Gondwana Game Engine Development (master) - 2.6.1
Gondwana is a cross-platform 2.5D game and rendering engine written in C#/.NET 8. It provides fine-grained control over rendering, timing, and scene composition, with built-in support for parallax, z-ordering, pixel overhang, collision detection, and particle effects. Gondwana targets desktop and web platforms using SkiaSharp for graphics and pluggable audio backends for desktop and browser targets.
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Gondwana.Widgets.Dialogs.ConversationBox Class Referencesealed

Provides an NPC-style conversation panel with speaker, wrapped body text, and pointer or keyboard advance semantics. More...

Inheritance diagram for Gondwana.Widgets.Dialogs.ConversationBox:
Gondwana.Widgets.WidgetBase Gondwana.Drawing.Direct.DirectComposite Gondwana.Drawing.Direct.IDirectCompositeChild Gondwana.Drawing.Direct.IDirectCompositeContainer Gondwana.Drawing.Direct.IDirectDrawable Gondwana.Physics.Movement.IMovable Gondwana.Drawing.IDrawable

Public Member Functions

 ConversationBox (RenderSurfaceHostBase renderSurfaceHost, View view, Rectangle bounds, string speaker, string text, string? nickname=null)
 Creates a view-level conversation box.
 ConversationBox (RenderSurfaceHostBase renderSurfaceHost, SceneLayer sceneLayer, Rectangle bounds, string speaker, string text, string? nickname=null)
 Creates a scene-layer conversation box.
ConversationBox SetConversation (string speaker, string text)
 Changes the speaker and body text together.
ConversationBox SetSpeaker (string speaker)
 Changes the speaker name.
ConversationBox SetText (string text)
 Changes the conversation body text.
ConversationBox ShowContinueIndicator (bool visible=true)
 Shows or hides the continue indicator.
ConversationBox SetTextColors (SKColor speakerColor, SKColor bodyColor)
 Sets the speaker and body text colors.
ConversationBox SetPanelColors (Color fill, Color border)
 Sets the panel fill and border colors.
ConversationBox SetConversationZOrder (int zOrder)
 Sets the base Z-order used by the conversation visuals.
void Advance ()
 Programmatically requests the next conversation step.
Public Member Functions inherited from Gondwana.Widgets.WidgetBase
virtual bool HitTest (View view, Point screenPositionPx)
 Determines whether the widget can be hit at the specified screen position within the specified view.
virtual bool HitTest (Point screenPositionPx)
 Determines whether the widget can be hit at the specified screen position.
WidgetBase Show ()
 Shows the widget and registers it for input routing.
WidgetBase Hide ()
 Hides the widget and releases any routed input state.
WidgetBase Activate ()
 Activates the widget and brings it to the front of the input order.
WidgetBase Cancel ()
 Cancels the widget.
Public Member Functions inherited from Gondwana.Drawing.Direct.DirectComposite
 DirectComposite (RenderSurfaceHostBase renderSurfaceHost, DirectDrawingMode mode, PointF anchor=default, string? nickname=null)
 Initializes a new instance of the DirectComposite class.
Vector2 GetPosition ()
 Gets the current composite anchor.
void SetPosition (Vector2 position)
 Sets the composite anchor and repositions all children from their stored offsets.
DirectComposite SetPosition (float x, float y)
 Sets the composite anchor and repositions all children from their stored offsets.
virtual DirectComposite Add (IDirectCompositeChild child, bool keepCurrentOffset=true, Vector2? explicitLocalOffsetPx=null)
 Adds a composite-compatible direct drawable as a child.
virtual DirectComposite Remove (IDirectCompositeChild child)
 Removes a child without disposing it.
virtual DirectComposite Clear ()
 Removes every child without disposing them.
DirectComposite SetLocalOffset (IDirectCompositeChild child, Vector2 newLocalOffsetPx)
 Changes one child's local offset and reapplies its position.
DirectComposite SetZOrder (int zOrder)
 Applies one Z-order to every descendant.
DirectComposite SetOpacity (float opacity)
 Applies one opacity to every descendant.
DirectComposite SetIsVisible (bool visible)
 Applies one visibility value to every descendant.
DirectComposite FadeTo (float targetOpacity, float durationSec)
 Fades every descendant to the requested opacity.
DirectComposite FadeIn (float durationSec)
 Fades every descendant to full opacity.
DirectComposite FadeOut (float durationSec)
 Fades every descendant to zero opacity.
RectangleF GetDrawLocationScreen (View view)
 Gets the union of all visible descendants as projected through a view.
void Draw (BackbufferBase backbuffer, RectangleF destRectScreen)
 Performs no direct rendering because descendants render independently.
virtual void Update (long tick)
 Advances composite movement.
virtual void Dispose ()
 Disposes the composite and every child it owns.

