Initialize-Game.ps1
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function Initialize-Game { <# .Synopsis Initializes a game .Description Initializes the global variable $game with the game logic contains within a -GamePath. .Link Start-Game .Link Initialize-Level .Link Initialize-Sprite .Example # Initializes Nibbles2020, when run from PowerArcade's module root. Initialize-Game -GamePath .\ROM\Nibbles2020 #> [CmdletBinding(DefaultParameterSetName='GameModule')] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidGlobalVars", "", Justification="Games are Global")] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSPossibleIncorrectComparisonWithNull", "", Justification="Using Null against a list")] param( # The path to the game. This path should contain a module, and 'Game','Levels',and 'Sprites' subdirectories. [Parameter(Mandatory,Position=0,ValueFromPipelineByPropertyName,ParameterSetName='GamePath')] [Alias('ROM','FullName')] [string] $GamePath, # The game module [Parameter(Mandatory,Position=0,ValueFromPipeline,ValueFromPipelineByPropertyName,ParameterSetName='GameModule')] [Management.Automation.PSModuleInfo] $Module, # The level to the game will start. # If not provided, will use the default from the game.psd1. # If no default is found, will start at the first defined level. [Alias('Level')] [string] $StartLevel, # If set, will not clear the screen, clear the spritemap, and clear the sprite list [Alias('DoNotClear')] [switch] $NoClear ) process { if ($PSCmdlet.ParameterSetName -eq 'GamePath') { $resolvedGamePath = $ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($gamePath) if (-not $resolvedGamePath) { return } if ($resolvedGamePath -like '*.ps1') { return } $gamePathItem = Get-Item -LiteralPath $resolvedGamePath if ($resolvedGamePath -notlike '*.psd1') { if ($gamePathItem -is [IO.DirectoryInfo]) { $psd1Name = if ($gamePathItem.Name -as [Version]) { $gamePathItem.Parent.Name } else { $gamePathItem.Name } foreach ($file in $gamePathItem.GetFileSystemInfos()) { if ($file.Name -eq "$psd1Name.psd1") { $gamePathItem = $file break } } if ($gamePathItem -is [IO.DirectoryInfo]) { return } } else { return } } if ($GamePathItem.Name -notlike '*.psd1') { Write-Verbose "Skipping $GamePath because it is not a manifest file" return } $toSplat = @{} + $PSBoundParameters $toSplat.Remove('GamePath') Import-Module $gamePathItem.Fullname -Force -PassThru | Initialize-Game @toSplat return } $gameModuleDirectory = $Module | Split-Path | Get-Item if (-not $gameModuleDirectory) { return } foreach ($fsi in $GameModuleDirectory.GetFileSystemInfos()) { if ($fsi -isnot [IO.DirectoryInfo]) { continue } if ($fsi.Name -eq 'Game') { # Game-wide content $global:Game = [PSCustomObject]@{ Name = $Module.Name Version = $module.Version Root = $Module | Split-Path CurrentLevel = $null CurrentLevelName = '' Clock = '00:00:00.01' Levels = [Ordered]@{} SpriteTypes = [Ordered]@{} } foreach ($member in & $GetScriptMembers $fsi) { $game.psobject.members.add($member) } if ($game.Default) { if ($game.Default -is [Collections.IDictionary]) { foreach ($kv in $game.Default.GetEnumerator()) { $game.psobject.members.add( [PSNoteProperty]::new($kv.Key, $kv.Value), $true ) } } } if (-not $game.Width) { $Game | Add-Member NoteProperty Width $host.UI.RawUI.WindowSize.Width -Force } if (-not $game.Height) { $Game | Add-Member NoteProperty Height $host.UI.RawUI.WindowSize.Height -Force } if (-not $game.CellWidth) { $game | Add-Member NoteProperty CellWidth ([Math]::Ceiling([Math]::Sqrt($game.Width))) } if (-not $game.CellHeight) { $game | Add-Member NoteProperty CellHeight ([Math]::Ceiling([Math]::Sqrt($game.Height))) } $game.pstypenames.clear() $game.pstypenames.add('PowerArcade.Game') } } $game | Initialize-Level $game | Initialize-Sprite if ($game.Initialize.Invoke) { $game.Initialize() } if (-not $StartLevel) { $startLevel = @($game.StartLevel, $game.StartingLevel, $game.DefaultLevel -ne $null -ne '')[0] } if (-not $StartLevel) { $StartLevel = @($game.Levels.GetEnumerator())[0].Key } $global:Game = $game if ($StartLevel) { Switch-Level -Level $startLevel -NoClear:$NoClear } $game } } |