Add Windows build script

build.ps1

@@ -0,0 +1,57 @@
+$ErrorActionPreference = "Stop"
+
+$PROJECT = "sindri"
+$COMMIT = git rev-parse --short HEAD
+$VERSION = "dev-$(Get-Date -Format 'yyyy-MM-dd')-$COMMIT"
+
+$OPTION = $args[0]
+if ($args) { $args = $args[1..($args.Length - 1)] } else { $args = @() }
+
+# ------------------------------------------
+
+# Setup compiled wgpu binary
+& (Join-Path $PSScriptRoot "scripts\wgpu-init.ps1")
+
+# ------------------------------------------
+# Game compile
+
+New-Item -ItemType Directory -Force -Path build | Out-Null
+
+# Game.dll
+odin build game/ -show-timings `
+	-collection:sindri=src `
+	-build-mode:dynamic `
+	-out:build/game_tmp.dll -microarch:native "-define:VERSION=$VERSION-debug" -debug @args
+
+# Need to use a temp file on Windows because it first writes an empty file,
+# which the engine will load before it is actually fully written.
+if (-not (Test-Path "build/game_tmp.dll")) {
+	Write-Error "error: build produced no game lib.dll"
+	exit 1
+}
+Move-Item -Force "build/game_tmp.dll" "build/game.dll"
+
+# ------------------------------------------
+# Engine compile
+
+# If the executable is already running, then don't try to build and start it.
+$proc = Get-Process -Name $PROJECT -ErrorAction SilentlyContinue
+if ($proc) {
+	Write-Output "Hot reloading..."
+	exit 0
+}
+
+if ($OPTION -eq "debug") {
+	odin build src/ -show-timings `
+		-collection:sindri=src `
+		-collection:gram=vendor/gram/src `
+		-collection:wgpu=vendor `
+		-out:build/$PROJECT.exe -microarch:native -use-separate-modules "-define:VERSION=$VERSION-debug" -debug @args
+	exit 0
+}
+
+odin build src/ -show-timings `
+	-collection:sindri=src `
+	-collection:gram=vendor/gram/src `
+	-collection:wgpu=vendor `
+	-out:build/$PROJECT.exe -microarch:native -o:speed "-define:VERSION=$VERSION" @args

scripts/wgpu-init.ps1

@@ -0,0 +1,100 @@
+$ErrorActionPreference = "Stop"
+
+$VENDOR_DIR = Join-Path $PSScriptRoot "..\vendor" | Resolve-Path
+
+# ------------------------------------------
+# Platform detection (target dir name, only used for the up-to-date check)
+
+# Windows PowerShell 5.1 doesn't define $IsWindows/$IsMacOS/$IsLinux
+if (-not (Test-Path variable:IsWindows)) { $IsWindows = $env:OS -eq "Windows_NT" }
+if (-not (Test-Path variable:IsMacOS)) { $IsMacOS = $false }
+if (-not (Test-Path variable:IsLinux)) { $IsLinux = $false }
+
+if ($IsWindows) {
+	$os = "windows"
+	$extra = "-msvc"
+} elseif ($IsMacOS) {
+	$os = "macos"
+	$extra = ""
+} elseif ($IsLinux) {
+	$os = "linux"
+	$extra = ""
+} else {
+	Write-Error "wgpu setup: unsupported OS"
+	exit 1
+}
+
+$procArch = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
+$arch = if ($procArch -eq [System.Runtime.InteropServices.Architecture]::Arm64) { "aarch64" } else { "x86_64" }
+
+$odinRoot = (odin root).Trim()
+$name = "wgpu-$os-$arch$extra-release"
+$target = Join-Path $VENDOR_DIR "wgpu\lib\$name"
+
+# ------------------------------------------
+# WGPU version detection
+
+if ($args.Count -gt 0 -and $args[0]) {
+	$WGPU_VERSION = $args[0]
+} else {
+	$odinTypes = Join-Path $odinRoot "vendor\wgpu\wgpu_native_types.odin"
+	$typesContent = Get-Content $odinTypes -Raw
+	if ($typesContent -match 'BINDINGS_VERSION_STRING :: "([^"]*)"') {
+		$WGPU_VERSION = "v" + $Matches[1]
+	}
+}
+
+if (-not $WGPU_VERSION -or $WGPU_VERSION -eq "v") {
+	Write-Error "wgpu setup: could not detect the wgpu-native version"
+	exit 1
+}
+
+# Detect the version of the vendored wgpu bindings
+$currentTypes = Join-Path $VENDOR_DIR "wgpu\wgpu_native_types.odin"
+$current = $null
+if (Test-Path $currentTypes) {
+	$cur = Get-Content $currentTypes -Raw
+	if ($cur -match 'BINDINGS_VERSION_STRING :: "([^"]*)"') {
+		$current = "v" + $Matches[1]
+	}
+}
+
+# Check if the vendored wgpu is already up to date
+if ($current -eq $WGPU_VERSION -and (Test-Path $target)) {
+	exit 0
+}
+
+# ------------------------------------------
+# Copy vendor/wgpu
+
+# Remove any stale copy
+if (Test-Path (Join-Path $VENDOR_DIR "wgpu")) {
+	Remove-Item -Recurse -Force (Join-Path $VENDOR_DIR "wgpu")
+}
+
+# Copy wgpu
+$wgpuPath = Join-Path $odinRoot "vendor\wgpu"
+Copy-Item -Recurse $wgpuPath $VENDOR_DIR
+
+# Point imports at the copied vendor wgpu package
+Get-ChildItem -Path (Join-Path $VENDOR_DIR "wgpu") -Recurse -Filter *.odin | ForEach-Object {
+	(Get-Content $_.FullName -Raw) -replace '"vendor:wgpu"', '"wgpu:wgpu"' | Set-Content $_.FullName -NoNewline
+}
+
+# ------------------------------------------
+# Download
+
+$assetBase = "https://github.com/gfx-rs/wgpu-native/releases/download/$WGPU_VERSION"
+
+if (-not (Test-Path $target)) {
+	$url = "$assetBase/$name.zip"
+	Write-Output "wgpu setup: downloading $url"
+	$tmp = Join-Path ([System.IO.Path]::GetTempPath()) ([System.Guid]::NewGuid().ToString())
+	New-Item -ItemType Directory -Path $tmp | Out-Null
+	try {
+		Invoke-WebRequest -MaximumRedirection 5 -Uri $url -OutFile (Join-Path $tmp "wgpu.zip")
+		Expand-Archive -Force -Path (Join-Path $tmp "wgpu.zip") -DestinationPath $target
+	} finally {
+		Remove-Item -Recurse -Force $tmp
+	}
+}