FlatRedBall
  • 🖥️Downloading FlatRedBall
  • 🏗️Building FlatRedBall From Source
    • Linking Games to FlatRedBall Engine Source
    • Linking FNA
  • ❓Need Help?
  • ✨FlatRedBall Features
  • 🎓Tutorials
    • Introduction To FlatRedBall
    • Quick Start Guide
    • Beefball - A Full FlatRedBall Tutorial Project
      • Creating a FlatRedBall Project
      • Creating an Entity
      • Creating a Screen
      • Controlling an Entity
      • Creating the Screen Collision
      • Advanced PlayerBall Controls
      • Creating the Puck Entity
      • Adding Multiple Players
      • Scoring and Restarting Rounds
      • Scoring Hud
      • Scoring Hud Logic
      • Adding Dashing
    • Platformer Tutorials
      • Platformer Basics
        • Creating an Entity
        • Controlling a Platformer Entity
        • Movement Values
        • Double Jump
      • Checkpoint and Level End
      • Climbing Ladders
      • Doors
      • GroundCollidedAgainst and Movement Values
      • Moving Platforms
      • Multiple Players
      • NPC Dialog
      • Breaking Blocks
        • New Project Setup
        • Creating Level1 Map
        • Creating the Block Entity
        • Block Removal
      • Dealing Damage
        • New Project Setup
        • Enemy Entity
        • Shooting Bullets
        • Damaging the Enemy
      • Enemy Movement
        • New Project Setup
        • Enemy Entity
        • Enemy Input Logic
        • Detecting Platform Edges
      • Ground Type and Water Movement
        • New Project Setup
        • Creating Level1 Map
        • Adding Ice and Water
        • Platformer Movement Values
      • Animation and Platformer Values
        • New Project Setup
        • Creating AnimationLayers
        • Modifying Platformer Values
      • Wall Sliding and Jumping
    • Damage Dealing
      • Setup
      • Team Index
      • Damage Events
      • IDamageArea Removal
      • Melee Damage
    • Entity Variants Using Inheritance
    • FlatRedBall.Forms
      • Getting Started with FlatRedBall.Forms
        • Setup
        • Working with Common Controls
        • Forms vs Gum in Code
      • Forms and Xbox360GamePad
      • Data Binding (BindingContext)
        • BindingContext Property
        • Binding FlatRedBall.Forms
        • Parent and Children Binding using BindingContext
        • ListBox Templates
      • Styling Forms
      • Defining New Forms Types
        • Adding New Types to FlatRedBall.Forms Library
      • Accessing Forms Events in Gum Runtimes
    • Top Down Games
      • Top Down Basics
        • Setup
        • Input Device
        • CurrentMovement
      • Enemy Movement
        • Enemy Pathfinding
        • Direct Enemy Control
      • GroundVelocity
      • Animation
      • Sorting
    • Post Processing
    • Rock Blaster - A Full FlatRedBall Tutorial Project
      • Introduction
      • Setup
      • Game Skeleton
      • Player Entity
      • Player Behavior
      • Rock Entity
      • Collision
      • Rock States
      • HUD
      • Multiple Players
      • Health
      • Health Part 2
      • Destroying Entities
      • Cleaning Up
    • Code-Only Projects (No Editor)
      • Creating a FlatRedBall Project
      • Adding a Circle
      • Loading Textures and Using Sprites
    • Code Tutorials
      • 3D Camera Setup
      • Adding FlatRedBall to a MonoGame/FNA Project
      • Adding WPF to an Existing Game
      • async and await
      • CLR Profiler
      • Collision Jitter
      • Culling
      • Customizing Cursor Visuals
        • Windows Desktop
        • windows-rt
      • Depth Buffer Z Fighting
      • Dictionaries and Enum Keys
      • FlatRedBall XNA in Windows Form
      • Improving Performance
        • CustomActivity Performance
        • Identifying Screen Creation Performance Issues
        • Rendering Performance
        • Manually Updated Objects
          • Introduction
          • Measuring Automatic Updates
          • Measuring Sprite Automatic Updates
          • Manual Particle Systems
      • Object Sorting
      • Pix
      • Rendering Sprites with Shaders
      • Tile-Based Movement
      • Velocity
    • Distribution
      • App Icon
      • Emptying bin Folder Using Probing Path
      • itch.io
      • Release Build
      • Steam
    • FlatRedBall and Velcro Physics
      • Using Velcro Physics with the FlatRedBall Editor
      • Code-Only Velcro Projects
    • FlatRedBall Editor Plugins
      • Introduction to FlatRedBall Plugins
      • Creating a Plugin Project
      • Creating a Plugin Class
      • Adding UI to FlatRedBall
      • Using MVVM
      • Creating a NamedObjectSave-Editing Plugin
      • Adding File Format Support
      • Adding Code Files to a Game Project
      • Errors
      • Exporting a Plugin
    • Additional FlatRedBall Editor Tutorials
      • How to Create a First Person Camera
