|
for fibre in settings['fibres']: |
|
|
|
|
|
var line = fibre['text'] |
|
|
|
|
|
var split = line.split('=') |
|
|
|
|
|
var setting = split[0].strip_edges(true, true) |
|
|
|
|
|
var value = split[1].strip_edges(true, true) |
|
|
|
|
|
script += "\t" + 'story_setting("' + setting + '", "' + value + '")' + "\n" |
|
|
|
|
|
script += "\tstory_logic('" + yarn['start'] + "')\n\n" |
|
|
|
|
|
# story logic choice/press event |
|
|
|
|
|
script += "func story_logic(marker):\n\n" |
|
|
|
|
|
script += "\tmatch marker:\n" |
|
|
|
|
|
for title in yarn['threads']: |
|
|
|
|
|
var thread = yarn['threads'][title] |
|
|
|
|
|
match thread['kind']: |
|
|
|
|
|
'branch': |
|
|
|
|
|
var code = "\n\t\t'" + thread['title'] + "':" |
|
|
|
|
|
var tabs = "\n\t\t\t" |
|
|
|
|
|
for fibre in thread['fibres']: |
|
|
|
|
|
match fibre['kind']: |
|
|
|
|
|
'text': |
|
|
|
|
|
code += tabs + 'say("' + fibre['text'] + '")' |
|
|
|
|
|
'choice': |
|
|
|
|
|
code += tabs + 'choice("' + fibre['text'] + '", "' + fibre['marker'] + '")' |
|
|
|
|
|
'logic': |
|
|
|
|
|
code += tabs + 'logic("' + fibre['instruction'] + '", "' + fibre['command'] + '")' |
|
|
|
|
|
script += code + "\n" |
|
|
|
|
|
'code': |
|
|
|
|
|
var code = "\n\t\t'" + thread['title'] + "':" |
|
|
|
|
|
var tabs = "\n\t\t\t" |
|
|
|
|
|
code += "\n" |
|
|
|
|
|
code += yarn_code(thread['title'], false, '', "\t\t\t", "story_logic") |
|
|
|
|
|
script += code + "\n" |
|
|
|
|
|
# done |
|
|
|
|
|
return script |
|
|
|
|
|
|
|
|
|
|
|
func print_gdscript_to_console(): |
|
|
|
|
|
print(export_to_gdscript()) |
|
|
|
|
|
|
|
|
|
|
|
func save_to_gdscript(filename): |
|
|
|
|
|
var script = export_to_gdscript() |
|
|
|
|
|
# write to file |
|
|
|
|
|
var file = File.new() |
|
|
|
|
|
file.open(filename, file.WRITE) |
|
|
|
|
|
if not file.is_open(): |
|
|
|
|
|
print('ERROR: Cant open file ', filename) |
|
|
|
|
|
return false |
|
|
|
|
|
file.store_string(script) |
|
|
|
|
|
file.close() |
|
|
|
|
|
|
|
|
|