Introduce 'coord' data structure, an (x,y) tuple.
[super-star-trek.git] / src / events.c
index 7b915f22e28f45b3119f74d3c6c0013da5b74ed6..f5aed2e75f49039b022da27260cdf7de82bdde7a 100644 (file)
@@ -99,7 +99,7 @@ void events(void)
            ipage=1;
            snova(0,0);
            schedule(FSNOVA, expran(0.5*game.intime));
-           if (game.state.galaxy[game.quadx][game.quady].supernova) return;
+           if (game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova) return;
            break;
        case FSPY: /* Check with spy to see if S.C. should tractor beam */
            if (game.state.nscrem == 0 ||
@@ -113,7 +113,7 @@ void events(void)
                 (game.torps < 5 || game.damage[DPHOTON] > 0))) {
                /* Tractor-beam her! */
                istract=1;
-               yank = square(game.state.isx-game.quadx) + square(game.state.isy-game.quady);
+               yank = square(game.state.kscmdr.x-game.quadrant.x) + square(game.state.kscmdr.y-game.quadrant.y);
                /********* fall through to FTBEAM code ***********/
            }
            else return;
@@ -124,7 +124,7 @@ void events(void)
                    break;
                }
                i = Rand()*game.state.remcom+1.0;
-               yank = square(game.state.cx[i]-game.quadx) + square(game.state.cy[i]-game.quady);
+               yank = square(game.state.kcmdr[i].x-game.quadrant.x) + square(game.state.kcmdr[i].y-game.quadrant.y);
                if (istract || game.condit == IHDOCKED || yank == 0) {
                    /* Drats! Have to reschedule */
                    schedule(FTBEAM, 
@@ -163,19 +163,19 @@ void events(void)
                }
            }
            if (line==0) {
-               game.quadx = game.state.isx;
-               game.quady = game.state.isy;
+               game.quadrant.x = game.state.kscmdr.x;
+               game.quadrant.y = game.state.kscmdr.y;
            }
            else {
-               game.quadx = game.state.cx[i];
-               game.quady = game.state.cy[i];
+               game.quadrant.x = game.state.kcmdr[i].x;
+               game.quadrant.y = game.state.kcmdr[i].y;
            }
-           iran(QUADSIZE, &game.sectx, &game.secty);
+           iran(QUADSIZE, &game.sector.x, &game.sector.y);
            crmshp();
            proutn(_(" is pulled to "));
-           proutn(cramlc(quadrant, game.quadx, game.quady));
+           proutn(cramlc(quadrant, game.quadrant));
            proutn(", ");
-           prout(cramlc(sector, game.sectx, game.secty));
+           prout(cramlc(sector, game.sector));
            if (game.resting) {
                prout(_("(Remainder of rest/repair period cancelled.)"));
                game.resting = 0;
@@ -209,9 +209,9 @@ void events(void)
            i = 0;
            for_starbases(j) {
                for_commanders(k)
-                   if (game.state.baseqx[j]==game.state.cx[k] && game.state.baseqy[j]==game.state.cy[k] &&
-                       (game.state.baseqx[j]!=game.quadx || game.state.baseqy[j]!=game.quady) &&
-                       (game.state.baseqx[j]!=game.state.isx || game.state.baseqy[j]!=game.state.isy)) {
+                   if (game.state.baseq[j].x==game.state.kcmdr[k].x && game.state.baseq[j].y==game.state.kcmdr[k].y &&
+                       (game.state.baseq[j].x!=game.quadrant.x || game.state.baseq[j].y!=game.quadrant.y) &&
+                       (game.state.baseq[j].x!=game.state.kscmdr.x || game.state.baseq[j].y!=game.state.kscmdr.y)) {
                        i = 1;
                        break;
                    }
@@ -224,8 +224,8 @@ void events(void)
                break;
            }
            /* commander + starbase combination found -- launch attack */
-           game.batx = game.state.baseqx[j];
-           game.baty = game.state.baseqy[j];
+           game.battle.x = game.state.baseq[j].x;
+           game.battle.y = game.state.baseq[j].y;
            schedule(FCDBAS, 1.0+3.0*Rand());
            if (game.isatb) /* extra time if SC already attacking */
                postpone(FCDBAS, scheduled(FSCDBAS)-game.state.date);
@@ -238,7 +238,7 @@ void events(void)
            ipage = 1;
            skip(1);
            proutn(_("Lt. Uhura-  \"Captain, the starbase in "));
