Michael Fabian Dirks
164 lines
6.2 KiB
BlitzBasic
164 lines
6.2 KiB
BlitzBasic
Global LoD_Dist_Lv0# = 32, LoD_Dist_Lv1# = 64, LoD_Dist_Lv2# = 128, LoD_Dist_Lv3# = 256, LoD_Dist_Lv4# = 512
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Global LoD_Range# = 8
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Type LoDEntity
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Field Pivot% = 0
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; Levels
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Field LoDs%[5]
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; Temporary Values
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Field Visible%[5]
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Field Fade#[5]
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End Type
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Function LoD_Initialize(Dist_Range# = 8, Dist_Lv0# = 32, Dist_Lv1# = 64, Dist_Lv2# = 128, Dist_Lv3# = 256, Dist_Lv4# = 512)
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LoD_Range = Dist_Range
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; Distance Limits
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LoD_Dist_Lv0 = Dist_Lv0
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LoD_Dist_Lv1 = Dist_Lv1
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LoD_Dist_Lv2 = Dist_Lv2
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LoD_Dist_Lv3 = Dist_Lv3
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LoD_Dist_Lv4 = Dist_Lv4
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End Function
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Function LoD_Create.LoDEntity(Lv0, Lv1, Lv2, Lv3, Lv4)
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Local tInstance.LoDEntity = New LoDEntity
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tInstance\Pivot = CreatePivot()
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; Copy Entities
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tInstance\LoDs[0] = CopyEntity(Lv0, tInstance\Pivot):HideEntity tInstance\LoDs[0]
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tInstance\LoDs[1] = CopyEntity(Lv1, tInstance\Pivot):HideEntity tInstance\LoDs[1]
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tInstance\LoDs[2] = CopyEntity(Lv2, tInstance\Pivot):HideEntity tInstance\LoDs[2]
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tInstance\LoDs[3] = CopyEntity(Lv3, tInstance\Pivot):HideEntity tInstance\LoDs[3]
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tInstance\LoDs[4] = CopyEntity(Lv4, tInstance\Pivot):HideEntity tInstance\LoDs[4]
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Return tInstance
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End Function
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Function LoD_EntityAlpha(tInstance.LoDEntity, Alpha#, Level=-1)
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If (Level = -1) Then
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EntityAlpha tInstance\LoDs[0], Alpha
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EntityAlpha tInstance\LoDs[1], Alpha
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EntityAlpha tInstance\LoDs[2], Alpha
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EntityAlpha tInstance\LoDs[3], Alpha
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EntityAlpha tInstance\LoDs[4], Alpha
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Else
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EntityAlpha tInstance\LoDs[Level], Alpha
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EndIf
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End Function
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Function LoD_EntityBlend(tInstance.LoDEntity, Mode%, Level=-1)
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If (Level = -1) Then
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EntityBlend tInstance\LoDs[0], Mode
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EntityBlend tInstance\LoDs[1], Mode
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EntityBlend tInstance\LoDs[2], Mode
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EntityBlend tInstance\LoDs[3], Mode
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EntityBlend tInstance\LoDs[4], Mode
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Else
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EntityBlend tInstance\LoDs[Level], Mode
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EndIf
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End Function
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Function LoD_EntityColor(tInstance.LoDEntity, Red#, Green#, Blue#, Level=-1)
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If (Level = -1) Then
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EntityColor tInstance\LoDs[0], Red, Green, Blue
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EntityColor tInstance\LoDs[1], Red, Green, Blue
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EntityColor tInstance\LoDs[2], Red, Green, Blue
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EntityColor tInstance\LoDs[3], Red, Green, Blue
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EntityColor tInstance\LoDs[4], Red, Green, Blue
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Else
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EntityColor tInstance\LoDs[Level], Red, Green, Blue
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EndIf
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End Function
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Function LoD_EntityFX(tInstance.LoDEntity, FX%, Level=-1)
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If (Level = -1) Then
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EntityFX tInstance\LoDs[0], FX
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EntityFX tInstance\LoDs[1], FX
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EntityFX tInstance\LoDs[2], FX
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EntityFX tInstance\LoDs[3], FX
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EntityFX tInstance\LoDs[4], FX
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Else
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EntityFX tInstance\LoDs[Level], FX
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EndIf
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End Function
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Function LoD_EntityShininess(tInstance.LoDEntity, Shininess#, Level=-1)
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If (Level = -1) Then
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EntityShininess tInstance\LoDs[0], Shininess
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EntityShininess tInstance\LoDs[1], Shininess