      • How to Play Sounds
      • How to Share Reference Data Between Screens and Entities
    • Math Tutorials
      • Circle Collision
      • Determining required magnitude for trajectory
      • Introduction to Collision
      • Power of Two
      • Rectangle Collision
      • rotation
      • statistics
      • trigonometry
      • vector
      • matrix
      • interpolation
    • Overworld Tutorials
      • Spinning Mode 7
        • New Project Setup
        • Adding Camera Code
        • Fading In and Out
  • 🎞️Videos
  • 📐FlatRedBall Editor
    • Display Settings
    • Entities
      • BaseEntity
      • Constructor
      • ConvertToManuallyUpdated
      • CreatedByOtherEntities
      • CustomActivity
      • CustomDestroy
      • CustomInitialize
      • Destroying Entities
      • Entity Performance
      • Export Entity
      • Implements IClickable
      • Implements ICollidable
      • Implements IDamageArea
      • Implements IDrawableBatch
      • Implements IGumCollidable
      • Implements IVisible
      • Implements IWindow
        • SlideOnClick
      • Import Entity
      • Inheriting from FlatRedBall Types
      • LayerProvidedByContainer
      • MoveToLayer
      • PooledByFactory
      • Top Down Movement
        • TopDownSpeedMultiplier
      • Use Global Content
    • Events
      • ResolutionRrOrientationChanged
    • Factories
      • CreateNew
      • EntitySpawned
      • Initialize
      • SortAxis
    • Files
      • File Types
        • Animation Chain List (.achx)
        • Comma Separated Values (.csv)
          • Combining .csvs With Entities
          • CreatesDictionary
          • Cross Referencing CSVs
          • Instantiating Custom Types
          • OrderedList
          • SetCreatedClass
            • generate-data-class
          • uniformrowtype
        • Effect (.fx, .fxb)
        • Font (.fnt)
        • JSON (.json)
        • Model (.fbx)
        • MP3
        • Node Network (.nntx)
        • OpenDocument Spreadsheet (.ods)
        • ShapeCollections (.shcx)
        • SplineList (.splx)
        • Texture2D (.png)
        • Wave (.wav)
      • Accessing Files in Code
      • Adding File Objects to Managers
      • Destroy on Unload
      • File Build Tool
      • Folders
      • Global Content Files
      • IsDatabaseForLocalizing
      • IsManuallyUpdated
      • IncludeDirectoryRelativeToContainer
      • LoadedAtRuntime
      • LoadedOnlyWhenReferenced
      • Name
      • Platform Inclusions
      • Project Specific Files
      • RuntimeType
      • SourceFile
      • UseContentPipeline
      • Wildcard Files
    • FileVersion (.gluj)
    • Generated Code
    • Global Content Files
      • LoadAsynchronously
      • Reload
      • Setting Files At Runtime
    • Live Edit
      • Render Targets
    • Menu
      • Content
        • Additional Content
          • Using Runtime Types as Objects
          • creating-runtime-objects
          • runtime-object-charateristics
          • simple-line-of-text-tutorial
        • Introduction
        • pipeline-settings
      • File
        • New Project
      • Edit
        • Find File References
      • Plugins
        • Install Plugin
        • Manage Plugins
      • Project
        • View Projects
      • Settings
        • Camera Settings
        • File Associations
        • File Build Tools
        • Performance Settings
      • Update
        • Introduction
        • glue-reference-menu-frbdk
        • glue-reference-menu-libraries
    • Multi-Platform
      • Synced Projects
      • Changing Main Project Type
      • Android
        • Distribution
        • Setup
      • iOS
        • Certificates and Profiles
        • Copying Projects to Mac
        • Using Xamarin Build Host
      • Switch (Nintendo)
      • Web
    • Objects
      • Object Types
        • AxisAlignedRectangle
        • Camera
        • CameraControllingEntity
        • Circle
        • CollisionRelationship
        • Layer
          • DestinationRectangle
          • Is2D
        • Polygon
        • PositionedObjectList
        • RenderTarget2D
        • ShapeCollection
        • SoundEffectInstance
        • Sprite
        • Text
        • TileNodeNetwork
      • AddToManagers
      • AttachToCamera
      • AttachToContainer
      • CallActivity
      • Collidable Objects
      • EntireFile
      • ExposedInDerived
      • HasPublicProperty
      • IgnoresPausing
      • IncludeInIClickable
      • IncludeInICollidable
      • IsContainer
      • LayerOn
      • Map
      • SetByDerived
      • SourceFile
      • SourceType
    • Plugins
      • glue-gluevault-component-pages-rendertargetrenderer
      • glue-gluevault-component-pages-simple-command-console
      • glue-gluevault-component-pages-squid-gui-integration
      • kalldrexx-interactive-debugging-console
