Fix Tholian motion.
[super-star-trek.git] / src / sst.py
index 1aa671bfbd1656821bef2d2b7c0b80cbc840e823..dff69d5235b98837f1d9530aaf557042992c6db9 100644 (file)
@@ -200,6 +200,7 @@ MAXKLGAME   = 127
 MAXKLQUAD      = 9
 FULLCREW       = 428   # BSD Trek was 387, that's wrong 
 FOREVER        = 1e30
+MAXBURST       = 3
 
 # These functions hide the difference between 0-origin and 1-origin addressing.
 def VALID_QUADRANT(x, y):      return ((x)>=0 and (x)<GALSIZE and (y)>=0 and (y)<GALSIZE)
@@ -247,7 +248,7 @@ class coord:
     def __add__(self, other):
         return coord(self.x+self.x, self.y+self.y)
     def __sub__(self, other):
-        return coord(self.x-self.x, self.y-self.y)
+        return coord(self.x-other.x, self.y-other.y)
     def distance(self, other):
         return math.sqrt((self.x - other.x)**2 + (self.y - other.y)**2)
     def sgn(self):
@@ -424,16 +425,22 @@ class enemy:
         self.kpower = power    # enemy energy level
         game.enemies.append(self)
     def move(self, loc):
+        motion = (loc != self.kloc)
         if self.kloc.x is not None and self.kloc.y is not None:
-            game.quad[self.kloc.x][self.kloc.y] = IHDOT
+            if motion:
+                if self.type == IHT:
+                    game.quad[self.kloc.x][self.kloc.y] = IHWEB
+                else:
+                    game.quad[self.kloc.x][self.kloc.y] = IHDOT
         if loc:
-            self.kloc = loc
+            self.kloc = copy.copy(loc)
             game.quad[self.kloc.x][self.kloc.y] = self.type
             self.kdist = self.kavgd = distance(game.sector, loc)
         else:
-            self.kloc = coord()        # enemy sector location
+            self.kloc = coord()
             self.kdist = self.kavgd = None
             game.enemies.remove(self)
+        return motion
     def __repr__(self):
         return "<%s=%f>" % (self.kloc, self.kpower)    # For debugging
 
@@ -442,7 +449,7 @@ class gamestate:
         self.options = None    # Game options
         self.state = snapshot()        # A snapshot structure
         self.snapsht = snapshot()      # Last snapshot taken for time-travel purposes
-        self.quad = fill2d(QUADSIZE, lambda i, j: IHDOT)       # contents of our quadrant
+        self.quad = None       # contents of our quadrant
         self.damage = [0.0] * NDEVICES # damage encountered
         self.future = []               # future events
         for i in range(NEVENTS):
@@ -578,25 +585,6 @@ FTRIBBLE = 19
 FHOLE = 20
 FCREW = 21
 
-# From enumerated type 'COLORS'
-DEFAULT = 0
-BLACK = 1
-BLUE = 2
-GREEN = 3
-CYAN = 4
-RED = 5
-MAGENTA = 6
-BROWN = 7
-LIGHTGRAY = 8
-DARKGRAY = 9
-LIGHTBLUE = 10
-LIGHTGREEN = 11
-LIGHTCYAN = 12
-LIGHTRED = 13
-LIGHTMAGENTA = 14
-YELLOW = 15
-WHITE = 16
-
 # Log the results of pulling random numbers so we can check determinism.
 
 import traceback
@@ -622,7 +610,7 @@ def randreal(*args):
 
 # Code from ai.c begins here
 
-def tryexit(look, ienm, loccom, irun):
+def tryexit(enemy, look, irun):
     # a bad guy attempts to bug out 
     iq = coord()
     iq.x = game.quadrant.x+(look.x+(QUADSIZE-1))/QUADSIZE - 1
@@ -631,11 +619,11 @@ def tryexit(look, ienm, loccom, irun):
        game.state.galaxy[iq.x][iq.y].supernova or \
        game.state.galaxy[iq.x][iq.y].klingons > MAXKLQUAD-1:
        return False; # no can do -- neg energy, supernovae, or >MAXKLQUAD-1 Klingons 
-    if ienm == IHR:
+    if enemy.type == IHR:
        return False; # Romulans cannot escape! 
     if not irun:
        # avoid intruding on another commander's territory 
-       if ienm == IHC:
+       if enemy.type == IHC:
            for n in range(game.state.remcom):
                if game.state.kcmdr[n] == iq:
                    return False
@@ -643,23 +631,23 @@ def tryexit(look, ienm, loccom, irun):
            if game.battle == game.quadrant:
                return False
        # don't leave if over 1000 units of energy 
-       if game.enemies[loccom].kpower > 1000.0:
+       if enemy.kpower > 1000.0:
            return False
     # print escape message and move out of quadrant.
     # we know this if either short or long range sensors are working
     if not damaged(DSRSENS) or not damaged(DLRSENS) or \
-       game.condition == docked:
-       crmena(True, ienm, "sector", game.enemies[loccom].kloc)
+       game.condition == "docked":
+       crmena(True, enemy.type, "sector", enemy.kloc)
        prout(_(" escapes to Quadrant %s (and regains strength).") % q)
     # handle local matters related to escape
-    game.enemies[loccom].move(None)
+    enemy.move(None)
     game.klhere -= 1
-    if game.condition != docked:
+    if game.condition != "docked":
        newcnd()
     # Handle global matters related to escape 
     game.state.galaxy[game.quadrant.x][game.quadrant.y].klingons -= 1
     game.state.galaxy[iq.x][iq.y].klingons += 1
-    if ienm==IHS:
+    if enemy.type==IHS:
        game.ishere = False
        game.iscate = False
        game.ientesc = False
@@ -715,7 +703,7 @@ def tryexit(look, ienm, loccom, irun):
 # 5.  Motion is limited to skill level, except for SC hi-tailing it out.
 # 
 
