gorilla.bas

DOS 源代码 系列之 command 源码

  GetNum# = VAL(Result$)
END FUNCTION

'GorillaIntro:
'  Displays gorillas on screen for the first time
'  allows the graphical data to be put into an array
'Parameters:
'  Player1$, Player2$ - The names of the players
'
SUB GorillaIntro (Player1$, Player2$)
  LOCATE 16, 34: PRINT "--------------"
  LOCATE 18, 34: PRINT "V = View Intro"
  LOCATE 19, 34: PRINT "P = Play Game"
  LOCATE 21, 35: PRINT "Your Choice?"

  DO WHILE Char$ = ""
    Char$ = INKEY$
  LOOP

  IF Mode = 1 THEN
    x = 125
    y = 100
  ELSE
    x = 278
    y = 175
  END IF

  SCREEN Mode
  SetScreen

  IF Mode = 1 THEN Center 5, "Please wait while gorillas are drawn."

  VIEW PRINT 9 TO 24

  IF Mode = 9 THEN PALETTE OBJECTCOLOR, BackColor
 
  DrawGorilla x, y, ARMSDOWN
  CLS 2
  DrawGorilla x, y, LEFTUP
  CLS 2
  DrawGorilla x, y, RIGHTUP
  CLS 2
 
  VIEW PRINT 1 TO 25
  IF Mode = 9 THEN PALETTE OBJECTCOLOR, 46
 
  IF UCASE$(Char$) = "V" THEN
    Center 2, "Q B A S I C   G O R I L L A S"
    Center 5, "             STARRING:               "
    P$ = Player1$ + " AND " + Player2$
    Center 7, P$

    PUT (x - 13, y), GorD&, PSET
    PUT (x + 47, y), GorD&, PSET
    Rest 1

    PUT (x - 13, y), GorL&, PSET
    PUT (x + 47, y), GorR&, PSET
    PLAY "t120o1l16b9n0baan0bn0bn0baaan0b9n0baan0b"
    Rest .3

    PUT (x - 13, y), GorR&, PSET
    PUT (x + 47, y), GorL&, PSET
    PLAY "o2l16e-9n0e-d-d-n0e-n0e-n0e-d-d-d-n0e-9n0e-d-d-n0e-"
    Rest .3

    PUT (x - 13, y), GorL&, PSET
    PUT (x + 47, y), GorR&, PSET
    PLAY "o2l16g-9n0g-een0g-n0g-n0g-eeen0g-9n0g-een0g-"
    Rest .3

    PUT (x - 13, y), GorR&, PSET
    PUT (x + 47, y), GorL&, PSET
    PLAY "o2l16b9n0baan0g-n0g-n0g-eeen0o1b9n0baan0b"
    Rest .3

    FOR i = 1 TO 4
      PUT (x - 13, y), GorL&, PSET
      PUT (x + 47, y), GorR&, PSET
      PLAY "T160O0L32EFGEFDC"
      Rest .1
      PUT (x - 13, y), GorR&, PSET
      PUT (x + 47, y), GorL&, PSET
      PLAY "T160O0L32EFGEFDC"
      Rest .1
    NEXT
  END IF
END SUB

'Intro:
'  Displays game introduction
SUB Intro

  SCREEN 0
  WIDTH 80, 25
  MaxCol = 80
  COLOR 15, 0
  CLS

  Center 4, "Q B a s i c    G O R I L L A S"
  COLOR 7
  Center 6, "Copyright (C) Microsoft Corporation 1990"
  Center 8, "Your mission is to hit your opponent with the exploding"
  Center 9, "banana by varying the angle and power of your throw, taking"
  Center 10, "into account wind speed, gravity, and the city skyline."
  Center 11, "The wind speed is shown by a directional arrow at the bottom"
  Center 12, "of the playing field, its length relative to its strength."
  Center 24, "Press any key to continue"

  PLAY "MBT160O1L8CDEDCDL4ECC"
  SparklePause
  IF Mode = 1 THEN MaxCol = 40
END SUB

'MakeCityScape:
'  Creates random skyline for game
'Parameters:
'  BCoor() - a user-defined type array which stores the coordinates of
'  the upper left corner of each building.
SUB MakeCityScape (BCoor() AS XYPoint)

  x = 2

  'Set the sloping trend of the city scape. NewHt is new building height
  Slope = FnRan(6)
  SELECT CASE Slope
    CASE 1: NewHt = 15                 'Upward slope
    CASE 2: NewHt = 130                'Downward slope
    CASE 3 TO 5: NewHt = 15            '"V" slope - most common
    CASE 6: NewHt = 130                'Inverted "V" slope
  END SELECT

