Refactor build resources

Move DUB files into /bld/d and add more instructions to README.

.gitignore

@@ -11,8 +11,6 @@
 !build.sh
 !CHANGELOG
 !configure.ac
-!dub.sdl
-!dub.selections.json
 !extension_api.json
 !LICENSE
 !Makefile.am
@@ -21,6 +19,21 @@
 
 !/bin/main.gdextension
 
+# /bld
+!/bld/
+/bld/*
+
+# /bld/src
+!/bld/src/
+/bld/src/*
+
+# /bld/src/d
+!/bld/src/d/
+/bld/src/d/*
+
+!/bld/src/d/dub.sdl
+!/bld/src/d/dub.selections.json
+
 # /docs
 !/docs/
 /docs/*
@@ -64,19 +77,17 @@
 !/src/init
 /src/init/*
 
-!/src/init/bind.d
-
 # /src/init/cpp
-!/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/*
 
-/src/init/d/bind.d
+!/src/init/d/bind.d
 
 !/src/init/d
 

README

@@ -43,6 +43,17 @@ Build
 operating systems and WebAssembly, which can be useful for transpiling and
 new platform testing.
 
+Quick Setup
+-----------
+
+    In a terminal run Godot with the "--dump-extension-api" flag; this will
+generate the "extension_api.json" required by your installation.
+    Following this, run the following command:
+
+        dub run godot-dlang:generator -- -j extension_api.json -o
+
+    Refer to documentation for more information.
+
     Project organized in conformance to the Straightforward C Project Standard 5
 (SCPS5).
 

bld/src/d/dub.sdl

@@ -7,6 +7,6 @@ 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"
+	targetName "../../obj/spruce-basin"
+	mainSourceFile "../../../src/init/bind.d"
 }

build.sh

@@ -5,7 +5,7 @@
 # Prepare to Build Project
 
 mkdir ./bld
-mkdir ./bld/out
+mkdir ./bld/obj
 
 # Run Autotools
 libtoolize

engine/bin/librtr.gdextension

@@ -1,8 +0,0 @@
-[configuration]
-entry_symbol = "librtr_extension_init"
-compatibility_minimum = "4.2"
-
-[libraries]
-windows.x86_64 = "res://../src/.libs/librtr.dll"
-macos = "res://../src/.libs/librtr.dylib"
-linux.debug.x86_64 = "res://../src/.libs/librtr.so"

engine/bin/libsb.gdextension

@@ -1,10 +1,13 @@
 [configuration]
 
-entry_symbol = "Godot-DLang"
+entry_symbol = "libsb_init"
 compatibility_minimum = "4.4"
 
 [libraries]
 
-linux.64 = "bind.so"
-darwin.64 = "bind.dylib"
-windows.64 = "bind.dll"
+linux.amd64 = "res://../bld/obj/.libs/libbind.so"
+linux.amd64 = "res://../bld/obj/.libs/libsb.so"
+darwin.amd64 = "res://../bld/obj/.libs/libbind.dylib"
+darwin.amd64 = "res://../bld/obj/.libs/libsb.dylib"
+windows.amd64 = "res://../bld/obj/.libs/libbind.dll"
+windows.amd64 = "res://../bld/obj/.libs/libsb.dll"

src/init/bind.d

@@ -1,6 +0,0 @@
-import std;
-
-void main()
-{
-    printf("Start.");
-}

src/init/d/bind.d

@@ -0,0 +1,30 @@
+import godot;
+// import godot.api.script; // for GodotScript!
+// import godot.api.register; // for GodotNativeLibrary
+// import godot.string; // for gs!
+
+import godot.node;
+
+// minimal class example with _ready method that will be invoked on creation
+class Greeter : GodotScript!Node {
+    @Property String name;
+
+    // this method is a special godot entry point when object is added to the scene
+    @Method
+    void _ready() {
+        // 'gs' is a string wrapper that converts D string to godot string
+        // usually there is helper functions that takes regular D strings and do this for you
+        print(gs!"Hello ", name);
+    }
+}
+
+// register classes, initialize and terminate D runtime, only one per plugin
+mixin GodotNativeLibrary!(
+    // this is a name prefix of the plugin to be acessible inside godot
+    // it must match the prefix in .gdextension file:
+    //     entry_symbol = "mydplugin_gdextension_entry"
+    "mydplugin",
+
+    // here goes the list of classes you would like to expose in godot
+    Greeter,
+);