-def movebaddy(com, loccom, ienm):
+def movebaddy(enemy):
     # tactical movement for the bad guys 
     next = coord(); look = coord()
     irun = False
@@ -724,17 +712,16 @@ def movebaddy(com, loccom, ienm):
        nbaddys = ((game.comhere*2 + game.ishere*2+game.klhere*1.23+game.irhere*1.5)/2.0)
     else:
        nbaddys = game.comhere + game.ishere
-
-    dist1 = game.enemies[loccom].kdist
+    dist1 = enemy.kdist
     mdist = int(dist1 + 0.5); # Nearest integer distance 
     # If SC, check with spy to see if should hi-tail it 
-    if ienm==IHS and \
-       (game.enemies[loccom].kpower <= 500.0 or (game.condition=="docked" and not damaged(DPHOTON))):
+    if enemy.type==IHS and \
+       (enemy.kpower <= 500.0 or (game.condition=="docked" and not damaged(DPHOTON))):
        irun = True
        motion = -QUADSIZE
     else:
        # decide whether to advance, retreat, or hold position 
-       forces = game.enemies[loccom].kpower+100.0*len(game.enemies)+400*(nbaddys-1)
+       forces = enemy.kpower+100.0*len(game.enemies)+400*(nbaddys-1)
        if not game.shldup:
            forces += 1000; # Good for enemy if shield is down! 
        if not damaged(DPHASER) or not damaged(DPHOTON):
@@ -782,35 +769,33 @@ def movebaddy(com, loccom, ienm):
     if idebug:
        proutn("NSTEPS = %d:" % nsteps)
     # Compute preferred values of delta X and Y 
-    mx = game.sector.x - com.x
-    my = game.sector.y - com.y
-    if 2.0 * abs(mx) < abs(my):
-       mx = 0
-    if 2.0 * abs(my) < abs(game.sector.x-com.x):
-       my = 0
-    if mx != 0:
-        if mx*motion < 0:
-            mx = -1
+    m = game.sector - enemy.kloc
+    if 2.0 * abs(m.x) < abs(m.y):
+       m.x = 0
+    if 2.0 * abs(m.y) < abs(game.sector.x-enemy.kloc.x):
+       m.y = 0
+    if m.x != 0:
+        if m.x*motion < 0:
+            m.x = -1
         else:
-            mx = 1
-    if my != 0:
-        if my*motion < 0:
-            my = -1
+            m.x = 1
+    if m.y != 0:
+        if m.y*motion < 0:
+            m.y = -1
         else:
-            my = 1
-    next = com
+            m.y = 1
+    next = enemy.kloc
     # main move loop 
     for ll in range(nsteps):
        if idebug:
            proutn(" %d" % (ll+1))
        # Check if preferred position available 
-       look.x = next.x + mx
-       look.y = next.y + my
-        if mx < 0:
+       look = next + m
+        if m.x < 0:
             krawlx = 1
         else:
             krawlx = -1
-        if my < 0:
+        if m.y < 0:
             krawly = 1
         else:
             krawly = -1
@@ -819,29 +804,29 @@ def movebaddy(com, loccom, ienm):
        while attempts < 20 and not success:
             attempts += 1
            if look.x < 0 or look.x >= QUADSIZE:
-               if motion < 0 and tryexit(look, ienm, loccom, irun):
+               if motion < 0 and tryexit(enemy, look, irun):
                    return
-               if krawlx == mx or my == 0:
+               if krawlx == m.x or m.y == 0:
                    break
                look.x = next.x + krawlx
                krawlx = -krawlx
            elif look.y < 0 or look.y >= QUADSIZE:
-               if motion < 0 and tryexit(look, ienm, loccom, irun):
+               if motion < 0 and tryexit(enemy, look, irun):
                    return
-               if krawly == my or mx == 0:
+               if krawly == m.y or m.x == 0:
                    break
                look.y = next.y + krawly
                krawly = -krawly
            elif (game.options & OPTION_RAMMING) and game.quad[look.x][look.y] != IHDOT:
-               # See if we should ram ship 
+               # See if enemy should ram ship 
                if game.quad[look.x][look.y] == game.ship and \
-                   (ienm == IHC or ienm == IHS):
-                   ram(True, ienm, com)
+                   (enemy.type == IHC or enemy.type == IHS):
+                   collision(rammed=True, enemy=enemy)
                    return
-               if krawlx != mx and my != 0:
+               if krawlx != m.x and m.y != 0:
                    look.x = next.x + krawlx
                    krawlx = -krawlx
-               elif krawly != my and mx != 0:
+               elif krawly != m.y and m.x != 0:
                    look.y = next.y + krawly
                    krawly = -krawly
                else:
@@ -854,21 +839,14 @@ def movebaddy(com, loccom, ienm):
                proutn(`next`)
        else:
            break; # done early 
-       
     if idebug:
        skip(1)
-    # Put commander in place within same quadrant 
-    game.quad[com.x][com.y] = IHDOT
-    game.quad[next.x][next.y] = ienm
-    if next != com:
-       # it moved 
-       game.enemies[loccom].kloc = next
-       game.enemies[loccom].kdist = game.enemies[loccom].kavgd = distance(game.sector, next)
-       if not damaged(DSRSENS) or game.condition == docked:
+    if enemy.move(next):
+       if not damaged(DSRSENS) or game.condition == "docked":
            proutn("***")
-           cramen(ienm)
-           proutn(_(" from Sector %s") % com)
-           if game.enemies[loccom].kdist < dist1:
+           cramen(enemy.type)
+           proutn(_(" from Sector %s") % enemy.kloc)
+           if enemy.kdist < dist1:
                proutn(_(" advances to "))
            else:
                proutn(_(" retreats to "))
@@ -881,22 +859,21 @@ def moveklings():
     # Figure out which Klingon is the commander (or Supercommander)
     # and do move
     if game.comhere:
-        for (i, e) in enumerate(game.enemies):
-           if game.quad[e.kloc.x][e.kloc.y] == IHC:
-               movebaddy(e.kloc, i, IHC)
-               break
+        for enemy in game.enemies:
+           if enemy.type == IHC:
+               movebaddy(enemy)
     if game.ishere:
-        for (i, e) in enumerate(game.enemies):
-           if game.quad[e.kloc.x][e.kloc.y] == IHS:
-               movebaddy(e.kloc, i, IHS)
+        for enemy in game.enemies:
+           if enemy.type == IHS:
+               movebaddy(enemy)
                break
     # If skill level is high, move other Klingons and Romulans too!
     # Move these last so they can base their actions on what the
     # commander(s) do.
     if game.skill >= SKILL_EXPERT and (game.options & OPTION_MVBADDY):
-        for (i, e) in enumerate(game.enemies):
-            if game.quad[e.kloc.x][e.kloc.y] in (IHK, IHR):
-               movebaddy(e.kloc, i, game.quad[e.kloc.x][e.kloc.y])
+        for enemy in game.enemies:
+            if enemy.type in (IHK, IHR):
+               movebaddy(enemy)
     game.enemies.sort(lambda x, y: cmp(x.kdist, y.kdist))
 
