wip

1 files changed, 36 insertions, 0 deletions

diff --git a/draw/anim.hpp b/draw/anim.hpp
new file mode 100644
index 00000000..60a4e839
--- /dev/null
+++ b/draw/anim.hpp
@@ -0,0 +1,36 @@
+#pragma once
+
+#include "local-coords.hpp"
+#include <array>
+#include <Corrade/Containers/ArrayViewStl.h>
+#include <Magnum/Magnum.h>
+#include <Magnum/Math/Vector2.h>
+#include <Magnum/Math/Vector3.h>
+#include <Magnum/GL/Mesh.h>
+#include <Magnum/GL/Buffer.h>
+
+namespace floormat::Serialize { struct anim_atlas; struct anim_frame; }
+
+namespace floormat {
+
+struct anim_atlas;
+using anim_frame = Serialize::anim_frame;
+
+struct anim_mesh final
+{
+    anim_mesh();
+    void draw(local_coords pos, const anim_atlas& atlas, const anim_frame& frame);
+
+private:
+    struct vertex_data final { Vector2 texcoords; };
+    using quad_data = std::array<vertex_data, 4>;
+
+    static std::array<UnsignedShort, 6> make_index_array();
+
+
+    GL::Mesh _mesh;
+    GL::Buffer _vertex_buffer{quad_data{}, Magnum::GL::BufferUsage::DynamicDraw},
+               _index_buffer{make_index_array()}, _positions_buffer{quad_data{}};
+};
+
+} // namespace floormat