From fbee8b6c35e3bf55ad02c30f354bd42b2c245a1b Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Tue, 15 Mar 2022 12:13:45 -0400
Subject: lit tiles in unloaded chunk should count toward total lit tiles for
 zooming

---
 src/map.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/map.h')

diff --git a/src/map.h b/src/map.h
index 13b2b32..2faac85 100644
--- a/src/map.h
+++ b/src/map.h
@@ -120,6 +120,8 @@ public:
     return loaded_;
   }
 
+  inline int getUnloadedLitTiles() const { return unloadedLitTiles_; }
+
   void load(int newLeftChunk, int newTopChunk, int newWidthChunks, int newHeightChunks, std::mt19937& rng) {
     // Flush the currently loaded data as long as there is any (this isn't the first load).
     if (!loaded_.empty()) {
@@ -143,6 +145,8 @@ public:
               }
             }
           }
+
+          unloadedLitTiles_ += chunk.litTiles;
         }
       }
 
@@ -183,6 +187,7 @@ public:
           Chunk& chunk = chunks_[chunkIndex];
           chunk.x = leftmostChunk_ + chunkX;
           chunk.y = topmostChunk_ + chunkY;
+          chunk.litTiles = 0;
 
           for (MapData& md : chunk.data)
           {
@@ -205,6 +210,8 @@ public:
             std::next(std::begin(chunk.data), (y+1)*CHUNK_WIDTH),
             std::next(std::begin(loaded_), (chunkY*CHUNK_HEIGHT + y)*width_ + chunkX*CHUNK_WIDTH));
         }
+
+        unloadedLitTiles_ -= chunk.litTiles;
       }
     }
 
@@ -225,6 +232,8 @@ private:
   std::vector<Chunk> chunks_;
   std::list<size_t> freeList_;
   std::map<int, std::map<int, size_t>> chunkByPos_; // chunkByPos_[X][Y]
+
+  int unloadedLitTiles_ = 0;
 };
 
 #endif /* end of include guard: MAP_H_3AB00D12 */
-- 
cgit 1.4.1