  IF Mode = 9 THEN
    BottomLine = 335                   'Bottom of building
    HtInc = 10                         'Increase value for new height
    DefBWidth = 37                     'Default building height
    RandomHeight = 120                 'Random height difference
    WWidth = 3                         'Window width
    WHeight = 6                        'Window height
    WDifV = 15                         'Counter for window spacing - vertical
    WDifh = 10                         'Counter for window spacing - horizontal
  ELSE
    BottomLine = 190
    HtInc = 6
    NewHt = NewHt * 20 \ 35            'Adjust for CGA
    DefBWidth = 18
    RandomHeight = 54
    WWidth = 1
    WHeight = 2
    WDifV = 5
    WDifh = 4
  END IF

  CurBuilding = 1
  DO

    SELECT CASE Slope
      CASE 1
        NewHt = NewHt + HtInc
      CASE 2
        NewHt = NewHt - HtInc
      CASE 3 TO 5
        IF x > ScrWidth \ 2 THEN
          NewHt = NewHt - 2 * HtInc
        ELSE
          NewHt = NewHt + 2 * HtInc
        END IF
      CASE 4
        IF x > ScrWidth \ 2 THEN
          NewHt = NewHt + 2 * HtInc
        ELSE
          NewHt = NewHt - 2 * HtInc
        END IF
    END SELECT

    'Set width of building and check to see if it would go off the screen
    BWidth = FnRan(DefBWidth) + DefBWidth
    IF x + BWidth > ScrWidth THEN BWidth = ScrWidth - x - 2

    'Set height of building and check to see if it goes below screen
    BHeight = FnRan(RandomHeight) + NewHt
    IF BHeight < HtInc THEN BHeight = HtInc

    'Check to see if Building is too high
    IF BottomLine - BHeight <= MaxHeight + GHeight THEN BHeight = MaxHeight + GHeight - 5

    'Set the coordinates of the building into the array
    BCoor(CurBuilding).XCoor = x
    BCoor(CurBuilding).YCoor = BottomLine - BHeight

    IF Mode = 9 THEN BuildingColor = FnRan(3) + 4 ELSE BuildingColor = 2

    'Draw the building, outline first, then filled
    LINE (x - 1, BottomLine + 1)-(x + BWidth + 1, BottomLine - BHeight - 1), BACKGROUND, B
    LINE (x, BottomLine)-(x + BWidth, BottomLine - BHeight), BuildingColor, BF

    'Draw the windows
    c = x + 3
    DO
      FOR i = BHeight - 3 TO 7 STEP -WDifV
        IF Mode <> 9 THEN
          WinColr = (FnRan(2) - 2) * -3
        ELSEIF FnRan(4) = 1 THEN
          WinColr = 8
        ELSE
          WinColr = WINDOWCOLOR
        END IF
        LINE (c, BottomLine - i)-(c + WWidth, BottomLine - i + WHeight), WinColr, BF
      NEXT
      c = c + WDifh
    LOOP UNTIL c >= x + BWidth - 3

    x = x + BWidth + 2

    CurBuilding = CurBuilding + 1

  LOOP UNTIL x > ScrWidth - HtInc

  LastBuilding = CurBuilding - 1

  'Set Wind speed
  Wind = FnRan(10) - 5
  IF FnRan(3) = 1 THEN
    IF Wind > 0 THEN
      Wind = Wind + FnRan(10)
    ELSE
      Wind = Wind - FnRan(10)
    END IF
  END IF

  'Draw Wind speed arrow
  IF Wind <> 0 THEN
    WindLine = Wind * 3 * (ScrWidth \ 320)
    LINE (ScrWidth \ 2, ScrHeight - 5)-(ScrWidth \ 2 + WindLine, ScrHeight - 5), ExplosionColor
    IF Wind > 0 THEN ArrowDir = -2 ELSE ArrowDir = 2
    LINE (ScrWidth / 2 + WindLine, ScrHeight - 5)-(ScrWidth / 2 + WindLine + ArrowDir, ScrHeight - 5 - 2), ExplosionColor
    LINE (ScrWidth / 2 + WindLine, ScrHeight - 5)-(ScrWidth / 2 + WindLine + ArrowDir, ScrHeight - 5 + 2), ExplosionColor
  END IF
END SUB

'PlaceGorillas:
'  PUTs the Gorillas on top of the buildings.  Must have drawn
'  Gorillas first.
'Parameters:
'  BCoor() - user-defined TYPE array which stores upper left coordinates
'  of each building.
SUB PlaceGorillas (BCoor() AS XYPoint)
    
  IF Mode = 9 THEN
    XAdj = 14
    YAdj = 30
  ELSE
    XAdj = 7
    YAdj = 16
  END IF
  SclX# = ScrWidth / 320
  SclY# = ScrHeight / 200
    
  'Place gorillas on second or third building from edge
  FOR i = 1 TO 2
    IF i = 1 THEN BNum = FnRan(2) + 1 ELSE BNum = LastBuilding - FnRan(2)