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EntityShininess tInstance\LoDs[2], Shininess
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EntityShininess tInstance\LoDs[3], Shininess
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EntityShininess tInstance\LoDs[4], Shininess
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Else
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EntityShininess tInstance\LoDs[Level], Shininess
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EndIf
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End Function
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Function LoD_EntityTexture(tInstance.LoDEntity, Texture%, Frame%=0, Index%=0, Level=-1)
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If (Level = -1) Then
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EntityTexture tInstance\LoDs[0], Texture, Frame, Index
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EntityTexture tInstance\LoDs[1], Texture, Frame, Index
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EntityTexture tInstance\LoDs[2], Texture, Frame, Index
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EntityTexture tInstance\LoDs[3], Texture, Frame, Index
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EntityTexture tInstance\LoDs[4], Texture, Frame, Index
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Else
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EntityTexture tInstance\LoDs[Level], Texture, Frame, Index
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EndIf
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End Function
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Function LoD_EntityLoD(tInstance.LoDEntity)
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For Level = 0 To 4
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If (tInstance\Visible[Level]) Then Return Level
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Next
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Return 5
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End Function
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Function LoD_Update(eCamera, bDoFadeOut=False)
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For tInstance.LoDEntity = Each LoDEntity
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Local Dist# = EntityDistance(eCamera, tInstance\Pivot)
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; LoD Level 1 (Very High)
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If (Dist > 0) And ((bDoFadeOut And (Dist < LoD_Dist_Lv0 + LoD_Range)) Or (bDoFadeOut = False And (Dist < LoD_Dist_Lv0))) Then
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If tInstance\Visible[0] = False Then tInstance\Visible[0] = True:ShowEntity tInstance\LoDs[0]
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If bDoFadeOut = True And (Dist > LoD_Dist_Lv0) Then EntityAlpha tInstance\LoDs[0], 1.0 - (Dist - LoD_Dist_Lv0) / LoD_Range
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Else
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If tInstance\Visible[0] = True Then tInstance\Visible[0] = False:HideEntity tInstance\LoDs[0]
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EndIf
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; LoD Level 2 (High)
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If (Dist > LoD_Dist_Lv0) And ((bDoFadeOut And (Dist < LoD_Dist_Lv1 + LoD_Range)) Or (bDoFadeOut = False And (Dist < LoD_Dist_Lv1))) Then
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If tInstance\Visible[1] = False Then tInstance\Visible[1] = True:ShowEntity tInstance\LoDs[1]
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If bDoFadeOut = True And (Dist > LoD_Dist_Lv1) Then EntityAlpha tInstance\LoDs[1], 1.0 - (Dist - LoD_Dist_Lv1) / LoD_Range
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Else
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If tInstance\Visible[1] = True Then tInstance\Visible[1] = False:HideEntity tInstance\LoDs[1]
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EndIf
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; LoD Level 3 (Normal)
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If (Dist > LoD_Dist_Lv1) And ((bDoFadeOut And (Dist < LoD_Dist_Lv2 + LoD_Range)) Or (bDoFadeOut = False And (Dist < LoD_Dist_Lv2))) Then
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If tInstance\Visible[2] = False Then tInstance\Visible[2] = True:ShowEntity tInstance\LoDs[2]
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If bDoFadeOut = True And (Dist > LoD_Dist_Lv2) Then EntityAlpha tInstance\LoDs[2], 1.0 - (Dist - LoD_Dist_Lv2) / LoD_Range
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Else
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If tInstance\Visible[2] = True Then tInstance\Visible[2] = False:HideEntity tInstance\LoDs[2]
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EndIf
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; LoD Level 4 (Low)
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If (Dist > LoD_Dist_Lv2) And ((bDoFadeOut And (Dist < LoD_Dist_Lv3 + LoD_Range)) Or (bDoFadeOut = False And (Dist < LoD_Dist_Lv3))) Then
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If tInstance\Visible[3] = False Then tInstance\Visible[3] = True:ShowEntity tInstance\LoDs[3]
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If bDoFadeOut = True And (Dist > LoD_Dist_Lv3) Then EntityAlpha tInstance\LoDs[3], 1.0 - (Dist - LoD_Dist_Lv3) / LoD_Range
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Else
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If tInstance\Visible[3] = True Then tInstance\Visible[3] = False:HideEntity tInstance\LoDs[3]
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EndIf
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; LoD Level 5 (Very Low) (Usually a Sprite)
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If (Dist > LoD_Dist_Lv3) And ((bDoFadeOut And (Dist < LoD_Dist_Lv4 + LoD_Range)) Or (bDoFadeOut = False And (Dist < LoD_Dist_Lv4))) Then
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If tInstance\Visible[4] = False Then tInstance\Visible[4] = True:ShowEntity tInstance\LoDs[4]
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If bDoFadeOut = True And (Dist > LoD_Dist_Lv4) Then EntityAlpha tInstance\LoDs[4], 1.0 - (Dist - LoD_Dist_Lv4) / LoD_Range
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Else
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If tInstance\Visible[4] = True Then tInstance\Visible[4] = False:HideEntity tInstance\LoDs[4]
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EndIf
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Next
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End Function
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