From ac680b39c2f5df5b3b789adc8542ee34e83161b0 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Fri, 9 Aug 2019 15:07:43 +0200
Subject: [PATCH] started using auto-header generator

---
 binary-tiling.cpp | 81 ++++++++++++++++++++++------------------------
 hyper.h           | 19 +++--------
 makeh.cpp         | 82 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 126 insertions(+), 56 deletions(-)
 create mode 100644 makeh.cpp

diff --git a/binary-tiling.cpp b/binary-tiling.cpp
index 6b5a4901..5a4d0a07 100644
--- a/binary-tiling.cpp
+++ b/binary-tiling.cpp
@@ -5,8 +5,8 @@
 
 namespace hr {
 
-namespace binary {
-#if CAP_BT
+EX namespace binary {
+#if EX CAP_BT
 
   enum bindir {
     bd_right = 0,
@@ -19,12 +19,12 @@ namespace binary {
     bd_down_right = 6 /* for cells of degree 7 */
     };
   
-  int type_of(heptagon *h) {
+  EX int type_of(heptagon *h) {
     return h->c7->type;
     }
 
   // 0 - central, -1 - left, +1 - right
-  int mapside(heptagon *h) {
+  EX int mapside(heptagon *h) {
     return h->zebraval;
     }
   
@@ -50,10 +50,7 @@ namespace binary {
     exit(1);
     }
 
-  const transmatrix& tmatrix(heptagon *h, int dir);
-  const transmatrix& itmatrix(heptagon *h, int dir);
-  
-  heptagon *path(heptagon *h, int d, int d1, std::initializer_list<int> p) {
+  EX heptagon *path(heptagon *h, int d, int d1, std::initializer_list<int> p) {
     static int rec = 0;
     rec++; if(rec>100) exit(1);
     // printf("{generating path from %p (%d/%d) dir %d:", h, type_of(h), mapside(h), d);
@@ -84,16 +81,16 @@ namespace binary {
     return h1;
     }
 
-  heptagon *pathc(heptagon *h, int d, int d1, std::vector<std::initializer_list<int>> p) {
+  EX heptagon *pathc(heptagon *h, int d, int d1, std::vector<std::initializer_list<int>> p) {
     h->cmove(S7-1);
     int z = h->c.spin(S7-1);
     return path(h, d, d1, p[z]);
     }
     
-  ld hororec_scale = 0.25;
-  ld horohex_scale = 0.6;
+  EX ld hororec_scale = 0.25;
+  EX ld horohex_scale = 0.6;
   
-  void make_binary_lands(heptagon *parent, heptagon *h) {
+  EX void make_binary_lands(heptagon *parent, heptagon *h) {
     if(!parent->emeraldval) parent->emeraldval = currentmap->gamestart()->land;
     eLand z = eLand(parent->emeraldval);
     int chance = 0;
@@ -110,7 +107,7 @@ namespace binary {
       h->emeraldval = z;
     }
   
-  heptagon *build(heptagon *parent, int d, int d1, int t, int side, int delta) {
+  EX heptagon *build(heptagon *parent, int d, int d1, int t, int side, int delta) {
     auto h = buildHeptagon1(tailored_alloc<heptagon> (t), parent, d, hsA, d1);
     h->distance = parent->distance + delta;
     h->dm4 = parent->dm4 + delta;
@@ -138,7 +135,7 @@ namespace binary {
     }
 
   #if MAXMDIM==4
-  heptagon *build3(heptagon *parent, int d, int d1, int delta) {
+  EX heptagon *build3(heptagon *parent, int d, int d1, int delta) {
     int side = 0;
     if(geometry == gBinary3) {
       if(d < 4) side = (parent->zebraval * 2 + d) % 5;
@@ -468,7 +465,7 @@ namespace binary {
       }
     };
 
-  hrmap *new_map() { return new hrmap_binary; }
+  EX hrmap *new_map() { return new hrmap_binary; }
   
   struct hrmap_alternate_binary : hrmap_binary {
     heptagon *origin;
@@ -476,7 +473,7 @@ namespace binary {
     ~hrmap_alternate_binary() { clearfrom(origin); }
     };
 
