Private/Bricks.ps1
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using module .\Common.psm1 class Bricks { static $kBallSpeed = 60 static $kBarSpeed = 70 static $kBarVelocityInfluenceAccelTime = 0.6 static $kExplosionDuration = 0.6 static $kExplosionPropagationDelayTime = [RandomDouble]::new(0.2, 0.3) static $foregroundColor = $null static $backgroundColor = $null static $windowWidth = 0 static $windowHeight = 0 static $characters = $null static $cellToCharacter = $null static $ball = $null static $bar = $null static $explosionsToAdd = $null static $explosions = $null static [void] Init($windowBuffer) { [Bricks]::foregroundColor = (Get-Host).UI.RawUI.ForegroundColor [Bricks]::backgroundColor = (Get-Host).UI.RawUI.BackgroundColor [Bricks]::CreateCharacters($windowBuffer) [Bricks]::CreateBall() [Bricks]::CreateBar() [Bricks]::explosionsToAdd = [System.Collections.Generic.List[PSObject]]::new() [Bricks]::explosions = [System.Collections.Generic.List[PSObject]]::new() } static [void] Term() { [Bricks]::characters = $null [Bricks]::ball = $null [Bricks]::bar = $null [Bricks]::explosions = $null [Bricks]::explosionsToAdd = $null } static [Boolean] Render([System.Management.Automation.Host.BufferCell[,]]$windowBuffer, [Double]$dt, [Double]$speed) { if (GetKeyHold ([ConsoleKey]::LeftArrow)) { [Bricks]::bar.MoveLeft() } elseif (GetKeyHold ([ConsoleKey]::RightArrow)) { [Bricks]::bar.MoveRight() } [Bricks]::bar.Update($dt) [Bricks]::ball.Update($dt * $speed) foreach ($explosion in [Bricks]::explosions) { $explosion.Update($dt * $speed) } foreach ($explosion in [Bricks]::explosionsToAdd) { [Bricks]::explosions.Add($explosion) } [Bricks]::explosionsToAdd.Clear() $isAllFinished = $true foreach ($character in [Bricks]::characters) { if (-not $character.isFinished) { $isAllFinished = $false break } } foreach ($explosion in [Bricks]::explosions) { if (-not $explosion.isFinished) { $isAllFinished = $false break } } if ($isAllFinished) { return $true } foreach ($character in [Bricks]::characters) { $character.Render($windowBuffer) } [Bricks]::ball.Render($windowBuffer) [Bricks]::bar.Render($windowBuffer) foreach ($explosion in [Bricks]::explosions) { $explosion.Render($windowBuffer) } return $false } static [void] CreateCharacters($windowBuffer) { [Bricks]::windowWidth = $windowBuffer.GetUpperBound(1) [Bricks]::windowHeight = $windowBuffer.GetUpperBound(0) [Bricks]::characters = CreateCharacters ([BricksCharacter]) $windowBuffer [Bricks]::cellToCharacter = New-Object 'Object[,]' ([Bricks]::windowWidth, [Bricks]::windowHeight) foreach ($character in [Bricks]::characters) { [Bricks]::cellToCharacter[$character.x, $character.y] = $character if ($character.IsTwoCell()) { [Bricks]::cellToCharacter[($character.x+1), $character.y] = $character } } } static [void] CreateBall() { $x = [Int]([Bricks]::windowWidth / 2) $y = [Bricks]::windowHeight - 3 [Bricks]::ball = [BricksBall]::new($x, $y) } static [void] CreateBar() { $width = 20 $x = [Int](([Bricks]::windowWidth - $width) / 2) $y = [Int]([Bricks]::windowHeight - 2) [Bricks]::bar = [BricksBar]::new($x, $y, $width) } static [void] CreateExplosion($character, $isBackgroundColorAnimation) { [Bricks]::explosionsToAdd.Add([Explosion]::new($character, $isBackgroundColorAnimation)) } static [Object] GetCharacter($x, $y) { if (($x -lt 0) -or ($x -ge ([Bricks]::windowWidth))) { return $null } if (($y -lt 0) -or ($y -ge ([Bricks]::windowHeight))) { return $null } $character = [Bricks]::cellToCharacter[$x, $y] if ($character -and $character.isFinished) { return $null } return $character } } class BricksCharacter : RenderItem { BricksCharacter($cell, $cellTrailing, $x, $y) : base($cell, $cellTrailing, $x, $y) { } [void] Update($dt) { } } class BricksBall : RenderItem { $velocity = @(0.0, 0.0) BricksBall($x, $y) : base((New-Object System.Management.Automation.Host.BufferCell( [char]0x2b24, [System.ConsoleColor]::Yellow, [Bricks]::backgroundColor, [System.Management.Automation.Host.BufferCellType]::Complete)), $null, $x, $y) { $this.SetVelocity(-1.0, -1.0) } [void] Update($dt) { # assume cell width and height ratio is 1:2 $newX = $this.x + $this.velocity[0] * $dt $newY = $this.y + $this.velocity[1] * 0.5 * $dt $this.SetNewPos($newX, $newY) } [void] SetVelocity($x, $y) { $length = [Math]::Sqrt($x * $x + $y * $y); $this.velocity[0] = $x * [Bricks]::kBallSpeed / $length $this.velocity[1] = $y * [Bricks]::kBallSpeed / $length } [void] SetNewPos($newX, $newY) { $walls = @() $walls += $this.GetWalls($this.x, $newX, 0) $walls += $this.GetWalls($this.y, $newY, 1) $walls = $walls | Sort-Object -Property t $dx = $newX - $this.x $dy = $newY - $this.y $windowSize = [Bricks]::windowWidth, [Bricks]::windowHeight $iSearchCoord = [Int]$this.x, [Int]$this.y foreach ($wall in $walls) { $componentIndex = $wall.componentIndex $iSearchCoord[$componentIndex] = $wall.cellIndex $isHit = $false $barVelocityAndInfluence = $null if (($iSearchCoord[$componentIndex] -lt 0) -or ($iSearchCoord[$componentIndex] -ge $windowSize[$componentIndex])) { $isHit = $true } else { $character = [Bricks]::GetCharacter($iSearchCoord[0], $iSearchCoord[1]) if ($character) { $character.Finish() [Bricks]::CreateExplosion($character, $true) $isHit = $true } elseif ([Bricks]::bar.IsInside($iSearchCoord[0], $iSearchCoord[1])) { $barVelocityAndInfluence = [Bricks]::bar.GetBallVelocityAndInfluence() $isHit = $true } } if ($isHit) { $newVelocity = $this.velocity.Clone() $newVelocity[$componentIndex] = -$newVelocity[$componentIndex] if ($barVelocityAndInfluence) { $barVelocityX = $barVelocityAndInfluence[0] $barVelocityY = $barVelocityAndInfluence[1] $barInfluence = $barVelocityAndInfluence[2] $barVelocityY *= [Math]::Sign($newVelocity[1]) $newVelocity[0] = Lerp $newVelocity[0] $barVelocityX $barInfluence $newVelocity[1] = Lerp $newVelocity[1] $barVelocityY $barInfluence } $this.SetVelocity($newVelocity[0], $newVelocity[1]) $this.x = Limit ($this.x + $dx * $wall.t) 0 ([Bricks]::windowWidth-1) $this.y = Limit ($this.y + $dy * $wall.t) 0 ([Bricks]::windowHeight-1) return } } $this.x = $newX $this.y = $newY } [Object[]] GetWalls($currentCoord, $newCoord, $componentIndex) { $walls = @() $min = [Math]::Min($currentCoord, $newCoord) $max = [Math]::Max($currentCoord, $newCoord) $d = $newCoord - $currentCoord $sign = [Math]::Sign($d) $wallCoords = @(([Math]::Floor($min))..([Math]::Floor($max))) if ($wallCoords.Count -gt 1) { $wallCoords = $wallCoords[1..