 def movescom(iq, avoid):
@@ -923,12 +900,12 @@ def movescom(iq, avoid):
        game.ishere = False
        game.ientesc = False
        unschedule(FSCDBAS)
-       for e in game.enemies:
-           if game.quad[e.kloc.x][e.kloc.y] == IHS:
+       for enemy in game.enemies:
+           if enemy.type == IHS:
                break
-       game.enemies[i].move(None)
+       enemy.move(None)
        game.klhere -= 1
-       if game.condition!=docked:
+       if game.condition != "docked":
            newcnd()
         game.enemies.sort(lambda x, y: cmp(x.kdist, y.kdist))
     # check for a helpful planet 
@@ -1070,41 +1047,40 @@ def supercommander():
     return
 
 def movetholian():
-    # move the Tholian 
+    # move the Tholian
     if not game.tholian or game.justin:
        return
+    id = coord()
     if game.tholian.kloc.x == 0 and game.tholian.kloc.y == 0:
-       idx = 0; idy = QUADSIZE-1
+       id.x = 0; id.y = QUADSIZE-1
     elif game.tholian.kloc.x == 0 and game.tholian.kloc.y == QUADSIZE-1:
-       idx = QUADSIZE-1; idy = QUADSIZE-1
+       id.x = QUADSIZE-1; id.y = QUADSIZE-1
     elif game.tholian.kloc.x == QUADSIZE-1 and game.tholian.kloc.y == QUADSIZE-1:
-       idx = QUADSIZE-1; idy = 0
+       id.x = QUADSIZE-1; id.y = 0
     elif game.tholian.kloc.x == QUADSIZE-1 and game.tholian.kloc.y == 0:
-       idx = 0; idy = 0
+       id.x = 0; id.y = 0
     else:
        # something is wrong! 
-       game.tholian = None
+       game.tholian.move(None)
+        prout("***Internal error: Tholian in a bad spot.")
        return
     # do nothing if we are blocked 
-    if game.quad[idx][idy]!= IHDOT and game.quad[idx][idy]!= IHWEB:
+    if game.quad[id.x][id.y] not in (IHDOT, IHWEB):
        return
-    game.quad[game.tholian.kloc.x][game.tholian.kloc.y] = IHWEB
-    if game.tholian.kloc.x != idx:
-       # move in x axis 
-       im = math.fabs(idx - game.tholian.kloc.x)*1.0/(idx - game.tholian.kloc.x)
-       while game.tholian.kloc.x != idx:
-           game.tholian.kloc.x += im
-           if game.quad[game.tholian.kloc.x][game.tholian.kloc.y]==IHDOT:
-               game.quad[game.tholian.kloc.x][game.tholian.kloc.y] = IHWEB
-    elif game.tholian.kloc.y != idy:
-       # move in y axis 
-       im = math.fabs(idy - game.tholian.kloc.y)*1.0/(idy - game.tholian.kloc.y)
-       while game.tholian.kloc.y != idy:
-           game.tholian.kloc.y += im
-           if game.quad[game.tholian.kloc.x][game.tholian.kloc.y]==IHDOT:
-               game.quad[game.tholian.kloc.x][game.tholian.kloc.y] = IHWEB
-    game.quad[game.tholian.kloc.x][game.tholian.kloc.y] = IHT
-    #game.enemies[-1].kloc = game.tholian      #FIXME
+    here = copy.copy(game.tholian.kloc)
+    delta = (id - game.tholian.kloc).sgn()
+    # move in x axis 
+    while here.x != id.x:
+        #print "Moving in X", delta
+        here.x += delta.x
+        if game.quad[here.kloc.x][here.y]==IHDOT:
+            game.tholian.move(here)
+    # move in y axis 
+    while here.y != id.y:
+        #print "Moving in Y", delta
+        here.y += delta.y
+        if game.quad[here.x][here.y]==IHDOT:
+            game.tholian.move(here)
     # check to see if all holes plugged 
     for i in range(QUADSIZE):
        if game.quad[0][i]!=IHWEB and game.quad[0][i]!=IHT:
@@ -1121,6 +1097,7 @@ def movetholian():
     crmena(True, IHT, "sector", game.tholian)
     prout(_(" completes web."))
     game.tholian.move(None)
+    print "Tholian movement ends"
     return
 
 # Code from battle.c begins here
@@ -1284,24 +1261,24 @@ def randdevice():
            return i
     return None;       # we should never get here
 
-def ram(ibumpd, ienm, w):
-    # make our ship ram something 
+def collision(rammed, enemy):
+    # collision handling
     prouts(_("***RED ALERT!  RED ALERT!"))
     skip(1)
     prout(_("***COLLISION IMMINENT."))
     skip(2)
     proutn("***")
     crmshp()
-    hardness = {IHR:1.5, IHC:2.0, IHS:2.5, IHT:0.5, IHQUEST:4.0}.get(ienm, 1.0)
-    if ibumpd:
+    hardness = {IHR:1.5, IHC:2.0, IHS:2.5, IHT:0.5, IHQUEST:4.0}.get(enemy.type, 1.0)
+    if rammed:
         proutn(_(" rammed by "))
     else:
         proutn(_(" rams "))
-    crmena(False, ienm, "sector", w)
-    if ibumpd:
+    crmena(False, enemy.type, "sector", enemy.kloc)
+    if rammed:
        proutn(_(" (original position)"))
     skip(1)
-    deadkl(w, ienm, game.sector)
+    deadkl(enemy.kloc, enemy.type, game.sector)
     proutn("***")
     crmshp()
     prout(_(" heavily damaged."))
@@ -1331,16 +1308,16 @@ def ram(ibumpd, ienm, w):
        finish(FWON)
     return
 
