src/chunk: plug in lqt for collision detection

1 files changed, 28 insertions, 0 deletions

diff --git a/test/bbox.cpp b/test/bbox.cpp
new file mode 100644
index 00000000..c045d858
--- /dev/null
+++ b/test/bbox.cpp
@@ -0,0 +1,28 @@
+#include "app.hpp"
+#include "src/chunk.hpp"
+#include "compat/LooseQuadtree-impl.h"
+#include <Magnum/Math/Vector2.h>
+
+namespace floormat {
+
+void test_app::test_bbox()
+{
+    auto c = make_test_chunk();
+    auto& qt = c.ensure_passability();
+    fm_assert(qt.GetSize() >= 2);
+
+    using namespace loose_quadtree;
+    using bbox = BoundingBox<std::int16_t>;
+    constexpr auto pos1 = Vector2s(iTILE_SIZE2 * (TILE_MAX_DIM/2) - Vector2i(0, iTILE_SIZE[1]/2)),
+                   size = Vector2s(iTILE_SIZE2);
+    constexpr auto b1 = bbox{pos1[0], pos1[1], size[0], size[1]};
+    constexpr auto pos2 = Vector2s(iTILE_SIZE2 * (Vector2i(TILE_MAX_DIM/2) - Vector2i(-1, -1)) - Vector2i(0, iTILE_SIZE[1]/2));
+    auto q1 = qt.QueryIntersectsRegion(b1);
+    fm_assert(!q1.EndOfQuery());
+    do q1.Next(); while (!q1.EndOfQuery());
+    constexpr auto b2 = bbox{pos2[0], pos2[1], size[0], size[1]};
+    auto q2 = qt.QueryIntersectsRegion(b2);
+    fm_assert(q2.EndOfQuery());
+}
+
+} // namespace floormat