($wallCoords.Count-1)] foreach ($wallCoord in $wallCoords) { $t = ($wallCoord - $currentCoord) / $d $walls += @{componentIndex = $componentIndex; t = $t; cellIndex = ($wallCoord + $sign)} } } return $walls } } class BricksBar { $x = 0 $y = 0 $width = 0 $renderItems = $null $nextMoveDirection = 0 $prevMoveDirection = 0 $velocityInfluence = 0.0 BricksBar($x, $y, $width) { $this.x = $x $this.y = $y $this.width = $width $color = [System.ConsoleColor]::Blue $firstCell = New-Object System.Management.Automation.Host.BufferCell( "(", $color, [Bricks]::backgroundColor, [System.Management.Automation.Host.BufferCellType]::Complete) $lastCell = New-Object System.Management.Automation.Host.BufferCell( ")", $color, [Bricks]::backgroundColor, [System.Management.Automation.Host.BufferCellType]::Complete) $middleCell = New-Object System.Management.Automation.Host.BufferCell( " ", [Bricks]::foregroundColor, $color, [System.Management.Automation.Host.BufferCellType]::Complete) $this.renderItems = New-Object System.Collections.ArrayList $this.renderItems.Add([RenderItem]::new($firstCell, $null, $x, $y)) | Out-Null for ($i = 1; $i -lt ($width-1); ++$i) { $this.renderItems.Add([RenderItem]::new($middleCell, $null, ($x + $i), $y)) | Out-Null } $this.renderItems.Add([RenderItem]::new($lastCell, $null, $x + ($width-1), $y)) | Out-Null } [void] Render($windowBuffer) { foreach ($item in $this.renderItems) { $item.Render($windowBuffer) } } [void] Update($dt) { if ($this.nextMoveDirection -eq 0) { $this.velocityInfluence = 0.0 } elseif (($this.prevMoveDirection * $this.nextMoveDirection) -lt 0) { # Moved in opposite direction $this.velocityInfluence = 0.0 } else { $this.velocityInfluence += $dt / [Bricks]::kBarVelocityInfluenceAccelTime $this.velocityInfluence = [Math]::Min($this.velocityInfluence, 1.0) } $this.x += $this.nextMoveDirection * [Bricks]::kBarSpeed * $dt $this.prevMoveDirection = $this.nextMoveDirection $this.nextMoveDirection = 0 $maxX = [Bricks]::windowWidth - $this.width - 1 if (($this.x -lt 0) -or ($this.x -gt $maxX)) { $this.velocityInfluence = 0.0 } $this.x = [Math]::Max($this.x, 0) $this.x = [Math]::Min($this.x, $maxX) for ($i = 0; $i -lt $this.width; ++$i) { $this.renderItems[$i].x = $this.x + $i } } [void] MoveLeft() { $this.nextMoveDirection = -1 } [void] MoveRight() { $this.nextMoveDirection = 1 } [Boolean] IsInside($x, $y) { if ($y -ne $this.y) { return $false } if ($x -lt $this.x) { return $false } if ($x -ge ($this.x + $this.width)) { return $false } return $true } [Double[]] GetBallVelocityAndInfluence() { $velocityX = [Math]::Sign($this.prevMoveDirection) * [Bricks]::kBallSpeed $velocityY = 0.5 * [Bricks]::kBallSpeed return $velocityX, $velocityY, $this.velocityInfluence } } class Explosion : RenderItem { $timer = 0.0 $colorAnimation = $null $isBackgroundColorAnimation = $true $propagationDelayTime = 0.0 static $kColors = @( [System.ConsoleColor]::Yellow, [System.ConsoleColor]::Yellow, [System.ConsoleColor]::Blue, [System.ConsoleColor]::DarkBlue ) Explosion($character, $isBackgroundColorAnimation) : base( $character.cells[0], $character.cells[1], $character.x, $character.y) { $this.colorAnimation = [LinearAnimation]::new([Explosion]::kColors, [Bricks]::kExplosionDuration) $this.isBackgroundColorAnimation = $isBackgroundColorAnimation $this.propagationDelayTime = [Bricks]::kExplosionPropagationDelayTime.Get() } [void] Update($dt) { if ($this.isFinished) { return } $this.colorAnimation.Update($dt) $color = $this.colorAnimation.GetValue() if ($this.isBackgroundColorAnimation) { $this.SetCell($null, $null, $color) } else { $this.SetCell($null, $color, $null) } if ($this.colorAnimation.GetRatio() -gt $this.propagationDelayTime) { foreach ($offsetX in @(-1..1)) { foreach ($offsetY in @(-1..1)) { $character = [Bricks]::GetCharacter($this.x + $offsetX, $this.y + $offsetY) if ($character) { $character.Finish() [Bricks]::CreateExplosion($character, $false) } } } } if ($this.colorAnimation.IsFinished()) { $this.Finish() } } } |