Tank wont move...

Havent really gotten around to makin' a 3d game in Blitz3d, so I decided to make somethin simple that I could actually work one, which I've based off a lil' mini-game in Sly2 (for PS2) which involved moving a tank around a map being able to fire rounds off in 360 degrees blowing up enemies, while shooting out barriers to finish the area, or hit a switch to open up a passage to another area...

Anyway, I havent gotten pretty far in the project which I probably will never get around to finishing, but the fact I cant figure out why my tank (or its pivot at least) wont move is startin to bug me........anyone able to scan through my (messy) code see anything wrong here?

AppTitle "Tanky"
Graphics3D 640,480,0,2

;// Create the camera, .....why did I even comment that?
Global cam = CreateCamera()
PositionEntity cam, 0,20,-5
RotateEntity cam,75,0,0

;// Two parts to my lil' tank figures, the body, and the turret on top
Global tankbody = LoadMesh("tank.3ds")
HideEntity tankbody
RotateEntity tankbody,90,0,0

Global tankturret = LoadMesh("turret.3ds")
HideEntity tankturret
RotateEntity tankturret,90,0,0


;// Create a plane and texture it so I aint starin into space 24/7
grid = LoadTexture("tile.png") 
plane = CreatePlane() 
EntityTexture plane, grid


;// Control : 1 = Player, 2 = AI, body = model for body, turret = turret, 
;//           currdir = current direction, bodydir = direction it should be at
;//           pivot = the thing that actually moves around
Type tanky
	Field control, body, turret, currdir, bodydir, pivot 
End Type


;// Create Tank for player
CreateTank(1,0,0,0)



While Not KeyHit(1)


	
UpdateTank()

UpdateWorld
RenderWorld

;// Check the whereabouts of my tank's pivot
t.tanky = First tanky
Text 0,0, "PlayerTank's X-Pivot @ " +EntityX(t.tanky\pivot)
Text 0,10, "PlayerTank's Z-Pivot @ " +EntityZ(t.tanky\pivot)

Wend
End





Function CreateTank(kind, x, z, dir)

		t.tanky = New tanky
		t.tanky\control = kind
		t.tanky\pivot = CreatePivot()
		t.tanky\body = CopyEntity(tankbody,t.tanky\pivot)
		t.tanky\bodydir = dir
		t.tanky\turret = CopyEntity(tankturret,t.tanky\body) 
		 
	
		If kind = 1 ;// If the tank is for player, color the tank, and make camera follow it
			EntityColor t.tanky\body,0,255,0
			EntityColor t.tanky\turret,0,200,0
			EntityParent cam, t.tanky\pivot
		EndIf 
		
		PositionEntity t.tanky\body, x, 0.5, z 
	
	
End Function



Function UpdateTank()


	For t.tanky = Each tanky
	
		If t.tanky\control = 1
		
			If KeyDown(17) ;// W
				MoveEntity t.tanky\pivot,0,0,0.1
			ElseIf KeyDown(31) ;// S	
				MoveEntity t.tanky\pivot, 0,0,-0.1
			EndIf	

			If KeyDown(30) ;// A
				MoveEntity t.tanky\pivot, -0.1,0,0
			ElseIf KeyDown(32) ;// D
				MoveEntity t.tanky\pivot, 0.1,0,0
			EndIf
		
		EndIf
		
	Next
		
End Function

The only thing I can think of is that the problem might involve the use of CopyEntity() for creating my tank with.....

I don't see a "Flip" Command...I've done this before :)

/slap's self.