Clone godot-cpp if not found during scons build

README.md

@@ -93,13 +93,19 @@ LimboAI can be used as either a C++ module or as a GDExtension shared library. G
 
 ### Compiling from source
 
->**🛈 For GDExtension:** Refer to comments in [setup_gdextension.sh](./gdextension/setup_gdextension.sh) file.
-
 - Download the Godot Engine source code and put this module source into the `modules/limboai` directory.
 - Consult the Godot Engine documentation for instructions on [how to build from source code](https://docs.godotengine.org/en/stable/contributing/development/compiling/index.html).
 - If you plan to export a game utilizing the LimboAI module, you'll also need to build export templates.
 - To execute unit tests, compile the engine with `tests=yes` and run it with `--test --tc="*[LimboAI]*"`.
 
+#### For GDExtension
+
+- You'll need SCons build tool and a C++ compiler. See also [Compiling](https://docs.godotengine.org/en/stable/contributing/development/compiling/index.html).
+- Run `scons target=editor` to build the plugin library for your current platform.
+  - SCons will automatically clone the godot-cpp/ repository if it doesn't already exist in the `limboai/godot-cpp` directory.
+  - By default, built targets are placed in the demo project: `demo/addons/limboai/bin/`
+- Check `scons -h` for other options and targets.
+
 ## Using the plugin
 
 - [Online Documentation](https://limboai.readthedocs.io/en/latest/index.html)

SConstruct

@@ -1,15 +1,32 @@
 #!/usr/bin/env python
+"""
+This is SConstruct file for building GDExtension variant using SCons build system.
+For module variant, see SCsub file.
+
+Use --project=DIR to customize output path for built targets.
+ - Built targets are placed into "DIR/addons/limboai/bin".
+ - For example: scons --project="../my_project"
+   - built targets will be placed into "../my_project/addons/limboai/bin".
+ - If not specified, built targets are put into the demo/ project.
+"""
+
 import os
 import sys
+import subprocess
+from limboai_version import generate_module_version_header, godot_cpp_ref
 
-# This is SConstruct file for building GDExtension variant using SCons build system.
-# For module variant, see SCsub file.
-
-# Use --project=DIR to customize output path for built targets.
-# - Built targets are placed into "DIR/addons/limboai/bin".
-# - For example: scons --project="../my_project"
-#   - built targets will be placed into "../my_project/addons/limboai/bin".
-# - If not specified, built targets are put into the demo/ project.
+# Check if godot-cpp/ exists
+if not os.path.exists("godot-cpp"):
+    print("Directory godot-cpp/ not found. Cloning repository...")
+    result = subprocess.run(
+        ["git", "clone", "-b", godot_cpp_ref, "https://github.com/godotengine/godot-cpp.git"],
+        check=True,
+        # capture_output=True
+    )
+    if result.returncode != 0:
+        print("Error: Cloning godot-cpp repository failed.")
+        Exit(1)
+    print("Finished cloning godot-cpp repository.")
 
 AddOption(
     "--project",
@@ -32,7 +49,7 @@ Help(help_text)
 project_dir = GetOption("project")
 if not os.path.isdir(project_dir):
     print("Project directory not found: " + project_dir)
-    Exit(1)
+    Exit(2)
 
 # Parse LimboAI-specific variables.
 vars = Variables()
@@ -63,8 +80,6 @@ for o in vars.options:
 env = SConscript("godot-cpp/SConstruct")
 
 # Generate version header.
-from limboai_version import generate_module_version_header
-
 print("Generating LimboAI version header...")
 generate_module_version_header()
 

