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GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
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#+title: Godot Remote Control (godot-rc)
=godot-rc= is an addon that allows other application to control the Godot editor via a JSON API. This is primarily so that different editors can provide better Godot integrations, and in particular I am making this so that I can edit the scene tree (on a basic level) from within Emacs.
=godot-rc.el= contains my experiments in making this function. To use it in the current state, use =M-x initialize-godot-rc= inside a file within your Godot project. This starts a connection with the =godot-remote-control= addon. Swapping between =.tscn= files will update the =*scene-tree*= buffer with a display of the selected scene, and it will also open automatically in the Godot editor. You can kill =godot-rc= with =M-x kill-godot-rc=.

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GNU AFFERO GENERAL PUBLIC LICENSE
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[plugin]
name="GodotRemoteControl"
description="A server for remotely controlling the Godot editor."
author="Jakub Nowak"
version="1.0"
script="plugin.gd"

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addons/godot_remote_control/plugin.gd Normal file
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@tool
extends EditorPlugin
var server: TCPServer
var port := 6009
var peers : Array[StreamPeerTCP] = []
enum COMMAND {OPEN_SCENE}
func node_to_tree(node, root=false):
var n = {}
n["name"] = node.name
n["type"] = node.get_class()
n["index"] = node.get_index()
n["path"] = "/" + node.get_path().get_concatenated_names()
print(n)
var c = []
for i in node.get_children():
c.append(node_to_tree(i))
if len(c) > 0:
n["children"] = c
return n
func parse_command(str: String, peer: StreamPeerTCP):
var cmd = JSON.parse_string(str)
print(cmd)
match cmd["command"]:
"open-scene":
print("Opening")
EditorInterface.open_scene_from_path(cmd["scene"])
"get-scene-tree":
var result = node_to_tree(EditorInterface.get_edited_scene_root(), true)
result = JSON.stringify({"for-cmd": "get-scene-tree", "value": result})
peer.put_data(result.to_utf8_buffer())
"set-node-name":
var n = get_node(NodePath(cmd["path"]))
var new_name = cmd["new-name"]
print("setting ", n, "'s name as ", new_name)
n.name = new_name
_:
print("Not a valid command: ", cmd["command"])
if cmd["command"] != "get-scene-tree":
parse_command(JSON.stringify({"command": "get-scene-tree"}), peer)
func _enter_tree() -> void:
server = TCPServer.new()
server.listen(port)
print("Remote control server listening on port ", port)
func _process(delta: float) -> void:
if server.is_connection_available():
var peer = server.take_connection()
peer.set_no_delay(true)
peers.append(peer)
print("Took connection")
for peer in peers:
if peer.get_status() == 2 and peer.poll() == Error.OK:
if peer.get_available_bytes() > 0:
print("-----")
print(peer.get_status())
var packet = peer.get_utf8_string(peer.get_available_bytes())
parse_command(packet, peer)
print("-----")
else:
if peer.get_status() != 0:
peer.disconnect_from_host()
peers.erase(peer)
print("Peer removed.")
func _exit_tree() -> void:
server.stop()
print("Remote control server stopped.")

1
addons/godot_remote_control/plugin.gd.uid Normal file
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uid://c1atiup675vsx

