From 2bd079003a36106e927ba38a35d885c4858dcaae Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 2 May 2022 03:38:20 +0200
Subject: [PATCH] nilrider:: loading saved plans and replays

---
 rogueviz/nilrider/nilrider.cpp | 59 +++++++++++++++++++++++++++++++++-
 rogueviz/nilrider/save.cpp     | 43 ++++++++++++++++++++++++-
 2 files changed, 100 insertions(+), 2 deletions(-)

diff --git a/rogueviz/nilrider/nilrider.cpp b/rogueviz/nilrider/nilrider.cpp
index 71518346..f1da95fc 100644
--- a/rogueviz/nilrider/nilrider.cpp
+++ b/rogueviz/nilrider/nilrider.cpp
@@ -237,6 +237,57 @@ void settings() {
   dialog::addBack();
   }
 
+bool deleting = false;
+
+template<class T, class U> void replays_of_type(vector<T>& v, const U& loader) {
+  int i = 0;
+  for(auto& r: v) {
+    dialog::addItem(r.name, 'a');
+    dialog::add_action([&v, i, loader] {
+      if(deleting) {
+        dialog::push_confirm_dialog(
+          [&, i] { v.erase(v.begin() + i); save(); },
+          "Are you sure you want to delete '" + v[i].name + "'?"
+          );
+        }
+      else loader(v[i]);
+      });
+    i++;
+    }
+  }
+
+void replays() {
+  dialog::init(XLAT(planning_mode ? "saved plans" : "replays"), 0xC0C0FFFF, 150, 100);
+  if(!planning_mode) replays_of_type(curlev->manual_replays, [] (manual_replay& r) {
+    view_replay = false;
+    curlev->history.clear();
+    auto& current = curlev->current;
+    current = curlev->start;
+    for(auto h: r.headings) {
+      current.heading_angle = int_to_heading(h);
+      curlev->history.push_back(current);
+      if(!current.tick(curlev)) break;
+      }
+    toggle_replay();
+    popScreen();
+    });
+  if(planning_mode) replays_of_type(curlev->plan_replays, [] (plan_replay& r) {
+    view_replay = false;
+    curlev->history.clear();
+    curlev->plan = r.plan;
+    popScreen();
+    });
+  dialog::addBoolItem_action("delete", deleting, 'X');
+  dialog::addBack();
+  dialog::display();
+  }
+
+void pop_and_push_replays() {
+  deleting = false;
+  popScreen();
+  pushScreen(replays);
+  }
+
 reaction_t on_quit = [] { exit(0); }; 
 
 void main_menu() {
@@ -265,6 +316,9 @@ void main_menu() {
       curlev->manual_replays.emplace_back(manual_replay{new_replay_name(), std::move(ang)});
       save();
       });
+
+    dialog::addItem("load a replay", 'l');
+    dialog::add_action(pop_and_push_replays);
     }
   else {
     dialog::addItem("save this plan", 's');
@@ -272,6 +326,9 @@ void main_menu() {
       curlev->plan_replays.emplace_back(plan_replay{new_replay_name(), curlev->plan});
       save();
       });
+
+    dialog::addItem("load a plan", 'l');
+    dialog::add_action(pop_and_push_replays);
     }
 
   dialog::addItem("change track or game settings", 't');
@@ -312,7 +369,7 @@ void nilrider_keys() {
   }
 
 void initialize() {
-
+  load();
   nilrider_keys();
 
   check_cgi();
diff --git a/rogueviz/nilrider/save.cpp b/rogueviz/nilrider/save.cpp
index 496079e6..b151fb4b 100644
--- a/rogueviz/nilrider/save.cpp
+++ b/rogueviz/nilrider/save.cpp
@@ -13,7 +13,7 @@ string new_replay_name() {
 void save() {
   println(hlog, "save called");
   fhstream f("nilrider.save", "wt");
-  println(f, "version ", ver);
+  println(f, "NilRider version ", ver);
   for(auto l: all_levels) {
     for(auto& p: l->manual_replays) {
       println(f, "*MANUAL");
@@ -34,4 +34,45 @@ void save() {
     }
   }
 
+level *level_by_name(string s) {
+  for(auto l: all_levels) if(l->name == s) return l;
+  println(hlog, "error: unknown level ", s);
+  return nullptr;
+  }
+
+void load() {
+  println(hlog, "load called");
+  fhstream f("nilrider.save", "rt");
+  if(!f.f) return;
+  string ver = scanline_noblank(f);
+  while(!feof(f.f)) {
+    string s = scanline_noblank(f);
+    if(s == "") continue;
+    if(s == "*MANUAL") {
+      string lev = scanline_noblank(f);
+      string name = scanline_noblank(f);
+      vector<int> headings;
+      int size = scan<int> (f);
+      if(size < 0 || size > 1000000) throw hstream_exception();
+      for(int i=0; i<size; i++) headings.push_back(scan<int>(f));
+      auto l = level_by_name(lev);
+      if(l) l->manual_replays.emplace_back(manual_replay{name, std::move(headings)});
+      continue;
+      }
+    if(s == "*PLANNING") {
+      string lev = scanline_noblank(f);
+      string name = scanline_noblank(f);
+      plan_t plan;
+      int size = scan<int> (f);
+      if(size < 0 || size > 1000000) throw hstream_exception();
+      plan.resize(size, {C0, C0});
+      for(int i=0; i<size; i++) scan(f, plan[i].at[0], plan[i].at[1], plan[i].vel[0], plan[i].vel[1]);
+      auto l = level_by_name(lev);
+      if(l) l->plan_replays.emplace_back(plan_replay{name, std::move(plan)});
+      continue;
+      }
+    println(hlog, "error: unknown content ", s);
+    }
+  }
+
 }