-           prout(cramlc(quadrant, game.batx, game.baty));
+           prout(cramlc(quadrant, game.battle));
            prout(_("   reports that it is under attack and that it can"));
            proutn(_("   hold out only until stardate %d"),
                   (int)scheduled(FCDBAS));
@@ -256,33 +256,33 @@ void events(void)
        case FSCDBAS: /* Supercommander destroys base */
            unschedule(FSCDBAS);
            game.isatb = 2;
-           if (!game.state.galaxy[game.state.isx][game.state.isy].starbase) 
+           if (!game.state.galaxy[game.state.kscmdr.x][game.state.kscmdr.y].starbase) 
                break; /* WAS RETURN! */
-           ixhold = game.batx;
-           iyhold = game.baty;
-           game.batx = game.state.isx;
-           game.baty = game.state.isy;
+           ixhold = game.battle.x;
+           iyhold = game.battle.y;
+           game.battle.x = game.state.kscmdr.x;
+           game.battle.y = game.state.kscmdr.y;
        case FCDBAS: /* Commander succeeds in destroying base */
            if (line==FCDBAS) {
                unschedule(FCDBAS);
                /* find the lucky pair */
                for_commanders(i)
-                   if (game.state.cx[i]==game.batx && game.state.cy[i]==game.baty) 
+                   if (game.state.kcmdr[i].x==game.battle.x && game.state.kcmdr[i].y==game.battle.y) 
                        break;
                if (i > game.state.remcom || game.state.rembase == 0 ||
-                   !game.state.galaxy[game.batx][game.baty].starbase) {
+                   !game.state.galaxy[game.battle.x][game.battle.y].starbase) {
                    /* No action to take after all */
-                   game.batx = game.baty = 0;
+                   game.battle.x = game.battle.y = 0;
                    break;
                }
            }
            /* Code merges here for any commander destroying base */
            /* Not perfect, but will have to do */
            /* Handle case where base is in same quadrant as starship */
-           if (game.batx==game.quadx && game.baty==game.quady) {
-               game.state.chart[game.batx][game.baty].starbase = FALSE;
-               game.quad[game.basex][game.basey]= IHDOT;
-               game.basex=game.basey=0;
+           if (game.battle.x==game.quadrant.x && game.battle.y==game.quadrant.y) {
+               game.state.chart[game.battle.x][game.battle.y].starbase = FALSE;
+               game.quad[game.base.x][game.base.y]= IHDOT;
+               game.base.x=game.base.y=0;
                newcnd();
                skip(1);
                prout(_("Spock-  \"Captain, I believe the starbase has been destroyed.\""));
@@ -295,28 +295,28 @@ void events(void)
                skip(1);
                prout(_("Lt. Uhura-  \"Captain, Starfleet Command reports that"));
                proutn(_("   the starbase in "));
-               proutn(cramlc(quadrant, game.batx, game.baty));
+               proutn(cramlc(quadrant, game.battle));
                prout(_(" has been destroyed by"));
                if (game.isatb==2) prout(_("the Klingon Super-Commander"));
                else prout(_("a Klingon Commander"));
-               game.state.chart[game.batx][game.baty].starbase = FALSE;
+               game.state.chart[game.battle.x][game.battle.y].starbase = FALSE;
            }
            /* Remove Starbase from galaxy */
-           game.state.galaxy[game.batx][game.baty].starbase = FALSE;
+           game.state.galaxy[game.battle.x][game.battle.y].starbase = FALSE;
            for_starbases(i)
-               if (game.state.baseqx[i]==game.batx && game.state.baseqy[i]==game.baty) {
-                   game.state.baseqx[i]=game.state.baseqx[game.state.rembase];
-                   game.state.baseqy[i]=game.state.baseqy[game.state.rembase];
+               if (game.state.baseq[i].x==game.battle.x && game.state.baseq[i].y==game.battle.y) {
+                   game.state.baseq[i].x=game.state.baseq[game.state.rembase].x;
+                   game.state.baseq[i].y=game.state.baseq[game.state.rembase].y;
                }
            game.state.rembase--;
            if (game.isatb == 2) {
                /* reinstate a commander's base attack */
-               game.batx = ixhold;