-def torpedo(course, r, incoming, i, n):
+def torpedo(course, dispersion, origin, number, nburst):
     # let a photon torpedo fly 
     iquad = 0
     shoved = False
-    ac = course + 0.25*r
+    ac = course + 0.25*dispersion
     angle = (15.0-ac)*0.5235988
     bullseye = (15.0 - course)*0.5235988
     deltax = -math.sin(angle);
     deltay = math.cos(angle);
-    x = incoming.x; y = incoming.y
+    x = origin.x; y = origin.y
     w = coord(); jw = coord()
     w.x = w.y = jw.x = jw.y = 0
     bigger = max(math.fabs(deltax), math.fabs(deltay))
@@ -1351,7 +1328,7 @@ def torpedo(course, r, incoming, i, n):
     else: 
        setwnd(message_window)
     # Loop to move a single torpedo 
-    for l in range(1, 15+1):
+    for step in range(1, 15+1):
        x += deltax
        w.x = int(x + 0.5)
        y += deltay
@@ -1359,7 +1336,7 @@ def torpedo(course, r, incoming, i, n):
        if not VALID_SECTOR(w.x, w.y):
            break
        iquad=game.quad[w.x][w.y]
-       tracktorpedo(w, l, i, n, iquad)
+       tracktorpedo(w, step, number, nburst, iquad)
        if iquad==IHDOT:
            continue
        # hit something 
@@ -1372,7 +1349,7 @@ def torpedo(course, r, incoming, i, n):
            crmshp()
            prout(".")
            hit = 700.0 + randreal(100) - \
-               1000.0 * distance(w, incoming) * math.fabs(math.sin(bullseye-angle))
+               1000.0 * distance(w, origin) * math.fabs(math.sin(bullseye-angle))
            newcnd(); # we're blown out of dock 
            # We may be displaced. 
            if game.landed or game.condition=="docked":
@@ -1409,7 +1386,7 @@ def torpedo(course, r, incoming, i, n):
                    break
            kp = math.fabs(e.kpower)
            h1 = 700.0 + randrange(100) - \
-               1000.0 * distance(w, incoming) * math.fabs(math.sin(bullseye-angle))
+               1000.0 * distance(w, origin) * math.fabs(math.sin(bullseye-angle))
            h1 = math.fabs(h1)
            if kp < h1:
                h1 = kp
@@ -1428,8 +1405,8 @@ def torpedo(course, r, incoming, i, n):
                temp = math.fabs(math.cos(ang))
            xx = -math.sin(ang)/temp
            yy = math.cos(ang)/temp
-           jw.x=w.x+xx+0.5
-           jw.y=w.y+yy+0.5
+           jw.x = int(w.x+xx+0.5)
+           jw.y = int(w.y+yy+0.5)
            if not VALID_SECTOR(jw.x, jw.y):
                prout(_(" damaged but not destroyed."))
                return
@@ -1526,7 +1503,7 @@ def torpedo(course, r, incoming, i, n):
            return None
        elif iquad == IHT:  # Hit a Tholian 
            h1 = 700.0 + randrange(100) - \
-               1000.0 * distance(w, incoming) * math.fabs(math.sin(bullseye-angle))
+               1000.0 * distance(w, origin) * math.fabs(math.sin(bullseye-angle))
            h1 = math.fabs(h1)
            if h1 >= 600:
                game.quad[w.x][w.y] = IHDOT
@@ -1661,9 +1638,9 @@ def attack(torps_ok):
                crmena(False, enemy.type, where, enemy.kloc)
            attempt = True
            prout("  ")
-           r = (randreal()+randreal())*0.5 - 0.5
-           r += 0.002*enemy.kpower*r
-           hit = torpedo(course, r, enemy.kloc, 1, 1)
+           dispersion = (randreal()+randreal())*0.5 - 0.5
+           dispersion += 0.002*enemy.kpower*dispersion
+           hit = torpedo(course, dispersion, origin=enemy.kloc, number=1, nburst=1)
            if (game.state.remkl + game.state.remcom + game.state.nscrem)==0:
                finish(FWON); # Klingons did themselves in! 
            if game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova or game.alldone:
@@ -1729,7 +1706,7 @@ def attack(torps_ok):
     prout(_("%d%%,   torpedoes left %d") % (percent, game.torps))
     # Check if anyone was hurt 
     if hitmax >= 200 or hittot >= 500:
-       icas = randrange(hittot * 0.015)
+       icas = randrange(int(hittot * 0.015))
        if icas >= 2:
            skip(1)
            prout(_("Mc Coy-  \"Sickbay to bridge.  We suffered %d casualties") % icas)
@@ -1798,13 +1775,13 @@ def deadkl(w, type, mv):
            break
     return
 
-def targetcheck(x, y):
+def targetcheck(w):
     # Return None if target is invalid 
-    if not VALID_SECTOR(x, y):
+    if not VALID_SECTOR(w.x, w.y):
        huh()
        return None
-    deltx = 0.1*(y - game.sector.y)
-    delty = 0.1*(x - game.sector.x)
+    deltx = 0.1*(w.y - game.sector.y)
+    delty = 0.1*(w.x - game.sector.x)
     if deltx==0 and delty== 0:
        skip(1)
        prout(_("Spock-  \"Bridge to sickbay.  Dr. McCoy,"))
@@ -1815,7 +1792,8 @@ def targetcheck(x, y):
     return 1.90985932*math.atan2(deltx, delty)
 