    • Profiling
    • Screens
      • AsyncLoadingState
      • BaseScreen
      • Constructor
      • Creating a New Screen
      • CustomDestroy
      • CustomInitialize
      • DefaultLayer
      • GameScreen
      • IsActivityFinished
      • IsLoadingScreen
      • LoadStaticContent
      • MoveToScreen
      • PauseAdjustedCurrentTime
      • Set as StartUp Screen
      • UnloadsContentManagerWhenDestroyed
    • States
      • InterpolateToState
      • InterpolateToState vs InterpolateBetween
      • State Categories
      • State Classes
      • States and Inheritance
      • Tunneling Category Variables
    • Variables
      • CreatesEvent
      • HasAccompanyingVelocityProperty
      • IsShared
      • Proper Variable Naming
      • SetByDerived
      • Type
      • Variable Order
    • Visual Studio Project (.csproj)
  • 🏃Animation Editor
    • Frame Time
    • Animation Shapes and Collision
  • Tiled
    • Tiled Basics
      • Introduction
      • Creating a GameScreen
      • Adding Collision
      • Colliding Entities Against TileShapeCollections
      • Working with Multiple Levels
      • Creating Entities from Tiles
      • Creating Entities from Object Layers
      • Accessing Tiled Properties
      • Working with Tiled Shapes
    • Tiled Files in Entities
    • TileEntityInstantiator
    • Using TiledObjects.Generated.xml
    • LayeredTileMap
      • Collisions
      • Destroy
      • FromTiledMapSave
      • Z
    • MapDrawableBatch
      • AddTile
      • CoordinateAdjustment
      • GetBottomLeftWorldCoordinateForOrderedTile
      • MergeOntoThis
      • NamedTileOrderedIndexes
      • PaintTile
      • PaintTileTextureCoordinates
      • ParallaxX
      • Paste
      • Properties
      • RemoveQuads
      • RenderingScale
      • SortAxis
    • TiledMapSave
    • TileShapeCollection
      • AddCollisionAtWorld
      • AddCollisionFrom
      • AddCollisionFromTilesWithProperty
      • AddMergedCollisionFromLayer
      • AddMergedCollisionFromTilesWithProperty
      • AdjustRepositionDirectionsOnAddAndRemove
      • CollideAgainst
      • CollideAgainstClosest
      • GetRectangleAtPosition
      • InsertCollidables
      • LastCollisionAxisAlignedRectangles
      • Rectangles
      • RemoveFromManagers
      • RemoveSurroundedCollision
  • 🟩Gum
    • Tutorials
      • Introduction and Setup
      • Screens in Gum
      • Gum Objects in Code
      • Events on Gum Objects
      • Events on Gum Objects Part 2
      • Exposed Variables
      • States
      • Adding Code to Gum Objects
    • Accessing Gum Screens in Code
    • Adding Components to Layers
    • Adding Gum Screens to FlatRedBall
    • Animations in Code
    • Components in FlatRedBall Entities
    • Converting Gum Coordinates
    • Creating Components in Code
    • GraphicalUiElement as IWindow
    • Gum Resolution
    • Gum Properties Tab
    • Gum Animations
      • How to Play Gum Screen Animations
      • Named Events
      • Setting Gum Animationchain Achx in Code
  • 🦴Spine
    • Setup
    • Atlas
    • Changing Spine Textures at Runtime
    • SpineDrawableBatch
      • Event
      • PlayAnimation
      • SetCollision
      • Skeleton
  • ⏸️Aseprite
    • AnimationChainList
  • 🏫API Documentation
    • FlatRedBall Engine
      • AI
        • LineOfSight
          • VisibilityGrid
        • Pathfinding
          • PositionedNode
          • Link
            • Cost
            • NodeLinkingTo
          • NodeNetwork
            • GetPath
            • UpdateShapes
            • Visible
          • TileNodeNetwork
            • AddAndLinkTiledNode
            • AddAndLinkTiledNodeWorld
            • OccupyTileWorld
            • SetCosts
      • Audio
        • AudioManager
          • AreSoundEffectsEnabled
          • CurrentlyPlayingSong
          • MasterSongVolume
          • MasterSoundVolume
          • Play
          • PlaySong
          • PlaySongs
          • StopSong
        • PositionedSound
        • Sound
      • Camera
        • AbsoluteRightXEdge
        • AbsoluteRightXEdgeAt
        • AddLayer
        • AddSpriteToBillboard
        • AspectRatio
        • AttachTo
        • BackgroundColor
        • CameraCullMode
        • ClearMinimumsAndMaximums
        • ClearsDepthBuffer
        • DestinationRectangle
        • DrawsShapes
        • DrawsToScreen
        • DrawsWorld
        • FarClipPlane
        • FieldOfView
        • FixAspectRatioYConstant
        • ForceUpdateDependencies
        • GetViewport
        • IsSpriteInView
        • KeepSpriteInScreen
        • Layer
        • Layers
        • Main
        • MaximumX
        • Orthogonal
        • OrthogonalHeight
        • OrthogonalWidth
        • PixelsPerUnitAt
        • Position
        • PositionRandomlyInView
        • RelativeXEdgeAt
        • RemoveLayer
        • RotationMatrix
