1 files changed, 53 insertions, 0 deletions
diff --git a/main/update.cpp b/main/update.cpp
new file mode 100644
index 00000000..1c7bb500
--- /dev/null
+++ b/main/update.cpp
@@ -0,0 +1,53 @@
+#include "app.hpp"
+
+namespace floormat {
+
+chunk app::make_test_chunk()
+{
+    constexpr auto N = TILE_MAX_DIM;
+    chunk c;
+    for (auto [x, k, pt] : c) {
+        const auto& atlas = pt.x > N/2 && pt.y >= N/2 ? floor2 : floor1;
+        x.ground_image = { atlas, (std::uint8_t)(k % atlas->num_tiles().product()) };
+    }
+    constexpr auto K = N/2;
+    c[{K,   K  }].wall_north = { wall1, 0 };
+    c[{K,   K  }].wall_west  = { wall2, 0 };
+    c[{K,   K+1}].wall_north = { wall1, 0 };
+    c[{K+1, K  }].wall_west  = { wall2, 0 };
+    return c;
+}
+
+void app::do_mouse_click(const Vector2 pos, int button)
+{
+    _editor.click_at_tile(pos, button);
+}
+
+void app::update(float dt)
+{
+    do_camera(dt);
+    do_menu();
+    if (keys[key::quit])
+        Platform::Sdl2Application::exit(0);
+}
+
+Vector2 app::pixel_to_tile(Vector2 position) const
+{
+    const auto px = position - Vector2{windowSize()}*.5f - camera_offset;
+    return unproject(px) / Vector2{TILE_SIZE[0]*.5f, TILE_SIZE[1]*.5f} + Vector2{.5f, .5f};
+}
+
+void app::draw_cursor_tile()
+{
+    if (_cursor_pos)
+    {
+        const auto tile = pixel_to_tile(Vector2(*_cursor_pos));
+        if (std::min(tile[0], tile[1]) >= 0 && std::max(tile[0], tile[1]) < (int)TILE_MAX_DIM)
+        {
+            const auto x = std::uint8_t(tile[0]), y = std::uint8_t(tile[1]);
+            draw_wireframe_quad({x, y});
+        }
+    }
+}
+
+} // namespace floormat