Extra Decal Pre Processor

374 字

2 分钟

Extra Decal Pre Processor

2024-06-08

解决方案

PowerShell

/

Cities: Skylines 2

Prerequisite#

Cities: Skylines 2
ExtraAssetsImporter
PowerShell 7

WINDOWS EMBEDED POWERSHELL IS OUTDATED
The powershell that comes with windows is powershell 5, which doesn’t fully realize the functionality of 7!

Step#

Setup Mod toolchain in CS2, basically check it in game.
Follow the tutorial to create mods that depend on EAI, this article does not focus on these.
Build decals.

Let’s assume a scenario where you have a folder for all your HD decals (.png) and you need to create uniform decals and thumbnails based on these decals.

So you have:

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D:\lorem
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├─blahblah
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│      a.png
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│      b1.png
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│      b2.png
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│      b3.png
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│      b4.png
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│      b1.png
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│      b2.png

decal.json can be obtained from the EAI example.

Place build.ps1 and decal.json to this directory. Then:

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D:\lorem
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├─blahblah
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│      build.ps1
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│      decal.json
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│      a.png
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│      b1.png
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│      b2.png
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│      b3.png
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│      b4.png
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│      b1.png
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│      b2.png

Content in `build.ps1`#

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function GenerateIconAndMesh {
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    param(
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        $file
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    )
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    try {
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        $originalImage = [System.Drawing.Image]::FromFile($file.FullName)
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        $maxSize = [Math]::Max($originalImage.Width, $originalImage.Height)
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        $aspectRatio = $originalImage.Width / $originalImage.Height
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        $squareImage = New-Object System.Drawing.Bitmap $maxSize, $maxSize
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        $graphics = [System.Drawing.Graphics]::FromImage($squareImage)
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        $graphics.Clear([System.Drawing.Color]::Transparent)
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        $x = ($maxSize - $originalImage.Width) / 2
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        $y = ($maxSize - $originalImage.Height) / 2
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        $graphics.DrawImage($originalImage, $x, $y, $originalImage.Width, $originalImage.Height)
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        $resizedImage = New-Object System.Drawing.Bitmap 128, 128
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        $resizeGraphics = [System.Drawing.Graphics]::FromImage($resizedImage)
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        $resizeGraphics.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
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        $resizeGraphics.DrawImage($squareImage, 0, 0, 128, 128)
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        $resizeGraphics.Dispose()
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        $newFilePath = [IO.Path]::Combine($file.DirectoryName, "icon.png")
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        $resizedImage.Save($newFilePath)
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        Write-Host "Saved icon to $newFilePath"
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        $jsonPath = Join-Path $file.DirectoryName "decal.json"
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        if (Test-Path $jsonPath) {
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            $json = Get-Content $jsonPath -Raw | ConvertFrom-Json
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            $json.Vector.colossal_MeshSize.x = $aspectRatio * 1.5
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            $json.Vector.colossal_MeshSize.z = 1.5
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            $json | ConvertTo-Json -Depth 10 | Set-Content $jsonPath
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            Write-Host "Aspect Ratio = $aspectRatio"
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        }
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        else {
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            Write-Warning "decal.json not found in the directory of $($file.DirectoryName)"
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        }
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    }
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    catch {
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        Write-Warning "Error processing file $($file.FullName): $_"
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    }
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    finally {
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        # dispose
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        if ($null -ne $graphics) {
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            $graphics.Dispose()
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        }
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        if ($null -ne $squareImage) {
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            $squareImage.Dispose()
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        }
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        if ($null -ne $resizedImage) {
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            $resizedImage.Dispose()
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        }
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        if ($null -ne $originalImage) {
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            $resizedImage.Dispose()
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        }
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    }
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}
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Get-ChildItem | Foreach-Object {
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    if ($_.Extension -eq ".png") {
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        $folder = "./$($_.BaseName)"
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        mkdir $folder -ErrorAction SilentlyContinue
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        $base = "./$($_.BaseName)/_BaseColorMap.png"
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        Copy-Item $_.FullName -Destination $base
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        # $icon = "./$($_.BaseName)/icon.png"
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        # Copy-Item $_.FullName -Destination $icon
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        if (Test-Path ./decal.json) {
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            Copy-Item ./decal.json -Destination $folder
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        }
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        else {
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            Write-Warning "decal.json not found"
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        }
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        GenerateIconAndMesh(Get-Item $base)
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    }
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}