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PO.net dynamic loading
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4611006
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2011-01-06T01:34:12.030
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2011-03-25T19:31:38.387
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441521
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I've seen some other responses about this and they talk about interfaces but I'm pretty sure you can do this with classes and base classes but I can't this to work. <pre><code>Public Class Behavior Private _name As String Public ReadOnly Property Name As String Get Return _name End Get End Property Public Property EditorUpdate As Boolean Public Sub New(ByVal name As String) _name = name EditorUpdate = False End Sub Public Overridable Sub Update() End Sub ' runs right away in editor mode. also runs when in stand alone game mode right away Public Overridable Sub Start() End Sub ' runs after game mode is done and right before back in editor mode Public Overridable Sub Finish() End Sub ' runs right when put into game mode Public Overridable Sub Initialize() End Sub ' runs when the game is complete in stand alone mode to clean up Public Overridable Sub Destroy() End Sub </code></pre> End Class <pre><code>Public Class CharacterController Inherits Behavior.Behavior Public Sub New() MyBase.New("Character Controller") End Sub Public Overrides Sub Update() ' TODO: call UpdateController() ' THINK: how can UpdateController() get the controller entity it's attached to? ' Behaviors need a way to get the entity they are attached to. Have that set when it's assigned in the ctor? End Sub </code></pre> End Class <pre><code>Dim plugins() As String Dim asm As Assembly plugins = Directory.GetFileSystemEntries(Path.Combine(Application.StartupPath, "Plugins"), "*.dll") For i As Integer = 0 To plugins.Length - 1 asm = Assembly.LoadFrom(plugins(i)) For Each t As Type In asm.GetTypes If t.IsPublic Then If t.BaseType.Name = "Behavior" Then behaviorTypes.Add(t.Name, t) Dim b As Behavior.Behavior b = CType(Activator.CreateInstance(t), Behavior.Behavior) 'Dim o As Object = Activator.CreateInstance(t) End If End If Next Next </code></pre> When it tries to convert whatever Activator.CreateInstance(t) returns to the base class of type Behavior I'm getting invalid cast exception. That type should be of CharacterController which is defined as a child of Behavior so why wouldn't it let me cast that? I've done something like this before but I can't find my code. What am I missing?
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<vb.net><reflection><dynamic>
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.net dynamic loading
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