 def photon():
-    # launch photon torpedo 
+    # launch photon torpedo
+    course = [0.0] * MAXBURST
     game.ididit = False
     if damaged(DPHOTON):
        prout(_("Photon tubes damaged."))
@@ -1832,63 +1810,66 @@ def photon():
            return
        elif key == IHEOL:
            prout(_("%d torpedoes left.") % game.torps)
+            chew()
            proutn(_("Number of torpedoes to fire- "))
            key = scan()
        else: # key == IHREAL  {
-           n = aaitem + 0.5
+           n = int(round(aaitem + 0.5))
            if n <= 0: # abort command 
                chew()
                return
-           if n > 3:
+           if n > MAXBURST:
                chew()
-               prout(_("Maximum of 3 torpedoes per burst."))
+               prout(_("Maximum of %d torpedoes per burst.") % MAXBURST)
                key = IHEOL
                return
            if n <= game.torps:
                break
            chew()
            key = IHEOL
-    for i in range(1, n+1):
+    targ = []
+    for i in range(MAXBURST):
+        targ.append(coord())
+    for i in range(n):
        key = scan()
-       if i==1 and key == IHEOL:
+       if i==0 and key == IHEOL:
            break;      # we will try prompting 
-       if i==2 and key == IHEOL:
+       if i==1 and key == IHEOL:
            # direct all torpedoes at one target 
            while i <= n:
-               targ[i][1] = targ[1][1]
-               targ[i][2] = targ[1][2]
-               course[i] = course[1]
+               targ[i] = targ[0]
+               course[i] = course[0]
                i += 1
            break
        if key != IHREAL:
            huh()
            return
-       targ[i][1] = aaitem
+       targ[i].x = aaitem
        key = scan()
        if key != IHREAL:
            huh()
            return
-       targ[i][2] = aaitem
-       course[i] = targetcheck(targ[i][1], targ[i][2])
+       targ[i].y = aaitem
+       course[i] = targetcheck(targ[i])
         if course[i] == None:
            return
     chew()
     if i == 1 and key == IHEOL:
        # prompt for each one 
-       for i in range(1, n+1):
-           proutn(_("Target sector for torpedo number %d- ") % i)
+       for i in range(n):
+           proutn(_("Target sector for torpedo number %d- ") % (i+1))
            key = scan()
            if key != IHREAL:
                huh()
                return
-           targ[i][1] = int(aaitem-0.5)
+           targ[i].x = int(aaitem-0.5)
            key = scan()
            if key != IHREAL:
                huh()
                return
-           targ[i][2] = int(aaitem-0.5)
+           targ[i].y = int(aaitem-0.5)
            chew()
-            course[i] = targetcheck(targ[i][1], targ[i][2])
+            course[i] = targetcheck(targ[i])
             if course[i] == None:
                 return
     game.ididit = True
@@ -1896,10 +1877,10 @@ def photon():
     for i in range(n):
        if game.condition != "docked":
            game.torps -= 1
-       r = (randreal()+randreal())*0.5 -0.5
-       if math.fabs(r) >= 0.47:
+       dispersion = (randreal()+randreal())*0.5 -0.5
+       if math.fabs(dispersion) >= 0.47:
            # misfire! 
-           r *= randreal(1.2, 2.2)
+           dispersion *= randreal(1.2, 2.2)
            if n > 0:
                prouts(_("***TORPEDO NUMBER %d MISFIRES") % (i+1))
            else:
@@ -1912,8 +1893,8 @@ def photon():
                game.damage[DPHOTON] = game.damfac * randreal(1.0, 3.0)
            break
        if game.shldup or game.condition == "docked":
-           r *= 1.0 + 0.0001*game.shield
-       torpedo(course[i], r, game.sector, i, n)
+           dispersion *= 1.0 + 0.0001*game.shield
+       torpedo(course[i], dispersion, origin=game.sector, number=i, nburst=n)
        if game.alldone or game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova:
            return
     if (game.state.remkl + game.state.remcom + game.state.nscrem)==0:
@@ -1948,7 +1929,7 @@ def checkshctrl(rpow):
     prouts(_("Sulu-  \"Captain! Shield malfunction! Phaser fire contained!\""))
     skip(2)
     prout(_("Lt. Uhura-  \"Sir, all decks reporting damage.\""))
-    icas = randrange(hit*0.012)
+    icas = randrange(int(hit*0.012))
     skip(1)
     fry(0.8*hit)
     if icas:
@@ -1965,7 +1946,7 @@ def checkshctrl(rpow):
 