-               game.baty = iyhold;
+               game.battle.x = ixhold;
+               game.battle.y = iyhold;
                game.isatb = 0;
            }
            else {
-               game.batx = game.baty = 0;
+               game.battle.x = game.battle.y = 0;
            }
            break;
        case FSCMOVE: /* Supercommander moves */
@@ -331,11 +331,11 @@ void events(void)
            game.probey += game.probeiny;
            i = (int)(game.probex/QUADSIZE +0.05);
            j = (int)(game.probey/QUADSIZE + 0.05);
-           if (game.probecx != i || game.probecy != j) {
-               game.probecx = i;
-               game.probecy = j;
+           if (game.probec.x != i || game.probec.y != j) {
+               game.probec.x = i;
+               game.probec.y = j;
                if (!VALID_QUADRANT(i, j) ||
-                   game.state.galaxy[game.probecx][game.probecy].supernova) {
+                   game.state.galaxy[game.probec.x][game.probec.y].supernova) {
                    // Left galaxy or ran into supernova
                    if (game.damage[DRADIO]==0.0 || game.condit == IHDOCKED) {
                        if (ipage==0) pause_game(1);
@@ -356,25 +356,25 @@ void events(void)
                    ipage = 1;
                    skip(1);
                    proutn(_("Lt. Uhura-  \"The deep space probe is now in "));
-                   proutn(cramlc(quadrant, game.probecx, game.probecy));
+                   proutn(cramlc(quadrant, game.probec));
                    prout(".\"");
                }
            }
            /* Update star chart if Radio is working or have access to
               radio. */
            if (game.damage[DRADIO] == 0.0 || game.condit == IHDOCKED) {
-               game.state.chart[game.probecx][game.probecy].klingons = game.state.galaxy[game.probecx][game.probecy].klingons;
-               game.state.chart[game.probecx][game.probecy].starbase = game.state.galaxy[game.probecx][game.probecy].starbase;
-               game.state.chart[game.probecx][game.probecy].stars = game.state.galaxy[game.probecx][game.probecy].stars;
-               game.state.galaxy[game.probecx][game.probecy].charted = TRUE;
+               game.state.chart[game.probec.x][game.probec.y].klingons = game.state.galaxy[game.probec.x][game.probec.y].klingons;
+               game.state.chart[game.probec.x][game.probec.y].starbase = game.state.galaxy[game.probec.x][game.probec.y].starbase;
+               game.state.chart[game.probec.x][game.probec.y].stars = game.state.galaxy[game.probec.x][game.probec.y].stars;
+               game.state.galaxy[game.probec.x][game.probec.y].charted = TRUE;
            }
            game.proben--; // One less to travel
            if (game.proben == 0 && game.isarmed &&
-               game.state.galaxy[game.probecx][game.probecy].stars) {
+               game.state.galaxy[game.probec.x][game.probec.y].stars) {
                /* lets blow the sucker! */
                snova(1,0);
                unschedule(FDSPROB);
-               if (game.state.galaxy[game.quadx][game.quady].supernova) 
+               if (game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova) 
                    return;
            }
            break;
@@ -389,12 +389,12 @@ void events(void)
            for (i = 0; i < 100; i++) {
                struct quadrant *q;
                iran(GALSIZE, &ix, &iy);
-               q = &game.state.galaxy[game.quadx][game.quady];
+               q = &game.state.galaxy[game.quadrant.x][game.quadrant.y];
                /* need a quadrant which is not the current one,
                   which has some stars which are inhabited and
                   not already under attack, which is not
                   supernova'ed, and which has some Klingons in it */
-               if (!((ix == game.quadx && iy == game.quady) || q->stars<=0 ||
+               if (!((ix == game.quadrant.x && iy == game.quadrant.y) || q->stars<=0 ||
                      (q->qsystemname & Q_DISTRESSED) ||
                      (q->qsystemname & Q_SYSTEM) == 0 || q->klings <= 0))
                    break;
@@ -487,7 +487,7 @@ void events(void)
            }
            /* deliver the child */
            game.remkl++;
-           if (ix == game.quadx && iy == game.quady)
