add wall outline wireframes

1 files changed, 30 insertions, 0 deletions

diff --git a/draw/quad-floor.hpp b/draw/quad-floor.hpp
new file mode 100644
index 00000000..7a8ec59a
--- /dev/null
+++ b/draw/quad-floor.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <array>
+#include <Magnum/Math/Vector2.h>
+#include <Magnum/Math/Vector3.h>
+#include <Magnum/GL/Mesh.h>
+#include <Corrade/Containers/ArrayViewStl.h>
+
+namespace floormat::wireframe {
+
+struct quad_floor final
+{
+    quad_floor(Vector3 center, Vector2 size, float line_width);
+
+    static constexpr std::size_t num_vertices = 4, num_indexes = 0;
+    static constexpr GL::MeshPrimitive primitive = GL::MeshPrimitive::LineLoop;
+
+    using vertex_array = std::array<Vector3, num_vertices>;
+
+    static ArrayView<const void> make_index_array() { return {}; }
+    vertex_array make_vertex_array() const;
+    void on_draw() const;
+
+private:
+    Vector3 center;
+    Vector2 size;
+    float line_width;
+};
+
+} // namespace floormat::wireframe