Updated emconfig.bat to setup the build directory using emcmake

.github/workflows/emulator-wasm.yml

@@ -24,12 +24,7 @@ jobs:
 
     - name: Setup emscripten
       working-directory: ${{ github.workspace }}
-      run: ./emconfig.bat
-
-    - name: Configure CMake
-      working-directory: ${{ github.workspace }}
-      run: >
-        emcmake cmake -B ${{ env.OUTPUT_DIR }} -S ${{ github.workspace }}
+      run: ./emconfig.bat ${{ env.OUTPUT_DIR }}
 
     - name: Build
       # Build your program with the given configuration. Note that --config is needed because the default Windows generator is a multi-config generator (Visual Studio generator).

emconfig.bat

@@ -1,6 +1,27 @@
+:: Setup WebAssembly build
+:: Takes a single argument bing the build directory (default: build_wasm)
+::
+:: Usage: 
+:: ./emconfig.bat <build_dir>
+::
+:: Example:
+:: ./emconfig.bat build_wasm
+
+
+@echo off
+setlocal
+set BUILD_DIR=build_wasm
+
+if "%~1" NEQ "" (
+  set "BUILD_DIR=%~1"
+)
+
 pushd "%~dp0"
 
 call tools\emsdk\emsdk.bat install 3.1.10
 call tools\emsdk\emsdk.bat activate 3.1.10
 
-popd
+emcmake cmake -B %BUILD_DIR% -S .
+
+popd
+endlocal