+           if (ix == game.quadrant.x && iy == game.quadrant.y)
                newkling(++game.klhere, &ixhold, &iyhold);
 
            /* recompute time left */
@@ -549,7 +549,7 @@ void wait(void)
            game.damage[DDRAY] = 0.0;
     } while 
        // leave if quadrant supernovas
-       (!game.state.galaxy[game.quadx][game.quady].supernova);
+       (!game.state.galaxy[game.quadrant.x][game.quadrant.y].supernova);
 
     game.resting = 0;
     game.optime = 0;
@@ -560,7 +560,10 @@ void nova(int ix, int iy)
     static double course[] =
        {0.0, 10.5, 12.0, 1.5, 9.0, 0.0, 3.0, 7.5, 6.0, 4.5};
     int bot, top, top2, hits[QUADSIZE+1][3], kount, icx, icy, mm, nn, j;
-    int iquad, iquad1, i, ll, newcx, newcy, ii, jj;
+    int iquad, iquad1, i, ll;
+    coord newc, nov, scratch;
+
+    nov.x = ix; nov.y = iy;
     if (Rand() < 0.05) {
        /* Wow! We've supernova'ed */
        snova(ix, iy);
@@ -569,9 +572,9 @@ void nova(int ix, int iy)
 
     /* handle initial nova */
     game.quad[ix][iy] = IHDOT;
-    crmena(1, IHSTAR, 2, ix, iy);
+    crmena(1, IHSTAR, 2, nov);
     prout(_(" novas."));
-    game.state.galaxy[game.quadx][game.quady].stars--;
+    game.state.galaxy[game.quadrant.x][game.quadrant.y].stars--;
     game.state.starkl++;
        
     /* Set up stack to recursively trigger adjacent stars */
@@ -585,10 +588,10 @@ void nova(int ix, int iy)
            for (nn = 1; nn <= 3; nn++)  /* nn,j represents coordinates around current */
                for (j = 1; j <= 3; j++) {
                    if (j==2 && nn== 2) continue;
-                   ii = hits[mm][1]+nn-2;
-                   jj = hits[mm][2]+j-2;
-                   if (!VALID_SECTOR(jj, ii)) continue;
-                   iquad = game.quad[ii][jj];
+                   scratch.x = hits[mm][1]+nn-2;
+                   scratch.y = hits[mm][2]+j-2;
+                   if (!VALID_SECTOR(scratch.y, scratch.x)) continue;
+                   iquad = game.quad[scratch.x][scratch.y];
                    switch (iquad) {
                    // case IHDOT:      /* Empty space ends reaction
                    // case IHQUEST:
@@ -600,45 +603,44 @@ void nova(int ix, int iy)
                    case IHSTAR: /* Affect another star */
                        if (Rand() < 0.05) {
                            /* This star supernovas */
-                           snova(ii,jj);
+                           snova(scratch.x,scratch.y);
                            return;
                        }
                        top2++;
-                       hits[top2][1]=ii;
-                       hits[top2][2]=jj;
-                       game.state.galaxy[game.quadx][game.quady].stars -= 1;
+                       hits[top2][1]=scratch.x;
+                       hits[top2][2]=scratch.y;
+                       game.state.galaxy[game.quadrant.x][game.quadrant.y].stars -= 1;
                        game.state.starkl++;
-                       crmena(1, IHSTAR, 2, ii, jj);
+                       crmena(1, IHSTAR, 2, scratch);
                        prout(_(" novas."));
-                       game.quad[ii][jj] = IHDOT;
+                       game.quad[scratch.x][scratch.y] = IHDOT;
                        break;
                    case IHP: /* Destroy planet */
-                       game.state.galaxy[game.quadx][game.quady].planet = NULL;
+                       game.state.galaxy[game.quadrant.x][game.quadrant.y].planet = NULL;
                        game.state.nplankl++;
-                       crmena(1, IHP, 2, ii, jj);
+                       crmena(1, IHP, 2, scratch);
                        prout(_(" destroyed."));
                        DESTROY(&game.state.plnets[game.iplnet]);
-                       game.iplnet = game.plnetx = game.plnety = 0;
+                       game.iplnet = game.plnet.x = game.plnet.y = 0;
                        if (game.landed == 1) {
                            finish(FPNOVA);
                            return;
                        }
-                       game.quad[ii][jj] = IHDOT;
+                       game.quad[scratch.x][scratch.y] = IHDOT;
                        break;
                    case IHB: /* Destroy base */
-                       game.state.galaxy[game.quadx][game.quady].starbase = FALSE;
