From ca3232c3bbd25bd03214f3f931f75999225d8d33 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 18 Jan 2020 17:11:57 +0100
Subject: [PATCH] extended 'linewidth' setting: illustration mode, hint about
 Alt, disable shadows, bright mode, colorblind simulation

---
 celldrawer.cpp | 18 +++++++++++++++++-
 config.cpp     | 11 +++++++++++
 drawing.cpp    | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/celldrawer.cpp b/celldrawer.cpp
index 28fe4266..476540c2 100644
--- a/celldrawer.cpp
+++ b/celldrawer.cpp
@@ -567,8 +567,23 @@ void celldrawer::setcolors() {
   if(!wmspatial && snakelevel(c) && !realred(c->wall)) fcol = wcol;
   
   if(c->wall == waGlass && !wmspatial) fcol = wcol;  
+  
+  if(neon_mode == 4) {
+    fcol = highwall(c) ? w_monochromatize(fcol, 0) : w_monochromatize(fcol, 1);
+    wcol = w_monochromatize(wcol, 0);
+    if(c->land == laWarpCoast && !pseudohept(c) && c->wall == waNone) fcol = 0x707070;
+    }
   }
 
+EX color_t w_monochromatize(color_t x, int d) {
+  int c = part(x,2) + part(x,1) + part(x, 0) + 1;
+  c /= 3;
+  if(d == 0) c = c;
+  else c = (c + 2 * 255) / 3;
+  return c * 0x10101;
+  }
+
+
 void celldrawer::tune_colors() {
   if(inmirror(c)) {
     // for debugging
@@ -708,7 +723,7 @@ void celldrawer::draw_wall() {
         }
       else {
         forCellIdEx(c2, i, c) 
-          if(!highwall(c2) || conegraph(c2)) {
+          if(!highwall(c2) || conegraph(c2) || neon_mode == 4) {
           if(placeSidewall(c, i, SIDE_WALL, V, darkena(wcol2, fd, alpha))) break;
           }
         }
@@ -2451,6 +2466,7 @@ void celldrawer::draw() {
     ct6 = ctof(c);
     #endif
     fd = getfd(c);
+    if(neon_mode == 4) fd = 0;
     error = false;
     
     setcolors();
diff --git a/config.cpp b/config.cpp
index f225ee15..82dc823f 100644
--- a/config.cpp
+++ b/config.cpp
@@ -641,6 +641,9 @@ EX void initConfig() {
   addsaver(nilv::nilperiod[2], "nilperiod_z");
   
   addsaver(neon_mode, "neon_mode");
+  addsaver(noshadow, "noshadow");
+  addsaver(bright, "bright");
+  addsaver(cblind, "cblind");
 
   callhooks(hooks_configfile);
 
@@ -1144,6 +1147,14 @@ EX void showGraphConfig() {
         dialog::add_action([] { neon_mode = 2; });
         dialog::addBoolItem("neon mode II", neon_mode == 3, 'D');
         dialog::add_action([] { neon_mode = 3; });
+        dialog::addBoolItem("illustration mode", neon_mode == 4, 'E');
+        dialog::add_action([] { neon_mode = 4; });
+        dialog::addBreak(100);
+        dialog::addInfo(XLAT("hint: press Alt while testing modes"));
+        dialog::addBreak(100);
+        dialog::addBoolItem_action("disable shadows", noshadow, 'F');
+        dialog::addBoolItem_action("bright mode", bright, 'G');
+        dialog::addBoolItem_action("colorblind simulation", cblind, 'H');
         };
       }
     
diff --git a/drawing.cpp b/drawing.cpp
index e3aac538..317451b6 100644
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -2028,6 +2028,25 @@ EX void apply_neon(color_t& col, int& r) {
 
 #if CAP_SHAPES
 
+EX color_t magentize(color_t x) {
+  if(neon_mode != 4) return x;
+  int green = part(x,2);
+  int magenta = (part(x, 1) + part(x, 3)) / 2;
+  int nm = max(magenta, green);
+  int gm = (magenta + green)/2;
+  nm = (nm + 255) / 2;
+  gm = gm / 2;
+  
+  return (nm * 0x1000100) | (gm * 0x10000) | (part(x, 0));
+  }
+
+EX color_t monochromatize(color_t x) {
+  int c = part(x,2) + part(x,1) + part(x, 3);
+  c ++;
+  c /= 3;
+  return c * 0x1010100 | (part(x, 0));
+  }
+
 EX dqi_poly& queuepolyat(const transmatrix& V, const hpcshape& h, color_t col, PPR prio) {
   if(prio == PPR::DEFAULT) prio = h.prio;
 
@@ -2072,6 +2091,19 @@ EX dqi_poly& queuepolyat(const transmatrix& V, const hpcshape& h, color_t col, P
       if(col == 0xFF) ptd.outline = 0xFFFFFFFF;
       if(poly_outline != 0xFF) ptd.outline = poly_outline;
       break;
+    case 4: {
+      if(poly_outline > 0xFF) {
+        ptd.color = magentize(col);
+        ptd.outline = 0xFF;
+        }
+      else {
+        ptd.outline = poly_outline;
+        ptd.color = monochromatize(col);
+        }
+      if(ptd.color & 0xFF) ptd.color |= 0xFF;
+      if(ptd.outline & 0xFF) ptd.outline |= 0xFF;
+      break;
+      }
     }
   ptd.linewidth = vid.linewidth;
   ptd.flags = h.flags;