 def hittem(hits):
     # register a phaser hit on Klingons and Romulans
-    nenhr2 = game.nenhere; kk=0
+    nenhr2 = len(game.enemies); kk=0
     w = coord()
     skip(1)
     for (k, wham) in enumerate(hits):
@@ -2018,7 +1999,7 @@ def phasers():
     automode = "NOTSET"
     key=0
     skip(1)
-    # SR sensors and Computer are needed fopr automode 
+    # SR sensors and Computer are needed for automode 
     if damaged(DSRSENS) or damaged(DCOMPTR):
        itarg = False
     if game.condition == "docked":
@@ -2046,7 +2027,7 @@ def phasers():
        key=scan()
        if key == IHALPHA:
            if isit("manual"):
-               if game.nenhere==0:
+               if len(game.enemies)==0:
                    prout(_("There is no enemy present to select."))
                    chew()
                    key = IHEOL
@@ -2055,10 +2036,10 @@ def phasers():
                    automode = "MANUAL"
                    key = scan()
            elif isit("automatic"):
-               if (not itarg) and game.nenhere != 0:
+               if (not itarg) and len(game.enemies) != 0:
                    automode = "FORCEMAN"
                else:
-                   if game.nenhere==0:
+                   if len(game.enemies)==0:
                        prout(_("Energy will be expended into space."))
                    automode = "AUTOMATIC"
                    key = scan()
@@ -2068,7 +2049,7 @@ def phasers():
                huh()
                return
        elif key == IHREAL:
-           if game.nenhere==0:
+           if len(game.enemies)==0:
                prout(_("Energy will be expended into space."))
                automode = "AUTOMATIC"
            elif not itarg:
@@ -2077,7 +2058,7 @@ def phasers():
                automode = "AUTOMATIC"
        else:
            # IHEOL 
-           if game.nenhere==0:
+           if len(game.enemies)==0:
                prout(_("Energy will be expended into space."))
                automode = "AUTOMATIC"
            elif not itarg:
@@ -2092,13 +2073,13 @@ def phasers():
        if key == IHALPHA and isit("no"):
            no = True
            key = scan()
-       if key != IHREAL and game.nenhere != 0:
+       if key != IHREAL and len(game.enemies) != 0:
            prout(_("Phasers locked on target. Energy available: %.2f")%avail)
        irec=0
         while True:
            chew()
            if not kz:
-               for i in range(game.nenhere):
+               for i in range(len(game.enemies)):
                    irec += math.fabs(game.enemies[i].kpower)/(PHASEFAC*math.pow(0.90,game.enemies[i].kdist))*randreal(1.01, 1.06) + 1.0
            kz=1
            proutn(_("%d units required. ") % irec)
@@ -2128,10 +2109,10 @@ def phasers():
        chew()
        game.energy -= rpow
        extra = rpow
-       if game.nenhere:
+       if len(game.enemies):
            extra = 0.0
            powrem = rpow
-           for i in range(game.nenhere):
+           for i in range(len(game.enemies)):
                hits.append(0.0)
                if powrem <= 0:
                    continue
@@ -2151,7 +2132,7 @@ def phasers():
        if extra > 0 and not game.alldone:
            if game.tholian:
                proutn(_("*** Tholian web absorbs "))
-               if game.nenhere>0:
+               if len(game.enemies)>0:
                    proutn(_("excess "))
                prout(_("phaser energy."))
            else:
@@ -2171,7 +2152,7 @@ def phasers():
            skip(1)
     elif automode == "MANUAL":
        rpow = 0.0
-        for k in range(game.nenhere):
+        for k in range(len(game.enemies)):
            aim = game.enemies[k].kloc
            ienm = game.quad[aim.x][aim.y]
            if msgflag:
@@ -2179,8 +2160,8 @@ def phasers():
                skip(1)
                msgflag = False
                rpow = 0.0
-           if damaged(DSRSENS) and not (abs(game.sector.x-aim.x) < 2 and abs(game.sector.y-aim.y) < 2) and \
-               (ienm == IHC or ienm == IHS):
+           if damaged(DSRSENS) and \
+               not game.sector.distance(aim)<2**0.5 and ienm in (IHC, IHS):
                cramen(ienm)
                prout(_(" can't be located without short range scan."))
                chew()
@@ -2351,7 +2332,7 @@ def events():
         newqad(False)
         # Adjust finish time to time of tractor beaming 
         fintim = game.state.date+game.optime
-        attack(False)
+        attack(torps_ok=False)
         if game.state.remcom <= 0:
             unschedule(FTBEAM)
         else: 
@@ -2725,7 +2706,7 @@ def wait():
     origTime = delay = aaitem
     if delay <= 0.0:
        return
-    if delay >= game.state.remtime or game.nenhere != 0:
+    if delay >= game.state.remtime or len(game.enemies) != 0:
        proutn(_("Are you sure? "))
        if ja() == False:
            return
@@ -2738,13 +2719,13 @@ def wait():
            prout(_("%d stardates left.") % int(game.state.remtime))
            return
        temp = game.optime = delay
-       if game.nenhere:
+       if len(game.enemies):
            rtime = randreal(1.0, 2.0)
            if rtime < temp:
                temp = rtime
            game.optime = temp
        if game.optime < delay:
-           attack(False)
+           attack(torps_ok=False)
        if game.alldone:
            return
        events()
@@ -2862,7 +2843,7 @@ def nova(nov):
                 elif iquad == IHK: # kill klingon 
                     deadkl(neighbor, iquad, neighbor)
                 elif iquad in (IHC,IHS,IHR): # Damage/destroy big enemies 
-                    for ll in range(game.nenhere):
+                    for ll in range(len(game.enemies)):
                         if game.enemies[ll].kloc == neighbor:
                             break
                     game.enemies[ll].kpower -= 800.0 # If firepower is lost, die 
@@ -3074,10 +3055,10 @@ def kaboom():
     skip(1)
     stars()
     skip(1)
-    if game.nenhere != 0:
+    if len(game.enemies) != 0:
        whammo = 25.0 * game.energy
        l=1
-       while l <= game.nenhere:
+       while l <= len(game.enemies):
            if game.enemies[l].kpower*game.enemies[l].kdist <= whammo: 
                deadkl(game.enemies[l].kloc, game.quad[game.enemies[l].kloc.x][game.enemies[l].kloc.y], game.enemies[l].kloc)
            l += 1
@@ -3517,6 +3498,7 @@ def iostart():
        #noecho()
         global fullscreen_window, srscan_window, report_window, status_window
         global lrscan_window, message_window, prompt_window
+        (rows, columns)   = stdscr.getmaxyx()
        fullscreen_window = stdscr
        srscan_window     = curses.newwin(12, 25, 0,       0)
        report_window     = curses.newwin(11, 0,  1,       25)
@@ -3528,8 +3510,16 @@ def iostart():
        setwnd(fullscreen_window)
        textcolor(DEFAULT)
 
+def textcolor(color):
+    "Set text foreground color.  Presently a stub."
+    pass       # FIXME
+
+def ioend():
+    "Wrap up I/O.  Presently a stub."
+    pass
+
 def waitfor():
-    "wait for user action -- OK to do nothing if on a TTY"
+    "Wait for user action -- OK to do nothing if on a TTY"
     if game.options & OPTION_CURSES:
        stsdcr.getch()
 
@@ -3627,9 +3617,9 @@ def cgetline():
                 elif line[0] != "#":
                     break
        else:
-           line = raw_input()
+           line = raw_input() + "\n"
     if logfp:
-       logfp.write("$" + line + "\n")
+       logfp.write(line)
     return line
 
 def setwnd(wnd):
@@ -3653,45 +3643,7 @@ def clrscr():
        curwnd.move(0, 0)
        curwnd.refresh()
     linecount = 0
-
-def textcolor(color):
-    "Set the current text color"
-    if game.options & OPTION_CURSES:
-       if color == DEFAULT: 
-           curwnd.attrset(0)
-       elif color == BLACK: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_BLACK))
-       elif color == BLUE: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_BLUE))
-       elif color == GREEN: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_GREEN))
-       elif color == CYAN: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_CYAN))
-       elif color == RED: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_RED))
-       elif color == MAGENTA: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_MAGENTA))
-       elif color == BROWN: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_YELLOW))
-       elif color == LIGHTGRAY: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_WHITE))
-       elif color == DARKGRAY: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_BLACK) | curses.A_BOLD)
-       elif color == LIGHTBLUE: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_BLUE) | curses.A_BOLD)
-       elif color == LIGHTGREEN: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_GREEN) | curses.A_BOLD)
-       elif color == LIGHTCYAN: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_CYAN) | curses.A_BOLD)
-       elif color == LIGHTRED: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_RED) | curses.A_BOLD)
-       elif color == LIGHTMAGENTA: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_MAGENTA) | curses.A_BOLD)
-       elif color == YELLOW: 
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_YELLOW) | curses.A_BOLD)
-       elif color == WHITE:
-           curwnd.attron(curses.COLOR_PAIR(curses.COLOR_WHITE) | curses.A_BOLD)
-
+    
 def highvideo():
     "Set highlight video, if this is reasonable."
     if game.options & OPTION_CURSES:
@@ -3755,27 +3707,27 @@ def warble():
        #nosound()
         pass
 
