From dd8e9d429668f98e0f3537c09b241fdeadaeafbb Mon Sep 17 00:00:00 2001
From: "Aidan C. Mullen" <git@acm.contact>
Date: Wed, 5 Mar 2025 00:10:19 -0500
Subject: [PATCH] Add base files for bindings

Add base files for C++ and D that will interface with the existing C integration.
---
 .gitignore                   | 24 ++++++++++++++++++++++++
 README                       |  8 ++++++++
 build.sh                     |  5 +++++
 dub.sdl                      | 12 ++++++++++++
 dub.selections.json          |  7 +++++++
 engine/bin/libsb.gdextension | 10 ++++++++++
 engine/title.tscn            |  2 +-
 src/init/bind.d              |  6 ++++++
 src/init/cpp/bind.cpp        |  1 +
 9 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 dub.sdl
 create mode 100644 dub.selections.json
 create mode 100644 engine/bin/libsb.gdextension
 create mode 100644 src/init/bind.d
 create mode 100644 src/init/cpp/bind.cpp

diff --git a/.gitignore b/.gitignore
index 7594d75..e42dbe1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,9 @@
 !build.sh
 !CHANGELOG
 !configure.ac
+!dub.sdl
+!dub.selections.json
+!extension_api.json
 !LICENSE
 !Makefile.am
 !README
@@ -39,6 +42,7 @@
 /engine/bin/*
 
 !/engine/bin/librtr.gdextension
+!/engine/bin/libsb.gdextension
 
 # /engine/img
 !/engine/img/
@@ -56,6 +60,26 @@
 !/src/main.gdextension
 !/src/main.h
 
+# /src/init
+!/src/init
+/src/init/*
+
+!/src/init/bind.d
+
+# /src/init/cpp
+!/src/init/cpp
+/src/init/cpp/*
+
+!/src/init/cpp/bind.cpp
+
+# /src/init/d
+!/src/init/d
+/src/init/d/*
+
+/src/init/d/bind.d
+
+!/src/init/d
+
 # /res
 !/res/
 /res/*
diff --git a/README b/README
index 603071a..f7354d2 100755
--- a/README
+++ b/README
@@ -24,6 +24,10 @@ Build
         - Git
         - GNU Autotools
         - UNIX Shell
+        - GCC (with G++)
+        - LDC
+        - DUB
+        - Tubolent W2C2 (optional; testing only)
 
     1.) Install the dependencies listed above.
 
@@ -35,6 +39,10 @@ Build
 
     3.) Run "build.sh" within a UNIX shell.
 
+    Using this configuration, the project will be compatible with all major
+operating systems and WebAssembly, which can be useful for transpiling and
+new platform testing.
+
     Project organized in conformance to the Straightforward C Project Standard 5
 (SCPS5).
 
diff --git a/build.sh b/build.sh
index 70066d6..f2544b7 100644
--- a/build.sh
+++ b/build.sh
@@ -2,6 +2,11 @@
 
 # Build Script
 
+# Prepare to Build Project
+
+mkdir ./bld
+mkdir ./bld/out
+
 # Run Autotools
 libtoolize
 aclocal
diff --git a/dub.sdl b/dub.sdl
new file mode 100644
index 0000000..2e0149d
--- /dev/null
+++ b/dub.sdl
@@ -0,0 +1,12 @@
+name "spruce-basin"
+description "Source material."
+authors "AUTHORS"
+copyright "Copyright © 2025, AUTHORS"
+license "proprietary"
+dependency "godot-dlang" version="~master"
+configuration "spruce-basin" {
+	targetType "dynamicLibrary"
+	dflags "-dllimport=defaultLibsOnly" platform="windows-ldc2"
+	targetName "bld/out/spruce-basin"
+	mainSourceFile "src/init/bind.d"
+}
diff --git a/dub.selections.json b/dub.selections.json
new file mode 100644
index 0000000..8c8874a
--- /dev/null
+++ b/dub.selections.json
@@ -0,0 +1,7 @@
+{
+	"fileVersion": 1,
+	"versions": {
+		"godot-dlang": "~master",
+		"utf_bc": "0.2.1"
+	}
+}
diff --git a/engine/bin/libsb.gdextension b/engine/bin/libsb.gdextension
new file mode 100644
index 0000000..e788d61
--- /dev/null
+++ b/engine/bin/libsb.gdextension
@@ -0,0 +1,10 @@
+[configuration]
+
+entry_symbol = "Godot-DLang"
+compatibility_minimum = "4.4"
+
+[libraries]
+
+linux.64 = "bind.so"
+darwin.64 = "bind.dylib"
+windows.64 = "bind.dll"
diff --git a/engine/title.tscn b/engine/title.tscn
index 4ec2a36..f31edbf 100644
--- a/engine/title.tscn
+++ b/engine/title.tscn
@@ -106,7 +106,7 @@ text = "To-Do:
 - Use C API to implement interactive interface; this API is available via GDExtension, which has bindings available for an extended
 selection of languages, which may all interact with each other via this API.
 - Components that require speed, such as procedural generation and most core logic, should be implemented in C99/C++11; these libraries may then
-be called from a more expressive language, such as Tim Apple's Swift.
+be called from a more expressive language, such as D or a WASM object.
 - These issues will be migrated to the Forgejo instance.
 
 - Button for copyright notices in bottom-left corner."
diff --git a/src/init/bind.d b/src/init/bind.d
new file mode 100644
index 0000000..7835b7e
--- /dev/null
+++ b/src/init/bind.d
@@ -0,0 +1,6 @@
+import std;
+
+void main()
+{
+    printf("Start.");
+}
diff --git a/src/init/cpp/bind.cpp b/src/init/cpp/bind.cpp
new file mode 100644
index 0000000..8d1c8b6
--- /dev/null
+++ b/src/init/cpp/bind.cpp
@@ -0,0 +1 @@
+