-  hrmap *new_alt_map(heptagon *o) { return new hrmap_binary(o); }
+  EX hrmap *new_alt_map(heptagon *o) { return new hrmap_binary(o); }
 
   transmatrix direct_tmatrix[14];
   transmatrix inverse_tmatrix[14];
@@ -485,11 +482,11 @@ namespace binary {
   // directions in the 'use_direct' mask are taken from direct_tmatrix;
   // directions at/above are taken by checking spin and inverse_tmatrix based on that
 
-  bool use_direct_for(int dir) {
+  EX bool use_direct_for(int dir) {
     return (use_direct >> dir) & 1;
     }
   
-  ld expansion() {
+  EX ld expansion() {
     switch(geometry) {
       case gHoroRec:
         return sqrt(2);
@@ -502,14 +499,14 @@ namespace binary {
       }
     }
   
-  int updir() {
+  EX int updir() {
     if(geometry == gBinary4) return 3;
     if(geometry == gBinaryTiling) return 5;
     if(penrose) return 0;
     return S7-1;
     }
   
-  void build_tmatrix() {
+  EX void build_tmatrix() {
     if(among(geometry, gBinaryTiling, gSol)) return; // unused
     use_direct = (1 << (S7-1)) - 1;
     if(geometry == gBinary4) {
@@ -579,7 +576,7 @@ namespace binary {
       inverse_tmatrix[i] = inverse(direct_tmatrix[i]);
     }
   
-  const transmatrix& tmatrix(heptagon *h, int dir) {
+  EX const transmatrix& tmatrix(heptagon *h, int dir) {
     if(use_direct_for(dir))
       return direct_tmatrix[dir];
     else {
@@ -588,7 +585,7 @@ namespace binary {
       }
     }
 
-  const transmatrix& itmatrix(heptagon *h, int dir) {
+  EX const transmatrix& itmatrix(heptagon *h, int dir) {
     if(use_direct_for(dir))
       return inverse_tmatrix[dir];
     else {
@@ -599,7 +596,7 @@ namespace binary {
   
   #if MAXMDIM == 4
 
-  void queuecube(const transmatrix& V, ld size, color_t linecolor, color_t facecolor) {
+  EX void queuecube(const transmatrix& V, ld size, color_t linecolor, color_t facecolor) {
     ld yy = log(2) / 2;
     const int STEP=3;
     const ld MUL = 1. / STEP;
@@ -632,17 +629,17 @@ namespace binary {
     }
   #endif
 
-  transmatrix parabolic(ld u) {
+  EX transmatrix parabolic(ld u) {
     return parabolic1(u * vid.binary_width / log(2) / 2);
     }
 
-  transmatrix parabolic3(ld y, ld z) {
+  EX transmatrix parabolic3(ld y, ld z) {
     ld co = vid.binary_width / log(2) / 4;
     return hr::parabolic13(y * co, z * co);
     }
 
   // on which horocycle are we
-  ld horo_level(hyperpoint h) {
+  EX ld horo_level(hyperpoint h) {
     h /= (1 + h[GDIM]);
     h[0] -= 1;
     h /= sqhypot_d(GDIM, h);
@@ -650,7 +647,7 @@ namespace binary {
     return log(2) + log(-h[0]);
     }
   
-  hyperpoint deparabolic3(hyperpoint h) {
+  EX hyperpoint deparabolic3(hyperpoint h) {
     h /= (1 + h[3]);
     hyperpoint one = point3(1,0,0);
     h -= one;
@@ -671,7 +668,7 @@ auto bt_config = addHook(hooks_args, 0, [] () {
   });
 #endif
 
-bool pseudohept(cell *c) {
+EX bool pseudohept(cell *c) {
   if(WDIM == 2)
     return c->type & c->master->distance & 1;
   else if(geometry == gHoroRec)
@@ -682,14 +679,14 @@ bool pseudohept(cell *c) {
     return (c->master->zebraval == 1) && (c->master->distance & 1);
   }
 
-pair<gp::loc, gp::loc> gpvalue(heptagon *h) {
+EX pair<gp::loc, gp::loc> gpvalue(heptagon *h) {
   int d = h->c.spin(S7-1);
   if(d == 0) return make_pair(gp::loc(0,0), gp::loc(-1,0));
   else return make_pair(gp::eudir((d-1)*2), gp::loc(1,0));
   }
 
