From 98edbb9f489dac189915413a6bd4e75dd882cfd8 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 27 Apr 2025 01:55:03 +0200
Subject: [PATCH] ru:: hints

---
 rogueviz/ru/classes.cpp | 11 +++++++++++
 rogueviz/ru/entity.cpp  |  8 ++++++++
 rogueviz/ru/save.cpp    |  6 ++++++
 3 files changed, 25 insertions(+)

diff --git a/rogueviz/ru/classes.cpp b/rogueviz/ru/classes.cpp
index 4c1166a8..85ffcc37 100644
--- a/rogueviz/ru/classes.cpp
+++ b/rogueviz/ru/classes.cpp
@@ -191,6 +191,17 @@ struct npc : public entity {
   void act() override;
   };
 
+struct hint : public entity {
+  string hint_text;
+  int state;
+  int width, height;
+  double sx() override { return width; }
+  double sy() override { return height; }
+  string glyph() override { return " "; }
+  color_t color() override { return 0; }
+  void act() override;
+  };
+
 struct item : public entity {
   int id;
   string pickup_message;
diff --git a/rogueviz/ru/entity.cpp b/rogueviz/ru/entity.cpp
index e03a91a5..a65b7d4f 100644
--- a/rogueviz/ru/entity.cpp
+++ b/rogueviz/ru/entity.cpp
@@ -194,4 +194,12 @@ void npc::act() {
     }
   }
 
+void hint::act() {
+  bool cur = intersect(get_pixel_bbox(), m.get_pixel_bbox());
+  if(cur && !state) {
+    addMessage(hint_text);
+    }
+  state = cur;
+  }
+
 }
diff --git a/rogueviz/ru/save.cpp b/rogueviz/ru/save.cpp
index cc7c0a01..48ef3152 100644
--- a/rogueviz/ru/save.cpp
+++ b/rogueviz/ru/save.cpp
@@ -127,6 +127,12 @@ void load_room(fhstream& f, cell *c) {
         b->text = scanline_noblank(f);
         r.entities.emplace_back(std::move(b));
         }
+      else if(cap == "HINT") {
+        auto b = std::make_unique<hint>();
+        sscanf(param.c_str(), "%lf%lf%d%d", &b->where_x, &b->where_y, &b->width, &b->height);
+        b->hint_text = scanline_noblank(f);
+        r.entities.emplace_back(std::move(b));
+        }
       else println(hlog, "unknown mapline ", s);
       }
     else println(hlog, "unknown mapline ", s);