        • SetBordersAtZ
        • SetLookAtRotationMatrix
        • SetSplitScreenViewport
        • UpdateViewProjectionMatrix
        • UpVector
        • UsePixelCoordinates
        • UsePixelCoordinates3D
        • View
      • Content
        • ContentLoadBatch
        • AnimationChain
          • AnimationChainListSave
        • ContentManager
          • AddUnloadMethod
          • FileAliases
          • IsAssetLoadedByName
          • Load
          • LoadFromGlobalIfExists
          • Multiple Content Managers
        • Math
          • Geometry
            • ShapeCollectionSave
        • Polygon
          • PolygonSave
        • Scene
          • CameraSave
          • SceneSave
        • SpriteEditorScene
          • Camera
      • Debugging
        • Debugger
          • CommandLineWrite
          • GetFullPerformanceInformation
          • TextBlue
          • WriteAutomaticallyUpdatedObjectInformation
      • Entities
        • CameraControllingEntity
        • IDamageable
        • IDamageArea
      • FlatRedBallServices
        • AddDisposable
        • AddManager
        • CornerGrabbingResize
        • Draw
        • ForceClientSizeUpdates
        • Game
        • GetManagerInformation
        • GlobalContentManager
        • GraphicsOptions
        • Initialize
        • IsLoaded
        • Load
        • Owner
        • Random
        • RenderAll
        • Unload
        • Update
        • WindowHandle
      • Graphics
        • Animation
          • AnimationChain
            • Clone
            • FrameToFrame
            • TotalLength
          • AnimationChainList
          • AnimationController
          • AnimationFrame
            • RelativeX
            • ShapeCollectionSave
            • Texture
          • IAnimationChainAnimatable
            • Animate
            • Animation and Timing
            • AnimationChains
            • AnimationSpeed
            • CurrentChainName
            • CurrentFrameIndex
            • JustChangedFrame
            • JustCycled
            • UseAnimationRelativePosition
        • BitmapFont
          • BMFC File
          • BitmapCharacterInfo
          • FNT File
          • Glyphs
          • LineHeightInPixels
          • RenderToTexture2D
        • BlendOperation
        • ColorOperation
          • Add
          • Color
          • ColorTextureAlpha
          • InterpolateColor
          • Modulate
          • Texture
        • GraphicsOptions
          • Filtering
          • IsFullScreen
          • ResolutionHeight
          • SetFullScreen
          • SetResolution
          • SizeOrOrientationChanged
          • TextureFilter
          • TextureLoadingColorKey
          • UseMultisampling
        • IColorable
          • Alpha
          • BlendOperation
          • Blue
          • ColorOperation
        • IDrawableBatch
          • Z
          • RenderState
        • IVisible
          • IgnoresParentVisibility
        • Layer
          • Layer Membership Details
          • LayerCameraSettings
          • Remove
          • RenderTarget
          • SortType
          • Sprites
          • UsePixelCoordinates
        • LayerCameraSettings
          • OrthogonalWidth
          • TopDestination
        • Particle
          • EmissionSettings
            • Drag
            • PixelSize
            • ScaleX
          • Emitter
        • PostProcessing
          • SwapChain
        • RenderBreak
        • Renderer
          • Draw
          • LastFrameRenderBreakList
          • RenderBreaksAllocatedThisFrame
        • Text
          • AdjustPositionForPixelPerfectDrawing
          • ColorOperation
          • DisplayText
          • GetWidth
          • Font
          • HorizontalAlignment
          • InsertNewLines
          • MaxWidth
          • MaxWidthBehavior
          • NewLineDistance
          • NumberOfLines
          • ScaleX
          • SetColor
          • SetPixelPerfectScale
          • VerticalAlignment
          • Width
        • TextManager
          • AddManuallyUpdated
          • AddText
          • AddToLayer
          • FilterTexts
          • RemoveText
        • Texture
          • RenderTargetSprite
          • ImageData
            • ApplyColorOperation
            • Fill
            • FromTexture2D
      • Gui
        • Cursor
          • Camera
          • ClickNoSlideThreshold
          • CustomUpdate
          • GetRay
          • IngnoreInputThisFrame
          • IsInWindow
          • IsOn
          • IsOn3d
          • PrimaryClick
          • PrimaryClickNoSlide
          • PrimaryPushTime
          • ScreenX
          • SecondaryClick
          • SetControllingGamepad
          • SetJoystickControl
          • TransformationMatrix
          • WindowOver
          • WidowPushed
          • WorldPosition
          • WorldX
          • WorldXAt
          • WorldYAt