-def tracktorpedo(w, l, i, n, iquad):
+def tracktorpedo(w, step, i, n, iquad):
     "Torpedo-track animation." 
     if not game.options & OPTION_CURSES:
-       if l == 1:
+       if step == 1:
            if n != 1:
                skip(1)
                proutn(_("Track for torpedo number %d-  ") % i)
            else:
                skip(1)
                proutn(_("Torpedo track- "))
-       elif l==4 or l==9: 
+       elif step==4 or step==9: 
            skip(1)
-       proutn("%d - %d   " % (w.x, w.y))
+       proutn("%s   " % w)
     else:
        if not damaged(DSRSENS) or game.condition=="docked":
-           if i != 1 and l == 1:
+           if i != 0 and step == 1:
                drawmaps(2)
                time.sleep(0.4)
            if (iquad==IHDOT) or (iquad==IHBLANK):
                put_srscan_sym(w, '+')
-               #sound(l*10)
+               #sound(step*10)
                #time.sleep(0.1)
                #nosound()
                put_srscan_sym(w, iquad)
@@ -3788,7 +3740,7 @@ def tracktorpedo(w, l, i, n, iquad):
                curwnd.attroff(curses.A_REVERSE)
                put_srscan_sym(w, iquad)
        else:
-           proutn("%d - %d   " % (w.x, w.y))
+           proutn("%s   " % w)
 
 def makechart():
     "Display the current galaxy chart."
@@ -3823,15 +3775,15 @@ def imove(novapush):
     def no_quad_change():
         # No quadrant change -- compute new average enemy distances 
         game.quad[game.sector.x][game.sector.y] = game.ship
-        if game.nenhere:
-            for m in range(game.nenhere):
+        if len(game.enemies):
+            for m in range(len(game.enemies)):
                 finald = distance(w, game.enemies[m].kloc)
                 game.enemies[m].kavgd = 0.5 * (finald+game.enemies[m].kdist)
                 game.enemies[m].kdist = finald
             game.enemies.sort(lambda x, y: cmp(x.kdist, y.kdist))
             if not game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova:
-                attack(False)
-            for m in range(game.nenhere):
+                attack(torps_ok=False)
+            for m in range(len(game.enemies)):
                 game.enemies[m].kavgd = game.enemies[m].kdist
         newcnd()
         drawmaps(0)
@@ -3869,9 +3821,9 @@ def imove(novapush):
            if not VALID_SECTOR(w.x, w.y):
                # Leaving quadrant -- allow final enemy attack 
                # Don't do it if being pushed by Nova 
-               if game.nenhere != 0 and not novapush:
+               if len(game.enemies) != 0 and not novapush:
                    newcnd()
-                   for m in range(game.nenhere):
+                   for m in range(len(game.enemies)):
                        finald = distance(w, game.enemies[m].kloc)
                        game.enemies[m].kavgd = 0.5 * (finald + game.enemies[m].kdist)
                    #
@@ -3880,7 +3832,7 @@ def imove(novapush):
                    # are present and your skill is good.
                    # 
                    if game.skill > SKILL_GOOD and game.klhere > 0 and not game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova:
-                       attack(False)
+                       attack(torps_ok=False)
                    if game.alldone:
                        return
                # compute final position -- new quadrant and sector 
@@ -3930,7 +3882,7 @@ def imove(novapush):
                game.quad[game.sector.x][game.sector.y] = game.ship
                newqad(False)
                if game.skill>SKILL_NOVICE:
-                   attack(False)  
+                   attack(torps_ok=False)  
                return
            iquad = game.quad[w.x][w.y]
            if iquad != IHDOT:
@@ -3939,7 +3891,10 @@ def imove(novapush):
                game.dist = distance(game.sector, w) / (QUADSIZE * 1.0)
                 if iquad in (IHT, IHK, IHC, IHS, IHR, IHQUEST):
                    game.sector = w
-                   ram(False, iquad, game.sector)
+                    for enemy in game.enemies:
+                        if enemy.kloc == game.sector:
+                            break
+                   collision(rammed=False, enemy=enemy)
                    final = game.sector
                elif iquad == IHBLANK:
                    skip(1)
@@ -4645,13 +4600,13 @@ def mayday():
        proutn(_(" attempt to re-materialize "))
        crmshp()
        game.quad[ix][iy]=(IHMATER0,IHMATER1,IHMATER2)[m-1]
-       textcolor(RED)
+       textcolor("red")
        warble()
        if randreal() > probf:
            break
        prout(_("fails."))
        curses.delay_output(500)
-       textcolor(DEFAULT)
+       textcolor(None)
     if m > 3:
        game.quad[ix][iy]=IHQUEST
        game.alive = False
@@ -4660,9 +4615,9 @@ def mayday():
        finish(FMATERIALIZE)
        return
     game.quad[ix][iy]=game.ship
-    textcolor(GREEN)
+    textcolor("green")
     prout(_("succeeds."))
-    textcolor(DEFAULT)
+    textcolor(None)
     dock(False)
     skip(1)
     prout(_("Lt. Uhura-  \"Captain, we made it!\""))
@@ -5150,7 +5105,7 @@ def deathray():
     if game.ship != IHE:
        prout(_("Ye Faerie Queene has no death ray."))
        return
-    if game.nenhere==0:
+    if len(game.enemies)==0:
        prout(_("Sulu-  \"But Sir, there are no enemies in this quadrant.\""))
        return
     if damaged(DDRAY):
@@ -5182,7 +5137,7 @@ def deathray():
     if r > dprob:
        prouts(_("Sulu- \"Captain!  It's working!\""))
        skip(2)
-       while game.nenhere > 0:
+       while len(game.enemies) > 0:
            deadkl(game.enemies[1].kloc, game.quad[game.enemies[1].kloc.x][game.enemies[1].kloc.y],game.enemies[1].kloc)
        prout(_("Ensign Chekov-  \"Congratulations, Captain!\""))
        if (game.state.remkl + game.state.remcom + game.state.nscrem) == 0:
@@ -5436,15 +5391,15 @@ def sectscan(goodScan, i, j):
     # light up an individual dot in a sector 
     if goodScan or (abs(i-game.sector.x)<= 1 and abs(j-game.sector.y) <= 1):
        if (game.quad[i][j]==IHMATER0) or (game.quad[i][j]==IHMATER1) or (game.quad[i][j]==IHMATER2) or (game.quad[i][j]==IHE) or (game.quad[i][j]==IHF):
-           if game.condition   == "red": textcolor(RED)
-           elif game.condition == "green": textcolor(GREEN)
-           elif game.condition == "yellow": textcolor(YELLOW)
-           elif game.condition == "docked": textcolor(CYAN)
-           elif game.condition == "dead": textcolor(BROWN)
+           if game.condition   == "red": textcolor("red")
+           elif game.condition == "green": textcolor("green")
+           elif game.condition == "yellow": textcolor("yellow")
+           elif game.condition == "docked": textcolor("cyan")
+           elif game.condition == "dead": textcolor("brown")
            if game.quad[i][j] != game.ship: 
                highvideo()
        proutn("%c " % game.quad[i][j])
-       textcolor(DEFAULT)
+       textcolor(None)
     else:
        proutn("- ")
 
