Retrieve godot-sandbox through FetchContent

.github/workflows/zig-cross.yml

@@ -35,7 +35,7 @@ jobs:
       working-directory: ${{github.workspace}}
       run: |
         export PATH=$PWD/zig-linux-x86_64-0.14.0-dev.2414+ba37a4369:$PATH
-        cmake -B build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DSTRIPPED=ON -DCMAKE_TOOLCHAIN_FILE="cmake/zig-toolchain.cmake"
+        cmake -B build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DSTRIPPED=ON
         cmake --build build --parallel 8
 
     - name: Delete draft release(s)

.gitmodules

@@ -1,6 +1,3 @@
-[submodule "ext/godot-sandbox"]
-	path = ext/godot-sandbox
-	url = https://github.com/libriscv/godot-sandbox.git
 [submodule "ext/eigen"]
 	path = ext/eigen
 	url = https://gitlab.com/libeigen/eigen.git

programs/CMakeLists.txt

@@ -1,5 +1,13 @@
-# Add the sandbox program CMake API
-add_subdirectory(../ext/godot-sandbox/program/cpp/cmake cmake)
+# Fetch godot-sandbox repository (add_subdirectory is implicitly called)
+include(FetchContent)
+FetchContent_Declare(
+	godot-sandbox
+	GIT_REPOSITORY https://github.com/libriscv/godot-sandbox.git
+	GIT_TAG        main
+	GIT_PROGRESS   TRUE
+	SOURCE_SUBDIR  "program/cpp/cmake"
+)
+FetchContent_MakeAvailable(godot-sandbox)
 
 # Download the run-time generated API from the v0.1 release
 file(DOWNLOAD

programs/hello-world/main.cpp

@@ -26,6 +26,12 @@ static int meaning_of_life = 42;
 int main() {
 	print("Hello, world!");
 
+	// The entire Godot API is available
+	Sandbox sandbox = get_node<Sandbox>();
+	print(sandbox.is_binary_translated()
+		? "The current program is accelerated by binary translation."
+		: "The current program is running in interpreter mode.");
+
 	// Add public API
 	ADD_API_FUNCTION(hello_world, "String", "", "Returns the string 'Hello, world!'");
 	ADD_API_FUNCTION(print_string, "void", "String str", "Prints a string to the console");