1 files changed, 28 insertions, 0 deletions
diff --git a/draw/quad-floor.cpp b/draw/quad-floor.cpp
new file mode 100644
index 00000000..8d072a90
--- /dev/null
+++ b/draw/quad-floor.cpp
@@ -0,0 +1,28 @@
+#include "quad-floor.hpp"
+#include <array>
+#include <Magnum/GL/Renderer.h>
+
+namespace floormat::wireframe {
+
+auto quad_floor::make_vertex_array() const -> vertex_array
+{
+    const float x = size[0]*.5f, y = size[1]*.5f;
+    const auto cx = center[0], cy = center[1], cz = center[2];
+    return {{
+        { -x + cx, -y + cy, cz },
+        {  x + cx, -y + cy, cz },
+        {  x + cx,  y + cy, cz },
+        { -x + cx,  y + cy, cz },
+    }};
+}
+
+quad_floor::quad_floor(Vector3 center, Vector2 size, float line_width) :
+      center(center), size(size), line_width{line_width}
+{}
+
+void quad_floor::on_draw() const
+{
+    GL::Renderer::setLineWidth(line_width);
+}
+
+} // namespace floormat::wireframe