Very Basic Noob Sprite Demo

I know it's always good for noobs playing around with BMax to have something like this, so I threw it together. Nothing fancy, probably would have been better to use a TList, but I thought noobs might be more comfortable at the start with arrays. :)

Features:
Array of objects for sprite handling.
Basic delta time movement.
Frames per second displayed.

SuperStrict
'
' Basic Blitzmax Noob Sprite Demo By "MGE"
'
Const howmany:Int = 1000 ' <<<<<< Change this value for how many
'
Global sprites:TSprite[howmany]  ' Create an array of the type "TSprite"
Global MyImage:Timage = LoadImage("tile.png") ' any image file you want here
Global fps:Int        ' used to display the frames per second
Global fpstotal:Int   ' counts how many frames rendered in 1000ms (1 second)
Global ms:Float       ' var to keep track if 1000ms (1 sec) has passed
Global ms_start:Float ' var holds the beginning ms value at top of loop
Global delta:Float    ' simple delta time var. Difference between start and end in loop.
'
Type TSprite
 Field x:Float,y:Float
 Field xdir:Float,ydir:Float
 Field alfa:Float
 Field blendtype:Int
 '
 Method init()
  x = Rand(0,800)
  y = Rand(0,600)
  xdir = Rnd(-.2,.2)
  ydir = Rnd(-.2,.2)
  If Rand(0,100)>50
   blendtype = ALPHABLEND
  Else
   blendtype = LIGHTBLEND
  EndIf
  alfa = Rnd(.1,1)
 End Method
 '
 Method update()
  x=x+(xdir*delta)
  y=y+(ydir*delta)
  If x>800 Or x<0
   xdir=-xdir
   x=x+xdir
  EndIf
  If y>600 Or y<0
   ydir=-ydir
   y=y+ydir
  EndIf
  '
 End Method
 '
 Method render()
  SetAlpha alfa
  SetBlend blendtype
  DrawImage MyImage:Timage,x,y
 End Method
 '
End Type
'
Graphics(800,600,0,60) ' width, height, depth (16,32, 0=windowed), hz
'
For Local c:Int = 0 To howmany-1 ' arrays start at 0 so we go to total - 1
 sprites[c] = New TSprite            ' fill our array with our object type
 sprites[c].init                   ' call the object's init routine to set up the sprite
Next
'
resetstates()                    ' reset render states
ms = MilliSecs()                 ' get the current 1000ms clock
'
Repeat
 ' 
 ms_start=MilliSecs()
 '
 Cls
 '
 For Local obj:TSprite = EachIn sprites ' cycle through all objects in array
  obj.update          ' Call the "update" method to update sprite's position.
  obj.render          ' Call the "render" method to display the sprite.
 Next
 '
 resetstates() 
 DrawText "FPS: "+fps,0,0           ' Display how fast the program is running.
 Flip(0)                            ' Flip(1) for vsync, Flip(0) for full speed
 delta = MilliSecs() - ms_start     ' Computer delta, start time - end time of loop
 '
 DoFPS()                            ' Keep track of how many frames per second
 ' 
Until KeyHit(KEY_ESCAPE)            ' Press ESC to exit
'
EndGraphics()                       ' Close down graphics device
End                                 ' Still need docs on this command.
'
Function resetstates()              ' Reset render states
 SetColor(255,255,255)
 SetAlpha(1)
 SetBlend(ALPHABLEND)
 SetTransform 0,1,1
End Function
'
Function DoFPS()                    ' Inc frames, and track if 1 sec has passed
 fpstotal = fpstotal + 1
 If MilliSecs()>ms
  fps = fpstotal
  fpstotal = 0
  ms = MilliSecs() + 1000
 EndIf
End Function