          • XForUi
        • GuiManager
          • AddDominantWindow
          • BringsClickedWindowsToFront
          • BringToFront
          • GamepadsForUiControl
          • MakeRegularWindow
          • RemoveWindow
          • SortZAndLayerBased
          • Windows
        • IClickable
        • IInputReceiver
          • IWindow
            • CallClick
            • Enabled
          • ReceiveInput
      • Input
        • AnalogButton
        • AnalogStick
          • IsMaxPositionNormalized
        • DelegateBased1DInput
        • DelegateBased2DInput
        • DelegateBasedPressableInput
        • I1DInput
        • I2DInput
        • IMouseOver
        • InputDeviceBase
        • InputManager
          • ClearAllInput
          • InputReceiver
        • IPressableInput
        • Keyboard
          • Clear
          • ControlPositionedObject
          • Get2DInput
          • GetKey
          • GetStringTyped
          • IgnoreKeyForOneFrame
          • KeyDown
          • KeyPushed
        • Mouse
          • GrabbedPositionedObject
          • IsOn3D
          • ModifyMouseState
          • Restricting Mouse to Screen Bounds
          • SetScreenPosition
        • TouchScreen
          • LastFrameGestures
          • ReadsGestures
        • Windows
          • WindowsInputEventManager
        • Xbox360GamePad
          • ButtonDown
          • ButtonMap
          • ButtonPosition vs Button
          • ButtonPushed
          • ControlPositionedObject
          • CreateDefaultButtonMap
          • Deadzone
          • DeadzoneType
          • FakeIsConnected
          • GamepadLayout
          • IgnoreButtonForOneFrame
      • Instructions
        • DelegateInstruction
        • IInstructable
          • Call
          • Cnstructions
          • Set
        • Instruction
        • InstructionList
          • ExecuteAndRemoveOrCyclePassedInstructions
        • InstructionManager
          • Add
          • AddSafe
          • Instructions
          • MoveThrough
          • MoveTo
          • MoveToAccurate
          • ObjectsIgnoringPausing
          • PauseEngine
          • Pulse
          • RotateToAccurate
        • Reflection
          • LateBinder
          • PropertyCollection
        • MethodInstruction
        • StaticMethodInstruction
      • IO
        • Csv
          • CsvHeader
          • CsvFilemanager
            • Cells with Multiple Lines
            • Color
            • CsvDeserializelist
            • Rows with Lists
          • RuntimeCsvRepresentation
            • FromList
            • GenerateCsvString
        • FileManager
          • BinarySerialize
          • CloneObject
          • FromFileText
          • GetAllFilesInDirectory
          • GetUserFolder
          • InitializeUserFolder
          • RelativeDirectory
          • SaveEmbeddedResource
          • SaveText
          • Standardize
          • UserApplicationDataForThisApplication
          • XmlDeserialize
          • XmlSerialize
      • Localization
        • LocalizationManager
      • Managers
        • IManager
      • Math
        • IAttachableRemovable
        • AttachableList
          • FindByName
          • MakeOneWay
        • Collision
          • CollisionManager
            • Relationships
            • Update
        • Geometry
          • AxisAlignedCube
            • CollideAgainstBounce
          • AxisAlignedRectangle
            • Axis Alignment And Rotation
            • CollideAgainstMoveSoft
            • Color
            • GetRandomPositionInThis
            • KeepThisInsideOf
            • LastMoveCollisionReposition
            • Left
            • RepositionDirections
          • Capsule2D
          • Circle
            • CollideAgainst
            • CollideAgainstBounce
            • CollideAgainstMove
            • IsPointInside
            • LastCollisionTangent
            • LastMoveCollisionReposition
            • ProjectParentVelocityOnLastMoveCollisionTangent
            • Visible
            • Z
          • Colliding a List of Shapes Against Itself
          • FloatRectangle
          • ICollidable
          • IScalable
            • Scale
          • Line
            • Color
            • LastCollisionPoint
            • RelativePoint1
            • SetFromAbsoluteEndpoints
          • Point
          • Polygon
            • AbsolutePointPosition
            • Clone
            • CollideAgainstBounce
            • CollideAgainstMove and Attachments
            • CollideAgainstMove
            • Color
            • CreateEquilateral
            • CreateRectangle
            • ForceUpdateDependencies
            • IsPointInside
            • LastMoveCollisionReposition
            • OptimizeRadius
            • Points
            • Position
            • ProjectParentVelocityOnLastMoveCollisionTangent
