possibly finished

README.md

@@ -6,7 +6,7 @@ Also, make sure you recurse submodules when cloning.
 
 Example:
 ```
-$ ./wfc -i mountain_range.txt -w 32 -h 32 -d 3
+$ ./wfc -i mountain_range.txt -w 32 -h 32 -d 3 -o
 ^^  &...&           ^^^  &&&&&..
 ^^^ &...&   ^^     ^^^      &&&&
  ^^ &..&&   ^^   ^^^^           

dungeon_small.txt

@@ -0,0 +1,13 @@
+
+
+     #######       ########      
+     #.....#       #......#      
+   ###.....+,,,,,,,+......#      
+   #......##    ,  #####+##      
+   #......#     ,       ,        
+   #......#     ,       ,        
+   ########     ,    ###+#####   
+                ,    #.......#   
+                ,,,,,+.......#   
+                     #########   
+

src/main.cpp

@@ -39,7 +39,7 @@ int main(int argc, char** argv) {
 		.add_singleton("--height", "-h", HasArg::Req, true)
 		.add_singleton("--metatile-dim", "-d", HasArg::Req, false)
 		.add_singleton("--backtrack", "-b", HasArg::None, false)
-		//.add_singleton("--overlap", "-o", HasArg::None, false)
+		.add_singleton("--overlap", "-o", HasArg::None, false)
 		.add_singleton("--rotate", "-r", HasArg::None, false)
 		.add_singleton("--reflect", "-R", HasArg::None, false)
 		.add_singleton("--seed", "-s", HasArg::Req, false);
@@ -128,7 +128,7 @@ int main(int argc, char** argv) {
 
 	const bool
 		backtrack = ap.has_opts("--backtrack"),
-		//overlap = ap.has_opts("--overlap"),
+		overlap = ap.has_opts("--overlap"),
 		rotate = ap.has_opts("--rotate"),
 		reflect = ap.has_opts("--reflect");
 
@@ -143,7 +143,7 @@ int main(int argc, char** argv) {
 	wfc::Wfc the_wfc
 		(size_2d, mt_dim,
 		input_tiles,
-		backtrack, rotate, reflect, //overlap,
+		backtrack, overlap, rotate, reflect,
 		rng_seed);
 	for (size_t j=0; j<the_wfc.result().size(); ++j) {
 		const auto& row = the_wfc.result().at(j);

src/metatile_class.hpp

@@ -31,6 +31,9 @@ class Metatile final {
 		//return {.x=data().front().size(), .y=data().size()};
 		return {.x=dim(), .y=dim()};
 	}
+	inline size_t& front() {
+		return _data.front().front();
+	}
 	inline size_t& at(const Vec2<size_t>& pos) {
 		return _data.at(pos.y).at(pos.x);
 	}