emscripten windows build scripts

win/package_web.bat

@@ -0,0 +1,14 @@
+@echo off
+
+rem build web first
+call web.bat
+
+if not %ERRORLEVEL% == 0 exit /B 1
+@rd /S /Q pkg
+mkdir pkg
+copy ..\build_web\eco2d.* pkg
+copy ..\build_web\index.html pkg
+
+IF NOT "%1"=="SKIP_DEPLOY" (
+	butler push pkg zaklaus/eco2d:html-latest
+)

win/web.bat

@@ -1,3 +1,6 @@
+rem set up VS (to get ninja generator)
+call setup_cl_generic.bat amd64
+
 rem clone emscripten sdk
 if not exist "..\emsdk" (
 	git clone https://github.com/emscripten-core/emsdk ..\emsdk