    BWidth = BCoor(BNum + 1).XCoor - BCoor(BNum).XCoor
    GorillaX(i) = BCoor(BNum).XCoor + BWidth / 2 - XAdj
    GorillaY(i) = BCoor(BNum).YCoor - YAdj
    PUT (GorillaX(i), GorillaY(i)), GorD&, PSET
  NEXT i

END SUB

'PlayGame:
'  Main game play routine
'Parameters:
'  Player1$, Player2$ - player names
'  NumGames - number of games to play
SUB PlayGame (Player1$, Player2$, NumGames)
  DIM BCoor(0 TO 30) AS XYPoint
  DIM TotalWins(1 TO 2)

  J = 1
  
  FOR i = 1 TO NumGames
    
    CLS
    RANDOMIZE (TIMER)
    CALL MakeCityScape(BCoor())
    CALL PlaceGorillas(BCoor())
    DoSun SUNHAPPY
    Hit = FALSE
    DO WHILE Hit = FALSE
      J = 1 - J
      LOCATE 1, 1
      PRINT Player1$
      LOCATE 1, (MaxCol - 1 - LEN(Player2$))
      PRINT Player2$
      Center 23, LTRIM$(STR$(TotalWins(1))) + ">Score<" + LTRIM$(STR$(TotalWins(2)))
      Tosser = J + 1: Tossee = 3 - J

      'Plot the shot.  Hit is true if Gorilla gets hit.
      Hit = DoShot(Tosser, GorillaX(Tosser), GorillaY(Tosser))

      'Reset the sun, if it got hit
      IF SunHit THEN DoSun SUNHAPPY

      IF Hit = TRUE THEN CALL UpdateScores(TotalWins(), Tosser, Hit)
    LOOP
    SLEEP 1
  NEXT i

  SCREEN 0
  WIDTH 80, 25
  COLOR 7, 0
  MaxCol = 80
  CLS

  Center 8, "GAME OVER!"
  Center 10, "Score:"
  LOCATE 11, 30: PRINT Player1$; TAB(50); TotalWins(1)
  LOCATE 12, 30: PRINT Player2$; TAB(50); TotalWins(2)
  Center 24, "Press any key to continue"
  SparklePause
  COLOR 7, 0
  CLS
END SUB

'PlayGame:
'  Plots banana shot across the screen
'Parameters:
'  StartX, StartY - starting shot location
'  Angle - shot angle
'  Velocity - shot velocity
'  PlayerNum - the banana thrower
FUNCTION PlotShot (StartX, StartY, Angle#, Velocity, PlayerNum)

  Angle# = Angle# / 180 * pi#  'Convert degree angle to radians
  Radius = Mode MOD 7

  InitXVel# = COS(Angle#) * Velocity
  InitYVel# = SIN(Angle#) * Velocity

  oldx# = StartX
  oldy# = StartY

  'draw gorilla toss
  IF PlayerNum = 1 THEN
    PUT (StartX, StartY), GorL&, PSET
  ELSE
    PUT (StartX, StartY), GorR&, PSET
  END IF
  
  'throw sound
  PLAY "MBo0L32A-L64CL16BL64A+"
  Rest .1

  'redraw gorilla
  PUT (StartX, StartY), GorD&, PSET

  adjust = Scl(4)                   'For scaling CGA

  xedge = Scl(9) * (2 - PlayerNum)  'Find leading edge of banana for check

  Impact = FALSE
  ShotInSun = FALSE
  OnScreen = TRUE
  PlayerHit = 0
  NeedErase = FALSE

  StartXPos = StartX
  StartYPos = StartY - adjust - 3

  IF PlayerNum = 2 THEN
    StartXPos = StartXPos + Scl(25)
    direction = Scl(4)
  ELSE
    direction = Scl(-4)
  END IF

  IF Velocity < 2 THEN              'Shot too slow - hit self
    x# = StartX
    y# = StartY
    pointval = OBJECTCOLOR
  END IF
   
  DO WHILE (NOT Impact) AND OnScreen
 
  Rest .02

  'Erase old banana, if necessary
  IF NeedErase THEN
    NeedErase = FALSE
    CALL DrawBan(oldx#, oldy#, oldrot, FALSE)
  END IF

  x# = StartXPos + (InitXVel# * t#) + (.5 * (Wind / 5) * t# ^ 2)
  y# = StartYPos + ((-1 * (InitYVel# * t#)) + (.5 * gravity# * t# ^ 2)) * (ScrHeight / 350)
         
  IF (x# >= ScrWidth - Scl(10)) OR (x# <= 3) OR (y# >= ScrHeight - 3) THEN
    OnScreen = FALSE
  END IF

