improved the automatic rotation

config.cpp

@@ -293,6 +293,7 @@ void initConfig() {
   addsaver(conformal::bandhalf, "band width");
   addsaver(conformal::bandsegment, "band segment");
   addsaver(conformal::rotation, "conformal rotation");
+  addsaver(conformal::do_rotate, "conformal rotation mode", 1);
   addsaver(conformal::autoband, "automatic band");
   addsaver(conformal::autobandhistory, "automatic band history");
   addsaver(conformal::dospiral, "do spiral");
@@ -518,10 +519,12 @@ void loadOldConfig(FILE *f) {
   conformal::autobandhistory = aa; polygonal::STAR = ps; conformal::lvspeed = lv;
   
   aa=conformal::autoband; bb=conformal::autobandhistory; cc=conformal::dospiral;    
+  int crot;
   err=fscanf(f, "%d%d%d%d%d%d", 
-    &conformal::bandhalf, &conformal::bandsegment, &conformal::rotation,
+    &conformal::bandhalf, &conformal::bandsegment, &crot,
     &aa, &bb, &cc);
   conformal::autoband = aa; conformal::autobandhistory = bb; conformal::dospiral = cc;
+  conformal::rotation = crot * 90;
   
   err=fscanf(f, "%d", &polygonal::maxcoef);
   if(polygonal::maxcoef < 0) polygonal::maxcoef = 0;

conformal.cpp

@@ -272,7 +272,8 @@ namespace conformal {
   ld lvspeed = 1;
   int bandhalf = 200;
   int bandsegment = 16000;
-  int rotation = 0;
+  ld rotation = 0;
+  int do_rotate = 1;
   bool autoband = false;
   bool autobandhistory = false;
   bool dospiral = true;
@@ -366,7 +367,7 @@ namespace conformal {
     hyperpoint next = shmup::calc_relative_matrix(v[j+1]->base, v[j]->base->master) * 
       v[j+1]->at * C0;
   
-    View = spin(M_PI/2 * rotation) * xpush(-(phase-ph) * hdist(now, next)) * View;
+    View = spin(M_PI/180 * rotation) * xpush(-(phase-ph) * hdist(now, next)) * View;
     playermoved = false;
     }
   
@@ -570,7 +571,7 @@ namespace conformal {
     }    
   
   void model_menu() {
-    cmode = sm::SIDE | sm::MAYDARK;
+    cmode = sm::SIDE | sm::MAYDARK | sm::CENTER;
     gamescreen(0);
     dialog::init(XLAT("models of hyperbolic geometry"));
     for(int i=0; i<mdGUARD; i++) {
@@ -581,6 +582,10 @@ namespace conformal {
     
     dialog::addBreak(100);
 
+    dialog::addBoolItem(XLAT("rotation"), do_rotate == 2, 'r');
+    if(do_rotate == 0) dialog::lastItem().value = XLAT("NEVER");
+    dialog::lastItem().value += " " + its(rotation) + "°";
+
     // if(pmodel == mdBand && sphere)
     dialog::addSelItem(XLAT("scale factor"), fts(vid.scale), 'z');
     
@@ -676,7 +681,15 @@ namespace conformal {
         }
       else if(sym == 'n' && pmodel == mdPolynomial)
         dialog::editNumber(polygonal::coefid, 0, polygonal::MSI-1, 1, 0, XLAT("which coefficient"), "");
-      else if(sym == 'r') rotation += (shiftmul > 0 ? 1:3);
+      else if(sym == 'r') {
+        if(rotation < 0) rotation = 0;
+        dialog::editNumber(rotation, 0, 360, 90, 0, XLAT("rotation"), 
+          "This controls the automatic rotation of the world. "
+          "It affects the line animation in the history mode, and "
+          "lands which have a special direction. Note that if finding this special direction is a part of the puzzle, "
+          "it works only in the cheat mode.");
+        dialog::dialogflags |= sm::CENTER;
+        }
       else if(doexiton(sym, uni)) popScreen();
       };
     }

dialogs.cpp

@@ -697,6 +697,13 @@ namespace dialog {
       addItem(sphere ? "towards orthographic" : "towards Gans model", 'o');
       }
     
+    if(ne.editwhat == &conformal::rotation) {
+      addBreak(100);
+      addBoolItem("line animation only", conformal::do_rotate == 0, 'n');
+      addBoolItem("gravity lands", conformal::do_rotate == 1, 'g');
+      addBoolItem("all directional lands", conformal::do_rotate == 2, 'd');
+      }
+    
     if(ne.editwhat == &ne.intbuf && ne.intval == &sightrange && cheater)
       addBoolItem("overgenerate", overgenerate, 'o');
 
