' =========================================================================
'   File....... SW21-EX06-Las_Vegas.SXB
'   Purpose.... Bar or Dot Graph with LEDs
'   Author..... (C) 2000 - 2005, Parallax, Inc.
'   E-mail..... support@parallax.com
'   Started.... 01 SEP 2005
'   Updated.... 23 MAR 2007 by TSaavik for SX28
' =========================================================================

' -----[ Program Description ]---------------------------------------------
'
' This program simulates a very simple slot machine game, complete with
' sound FX. The constants TAdj and FAdj may require adjustment when using
' on faster BASIC Stamp modules.

'------{ Device Settings ]-------------------------------------------------

DEVICE 		SX28,TURBO,BANKS8,OSCHS3,SYNC,OPTIONX
FREQ            50_000_000
ID		"EX03"

' -----[ I/O Definitions ]-------------------------------------------------

LEDs            VAR     RB			' LEDs on RB.0 - RB.7
'Pot            VAR     RA.0                    ' Pot circuit IO
Speaker         VAR     RC.0                       ' speaker output
PlayBtn         VAR     RA.1                       ' button input to play

' -----[ Constants ]-------------------------------------------------------

TAdj            CON     $100                    ' time adjust factor
FAdj            CON     $100                    ' frequency adjust factor
no		CON	1
yes		CON	0


' -----[ Variables ]-------------------------------------------------------

rndVal          VAR     Byte                    ' random number
pattern         VAR     Byte                    ' light pattern
tone            VAR     Word                    ' tone output
swData          VAR     Byte                    ' workspace for BUTTON
delay           VAR     Word                    ' delay while "spinning"
spin1           VAR     Byte                    ' loop counter
spin2           VAR     Byte                    ' loop counter
adjustedFreq	VAR	Byte			' to hold tone */ FAdj
Time		VAR	Byte	
tmpB1		VAR	Byte
TmpB2		VAR	Byte
TmpW1		VAR	Word

' -----[ Initialization ]-------------------------------------------------
PROGRAM Start
 watch rndVal, 8, UBIN
 watch pattern
 watch tone   
 watch swData 
 watch delay  
 watch spin1  
 watch spin2  
 watch adjustedFreq
 watch Time	
 watch tmpB1	
 watch TmpB2
 watch PlayBtn
 watch LEDs, 8, UBIN


' -----[Subs ]------------------------------------------------------------
BREAKS Sub
' -----[ Program Code ]----------------------------------------------------

Start:
  LEDS = %00000000                              ' start with right LED on
  Tris_B = %00000000                            ' make LEDs outputs

Main:
  DO
    'GOSUB Get_Random                            ' get random number/tone
    'adjustedFreq = tone */ FAdj
    'FREQOUT Speaker, adjustedTime, adjustedFreq   ' FREQOUT pin, duration(0-65535), Freq1(0-32767)
    Sound Speaker, 90, 10   ' Sound pin, Note(0-127), Duration(1-255)
    Sound Speaker, 110, 10   ' Sound pin, Note(0-127), Duration(1-255)
    Sound Speaker, 90, 10   ' Sound pin, Note(0-127), Duration(1-255)
    PAUSE 100                      ' delay between rolls
play:
  DO WHILE PlayBtn = no
    loop
    goto Spin
    Pause 10
  LOOP

Spin:
  LEDs = %00111111                              ' simulate machine reset
  PAUSE 750
  LEDs = %00000000
  PAUSE 500
  delay = 75                                    ' initialize delay

  FOR spin1 = 1 TO 25                           ' spin the wheel
    GOSUB Get_Random                            ' get random number
    'FREQOUT Speaker, 25 */ TAdj, 425 */ FAdj    ' wheel click
    Sound Speaker, 110 , 30     ' wheel click
    PAUSE delay                                 ' pause between clicks
    delay = delay */ $0119                      ' multiply delay by 1.1
  NEXT

  IF pattern = %00111111 THEN                 ' if all lit, you win
    FOR spin1 = 1 TO 4
      FOR spin2 = 0 TO 3
        LOOKUP spin2, $00, $0C, $12, $21, LEDs
        LOOKUP spin2, 80, 90, 100, 110, tone
        'FREQOUT Speaker, 35 */ TAdj, tone */ FAdj
        Sound Speaker, 35, tone
        PAUSE 65
      NEXT
    NEXT
  ELSE
    Sound Speaker, 80, 75  ' otherwise, groan...
    Sound Speaker, 60, 150
  ENDIF

Clear_Game:
  LEDs = %00000000                              ' clear LEDs
  GOTO Play                                     ' do it again


' -----[ Subroutines ]-----------------------------------------------------

Get_Random:
  RANDOM rndVal                                 ' get pseudo-random number
  tone = rndVal & $7FF                          ' keep in reasonable range
  pattern = rndVal & %00111111                  ' mask out unused bits
  LEDs = pattern
  Breaks
RETURN

BREAKS:
  Break
Return