src: add O(1) chunk access from entity

2 files changed, 6 insertions, 3 deletions

diff --git a/test/json.cpp b/test/json.cpp
index 60e464f6..349219b1 100644
--- a/test/json.cpp
+++ b/test/json.cpp
@@ -20,7 +20,8 @@ static chunk make_test_chunk()
          metal2 = loader.tile_atlas("metal2", {2, 2}, pass_mode::blocked),
          tiles = loader.tile_atlas("tiles", {8, 5}, pass_mode::pass);
     constexpr auto N = TILE_MAX_DIM;
-    chunk c;
+    world w;
+    chunk c{w};
     for (auto [x, k, pt] : c) {
         x.ground() = { tiles, variant_t(k % tiles->num_tiles()) };
     }
diff --git a/test/tile-iter.cpp b/test/tile-iter.cpp
index 9d31fd49..7b9eafbf 100644
--- a/test/tile-iter.cpp
+++ b/test/tile-iter.cpp
@@ -12,7 +12,8 @@ void test_app::test_tile_iter() // NOLINT(readability-function-size)
 {
     if (always_false())
     {
-        const chunk c;
+        world w;
+        const chunk c{w};
         for ([[maybe_unused]] const auto& [x, k, pt] : c)
             static_assert(std::is_same_v<decltype(x), const tile_proto>);
         for ([[maybe_unused]] const auto [x, k, pt] : c)
@@ -22,7 +23,8 @@ void test_app::test_tile_iter() // NOLINT(readability-function-size)
     }
     if (always_false())
     {
-        chunk c;
+        world w;
+        chunk c{w};
         for ([[maybe_unused]] auto [x, k, pt] : c)
             static_assert(std::is_same_v<decltype(x), tile_ref>);
         for ([[maybe_unused]] const auto [x, k, pt] : c)