            • ScaleBy
            • Thin Polygon Problem
            • VectorFrom
            • Visible
            • Z
          • Segment
            • ClosestPointTo
          • Shape
          • ShapeCollection
            • AttachTo
            • AxisAlignedRectangles
            • CollideAgainst
            • CollideAgainstBounceWithoutSnag
            • CollideAgainstMove
            • CollideAgainstMoveWithoutSnag
            • LastCollisionAxisAlignedRectangles
            • SortAscending
            • Visible
          • ShapeManager
            • AddToLayer
            • Remove
            • ShapeDrawingOrder
          • ShapeMerger
          • Shapes and 2D Collision
          • Sphere
        • IAttachable
          • Attachment Updates in the Engine
          • Detach
          • ParentRotationChangesPosition
          • ParentRotationChangesRotation
          • TopParent
        • IRotatable
          • RotationMatrix
        • MathFunctions
          • AbsoluteToWindow
          • AngleToAngle
          • AngleToVector
          • GetPointInCircle
          • GetPositionAfterTime
          • RegulatAngle
          • RotatePointAroundPoint
          • RoundFloat
          • RoundToInt
          • WidowToAbsolute
        • Paths
          • Path
        • PositionedObjectList
          • Add
          • AttachTo
          • Clear
          • GetFirstAfter
          • GetFirstAfterPosition
          • SortXInsertionAscending
        • Splines
          • Spline
            • GetPositionAtLengthAlongSpline
      • Performance
        • Measurement
          • Section
            • GetAndStartContextAndTime
            • Save
            • ToStringVerbose
      • PositionedObject
        • Acceleration
        • AttachTo
        • Children
        • Clone
        • Drag
        • ForceUpdatedependencies
        • ForceUpdatedependenciesDeep
        • Initialize
        • KeepTrackOfReal
        • LastPosition
        • Mirrored properties
        • ParentRotationChangesPosition
        • ParentRotationChangesRotation
        • Position
        • RelativePosition
        • RelativeRotationZ
        • RelativeVelocity
        • RemoveSelfFromListsBelongingTo
        • RotationZ
        • SetRelativeFromAbsolute
        • TimedActivity
        • TopParent
        • UpdateDependencies
        • Velocity
        • Z
      • Screens
        • Screen
          • ContentManagerName
          • CustomDestroy
          • IsActivityFinished
          • MoveToScreen
          • PauseThisScreen
        • ScreenManager
          • Activity
          • CurrentScreen
          • Start
      • Sprite
        • Alpha
        • AnimateSelf
        • AnimationChains
        • AnimationSpeed
        • Bottom
        • BottomTextureCoordinate
        • Changing a Sprite's Origin
        • ColorOperation
        • CurrentChainName
        • CurrentFrameIndex
        • IgnoreAnimationChainTextureFlip
        • Inheriting from the Sprite Class
        • JustCycled
        • LeftTextureCoordinate
        • PixelSize
        • Position
        • RightTextureCoordinate
        • SetAnimationChain
        • SetScaleXRatioToY
        • Sorting and Overlapping
        • Sprite vs Texture2d
        • Texture Coordinates
        • Texture
        • TextureAddressMode
        • TextureCoordinate
        • TextureFilter
        • TextureScale
        • TimeIntoAnimation
        • TopTextureCoordinate
        • UseAnimationRelativePosition
        • Vertices
        • VerticesForDrawing
        • Visible
      • SpriteList
      • SpriteManager
        • AddDrawableBatch
        • AddManagedInvisibleSprite
        • AddManualSprite
        • AddParticleSprite
        • AddPositionedObject
        • AddSprite
        • AddToLayer
        • AddZBufferedDrawableBatch
        • AddZBufferedSprite
        • AutomaticallyUpdatedSprites
        • Camera
        • ConvertToAutomaticallyUpdated
        • ConvertToManagedInvisible
        • ConvertToManuallyUpdated
        • ConvertToZBufferedSprite
        • DrawableBatches
        • ManagedPositionedObjects
        • ManualUpdate
        • MaxParticleCount
        • MoveToBack
        • OrderedSortType
          • Z
        • OrderedSprites
        • RemoveDrawableBatch
        • RemoveLayer
        • RemovePositionedObject
        • RemoveSprite
        • RemoveSpriteOneWay
        • SortTexturesSecondary
        • SortYSpritesSecondary
        • UnderAllDrawnLayer
      • TimeManager
        • Accumulating Time
        • CurrentScreenSecondsSince
        • CurrentTime
        • Profiling
        • SecondDifference
        • SecondsSince
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On this page
  • Introduction
  • Applying ColorOperations
  • Color Rates
  • Alpha and BlendOperation
  • AlphaRate
  • IColorable Members