150
godot-rc.el Normal file
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;;; godot-rc.el --- Remote control Godot from within Emacs -*- lexical-binding: t -*-
;; This file is not part of GNU Emacs
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This mode is intended to be used alongside the existing gdscript-modes,
;; and works to supplement them by introducing functionality such as scene
;; manipulation and editing.
;;; Code:
(require 'magit-section)
(defcustom godot-rc-host "127.0.0.1"
"Host IP address for the Godot engine running godot-rc."
:type 'string
:group 'godot-rc)
(defcustom godot-rc-port 6009
"Port for the Godot engine running godot-rc."
:type 'number
:group 'godot-rc)
(defvar godot-rc-selected-scene nil
"The currently selected scene - set automatically when visiting a .tscn file.")
(defvar godot-rc-process nil
"The network process for the remote control connection.")
(defvar godot-rc-project-root nil
"The project root of the active remote control connection.")
(defvar godot-rc-scene-tree-buffer nil
"The buffer that contains the scene tree.")
(defun open-scene-tree-buffer ()
"Create and/or open the scene tree buffer."
(setq godot-rc-scene-tree-buffer (get-buffer-create "*scene-tree*"))
(with-current-buffer godot-rc-scene-tree-buffer
(scene-tree-mode)))
(defun godot-rc-process-filter-function (proc resp)
"Handle RESP responses from the Godot PROC."
(let ((response (json-parse-string resp :object-type 'plist :array-type 'list)))
(cond
((equal "get-scene-tree" (plist-get response :for-cmd))
(scene-tree-render (plist-get response :value))))))
(defun initialize-godot-rc ()
"Initialize godot-rc using the current buffer to find the Godot project."
(interactive)
(setq godot-rc-project-root (locate-dominating-file default-directory "project.godot"))
(setq godot-rc-process (open-network-stream "godot-rc" "*godot-rc-stream*" godot-rc-host godot-rc-port))
(set-process-filter godot-rc-process #'godot-rc-process-filter-function)
(open-scene-tree-buffer))
(defun kill-godot-rc ()
"Stop the godot-rc process and reset all variables to nil."
(interactive)
(delete-process godot-rc-process)
(kill-buffer godot-rc-scene-tree-buffer)
(setq godot-rc-selected-scene nil
godot-rc-process nil
godot-rc-project-root nil
godot-rc-scene-tree-buffer nil))
(defun godot-rc-send-command (cmd-plist)
"Send the CMD-PLIST as a JSON string to Godot."
(when godot-rc-process
(process-send-string godot-rc-process (json-serialize cmd-plist))))
;; TODO: this needs to check if file-name is in the godot-rc-project-root and turn it into a res:// path
(defun godot-rc-open-scene (file-name &optional quiet)
"Open FILE-NAME as a scene in Godot."
(godot-rc-send-command `(:command "open-scene" :scene ,file-name :get-result ,(if quiet :false t)))
(setq godot-rc-selected-scene file-name))
(defun tscn-check-visibility (win)
"When WIN changes to a TSCN, tell Godot to open the scene."
(let ((buf (current-buffer)))
(when (equal (file-name-extension (buffer-file-name buf)) "tscn")
(godot-rc-open-scene (buffer-file-name buf)))))
(add-hook 'window-buffer-change-functions #'tscn-check-visibility)
(add-hook 'window-selection-change-functions #'tscn-check-visibility)
;;; Scene-tree-mode and relevant commands
(defclass scene-tree-node-section (magit-section)
(;(keymap :initform 'org-roam-node-map)
(node :initform nil))
"A `magit-section' used by `org-roam-mode' to outline NODE in its own heading.")
(defun insert-node (node depth)
"Insert a NODE and it's children as magit sections."
(magit-insert-section (scene-tree-node-section node)
(magit-insert-heading (concat
(make-string (* depth 2) ?\s)
(propertize (plist-get node :name) 'face 'font-lock-function-call-face)
" : "
(propertize (plist-get node :type) 'face 'font-lock-type-face)
"\n"))
(dolist (n (plist-get node :children))
(insert-node n (+ 1 depth)))))
(defun scene-tree-render (tree)
"Render the scene tree."
(with-current-buffer godot-rc-scene-tree-buffer
(let ((inhibit-read-only t))
(erase-buffer)
(magit-insert-section (magit-section "SceneTree")
(magit-insert-heading (file-name-nondirectory godot-rc-selected-scene)
"\n\n")
(insert-node tree 0))
(goto-char 0))))
(defun scene-tree-rename-at-point (name)
"Rename node at point."
(interactive "sNew name: ")
(let ((node-path (plist-get (slot-value (magit-current-section) 'value) :path)))
(godot-rc-send-command `(:command "set-node-name" :path ,node-path :new-name ,name))))
(defvar scene-tree-mode-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map magit-section-mode-map)
(define-key map [C-return] 'scene-tree-rename-at-point)
map
"Keymap for scene-tree-mode"))
(define-derived-mode scene-tree-mode magit-section-mode "Scene Tree"
"Mode for showing the scene tree."
:group 'godot-rc)
(provide 'godot-rc)
;;; godot-rc.el ends here

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<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><rect width="124" height="124" x="2" y="2" fill="#363d52" stroke="#212532" stroke-width="4" rx="14"/><g fill="#fff" transform="translate(12.322 12.322)scale(.101)"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 814 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H446l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c0 34 58 34 58 0v-86c0-34-58-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042" transform="translate(12.322 12.322)scale(.101)"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></svg>
Side by side

After

Width:  |  Height:  |  Size: 994 B

37
icon.svg.import Normal file
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[remap]
importer="texture"
type="CompressedTexture2D"
uid="uid://bckqkgb4mleth"
path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
metadata={
"vram_texture": false
}
[deps]
source_file="res://icon.svg"
dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
[params]
compress/mode=0
compress/high_quality=false
compress/lossy_quality=0.7
compress/hdr_compression=1
compress/normal_map=0
compress/channel_pack=0
mipmaps/generate=false
mipmaps/limit=-1
roughness/mode=0
roughness/src_normal=""
process/fix_alpha_border=true
process/premult_alpha=false
process/normal_map_invert_y=false
process/hdr_as_srgb=false
process/hdr_clamp_exposure=false
process/size_limit=0
detect_3d/compress_to=1
svg/scale=1.0
editor/scale_with_editor_scale=false
editor/convert_colors_with_editor_theme=false

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project.godot Normal file
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; Engine configuration file.
; It's best edited using the editor UI and not directly,
; since the parameters that go here are not all obvious.
;
; Format:
; [section] ; section goes between []
; param=value ; assign values to parameters
config_version=5
[application]
config/name="godot-remote-control"
config/features=PackedStringArray("4.4", "GL Compatibility")
config/icon="res://icon.svg"
[editor_plugins]
enabled=PackedStringArray("res://addons/godot_remote_control/plugin.cfg")
[rendering]
renderer/rendering_method="gl_compatibility"
renderer/rendering_method.mobile="gl_compatibility"

13
scenes/test_scene_1.tscn Normal file
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[gd_scene format=3 uid="uid://bej8ndf3wxv21"]
[node name="Test Scene 1" type="Node2D"]
[node name="Label" type="Label" parent="."]
offset_right = 484.0
offset_bottom = 298.0
theme_override_font_sizes/font_size = 282
text = "Scene 1"
[node name="Funny Monkey" type="Node" parent="."]
[node name="Very Funny Monkey" type="Node" parent="Funny Monkey"]

9
scenes/test_scene_2.tscn Normal file
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[gd_scene format=3 uid="uid://b77npyjet0wqx"]
[node name="Test Scene 2" type="Node2D"]
[node name="Label" type="Label" parent="."]
offset_right = 484.0
offset_bottom = 298.0
theme_override_font_sizes/font_size = 282
text = "SCENE 2"