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VERSION 1.0 CLASS |
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BEGIN |
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MultiUse = -1 'True |
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Persistable = 0 'NotPersistable |
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DataBindingBehavior = 0 'vbNone |
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DataSourceBehavior = 0 'vbNone |
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MTSTransactionMode = 0 'NotAnMTSObject |
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END |
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Attribute VB_Name = "Class_TrackSegment" |
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Attribute VB_GlobalNameSpace = False |
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Attribute VB_Creatable = True |
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Attribute VB_PredeclaredId = False |
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Attribute VB_Exposed = False |
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Option Explicit |
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|
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' --- public ---------------------------------------------------------------------------------------------- |
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|
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' --- private -------------------------------------------------------------------------------------------- |
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|
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Private prvtpVecPoint1 As D3DVECTOR |
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Private prvtpVecPoint2 As D3DVECTOR |
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' |
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|
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Public Sub SetPoints(tpVecPoint1 As D3DVECTOR, tpVecPoint2 As D3DVECTOR) |
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|
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prvtpVecPoint1 = tpVecPoint1 |
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prvtpVecPoint2 = tpVecPoint2 |
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|
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End Sub |
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|
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Public Function GetSide(tpVecPoint As D3DVECTOR) As Boolean |
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|
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Dim sgVsX As Single |
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Dim sgVsZ As Single |
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|
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Dim sgVnX As Single |
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Dim sgVnZ As Single |
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|
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Dim sgVpX As Single |
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Dim sgVpZ As Single |
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|
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Dim sgScalar As Single |
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|
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sgVsX = prvtpVecPoint2.X - prvtpVecPoint1.X ' Vs |
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sgVsZ = prvtpVecPoint2.Z - prvtpVecPoint1.Z |
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|
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sgVnX = sgVsZ ' normal of Vs |
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sgVnZ = -sgVsX |
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sgVpX = tpVecPoint.X - prvtpVecPoint1.X ' Vs |
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sgVpZ = tpVecPoint.Z - prvtpVecPoint1.Z ' Vs |
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sgScalar = sgVpX * sgVnX + sgVpZ * sgVnZ |
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GetSide = sgScalar < 0 |
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|
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End Function |
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