Protected Member Functions

override void ProcessShown ()
 Performs processing when the widget is shown before notification callbacks are invoked.
override void OnPointerClick (WidgetPointerEventArgs args)
 Called when a pointer click is dispatched to the widget.
Parameters
argsThe pointer event data.

override void OnKeyboardInput (WidgetKeyboardEventArgs args)
 Called when keyboard input is routed to the widget.
Parameters
argsThe keyboard event data.

Protected Member Functions inherited from Gondwana.Widgets.WidgetBase
 WidgetBase (RenderSurfaceHostBase renderSurfaceHost, DirectDrawingMode mode, PointF anchor=default, string? nickname=null)
 Initializes a new instance of the WidgetBase class.
virtual void ProcessHidden ()
 Performs processing when the widget is hidden before notification callbacks are invoked.
virtual void ProcessActivated ()
 Performs processing when the widget is activated before notification callbacks are invoked.
virtual void ProcessCancelled ()
 Performs processing when the widget is cancelled before notification callbacks are invoked.
virtual void ProcessPointerEnter (WidgetPointerEventArgs args)
 Performs processing when a pointer enters the widget before notification callbacks are invoked.
virtual void ProcessPointerLeave (WidgetPointerEventArgs args)
 Performs processing when a pointer leaves the widget before notification callbacks are invoked.
virtual void ProcessPointerDown (WidgetPointerEventArgs args)
 Performs processing when a pointer press begins on the widget before notification callbacks are invoked.
virtual void ProcessPointerMove (WidgetPointerEventArgs args)
 Performs processing when pointer movement is routed to the widget before notification callbacks are invoked.
virtual void ProcessPointerUp (WidgetPointerEventArgs args)
 Performs processing when a pointer press is released for the widget before notification callbacks are invoked.
virtual void ProcessFocusGained ()
 Performs processing when the widget gains focus before notification callbacks are invoked.
virtual void ProcessFocusLost ()
 Performs processing when the widget loses focus before notification callbacks are invoked.
virtual void ProcessKeyboardInput (WidgetKeyboardEventArgs args)
 Performs processing when keyboard input is routed to the widget before notification callbacks are invoked.
virtual bool ShouldDispatchPointerClick (WidgetPointerEventArgs args)
 Determines whether a pointer-click event should be dispatched for the specified pointer event data.
virtual void OnShown ()
 Called when the widget is shown.
virtual void OnHidden ()
 Called when the widget is hidden.
virtual void OnActivated ()
 Called when the widget is activated.
virtual void OnCancelled ()
 Called when the widget is cancelled.
virtual void OnPointerEnter (WidgetPointerEventArgs args)
 Called when a pointer enters the widget bounds.
virtual void OnPointerLeave (WidgetPointerEventArgs args)
 Called when a pointer leaves the widget bounds.
virtual void OnPointerDown (WidgetPointerEventArgs args)
 Called when a pointer press begins on the widget.
virtual void OnPointerMove (WidgetPointerEventArgs args)
 Called when pointer movement is routed to the widget.
virtual void OnPointerUp (WidgetPointerEventArgs args)
 Called when a pointer press is released for the widget.
virtual void OnMouseWheel (WidgetMouseWheelEventArgs args)
 Called when mouse-wheel input is routed to the widget.
virtual void OnFocusGained ()
 Called when the widget gains focus.
virtual void OnFocusLost ()
 Called when the widget loses focus.
Protected Member Functions inherited from Gondwana.Drawing.Direct.DirectComposite
virtual void OnChildAdded (IDirectCompositeChild child)
 Called after a child has been successfully added.
virtual void OnChildRemoved (IDirectCompositeChild child)
 Called after a child has been removed from the composite.