 // distance in a triangular grid
-int tridist(gp::loc v) {
+EX int tridist(gp::loc v) {
   using namespace gp;
   int d = v.first - v.second;
   int d0 = d % 3;
@@ -698,7 +695,7 @@ int tridist(gp::loc v) {
   return length(v * loc(1,1)) * 2 / 3;
   }
 
-int equalize(heptagon*& c1, heptagon*& c2) {
+EX int equalize(heptagon*& c1, heptagon*& c2) {
   int steps = 0;
   int d1 = c1->distance;
   int d2 = c2->distance;
@@ -707,7 +704,7 @@ int equalize(heptagon*& c1, heptagon*& c2) {
   return steps;
   }  
 
-int celldistance3_tri(heptagon *c1, heptagon *c2) {
+EX int celldistance3_tri(heptagon *c1, heptagon *c2) {
   using namespace gp;
   int steps = equalize(c1, c2);
   vector<pair<loc, loc> > m1, m2;
@@ -734,7 +731,7 @@ int celldistance3_tri(heptagon *c1, heptagon *c2) {
   return steps;
   }
 
-int celldistance3_rec(heptagon *c1, heptagon *c2) {
+EX int celldistance3_rec(heptagon *c1, heptagon *c2) {
   int steps = equalize(c1, c2);
   vector<int> dx;
   while(c1 != c2) {
@@ -755,7 +752,7 @@ int celldistance3_rec(heptagon *c1, heptagon *c2) {
   return steps;
   }
 
-int celldistance3_square(heptagon *c1, heptagon *c2) {
+EX int celldistance3_square(heptagon *c1, heptagon *c2) {
   int steps = equalize(c1, c2);
   vector<int> dx, dy;
   while(c1 != c2) {
@@ -780,7 +777,7 @@ int celldistance3_square(heptagon *c1, heptagon *c2) {
   }
 
 // this algorithm is wrong: it never considers the "narrow gap" moves
-int celldistance3_hex(heptagon *c1, heptagon *c2) {
+EX int celldistance3_hex(heptagon *c1, heptagon *c2) {
   int steps = equalize(c1, c2);
   vector<int> d1, d2;
   while(c1 != c2) {
@@ -811,7 +808,7 @@ int celldistance3_hex(heptagon *c1, heptagon *c2) {
   return steps;
   }
 
-int celldistance3_approx(heptagon *c1, heptagon *c2) {
+EX int celldistance3_approx(heptagon *c1, heptagon *c2) {
   int d = 0;
   while(true) {
     if(d > 1000000) return d; /* sanity check */
@@ -828,7 +825,7 @@ int celldistance3_approx(heptagon *c1, heptagon *c2) {
     }
   }
 
-int celldistance3(heptagon *c1, heptagon *c2) {
+EX int celldistance3(heptagon *c1, heptagon *c2) {
   switch(geometry) {
     case gBinary3: return celldistance3_square(c1, c2);
     case gHoroTris: return celldistance3_tri(c1, c2);
@@ -842,9 +839,9 @@ int celldistance3(heptagon *c1, heptagon *c2) {
     }
   }
 
-int celldistance3(cell *c1, cell *c2) { return celldistance3(c1->master, c2->master); }
+EX int celldistance3(cell *c1, cell *c2) { return celldistance3(c1->master, c2->master); }
 
-void virtualRebaseSimple(heptagon*& base, transmatrix& at) {
+EX void virtualRebaseSimple(heptagon*& base, transmatrix& at) {
 
   while(true) {
   
@@ -877,15 +874,15 @@ void virtualRebaseSimple(heptagon*& base, transmatrix& at) {
   }
 #endif
 
-hyperpoint get_horopoint(ld y, ld x) {
+EX hyperpoint get_horopoint(ld y, ld x) {
   return xpush(-y) * binary::parabolic(x) * C0;
   }
 
-hyperpoint get_horopoint(hyperpoint h) {
+EX hyperpoint get_horopoint(hyperpoint h) {
   return get_horopoint(h[0], h[1]);
   }
 
