Add web build

Author: mphe

.github/workflows/build.yml

@@ -18,13 +18,17 @@ jobs:
   build:
     runs-on: ${{ matrix.runner }}
     name: ${{ matrix.platform }} ${{ matrix.target }} ${{ matrix.arch }} ${{ matrix.optimize }}
+
     env:
       BUILD_ID: ${{ matrix.platform }}-${{ matrix.target }}-${{ matrix.arch }}-${{ matrix.optimize }}
+      EM_VERSION: 4.0.9
+      EM_CACHE_FOLDER: "emsdk-cache"
+
     strategy:
       fail-fast: false
       matrix:
         target: [ template_debug, template_release ]
-        identifier: [ windows, linux, macos, android, android_arm64 ]
+        identifier: [ windows, linux, macos, android, android_arm64, web ]
 
         include:
           # Defaults
@@ -55,6 +59,10 @@ jobs:
             platform: android
             arch: arm64
 
+          - identifier: web
+            platform: web
+            arch: wasm32
+
     steps:
       - name: Check settings
         if: ${{ matrix.platform == '' || matrix.target == '' || matrix.runner == '' || matrix.optimize == '' || matrix.arch == ''}}
@@ -95,6 +103,20 @@ jobs:
           ndk-version: r23c
           link-to-sdk: true
 
+      - name: (Web) Set up Emscripten cache
+        if: ${{ matrix.platform == 'web' }}
+        uses: actions/cache@v4
+        with:
+          path: ${{env.EM_CACHE_FOLDER}}
+          key: ${{env.EM_VERSION}}-${{ env.BUILD_ID }}
+
+      - name: (Web) Set up Emscripten
+        if: ${{ matrix.platform == 'web' }}
+        uses: mymindstorm/setup-emsdk@v14
+        with:
+          version: ${{env.EM_VERSION}}
+          actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
+
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -113,21 +135,6 @@ jobs:
           submodules: recursive
           ref: ${{ inputs.git-ref }}
 
-#       TODO: Cache doesn't work yet. SCons rebuilds the objects even if they already exist. Could be caused by modification dates or extension_api.json.
-#             fetch-depth: 0 May be needed for cache. See: <https://github.com/actions/checkout/issues/468>.
-#      - name: Set up SCons cache
-#        uses: actions/cache@v3
-#        with:
-#          path: |
-#            ${{ github.workspace }}/.scons-cache/
-#            ${{ github.workspace }}/**/.sconsign.dblite
-#            ${{ github.workspace }}/godot-cpp/gen/
-#          key: ${{ matrix.platform }}-${{ github.ref }}-${{ github.sha }}
-#          restore-keys: |
-#            ${{ matrix.platform }}-${{ github.ref }}-${{ github.sha }}
-#            ${{ matrix.platform }}-${{ github.ref }}
-#            ${{ matrix.platform }}
-
       - name: Scons Cache
         id: scons-cache
         uses: actions/cache@v4

demo/addons/ropesim/libropesim.gdextension

@@ -15,3 +15,5 @@ android.debug.x86_64 = "res://addons/ropesim/bin/libropesim.android.template_deb
 android.release.x86_64 = "res://addons/ropesim/bin/libropesim.android.template_release.x86_64.so"
 android.debug.arm64 = "res://addons/ropesim/bin/libropesim.android.template_debug.arm64.so"
 android.release.arm64 = "res://addons/ropesim/bin/libropesim.android.template_release.arm64.so"
+web.debug.wasm32 = "res://addons/ropesim/bin/libropesim.web.template_debug.wasm32.wasm"
+web.release.wasm32 = "res://addons/ropesim/bin/libropesim.web.template_release.wasm32.wasm"