+                       game.state.galaxy[game.quadrant.x][game.quadrant.y].starbase = FALSE;
                        for_starbases(i)
-                           if (game.state.baseqx[i]==game.quadx && game.state.baseqy[i]==game.quady) 
+                           if (game.state.baseq[i].x==game.quadrant.x && game.state.baseq[i].y==game.quadrant.y) 
                                break;
-                       game.state.baseqx[i] = game.state.baseqx[game.state.rembase];
-                       game.state.baseqy[i] = game.state.baseqy[game.state.rembase];
+                       game.state.baseq[i] = game.state.baseq[game.state.rembase];
                        game.state.rembase--;
-                       game.basex = game.basey = 0;
+                       game.base.x = game.base.y = 0;
                        game.state.basekl++;
                        newcnd();
-                       crmena(1, IHB, 2, ii, jj);
+                       crmena(1, IHB, 2, scratch);
                        prout(_(" destroyed."));
-                       game.quad[ii][jj] = IHDOT;
+                       game.quad[scratch.x][scratch.y] = IHDOT;
                        break;
                    case IHE: /* Buffet ship */
                    case IHF:
@@ -660,38 +662,38 @@ void nova(int ix, int iy)
                            return;
                        }
                        /* add in course nova contributes to kicking starship*/
-                       icx += game.sectx-hits[mm][1];
-                       icy += game.secty-hits[mm][2];
+                       icx += game.sector.x-hits[mm][1];
+                       icy += game.sector.y-hits[mm][2];
                        kount++;
                        break;
                    case IHK: /* kill klingon */
-                       deadkl(ii,jj,iquad, ii, jj);
+                       deadkl(scratch.x,scratch.y,iquad, scratch.x, scratch.y);
                        break;
                    case IHC: /* Damage/destroy big enemies */
                    case IHS:
                    case IHR:
                        for_local_enemies(ll)
-                           if (game.kx[ll]==ii && game.ky[ll]==jj) break;
+                           if (game.ks[ll].x==scratch.x && game.ks[ll].y==scratch.y) break;
                        game.kpower[ll] -= 800.0; /* If firepower is lost, die */
                        if (game.kpower[ll] <= 0.0) {
-                           deadkl(ii, jj, iquad, ii, jj);
+                           deadkl(scratch.x, scratch.y, iquad, scratch.x, scratch.y);
                            break;
                        }
-                       newcx = ii + ii - hits[mm][1];
-                       newcy = jj + jj - hits[mm][2];
-                       crmena(1, iquad, 2, ii, jj);
+                       newc.x = scratch.x + scratch.x - hits[mm][1];
+                       newc.y = scratch.y + scratch.y - hits[mm][2];
+                       crmena(1, iquad, 2, scratch);
                        proutn(_(" damaged"));
-                       if (!VALID_SECTOR(newcx, newcy)) {
+                       if (!VALID_SECTOR(newc.x, newc.y)) {
                            /* can't leave quadrant */
                            skip(1);
                            break;
                        }
-                       iquad1 = game.quad[newcx][newcy];
+                       iquad1 = game.quad[newc.x][newc.y];
                        if (iquad1 == IHBLANK) {
                            proutn(_(", blasted into "));
-                           crmena(0, IHBLANK, 2, newcx, newcy);
+                           crmena(0, IHBLANK, 2, newc);
                            skip(1);
-                           deadkl(ii, jj, iquad, newcx, newcy);
+                           deadkl(scratch.x, scratch.y, iquad, newc.x, newc.y);
                            break;
                        }
                        if (iquad1 != IHDOT) {
@@ -700,12 +702,12 @@ void nova(int ix, int iy)
                            break;
                        }
                        proutn(_(", buffeted to "));
-                       proutn(cramlc(sector, newcx, newcy));
-                       game.quad[ii][jj] = IHDOT;
-                       game.quad[newcx][newcy] = iquad;