-hyperpoint get_corner_horo_coordinates(cell *c, int i) {
+EX hyperpoint get_corner_horo_coordinates(cell *c, int i) {
   ld yx = log(2) / 2;
   ld yy = yx;
   ld xx = 1 / sqrt(2)/2;
diff --git a/hyper.h b/hyper.h
index 8a73d9fb..6e4edad7 100644
--- a/hyper.h
+++ b/hyper.h
@@ -4761,19 +4761,6 @@ bool saved_tortoise_on(cell *c);
 #define REVRING(i) for(double i=cgi.S84; i>=-1e-6; i-=SD3 * pow(.5, vid.linequality))
 #define PRING(i) for(double i=0; i<=cgi.S84+1e-6; i+= pow(.5, vid.linequality))
 #define REVPRING(i) for(double i=cgi.S84; i>=-1e-6; i-=pow(.5, vid.linequality))
-#if CAP_BT
-
-namespace binary {
-  transmatrix parabolic(ld u);
-  transmatrix parabolic3(ld u, ld v);
-  extern ld btrange, btrange_cosh;
-  hrmap *new_map();
-  hrmap *new_alt_map(heptagon *o);
-  hyperpoint get_horopoint(ld y, ld x);
-  hyperpoint get_horopoint3(ld y, ld x, ld z);
-  hyperpoint get_horopoint(hyperpoint h);
-  }
-#endif
 
 #if MAXMDIM == 4
 namespace euclid3 {
@@ -5662,4 +5649,8 @@ extern int noclipped;
 void draw_radar(bool cornermode); 
 namespace binary { int updir(); }
 
-}
\ No newline at end of file
+#define EX
+#define EXT(z)
+}
+
+#include "autohdr.h"
diff --git a/makeh.cpp b/makeh.cpp
new file mode 100644
index 00000000..053c96e7
--- /dev/null
+++ b/makeh.cpp
@@ -0,0 +1,82 @@
+#include <cstdio>
+#include <iostream>
+#include <fstream>
+#include <string>
+
+using namespace std;
+
+int indent = 2;
+
+string ind() { string s; for(int i=0; i<indent; i++) s += ' '; return s; }
+
+string which_file;
+
+void mark_file() {
+  if(which_file != "") {
+    cout << "\n" << ind() << "// implemented in: " << which_file << "\n\n";
+    which_file = "";
+    }
+  }
+
+bool do_endif;
+
+
+void gen(string s) {
+  which_file = s;
+  do_endif = false;
+  ifstream in(s);
+  while(getline(in, s)) {
+    while(s != "" && s[0] == ' ') s = s.substr(1);
+    if(s.substr(0, 7) == "#if EX ") {
+      cout << ind() << s << "\n";
+      do_endif = true;
+      }
+    if(s.substr(0, 3) == "EX ") {
+      string t = s.substr(3);
+      if(t.substr(0, 10) == "namespace ") {
+        mark_file();
+        cout << ind() << t << "\n";
+        indent += 2;
+        }
+      else {
+        for(int i=0;; i++) {
+          if(i == int(t.size())) { cerr << "Error: unrecognizable EX\n"; }
+          else if(t[i] == '{') {
+            while(i && t[i-1] == ' ') i--;
+            cout << ind() << t.substr(0, i) << ";\n";
+            break;
+            }
+          else if(t[i] == ';') {
+            cout << ind() << "extern " << t << "\n";
+            break;
+            }
+          else if(t[i] == '=') {
+            while(i && t[i-1] == ' ') i--;
+            cout << ind() << "extern " << t.substr(0, i) << ";\n";
+            break;
+            }
+          }
+        }
+      }
+    }
+  
+  if(do_endif) {
+    cout << ind() << "#endif\n";
+    do_endif = false;
+    }
+
+  while(indent > 2) {
+    cout << ind() << "}\n";
+    indent -= 2;
+    }
+  }
+
+int main(int argc, char ** argv) {
+  printf("// This file is generated automatically by makeh.cpp.\n\nnamespace hr {\n");
+  indent = 2;
+  
+  for(int i=1; i<argc; i++) 
+    gen(argv[i]);
+  
+  printf("  }\n");
+  }