          
  IF OnScreen AND y# > 0 THEN

    'check it
    LookY = 0
    LookX = Scl(8 * (2 - PlayerNum))
    DO
      pointval = POINT(x# + LookX, y# + LookY)
      IF pointval = 0 THEN
        Impact = FALSE
        IF ShotInSun = TRUE THEN
          IF ABS(ScrWidth \ 2 - x#) > Scl(20) OR y# > SunHt THEN ShotInSun = FALSE
        END IF
      ELSEIF pointval = SUNATTR AND y# < SunHt THEN
        IF NOT SunHit THEN DoSun SUNSHOCK
        SunHit = TRUE
        ShotInSun = TRUE
      ELSE
        Impact = TRUE
      END IF
      LookX = LookX + direction
      LookY = LookY + Scl(6)
    LOOP UNTIL Impact OR LookX <> Scl(4)
   
    IF NOT ShotInSun AND NOT Impact THEN
      'plot it
      rot = (t# * 10) MOD 4
      CALL DrawBan(x#, y#, rot, TRUE)
      NeedErase = TRUE
    END IF
            
    oldx# = x#
    oldy# = y#
    oldrot = rot

  END IF

      
  t# = t# + .1

  LOOP

  IF pointval <> OBJECTCOLOR AND Impact THEN
    CALL DoExplosion(x# + adjust, y# + adjust)
  ELSEIF pointval = OBJECTCOLOR THEN
    PlayerHit = ExplodeGorilla(x#, y#)
  END IF

  PlotShot = PlayerHit

END FUNCTION

'Rest:
'  pauses the program
SUB Rest (t#)
  s# = TIMER
  t2# = MachSpeed * t# / SPEEDCONST
  DO
  LOOP UNTIL TIMER - s# > t2#
END SUB

'Scl:
'  Pass the number in to scaling for cga.  If the number is a decimal, then we
'  want to scale down for cga or scale up for ega.  This allows a full range
'  of numbers to be generated for scaling.
'  (i.e. for 3 to get scaled to 1, pass in 2.9)
FUNCTION Scl (n!)

  IF n! <> INT(n!) THEN
      IF Mode = 1 THEN n! = n! - 1
  END IF
  IF Mode = 1 THEN
      Scl = CINT(n! / 2 + .1)
  ELSE
      Scl = CINT(n!)
  END IF

END FUNCTION

'SetScreen:
'  Sets the appropriate color statements
SUB SetScreen

  IF Mode = 9 THEN
    ExplosionColor = 2
    BackColor = 1
    PALETTE 0, 1
    PALETTE 1, 46
    PALETTE 2, 44
    PALETTE 3, 54
    PALETTE 5, 7
    PALETTE 6, 4
    PALETTE 7, 3
    PALETTE 9, 63       'Display Color
  ELSE
    ExplosionColor = 2
    BackColor = 0
    COLOR BackColor, 2

  END IF

END SUB

'SparklePause:
'  Creates flashing border for intro and game over screens
SUB SparklePause

  COLOR 4, 0
  A$ = "*    *    *    *    *    *    *    *    *    *    *    *    *    *    *    *    *    "
  WHILE INKEY$ <> "": WEND 'Clear keyboard buffer

  WHILE INKEY$ = ""
    FOR A = 1 TO 5
      LOCATE 1, 1                             'print horizontal sparkles
      PRINT MID$(A$, A, 80);
      LOCATE 22, 1
      PRINT MID$(A$, 6 - A, 80);

      FOR b = 2 TO 21                         'Print Vertical sparkles
        c = (A + b) MOD 5
        IF c = 1 THEN
          LOCATE b, 80
          PRINT "*";
          LOCATE 23 - b, 1
          PRINT "*";
        ELSE
          LOCATE b, 80
          PRINT " ";
          LOCATE 23 - b, 1
          PRINT " ";
        END IF
      NEXT b
    NEXT A
  WEND
END SUB

'UpdateScores:
'  Updates players' scores
'Parameters:
'  Record - players' scores
'  PlayerNum - player
'  Results - results of player's shot
SUB UpdateScores (Record(), PlayerNum, Results)
  IF Results = HITSELF THEN
    Record(ABS(PlayerNum - 3)) = Record(ABS(PlayerNum - 3)) + 1
  ELSE
    Record(PlayerNum) = Record(PlayerNum) + 1
  END IF
END SUB

'VictoryDance:
'  gorilla dances after he has eliminated his opponent
'Parameters:
'  Player - which gorilla is dancing
SUB VictoryDance (Player)

  FOR i# = 1 TO 4
    PUT (GorillaX(Player), GorillaY(Player)), GorL&, PSET
    PLAY "MFO0L32EFGEFDC"
    Rest .2
    PUT (GorillaX(Player), GorillaY(Player)), GorR&, PSET
    PLAY "MFO0L32EFGEFDC"
    Rest .2
  NEXT
END SUB