From 7d4f172bd280e77175f617f36673d99f50580d36 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 23 Feb 2023 09:05:17 +0100
Subject: wip

---
 entity/accessor.hpp           |  7 +++++--
 entity/chunk.cpp              | 24 ++++++++++++++++++++++++
 entity/concepts.hpp           |  1 +
 entity/erased-constraints.cpp | 12 ++++++++++--
 4 files changed, 40 insertions(+), 4 deletions(-)
 create mode 100644 entity/chunk.cpp

diff --git a/entity/accessor.hpp b/entity/accessor.hpp
index f70dee72..84c599c2 100644
--- a/entity/accessor.hpp
+++ b/entity/accessor.hpp
@@ -4,6 +4,7 @@
 #include "name-of.hpp"
 #include <type_traits>
 #include <utility>
+#include <vector>
 #include <Corrade/Containers/StringView.h>
 
 namespace floormat::erased_constraints {
@@ -81,8 +82,8 @@ struct erased_accessor final {
     template<typename Obj, typename FieldType> void read(const Obj& x, FieldType& value) const noexcept;
     template<typename Obj, typename FieldType> void write(Obj& x, move_qualified<FieldType> value) const noexcept;
 
-    field_status is_enabled(const void* x) const noexcept;
-    constexpr bool can_write() const noexcept { return writer != nullptr; }
+    inline field_status is_enabled(const void* x) const noexcept;
+    inline bool can_write() const noexcept { return writer != nullptr; }
     inline erased_constraints::range get_range(const void* x) const noexcept;
     inline erased_constraints::max_length get_max_length(const void* x) const noexcept;
     inline erased_constraints::group get_group(const void* x) const noexcept;
@@ -175,4 +176,6 @@ erased_constraints::range erased_accessor::get_range(const void* x) const noexce
 erased_constraints::max_length erased_accessor::get_max_length(const void* x) const noexcept { return length_fun(x,length); }
 erased_constraints::group erased_accessor::get_group(const void* x) const noexcept { return group_fun(x, group); }
 
+template<typename T> void get_erased_accessors(std::vector<erased_accessor>& ret);
+
 } // namespace floormat::entities
diff --git a/entity/chunk.cpp b/entity/chunk.cpp
new file mode 100644
index 00000000..6857ac1d
--- /dev/null
+++ b/entity/chunk.cpp
@@ -0,0 +1,24 @@
+#include "entity/metadata.hpp"
+#include "entity/accessor.hpp"
+#include "src/scenery.hpp"
+#include "src/anim-atlas.hpp"
+
+namespace floormat::entities {
+
+template<> struct entity_accessors<scenery_ref> {
+    static constexpr auto accessors()
+    {
+        using entity = Entity<scenery_ref>;
+        using frame_t = scenery::frame_t;
+        constexpr auto tuple = std::make_tuple(
+            entity::type<scenery::frame_t>::field{"frame",
+                [](const scenery_ref& x) { return x.frame.frame; },
+                [](scenery_ref& x, frame_t value) { x.frame.frame = value; },
+                [](const scenery_ref& x) { return constraints::range<frame_t>{0, !x.atlas ? frame_t(0) : frame_t(x.atlas->info().nframes)}; }
+            }
+        );
+        return tuple;
+    }
+};
+
+} // namespace floormat::entities
diff --git a/entity/concepts.hpp b/entity/concepts.hpp
index 46ec4f6a..8ab13df9 100644
--- a/entity/concepts.hpp
+++ b/entity/concepts.hpp
@@ -1,6 +1,7 @@
 #pragma once
 #include "util.hpp"
 #include "compat/function2.hpp"
+#include "compat/assert.hpp"
 #include <concepts>
 #include <type_traits>
 
diff --git a/entity/erased-constraints.cpp b/entity/erased-constraints.cpp
index 599b4164..031197eb 100644
--- a/entity/erased-constraints.cpp
+++ b/entity/erased-constraints.cpp
@@ -27,8 +27,16 @@ template<typename T> std::pair<T, T> range::convert() const
             }
             else
             {
-                fm_assert(type == type_uint);
-                return { T(min.u), T(max.u) };
+                if (type == type_int)
+                {
+                    fm_assert(min.i >= 0 && max.i >= 0);
+                    return { T(min.i), T(max.i) };
+                }
+                else
+                {
+                    fm_assert(type == type_uint);
+                    return { T(min.u), T(max.u) };
+                }
             }
         }
         else
-- 
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