Properties

DirectRectangle Panel [get]
 Gets the panel background.
TextBlock SpeakerText [get]
 Gets the speaker-name text block.
TextBlock BodyText [get]
 Gets the conversation body text block.
TextBlock ContinueIndicator [get]
 Gets the small visual indicating that the conversation can advance.
string Speaker [get]
 Gets the current speaker name.
string Text [get]
 Gets the current conversation text.
Rectangle Bounds [get]
 Gets the conversation bounds in its native coordinate space.
int PrimaryAdvanceKey = 13 [get, set]
 Gets or sets the primary key used to request the next conversation step. Defaults to Enter (13).
int SecondaryAdvanceKey = 32 [get, set]
 Gets or sets the secondary key used to request the next conversation step. Defaults to Space (32).
Properties inherited from Gondwana.Widgets.WidgetBase
bool IsInputEnabled [get, set]
 Gets or sets a value indicating whether the widget can participate in input routing.
bool IsPointerInputEnabled [get, set]
 Gets or sets a value indicating whether the widget can receive pointer input.
bool IsKeyboardInputEnabled [get, set]
 Gets or sets a value indicating whether the widget can receive keyboard input.
bool CanReceiveFocus [get, set]
 Gets or sets a value indicating whether the widget can receive keyboard focus.
bool IsFocused [get, set]
 Gets a value indicating whether the widget currently has keyboard focus.
Properties inherited from Gondwana.Drawing.Direct.DirectComposite
Guid Id = Guid.NewGuid() [get]
 Gets the unique identifier of the composite.
string? Nickname [get]
 Gets the optional diagnostic nickname of the composite.
RenderSurfaceHostBase RenderSurfaceHost [get]
 Gets the render surface host shared by the composite and its children.
DirectDrawingMode Mode [get]
 Gets the coordinate mode shared by the composite and its children.
SceneLayer? SceneLayer [get]
 Gets the scene layer shared by all children in scene-layer mode.
View? View [get]
 Gets the view shared by all children in view mode.
ReadOnlyCollection< IDirectCompositeChild > Children [get]
 Gets the children owned by the composite.
MovementController Movement [get]
 Gets the movement controller used to move the composite anchor.
MovementSpace PositionSpace [get]
 Gets the coordinate space used by the movement controller.
bool Visible [get, set]
 Gets or sets the visibility of all descendants.
int ZOrder [get]
 Gets the composite Z-order.
Rectangle ScreenBounds [get]
 Gets the union of all visible descendants' screen-space bounds.
Rectangle WorldBounds [get]
 Gets the union of all visible descendants' world-space bounds.

