ls:: horodisk mode now has a parameter controlling perfection vs density

bigstuff.cpp

@@ -2120,6 +2120,9 @@ EX void gen_temple(cell *c) {
   else c->landparam = 2;
   }
 
+/* -2 should be perfect */
+EX int horodisk_from = -2;
+
 EX void moreBigStuff(cell *c) {
   if(disable_bigstuff) return;
 
@@ -2159,14 +2162,17 @@ EX void moreBigStuff(cell *c) {
     if(have_alt(c) && hv_land[c->master->alt->alt] == laCamelot) {
       buildCamelot(c);
       }
-    else if(have_alt(c) && celldistAlt(c) <= 0) {
+    else if(have_alt(c) && celldistAlt(c) <= horodisk_from) {
       eLand l = hv_land[c->master->alt->alt];
       setland(c, l);
+      if(l == laCaribbean) generateTreasureIsland(c);
       if(l == laWhirlpool && celldistAlt(c) >= -1) {
         setland(c, laOcean);
         c->landparam = 30;
         }
-      if(l == laCaribbean) generateTreasureIsland(c);
+      if(l == laWestWall && celldistAlt(c) >= -1) {
+        setland(c, laCrossroads);
+        }
       if(isEquidLand(l)) c->landparam = 1-celldistAlt(c);
       }
     else

config.cpp

@@ -3225,6 +3225,11 @@ EX int config3 = addHook(hooks_configfile, 100, [] {
     "separate mirror images or different football types.", 'd');
   param_b(debug_voronoi, "debug_voronoi")->editable(
     "display Voronoi tie debug values", 'd');
+  param_i(horodisk_from, "horodisk_from", -2)->editable(-10, 10, 1,
+    "land size in horodisk mode",
+    "Set this to -2 to get perfect horodisks. Smaller values yield less dense horodisks, and "
+    "larger values might produce horodisks with errors or crashing into each other.", 'H');
+
   param_f(global_boundary_ratio, "global_boundary_ratio")
   ->editable(0, 5, 0.1, "Width of cell boundaries",
     "How wide should the cell boundaries be.", '0');

menus.cpp

@@ -435,6 +435,10 @@ EX void show_chaos() {
   if(casual) dialog::addInfo("(but the casual mode is on)");
 
   dialog::addBreak(100);
+  if(ls::horodisk_structure())
+    add_edit(horodisk_from);
+  else
+    dialog::addBreak(100);
   dialog::addBack();
   dialog::display();
   }