2 files changed, 35 insertions, 0 deletions
diff --git a/bench/raycast.cpp b/bench/raycast.cpp
new file mode 100644
index 00000000..21b1643d
--- /dev/null
+++ b/bench/raycast.cpp
@@ -0,0 +1,20 @@
+#include "src/raycast.hpp"
+#include <benchmark/benchmark.h>
+
+namespace floormat {
+
+namespace {
+
+#warning TODO!
+
+[[maybe_unused]] void Raycast(benchmark::State& state)
+{
+    for (auto _ : state)
+        (void)0;
+}
+
+BENCHMARK(Raycast)->Unit(benchmark::kMicrosecond);
+
+} // namespace
+
+} // namespace floormat
diff --git a/test/raycast.cpp b/test/raycast.cpp
index 672dc407..1793f5b6 100644
--- a/test/raycast.cpp
+++ b/test/raycast.cpp
@@ -1,8 +1,23 @@
 #include "app.hpp"
 #include "src/raycast.hpp"
+#include "src/world.hpp"
 
 namespace floormat {
 
+namespace {
+
+#warning TODO!
+
+void test1()
+{
+    // try reproducing the evil bug in src/raycast.cpp:285:
+    //   c = w.at({last_ch + Vector2i{i - 1, j - 1}});
+    // was incorrectly:
+    //   c = w.at({last_ch - Vector2i{i - 1, j - 1}});
+}
+
+} // namespace
+
 void test_app::test_raycast()
 {