-                       game.kx[ll] = newcx;
-                       game.ky[ll] = newcy;
-                       game.kavgd[ll] = sqrt(square(game.sectx-newcx)+square(game.secty-newcy));
+                       proutn(cramlc(sector, newc));
+                       game.quad[scratch.x][scratch.y] = IHDOT;
+                       game.quad[newc.x][newc.y] = iquad;
+                       game.ks[ll].x = newc.x;
+                       game.ks[ll].y = newc.y;
+                       game.kavgd[ll] = sqrt(square(game.sector.x-newc.x)+square(game.sector.y-newc.y));
                        game.kdist[ll] = game.kavgd[ll];
                        skip(1);
                        break;
@@ -738,34 +740,34 @@ void nova(int ix, int iy)
        
 void snova(int insx, int insy) 
 {
-    int comdead, nqx=0, nqy=0, nsx, nsy, num=0, kldead, iscdead;
+    int comdead, nsx, nsy, num=0, kldead, iscdead;
     int nrmdead, npdead;
     int incipient=0;
+    coord nq;
 
+    nq.x = nq.y = 0;
     nsx = insy;
     nsy = insy;
 
     if (insy== 0) {
-       if (insx == 1) {
+       if (insx == 1)
            /* NOVAMAX being used */
-           nqx = game.probecx;
-           nqy = game.probecy;
-       }
+           nq = game.probec;
        else {
            int stars = 0;
            /* Scheduled supernova -- select star */
            /* logic changed here so that we won't favor quadrants in top
               left of universe */
-           for_quadrants(nqx) {
-               for_quadrants(nqy) {
-                   stars += game.state.galaxy[nqx][nqy].stars;
+           for_quadrants(nq.x) {
+               for_quadrants(nq.y) {
+                   stars += game.state.galaxy[nq.x][nq.y].stars;
                }
            }
            if (stars == 0) return; /* nothing to supernova exists */
            num = Rand()*stars + 1;
-           for_quadrants(nqx) {
-               for_quadrants(nqy) {
-                   num -= game.state.galaxy[nqx][nqy].stars;
+           for_quadrants(nq.x) {
+               for_quadrants(nq.y) {
+                   num -= game.state.galaxy[nq.x][nq.y].stars;
                    if (num <= 0) break;
                }
                if (num <=0) break;
@@ -774,26 +776,26 @@ void snova(int insx, int insy)
            if (game.idebug) {
                proutn("Super nova here?");
                if (ja()==1) {
-                   nqx = game.quadx;
-                   nqy = game.quady;
+                   nq.x = game.quadrant.x;
+                   nq.y = game.quadrant.y;
                }
            }
 #endif
        }
 
-       if (nqx != game.quady || nqy != game.quady || game.justin != 0) {
+       if (nq.x != game.quadrant.y || nq.y != game.quadrant.y || game.justin != 0) {
            /* it isn't here, or we just entered (treat as inroute) */
            if (game.damage[DRADIO] == 0.0 || game.condit == IHDOCKED) {
                skip(1);
                prout(_("Message from Starfleet Command       Stardate %.2f"), game.state.date);
                prout(_("     Supernova in %s; caution advised."),
-                     cramlc(quadrant, nqx, nqy));
+                     cramlc(quadrant, nq));
            }
        }
        else {
            /* we are in the quadrant! */
            incipient = 1;
-           num = Rand()* game.state.galaxy[nqx][nqy].stars + 1;
+           num = Rand()* game.state.galaxy[nq.x][nq.y].stars + 1;
            for_sectors(nsx) {
                for_sectors(nsy) {
                    if (game.quad[nsx][nsy]==IHSTAR) {
@@ -810,13 +812,14 @@ void snova(int insx, int insy)
     }
 
     if (incipient) {
+       coord nd;
        skip(1);
        prouts(_("***RED ALERT!  RED ALERT!"));
        skip(1);
-       prout(_("***Incipient supernova detected at "), cramlc(sector, nsx, nsy));
-       nqx = game.quadx;
-       nqy = game.quady;
-       if (square(nsx-game.sectx) + square(nsy-game.secty) <= 2.1) {
+       nd.x = nsx; nd.y = nsy;
+       prout(_("***Incipient supernova detected at "), cramlc(sector, nd));
+       nq = game.quadrant;
+       if (square(nsx-game.sector.x) + square(nsy-game.sector.y) <= 2.1) {
            proutn(_("Emergency override attempts t"));
            prouts("***************");
            skip(1);
