From 3146fdd02ff8fc80da021527d8f203157b7253b8 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 1 May 2021 11:13:51 +0200
Subject: [PATCH] hybrid:: draw_underlying_space no longer covers the screen in
 e2xe, and also fixed the orientation in product

---
 graph.cpp        | 1 +
 hypgraph.cpp     | 1 +
 nonisotropic.cpp | 9 +++++++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/graph.cpp b/graph.cpp
index d8156004..a1185930 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -4969,6 +4969,7 @@ EX void calcparam() {
   realradius = min(realradius, cd->radius);
   
   ld aradius = sphere ? cd->radius / (pconf.alpha - 1) : cd->radius;
+  if(euclid && rots::drawing_underlying) aradius *= 2.5;
   
   if(dronemode) { cd->ycenter -= cd->radius; cd->ycenter += vid.fsize/2; cd->ycenter += vid.fsize/2; cd->radius *= 2; }
   
diff --git a/hypgraph.cpp b/hypgraph.cpp
index cc90f1a1..84890d3c 100644
--- a/hypgraph.cpp
+++ b/hypgraph.cpp
@@ -2783,6 +2783,7 @@ EX bool do_draw(cell *c, const shiftmatrix& T) {
     return true;
     }
 
+  if(rots::drawing_underlying && euclid && hdist0(tC0(T)) > 6) return false;
   if(just_gmatrix && sphere) return true;
   if(!do_draw(c)) return false;
   if(euclid && pmodel == mdSpiral) {
diff --git a/nonisotropic.cpp b/nonisotropic.cpp
index 0d770da9..c21bc127 100644
--- a/nonisotropic.cpp
+++ b/nonisotropic.cpp
@@ -2194,6 +2194,8 @@ EX namespace rots {
 
     return M;
     }
+    
+  EX bool drawing_underlying = false;
   
   EX void draw_underlying(bool cornermode) {
     if(underlying_scale <= 0) return;
@@ -2202,6 +2204,8 @@ EX namespace rots {
     transmatrix T = rots::uzpush(-d) * spin(-2*d);
   
     if(det(T) < 0) T = centralsym * T;
+    
+    if(prod) d = 0;
   
     hyperpoint h = inverse(View * spin(master_to_c7_angle()) * T) * C0;
     
@@ -2226,19 +2230,20 @@ EX namespace rots {
       dynamicval<bool> pf(playerfound, true);
       dynamicval<cell*> m5(centerover, co);
       dynamicval<transmatrix> m2(View, inprod ? pView : ypush(0) * qtm(h));
-      if(PURE) View = View * pispin;
+      if(PURE && !inprod) View = View * pispin;
       View = inverse(stretch::mstretch_matrix) * spin(2*d) * View;
       dynamicval<shiftmatrix> m3(playerV, shiftless(Id));
       dynamicval<transmatrix> m4(actual_view_transform, Id);
       dynamicval<shiftmatrix> m6(cwtV, shiftless(Id));
       dynamicval<eModel> pm(pmodel, mdDisk);
-      dynamicval<ld> pss(pconf.scale, (sphere ? 10 : 1) * underlying_scale);
+      dynamicval<ld> pss(pconf.scale, (sphere ? 10 : euclid ? .4 : 1) * underlying_scale);
       dynamicval<ld> psa(pconf.alpha, sphere ? 10 : 1);
       dynamicval<hrmap*> p(hybrid::pmap, NULL);
       dynamicval<int> psr(sightrange_bonus, 0);
 
       dynamicval<int> psx(vid.use_smart_range, 2);
       dynamicval<ld> psy(vid.smart_range_detail, 1);
+      dynamicval<bool> pdu(drawing_underlying, true);
 
       calcparam();
       reset_projection(); current_display->set_all(0, 0);