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  1. API Documentation
  2. FlatRedBall Engine
  3. Graphics

IColorable

PreviousUseMultisamplingNextAlpha

Last updated 1 year ago

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Introduction

The IColorable interface defines properties for interacting with an object which can have its color dynamically modified and which can specify how it "blends" with objects behind it. Common objects which implement the IColorable interface include the and object.

Applying

can be used to change the color of a IColorable at runtime. require two pieces of information: the color specified by three values (Red, Green, and Blue) and the operation to perform with the specified color.

The default for most IColorables (like ) is .None. Unless the is changed, the Red, Green, and Blue properties will have no effect on way the IColorable is rendered. The default for is .

The Red, Green, and Blue properties provide access to the components of the color which is used to change the IColorable's color. The property specifies how to modify the color.

Color values range between 0 and 1 and are all set to 0 by default.

The exception is the object. The Text object has its Red, Green, and Blue color values set to 1 so that the text appears as white. Furthermore, the defaults to .Modulate for the object.

The following code will create five Sprites, each with a different .

 // To reduce code, add the following #using statement to your Game class
 using FlatRedBall.Graphics;

 // Replace your Initialize method with the following:
 protected override void Initialize()
 {
     FlatRedBallServices.InitializeFlatRedBall(this, this.graphics);

     float xPosition = -3;
     float spacing = 2;

     Sprite regularSprite = SpriteManager.AddSprite("redball.bmp");
     regularSprite.X = xPosition;
     // uses default ColorOperation:
     // FlatRedBall.Graphics.ColorOperation.Texture

     xPosition += spacing;

     Sprite blueAdded = SpriteManager.AddSprite("redball.bmp");
     blueAdded.X = xPosition;
     blueAdded.Blue = 1; // between 0 and 1
     blueAdded.ColorOperation = ColorOperation.Add;

     xPosition += spacing;

     Sprite plainColor = SpriteManager.AddSprite("redball.bmp");
     plainColor.X = xPosition;
     plainColor.Green = .7f;
     plainColor.Red = .8f;
     // using the ColorOperation.Color rather than
     // ColorOperation.ColorTextureAlpha will make the
     // entire Sprite the specified color even where normally
     // transparent.
     plainColor.ColorOperation = ColorOperation.ColorTextureAlpha;

     xPosition += spacing;
     Sprite inverseColor = SpriteManager.AddSprite("redball.bmp");
     inverseColor.X = xPosition;
     inverseColor.ColorOperation = ColorOperation.InverseTexture;


     base.Initialize();
 }

Color Rates

 // To reduce code, add the following #using statement to your Game class
 using FlatRedBall.Graphics;

