ci: progress towards building on windows again

.github/workflows/main.yml

@@ -4,6 +4,7 @@ on:
   push:
     paths:
       - "**.zig"
+      - "dl_sdl2.ps1"
     branches:
       - main
   schedule:
@@ -29,9 +30,8 @@ jobs:
       - name: prepare-windows
         if: runner.os == 'Windows'
         run: |
-            vcpkg integrate install
-            vcpkg install sdl2:x64-windows
             git config --global core.autocrlf false
+            .\dl_sdl2.ps1
       - name: prepare-macos
         if: runner.os == 'macOS'
         run: |

dl_sdl2.ps1

@@ -0,0 +1,32 @@
+$SDL2Version = "2.30.0"
+$ArchiveFile = ".\SDL2-devel-mingw.zip"
+$Json = @"
+{
+	"x86_64-windows-gnu": {
+		"include": "SDL2\\include",
+		"libs": "SDL2\\lib",
+		"bin": "SDL2\\bin"
+	}
+}	
+"@
+
+New-Item -Force -ItemType Directory -Path .\.build_config
+Set-Location -Path .build_config -PassThru
+
+if (!(Test-Path -PathType Leaf $ArchiveFile)) {
+	Invoke-WebRequest "https://github.com/libsdl-org/SDL/releases/download/release-$SDL2Version/SDL2-devel-$SDL2Version-mingw.zip" -OutFile $ArchiveFile
+}
+
+Expand-Archive $ArchiveFile
+
+if (Test-Path -PathType Leaf .\SDL2) {
+	Remove-Item -Recurse .\SDL2
+}
+
+New-Item -Force -ItemType Directory -Path .\SDL2 
+Get-ChildItem -Path ".\SDL2-devel-mingw\SDL2-$SDL2Version\x86_64-w64-mingw32" | Move-Item -Destination .\SDL2
+
+New-Item -Force .\sdl.json -Value $Json
+
+Remove-Item -Recurse .\SDL2-devel-mingw
+Set-Location -Path .. -PassThru