@@ -747,6 +754,12 @@ namespace dialog {
           ne.inverse_scale(d * (ne.scale(ne.vmax) - ne.scale(ne.vmin)) + ne.scale(ne.vmin));
         affect('v');
         }
+      else if(uni == 'n' && ne.editwhat == &conformal::rotation)
+        conformal::do_rotate = 0;
+      else if(uni == 'g' && ne.editwhat == &conformal::rotation)
+        conformal::do_rotate = 1;
+      else if(uni == 'd' && ne.editwhat == &conformal::rotation)
+        conformal::do_rotate = 2;
       else if(uni == 'o' && ne.editwhat == &ne.intbuf && ne.intval == &sightrange && cheater)
         overgenerate = !overgenerate;
       else if(uni == 'o' && ne.editwhat == &vid.linewidth)

graph.cpp

@@ -4816,15 +4816,16 @@ void drawcell(cell *c, transmatrix V, int spinv, bool mirrored) {
       
       if(isGravityLand(cwt.c->land)) {
         if(cwt.c->land == laDungeon) rev = true;
+        if(conformal::do_rotate >= 1)
         if(!straightDownSeek || edgeDepth(c) < edgeDepth(straightDownSeek)) {
           usethis = true;
           spd = cwt.c->landparam / 10.;
           }
         }
-
+      
       if(c->master->alt && cwt.c->master->alt &&
         (cwt.c->land == laMountain || 
-        (pmodel && 
+        (conformal::do_rotate >= 2 && 
           (cwt.c->land == laTemple || cwt.c->land == laWhirlpool || 
           (cheater && (cwt.c->land == laClearing || cwt.c->land == laCaribbean ||
           cwt.c->land == laCamelot || cwt.c->land == laPalace))) 
@@ -4837,7 +4838,7 @@ void drawcell(cell *c, transmatrix V, int spinv, bool mirrored) {
           }
         }
   
-      if(pmodel && cwt.c->land == laOcean && cwt.c->landparam < 25) {
+      if(conformal::do_rotate >= 2 && cwt.c->land == laOcean && cwt.c->landparam < 25) {
         if(!straightDownSeek || coastval(c, laOcean) < coastval(straightDownSeek, laOcean)) {
           usethis = true;
           spd = cwt.c->landparam / 10;
@@ -4850,7 +4851,7 @@ void drawcell(cell *c, transmatrix V, int spinv, bool mirrored) {
         downspin = atan2(VC0[1], VC0[0]);
         downspin -= M_PI/2;
         if(rev) downspin += M_PI;
-        downspin += M_PI/2 * (conformal::rotation%4);
+        downspin += M_PI/180 * conformal::rotation;
         while(downspin < -M_PI) downspin += 2*M_PI;
         while(downspin > +M_PI) downspin -= 2*M_PI;
         downspin = downspin * min(spd, (double)1);

hyper.h

@@ -897,7 +897,8 @@ namespace conformal {
   extern vector<pair<cell*, eItem> > findhistory;  
   extern vector<cell*> movehistory;
   extern bool includeHistory;
-  extern int rotation;
+  extern ld rotation;
+  extern int do_rotate;
   extern bool autoband;
   extern bool autobandhistory;
   extern bool dospiral;

hypgraph.cpp

@@ -549,11 +549,9 @@ void centerpc(ld aspd) {
   if(vid.sspeed >= 4.99) aspd = 1000;
   DEBB(DF_GRAPH, (debugfile,"center pc\n"));
   hyperpoint H = ypush(-vid.yshift) * sphereflip * tC0(cwtV);
-  if(H[0] == 0 && H[1] == 0) {
-    return; // either already centered or direction unknown
-    }
-  ld R = hdist0(H); // = sqrt(H[0] * H[0] + H[1] * H[1]);
+  ld R = H[0] == 0 && H[1] == 0 ? 0 : hdist0(H); // = sqrt(H[0] * H[0] + H[1] * H[1]);
   if(R < 1e-9) {
+    // either already centered or direction unknown
     /* if(playerfoundL && playerfoundR) {
       
       } */

language-pl.cpp

@@ -6834,3 +6834,17 @@ S("The larger the number, the more twisted it is.",
 // parameter for concave barrel
 S("Controls the inner radius.", "Określa promień wewnętrzny.")
 
+// improved rotation
+S(
+  "This controls the automatic rotation of the world. "
+  "It affects the line animation in the history mode, and "
+  "lands which have a special direction. Note that if finding this special direction is a part of the puzzle, "
+  "it works only in the cheat mode.",
+  
+  "To ustawienie steruje automatycznym obracaniem świata. "
+  "Ma wpływ na animację linii (tryb historii) i "
+  "krainy ze szczególnym kierunkiem. Jeśli znalezienie "
+  "tego szczególnego kierunku jest częścią zadania gracza, "
+  "opcja ta działa tylko w trybie oszusta."
+  );
+S("NEVER", "NIGDY")

system.cpp

@@ -265,6 +265,7 @@ void initgame() {
   lastsafety = gold();
   bfs();
   checkmove();
+  playermoved = true;
   }
 
 bool havesave = true;