Steady Delta Time Routine

This code has been declared by its author to be Public Domain code.

Steady Delta Time Routine by Chroma

2002

Delta time differs from frame to frame. This routine stabilizes the delta time for more accurate delta time based movment. While working on Luftwaffe Ace 1946, I noticed this was a big problem because all objects are moved on delta time. This wipes it out and works great for me!

;Smooth Delta Time Routine
;by Chroma

;Set Graphics
Graphics3D 800,600,16,1
SetBuffer BackBuffer()

;Lights, Camera...Action!
camera = CreateCamera()
light = CreateLight()

;create test cube
cube = CreateCube()
MoveEntity cube,0,0,5


While Not KeyHit(1)
Cls

TurnEntity cube,0,1,0

UpdateWorld
RenderWorld


;Turn Steady Delta On and Off
If KeyHit(28)
	If deltamode=0 Then deltamode=1 Else deltamode=0
EndIf

;-------------------;
;-Steady Delta Time-;
;-------------------;

;-Get Per Frame Delta Time---------------------;
tempdelta#=(MilliSecs() - oldmillisecs#) / 1000
oldmillisecs#=MilliSecs()

;Check Current Delta Against Old Delta
;If Delta Changes by more than 0.004
;Reset the Delta
If tempdelta# > delta# + 0.004
	delta# = tempdelta#
Else
If tempdelta# < delta# - 0.004
	delta# = tempdelta#
EndIf
EndIf
;----------------------------------------------;

;Switch Delta Mode by Hitting Enter
If deltamode
	deltatime#=delta
Else
	deltatime#=tempdelta
EndIf


Text 5,5,"Press <Enter> for Steady Delta."
Text 5,25,"Steady Delta Mode:"+deltamode
;Show Steady Delta
Text 5,45,"Steady Delta Time: "+deltatime#


Flip
Wend

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