gdextension/setup_gdextension.sh

@@ -1,121 +0,0 @@
-#!/bin/bash
-
-## This script sets up limboai project for development with GDExtension.
-## It adds missing files to the demo project for development with GDExtension, and downloads godot-cpp.
-## Tested only on Unix-likes. You can perform similar steps manually, if you are on Windows. Check Overview below.
-##
-## Instructions:
-## 1) Clone the limboai repository:
-##    git clone https://github.com/limbonaut/limboai
-## 2) From the limboai root directory, run:
-##    bash ./gdextension/setup_gdextension.sh
-##
-## Overview:
-##   limboai/ -- LimboAI repository after you clone it - call this script from here.
-##   limboai/godot-cpp/ -- git repo that will be cloned by this script, unless already exists.
-##   limboai/demo/addons/limboai/limboai.gdextension -- symbolic link created (leads to limboai/gdextension/limboai.gdextension).
-##   limboai/demo/addons/limboai/icons/ -- symbolic link created (leads to limboai/icons/).
-##
-##   Note: Script creates symbolic links unless --copy-all is set, in which case it copies the files.
-##
-## Dependencies: bash, git, python3, trash (optional).
-
-# Script Settings
-GODOT_CPP_VERSION=4.2
-PYTHON=python
-
-# Colors
-HIGHLIGHT_COLOR='\033[1;36m' # Light Cyan
-NC='\033[0m' # No Color
-ERROR_COLOR="\033[0;31m"  # Red
-
-usage() { echo "Usage: $0 [--copy-all] [--trash-old]"; }
-
-msg () {  echo -e "$@"; }
-highlight() { echo -e "${HIGHLIGHT_COLOR}$@${NC}"; }
-error () { echo -e "${ERROR_COLOR}$@${NC}" >&2; }
-
-if [ ! -d "${PWD}/demo/" ]; then
-    error Aborting: \"demo\" subdirectory is not found.
-    msg Tip: Run this script from the limboai root directory.
-    msg Command: bash ./gdextension/setup_gdextension.sh
-    exit 1
-fi
-
-# Interrupt execution and exit on Ctrl-C
-trap exit SIGINT
-
-set -e
-
-copy_all=0
-trash_old=0
-
-# Parsing arguments
-for i in "$@"
-do
-    case "${i}" in
-	--copy-all)
-	    copy_demo=1
-	    copy_all=1
-	    shift
-	    ;;
-    --trash-old)
-        trash_old=1
-        shift
-        ;;
-	*)
-	    usage
-        exit 1
-	    ;;
-    esac
-done
-
-highlight Setup started.
-
-${PYTHON} gdextension/update_icon_entries.py --silent
-highlight -- Icon declarations updated.
-
-transfer="ln -s"
-transfer_word="Linked"
-if [ ${copy_all} == 1 ]; then
-    transfer="cp -R"
-    transfer_word="Copied"
-fi
-
-if [ ${trash_old} == 1 ]; then
-    if ! command -v trash &> /dev/null; then
-        error trash command not available. Aborting.
-        exit 1
-    fi
-    trash demo/addons/limboai || /bin/true
-    highlight -- Trashed old setup.
-fi
-
-if [ ! -d "${PWD}/godot-cpp/" ]; then
-    highlight -- Cloning godot-cpp...
-    git clone -b ${GODOT_CPP_VERSION} https://github.com/godotengine/godot-cpp
-    highlight -- Finished cloning godot-cpp.
-else
-    highlight -- Skipping \"godot-cpp\". Directory already exists!
-fi
-
-if [ ! -e "${PWD}/demo/addons/limboai/bin/limboai.gdextension" ]; then
-    mkdir -p ./demo/addons/limboai/bin/
-    cd ./demo/addons/limboai/bin/
-    ${transfer} ../../../../gdextension/limboai.gdextension limboai.gdextension
-    cd -
-    highlight -- ${transfer_word} limboai.gdextension.
-else
-    highlight -- Skipping limboai.gdextension. File already exists!
-fi
-
-if [ ! -e "${PWD}/demo/addons/limboai/icons/" ]; then
-    cd ./demo/addons/limboai/
-    ${transfer} ../../../icons icons
-    cd -
-    highlight -- ${transfer_word} icons.
-else
-    highlight -- Skipping icons. File already exists!
-fi
-
-highlight Setup complete.

limboai_version.py

@@ -5,6 +5,7 @@ minor = 2
 patch = 0
 status = "dev"
 doc_branch = "latest"
+godot_cpp_ref = "master"
 
 # Code that generates version header