@@ -825,12 +828,12 @@ void snova(int insx, int insy)
        }
     }
     /* destroy any Klingons in supernovaed quadrant */
-    kldead = game.state.galaxy[nqx][nqy].klingons;
-    game.state.galaxy[nqx][nqy].klingons = 0;
+    kldead = game.state.galaxy[nq.x][nq.y].klingons;
+    game.state.galaxy[nq.x][nq.y].klingons = 0;
     comdead = iscdead = 0;
-    if (nqx==game.state.isx && nqy == game.state.isy) {
+    if (same(nq, game.state.kscmdr)) {
        /* did in the Supercommander! */
-       game.state.nscrem = game.state.isx = game.state.isy = game.isatb = game.iscate = 0;
+       game.state.nscrem = game.state.kscmdr.x = game.state.kscmdr.y = game.isatb = game.iscate = 0;
        iscdead = 1;
        unschedule(FSCMOVE);
        unschedule(FSCDBAS);
@@ -838,10 +841,9 @@ void snova(int insx, int insy)
     if (game.state.remcom) {
        int maxloop = game.state.remcom, l;
        for (l = 1; l <= maxloop; l++) {
-           if (game.state.cx[l] == nqx && game.state.cy[l] == nqy) {
-               game.state.cx[l] = game.state.cx[game.state.remcom];
-               game.state.cy[l] = game.state.cy[game.state.remcom];
-               game.state.cx[game.state.remcom] = game.state.cy[game.state.remcom] = 0;
+           if (same(game.state.kcmdr[l], nq)) {
+               game.state.kcmdr[l] = game.state.kcmdr[game.state.remcom];
+               game.state.kcmdr[game.state.remcom].x = game.state.kcmdr[game.state.remcom].y = 0;
                game.state.remcom--;
                kldead--;
                comdead++;
@@ -852,14 +854,14 @@ void snova(int insx, int insy)
     }
     game.state.remkl -= kldead;
     /* destroy Romulans and planets in supernovaed quadrant */
-    nrmdead = game.state.galaxy[nqx][nqy].romulans;
-    game.state.galaxy[nqx][nqy].romulans = 0;
+    nrmdead = game.state.galaxy[nq.x][nq.y].romulans;
+    game.state.galaxy[nq.x][nq.y].romulans = 0;
     game.state.nromrem -= nrmdead;
     npdead = num - nrmdead*10;
     if (npdead) {
        int l;
        for (l = 0; l < game.inplan; l++)
-           if (game.state.plnets[l].x == nqx && game.state.plnets[l].y == nqy) {
+           if (same(game.state.plnets[l].w, nq)) {
                DESTROY(&game.state.plnets[l]);
            }
     }
@@ -867,31 +869,30 @@ void snova(int insx, int insy)
     if (game.state.rembase) {
        int maxloop = game.state.rembase, l;
        for (l = 1; l <= maxloop; l++)
-           if (game.state.baseqx[l]==nqx && game.state.baseqy[l]==nqy) {
-               game.state.baseqx[l] = game.state.baseqx[game.state.rembase];
-               game.state.baseqy[l] = game.state.baseqy[game.state.rembase];
-               game.state.baseqx[game.state.rembase] = game.state.baseqy[game.state.rembase] = 0;
+           if (same(game.state.baseq[l], nq)) {
+               game.state.baseq[l] = game.state.baseq[game.state.rembase];
+               game.state.baseq[game.state.rembase].x = game.state.baseq[game.state.rembase].y = 0;
                game.state.rembase--;
                break;
            }
     }
     /* If starship caused supernova, tally up destruction */
     if (insx) {
-       game.state.starkl += game.state.galaxy[nqx][nqy].stars;
-       game.state.basekl += game.state.galaxy[nqx][nqy].starbase;
+       game.state.starkl += game.state.galaxy[nq.x][nq.y].stars;
+       game.state.basekl += game.state.galaxy[nq.x][nq.y].starbase;
        game.state.nplankl += npdead;
     }
     /* mark supernova in galaxy and in star chart */
-    if ((game.quadx == nqx && game.quady == nqy) ||
+    if ((game.quadrant.x == nq.x && game.quadrant.y == nq.y) ||
        game.damage[DRADIO] == 0 ||
        game.condit == IHDOCKED)
-       game.state.galaxy[nqx][nqy].supernova = TRUE;
+       game.state.galaxy[nq.x][nq.y].supernova = TRUE;
     /* If supernova destroys last klingons give special message */
-    if (KLINGREM==0 && (nqx != game.quadx || nqy != game.quady)) {
+    if (KLINGREM==0 && (nq.x != game.quadrant.x || nq.y != game.quadrant.y)) {
        skip(2);
        if (insx == 0) prout(_("Lucky you!"));
        proutn(_("A supernova in %s has just destroyed the last Klingons."),
-              cramlc(quadrant, nqx, nqy));
+              cramlc(quadrant, nq));
        finish(FWON);
        return;
     }