Events

Action? AdvanceRequested
 Occurs when the player requests the next line or conversation step.
Events inherited from Gondwana.Widgets.WidgetBase
Action? Shown
 Occurs when the widget is shown.
Action? Hidden
 Occurs when the widget is hidden.
Action? Activated
 Occurs when the widget is activated.
Action? Cancelled
 Occurs when the widget is cancelled.
Action< WidgetPointerEventArgs >? PointerEnter
 Occurs when a pointer enters the widget bounds.
Action< WidgetPointerEventArgs >? PointerLeave
 Occurs when a pointer leaves the widget bounds.
Action< WidgetPointerEventArgs >? PointerDown
 Occurs when a pointer button or touch press begins on the widget.
Action< WidgetPointerEventArgs >? PointerMove
 Occurs when a pointer moves while routed to the widget.
Action< WidgetPointerEventArgs >? PointerUp
 Occurs when a pointer button or touch press is released for the widget.
Action< WidgetPointerEventArgs >? PointerClick
 Occurs when a pointer press and release completes as a click on the widget.
Action< WidgetMouseWheelEventArgs >? MouseWheel
 Occurs when mouse-wheel input is routed to the widget while the pointer is over it.
Action? FocusGained
 Occurs when the widget gains keyboard focus.
Action? FocusLost
 Occurs when the widget loses keyboard focus.
Action< WidgetKeyboardEventArgs >? KeyboardInput
 Occurs when keyboard input is routed to the widget.
Events inherited from Gondwana.Drawing.Direct.DirectComposite
EventHandler< IDirectDrawable >? Disposing
 Occurs when the composite is being disposed.
Events inherited from Gondwana.Drawing.Direct.IDirectDrawable
EventHandler< IDirectDrawable >? Disposing
 Occurs when the object is being disposed.

Detailed Description

Provides an NPC-style conversation panel with speaker, wrapped body text, and pointer or keyboard advance semantics.

Definition at line 15 of file ConversationBox.cs.

Constructor & Destructor Documentation

◆ ConversationBox() [1/2]

Gondwana.Widgets.Dialogs.ConversationBox.ConversationBox ( RenderSurfaceHostBase renderSurfaceHost,
View view,
Rectangle bounds,
string speaker,
string text,
string? nickname = null )

Creates a view-level conversation box.

Parameters
renderSurfaceHostThe render-surface host that owns the drawing.
viewThe view used for presentation and coordinate conversion.
boundsThe widget bounds in view-local pixels.
speakerThe speaker.
textThe text to display.
nicknameAn optional name used to identify the object.

Definition at line 40 of file ConversationBox.cs.

◆ ConversationBox() [2/2]

Gondwana.Widgets.Dialogs.ConversationBox.ConversationBox ( RenderSurfaceHostBase renderSurfaceHost,
SceneLayer sceneLayer,
Rectangle bounds,
string speaker,
string text,
string? nickname = null )

Creates a scene-layer conversation box.

Parameters
renderSurfaceHostThe render-surface host that owns the drawing.
sceneLayerThe scene layer that owns the content.
boundsThe widget bounds in world pixels.
speakerThe speaker.
textThe text to display.
nicknameAn optional name used to identify the object.

Definition at line 75 of file ConversationBox.cs.

Member Function Documentation

◆ Advance()

void Gondwana.Widgets.Dialogs.ConversationBox.Advance ( )

Programmatically requests the next conversation step.

Definition at line 243 of file ConversationBox.cs.

◆ OnKeyboardInput()

override void Gondwana.Widgets.Dialogs.ConversationBox.OnKeyboardInput ( WidgetKeyboardEventArgs args)
protectedvirtual

Called when keyboard input is routed to the widget.

Parameters
argsThe keyboard event data.

Reimplemented from Gondwana.Widgets.WidgetBase.

Definition at line 271 of file ConversationBox.cs.

◆ OnPointerClick()

override void Gondwana.Widgets.Dialogs.ConversationBox.OnPointerClick ( WidgetPointerEventArgs args)
protectedvirtual

Called when a pointer click is dispatched to the widget.

Parameters
argsThe pointer event data.

Reimplemented from Gondwana.Widgets.WidgetBase.

Definition at line 259 of file ConversationBox.cs.

◆ ProcessShown()

override void Gondwana.Widgets.Dialogs.ConversationBox.ProcessShown ( )
protectedvirtual

Performs processing when the widget is shown before notification callbacks are invoked.

Reimplemented from Gondwana.Widgets.WidgetBase.

Definition at line 252 of file ConversationBox.cs.

◆ SetConversation()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetConversation ( string speaker,
string text )

Changes the speaker and body text together.

