1 files changed, 28 insertions, 0 deletions
diff --git a/src/mbgl/shader/collision_box_vertex.hpp b/src/mbgl/shader/collision_box_vertex.hpp
new file mode 100644
index 0000000000..f591a64ca1
--- /dev/null
+++ b/src/mbgl/shader/collision_box_vertex.hpp
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <cstdint>
+#include <cmath>
+
+namespace mbgl {
+
+class CollisionBoxVertex {
+public:
+    CollisionBoxVertex(int16_t x, int16_t y, float ox, float oy, float maxzoom, float placementZoom)
+        : a_pos { x, y },
+          a_extrude {
+              static_cast<int16_t>(::round(ox)),
+              static_cast<int16_t>(::round(oy))
+          },
+          a_data {
+              static_cast<uint8_t>(maxzoom * 10),
+              static_cast<uint8_t>(placementZoom * 10)
+          } {}
+
+    const int16_t a_pos[2];
+    const int16_t a_extrude[2];
+    const uint8_t a_data[2];
+
+    static void bind(const int8_t* offset);
+};
+
+} // namespace mbgl