 // Replace your Initialize method with the following:

 protected override void Initialize()
 {
     FlatRedBallServices.InitializeFlatRedBall(this, this.graphics);

     // Might as well use it since we have one created
     // for us already.
     Random random = FlatRedBallServices.Random;

     for (int i = 0; i < 80; i++)
     {
        Sprite sprite = SpriteManager.AddSprite("redball.bmp");
        sprite.ColorOperation = ColorOperation.Add;

        sprite.X = (float)random.NextDouble() * 30 - 15;
        sprite.Y = (float)random.NextDouble() * 20 - 10;

        sprite.RedRate = (float)random.NextDouble() * .7f;
        sprite.GreenRate = (float)random.NextDouble() * .7f;
        sprite.BlueRate = (float)random.NextDouble() * .7f;

        sprite.CustomBehavior += FluctuateColor;
     }
     base.Initialize();
 }

 // Add the following method at class scope
 void FluctuateColor(Sprite sprite)
 {
     if(sprite.Red <= .01f && sprite.RedRate <= 0)
     {
         sprite.RedRate *= -1;
     }
     if(sprite.Red >= .99f && sprite.RedRate >= 0)
     {
         sprite.RedRate *= -1;
     }
 
     if(sprite.Green <= .01f && sprite.GreenRate <= 0)
     {
         sprite.GreenRate *= -1;
     }
     if(sprite.Green >= .99f && sprite.GreenRate >= 0)
     {
         sprite.GreenRate *= -1;
     }
 
     if(sprite.Blue <= .01f && sprite.BlueRate <= 0)
     {
         sprite.BlueRate *= -1;
     }
     if(sprite.Blue >= .99f && sprite.BlueRate >= 0)
     {
         sprite.BlueRate *= -1;
     }
 }

Alpha and BlendOperation

Unlike the color components, modifying the Alpha value will affect the appearance of an IColorable with its default BlendOperation.

BlendOperations control how IColorables blend with objects behind them. The following code shows two rows of Sprites - the first with the default BlendOperation.Regular and the second with BlendOperation.Add;

 // To reduce code, add the following #using statement to your Game class
 // using FlatRedBall.Graphics;

 // Replace your Initialize method with the following:
 protected override void Initialize()
 {
     FlatRedBallServices.InitializeFlatRedBall(this, this.graphics);

     for (int i = 0; i < 10; i++)
     {
         Sprite sprite = SpriteManager.AddSprite("redball.bmp");
         sprite.X = -5 + i;
         sprite.Y = 4;
         sprite.Alpha = 1 - (i / 10.0f);
     }

     for (int i = 0; i < 10; i++)
     {
         Sprite sprite = SpriteManager.AddSprite("redball.bmp");
         sprite.X = -5 + i;
         sprite.BlendOperation = BlendOperation.Add;

         sprite.Alpha = 1 - (i / 10.0f);
     }

     base.Initialize();
 }

AlphaRate

The AlphaRate property modifies the Alpha property similar to the ColorRate properties. AlphaRate can be used to fade an IColorable in and out.

Most IColorables are created with an Alpha value of 1. This generally represents full opacity. AlphaRate can change this value over time. A positive AlphaRate value will increase the Alpha property over time, and a negative AlphaRate value will decrease the Alpha property over time. The formula (which is generally applied automatically for managed objects) is:

object.Alpha += object.AlphaRate * TimeManager.SecondDifference;

Therefore, a fully opaque object with an AlphaRate of -1 will disappear in 1 second. Increasing the absolute value of the AlphaRate makes the object disappear faster. That is, an AlphaRate of -2 (twice as large in absolute value terms) will make an object disappear after .5 seconds (half as long). The formula is:

AmountOfTimeToDisappearIn = - 1/AlphaRate;

Therefore, we can see that an AlphaRate value of -2 will cause an object to disappear in

-(1/(-2)) = 1/2 = .5

IColorable Members

For more information on specific , see the .

Color rates are values which change the Red, Green, and Blue values over time. The rates, just like all velocity values, indicate units changed per second. The following code creates 80 Sprites and randomly varies their colors using a .

The Alpha and BlendOperation properties are related just as the components of color and properties. The Alpha property is used to control the transparency of an IColorable.

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