Parameters
speakerThe speaker.
textThe text to display.
Returns
This instance for fluent chaining.

Definition at line 156 of file ConversationBox.cs.

◆ SetConversationZOrder()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetConversationZOrder ( int zOrder)

Sets the base Z-order used by the conversation visuals.

Parameters
zOrderThe drawing order relative to other content.
Returns
This instance for fluent chaining.

Definition at line 231 of file ConversationBox.cs.

◆ SetPanelColors()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetPanelColors ( Color fill,
Color border )

Sets the panel fill and border colors.

Parameters
fillThe fill.
borderThe border.
Returns
This instance for fluent chaining.

Definition at line 218 of file ConversationBox.cs.

◆ SetSpeaker()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetSpeaker ( string speaker)

Changes the speaker name.

Parameters
speakerThe speaker.
Returns
This instance for fluent chaining.

Definition at line 168 of file ConversationBox.cs.

◆ SetText()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetText ( string text)

Changes the conversation body text.

Parameters
textThe text to display.
Returns
This instance for fluent chaining.

Definition at line 180 of file ConversationBox.cs.

◆ SetTextColors()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.SetTextColors ( SKColor speakerColor,
SKColor bodyColor )

Sets the speaker and body text colors.

Parameters
speakerColorThe speaker color.
bodyColorThe body color.
Returns
This instance for fluent chaining.

Definition at line 205 of file ConversationBox.cs.

◆ ShowContinueIndicator()

ConversationBox Gondwana.Widgets.Dialogs.ConversationBox.ShowContinueIndicator ( bool visible = true)

Shows or hides the continue indicator.

Parameters
visibleWhether the content is visible.
Returns
This instance for fluent chaining.

Definition at line 192 of file ConversationBox.cs.

Property Documentation

◆ BodyText

TextBlock Gondwana.Widgets.Dialogs.ConversationBox.BodyText
get

Gets the conversation body text block.

Definition at line 114 of file ConversationBox.cs.

◆ Bounds

Rectangle Gondwana.Widgets.Dialogs.ConversationBox.Bounds
get

Gets the conversation bounds in its native coordinate space.

Definition at line 134 of file ConversationBox.cs.

◆ ContinueIndicator

TextBlock Gondwana.Widgets.Dialogs.ConversationBox.ContinueIndicator
get

Gets the small visual indicating that the conversation can advance.

Definition at line 119 of file ConversationBox.cs.

◆ Panel

DirectRectangle Gondwana.Widgets.Dialogs.ConversationBox.Panel
get

Gets the panel background.

Definition at line 104 of file ConversationBox.cs.

◆ PrimaryAdvanceKey

int Gondwana.Widgets.Dialogs.ConversationBox.PrimaryAdvanceKey = 13
getset

Gets or sets the primary key used to request the next conversation step. Defaults to Enter (13).

Definition at line 142 of file ConversationBox.cs.

◆ SecondaryAdvanceKey

int Gondwana.Widgets.Dialogs.ConversationBox.SecondaryAdvanceKey = 32
getset

Gets or sets the secondary key used to request the next conversation step. Defaults to Space (32).

Definition at line 148 of file ConversationBox.cs.

◆ Speaker

string Gondwana.Widgets.Dialogs.ConversationBox.Speaker
get

Gets the current speaker name.

Definition at line 124 of file ConversationBox.cs.

◆ SpeakerText

TextBlock Gondwana.Widgets.Dialogs.ConversationBox.SpeakerText
get

Gets the speaker-name text block.

Definition at line 109 of file ConversationBox.cs.

◆ Text

string Gondwana.Widgets.Dialogs.ConversationBox.Text
get

Gets the current conversation text.

Definition at line 129 of file ConversationBox.cs.

Event Documentation

◆ AdvanceRequested

Action? Gondwana.Widgets.Dialogs.ConversationBox.AdvanceRequested

Occurs when the player requests the next line or conversation step.

Definition at line 29 of file ConversationBox.cs.