Started a Cobor Virtual Machine implementation for running the code.

cobor_vm_extension/godot-cpp/tools/web.py

@@ -0,0 +1,59 @@
+import common_compiler_flags
+from SCons.Util import WhereIs
+
+
+def exists(env):
+    return WhereIs("emcc") is not None
+
+
+def generate(env):
+    if env["arch"] not in ("wasm32"):
+        print("Only wasm32 supported on web. Exiting.")
+        env.Exit(1)
+
+    # Emscripten toolchain
+    env["CC"] = "emcc"
+    env["CXX"] = "em++"
+    env["AR"] = "emar"
+    env["RANLIB"] = "emranlib"
+
+    # Use TempFileMunge since some AR invocations are too long for cmd.exe.
+    # Use POSIX-style paths, required with TempFileMunge.
+    env["ARCOM_POSIX"] = env["ARCOM"].replace("$TARGET", "$TARGET.posix").replace("$SOURCES", "$SOURCES.posix")
+    env["ARCOM"] = "${TEMPFILE(ARCOM_POSIX)}"
+
+    # All intermediate files are just object files.
+    env["OBJSUFFIX"] = ".o"
+    env["SHOBJSUFFIX"] = ".o"
+
+    # Static libraries clang-style.
+    env["LIBPREFIX"] = "lib"
+    env["LIBSUFFIX"] = ".a"
+
+    # Shared library as wasm.
+    env["SHLIBSUFFIX"] = ".wasm"
+
+    # Thread support (via SharedArrayBuffer).
+    if env["threads"]:
+        env.Append(CCFLAGS=["-sUSE_PTHREADS=1"])
+        env.Append(LINKFLAGS=["-sUSE_PTHREADS=1"])
+
+    # Build as side module (shared library).
+    env.Append(CCFLAGS=["-sSIDE_MODULE=1"])
+    env.Append(LINKFLAGS=["-sSIDE_MODULE=1"])
+
+    # Enable WebAssembly BigInt <-> i64 conversion.
+    # This must match the flag used to build Godot (true in official builds since 4.3)
+    env.Append(LINKFLAGS=["-sWASM_BIGINT"])
+
+    # Force wasm longjmp mode.
+    env.Append(CCFLAGS=["-sSUPPORT_LONGJMP='wasm'"])
+    env.Append(LINKFLAGS=["-sSUPPORT_LONGJMP='wasm'"])
+
+    env.Append(CPPDEFINES=["WEB_ENABLED", "UNIX_ENABLED"])
+
+    # Refer to https://github.com/godotengine/godot/blob/master/platform/web/detect.py
+    if env["lto"] == "auto":
+        env["lto"] = "full"
+
+    common_compiler_flags.generate(env)