@@ -5543,7 +5498,6 @@ def srscan():
            sectscan(goodScan, i, j)
        skip(1)
                        
-                       
 def eta():
     # use computer to get estimated time of arrival for a warp jump 
     w1 = coord(); w2 = coord()
@@ -5994,10 +5948,10 @@ def setup(needprompt):
        prout(_("  YOU'LL NEED IT."))
     waitfor()
     newqad(False)
-    if game.nenhere - (thing == game.quadrant) - (game.tholian != None):
+    if len(game.enemies) - (thing == game.quadrant) - (game.tholian != None):
        game.shldup = True
     if game.neutz:     # bad luck to start in a Romulan Neutral Zone
-       attack(False)
+       attack(torps_ok=False)
 
 def choose(needprompt):
     # choose your game type
@@ -6009,7 +5963,7 @@ def choose(needprompt):
        game.length = 0
        if needprompt: # Can start with command line options 
            proutn(_("Would you like a regular, tournament, or saved game? "))
-       scan()
+        print "About to call scan()"
        if len(citem)==0: # Try again
            continue
         if isit("tournament"):
@@ -6146,12 +6100,13 @@ def newqad(shutup):
     game.ishere = False
     game.irhere = 0
     game.iplnet = 0
-    game.nenhere = 0
     game.neutz = False
     game.inorbit = False
     game.landed = False
     game.ientesc = False
     game.iseenit = False
+    # Create a blank quadrant
+    game.quad = fill2d(QUADSIZE, lambda i, j: IHDOT)
     if game.iscate:
        # Attempt to escape Super-commander, so tbeam back!
        game.iscate = False
@@ -6162,7 +6117,6 @@ def newqad(shutup):
        return
     game.klhere = q.klingons
     game.irhere = q.romulans
-    game.nenhere = game.klhere + game.irhere
     # Position Starship
     game.quad[game.sector.x][game.sector.y] = game.ship
     game.enemies = []
@@ -6186,7 +6140,7 @@ def newqad(shutup):
            game.iscate = (game.state.remkl > 1)
            game.ishere = True
     # Put in Romulans if needed
-    for i in range(game.klhere, game.nenhere):
+    for i in range(game.klhere, len(game.enemies)):
         enemy(IHR, loc=dropin(), power=randreal(400.0,850.0)+50.0*game.skill)
     # If quadrant needs a starbase, put it in
     if q.starbase:
@@ -6213,7 +6167,7 @@ def newqad(shutup):
     if shutup==0:
        # Put in THING if needed
        if thing == game.quadrant:
-           enemy(symbol=IHQUEST, loc=dropin(),
+           enemy(type=IHQUEST, loc=dropin(),
                       power=randreal(6000,6500.0)+250.0*game.skill)
            if not damaged(DSRSENS):
                skip(1)
@@ -6230,7 +6184,7 @@ def newqad(shutup):
                w.y = withprob(0.5) * (QUADSIZE-1)
                 if game.quad[w.x][w.y] == IHDOT:
                     break
-            game.tholian = enemy(symbol=IHT, loc=w,
+            game.tholian = enemy(type=IHT, loc=w,
                                  power=randrange(100, 500) + 25.0*game.skill)
            # Reserve unoccupied corners 
            if game.quad[0][0]==IHDOT:
@@ -6451,7 +6405,7 @@ def makemoves():
        elif cmd == "DOCK":             # dock at starbase
            dock(True)
            if game.ididit:
-               attack(False)           
+               attack(torps_ok=False)          
        elif cmd == "DAMAGES":          # damage reports
            damagereport()
        elif cmd == "CHART":            # chart
@@ -6459,7 +6413,7 @@ def makemoves():
        elif cmd == "IMPULSE":          # impulse
            impulse()
        elif cmd == "REST":             # rest
-           os.wait()
+           wait()
            if game.ididit:
                hitme = True
        elif cmd == "WARP":             # warp
@@ -6536,7 +6490,7 @@ def makemoves():
                atover(False)
                continue
            if hitme and not game.justin:
-               attack(True)
+               attack(torps_ok=True)
                if game.alldone:
                    break
                if game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova:
@@ -6813,35 +6767,38 @@ if __name__ == '__main__':
             logfp.write("# seed %s\n" % seed)
             logfp.write("# options %s\n" % " ".join(arguments))
         random.seed(seed)
-        iostart()
         if arguments:
             inqueue = arguments
         else:
             inqueue = None
-        while True: # Play a game 
-            setwnd(fullscreen_window)
-            clrscr()
-            prelim()
-            setup(needprompt=not inqueue)
-            if game.alldone:
-                score()
-                game.alldone = False
-            else:
-                makemoves()
-            skip(1)
-            stars()
+        try:
+            iostart()
+            while True: # Play a game 
+                setwnd(fullscreen_window)
+                clrscr()
+                prelim()
+                setup(needprompt=not inqueue)
+                if game.alldone:
+                    score()
+                    game.alldone = False
+                else:
+                    makemoves()
+                skip(1)
+                stars()
+                skip(1)
+                if game.tourn and game.alldone:
+                    proutn(_("Do you want your score recorded?"))
+                    if ja() == True:
+                        chew2()
+                        freeze(False)
+                chew()
+                proutn(_("Do you want to play again? "))
+                if not ja():
+                    break
             skip(1)
-            if game.tourn and game.alldone:
-                proutn(_("Do you want your score recorded?"))
-                if ja() == True:
-                    chew2()
-                    freeze(False)
-            chew()
-            proutn(_("Do you want to play again? "))
-            if not ja():
-                break
-        skip(1)
-        prout(_("May the Great Bird of the Galaxy roost upon your home planet."))
+            prout(_("May the Great Bird of the Galaxy roost upon your home planet."))
+        finally:
+            ioend()
         raise SystemExit, 0
     except KeyboardInterrupt:
         print""