From 26b537d5f2e4e48e0c183cca30ecb056a41cd3be Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 23 Feb 2023 09:51:16 +0100
Subject: wip

---
 entity/chunk.cpp              | 13 +++++-
 entity/constraints.hpp        |  2 +
 entity/erased-constraints.cpp | 97 ++++++++++++++++++++++++++++++++++++++-----
 entity/erased-constraints.hpp | 10 ++++-
 4 files changed, 109 insertions(+), 13 deletions(-)

(limited to 'entity')

diff --git a/entity/chunk.cpp b/entity/chunk.cpp
index 6857ac1d..f7b9aadc 100644
--- a/entity/chunk.cpp
+++ b/entity/chunk.cpp
@@ -2,6 +2,7 @@
 #include "entity/accessor.hpp"
 #include "src/scenery.hpp"
 #include "src/anim-atlas.hpp"
+#include "src/tile-defs.hpp"
 
 namespace floormat::entities {
 
@@ -11,10 +12,20 @@ template<> struct entity_accessors<scenery_ref> {
         using entity = Entity<scenery_ref>;
         using frame_t = scenery::frame_t;
         constexpr auto tuple = std::make_tuple(
-            entity::type<scenery::frame_t>::field{"frame",
+            entity::type<scenery::frame_t>::field{"frame"_s,
                 [](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)}; }
+            },
+            entity::type<Vector2b>::field{"offset"_s,
+                [](const scenery_ref& x) { return x.frame.offset; },
+                [](scenery_ref& x, Vector2b value) { x.frame.offset = value; },
+                constantly(constraints::range{Vector2b(iTILE_SIZE2/-2), Vector2b(iTILE_SIZE2/2)})
+            },
+            // todo pass_mode enum
+            entity::type<bool>::field{"interactive"_s,
+                [](const scenery_ref& x) { return x.frame.interactive; },
+                [](scenery_ref& x, bool value) { x.frame.interactive = value; }
             }
         );
         return tuple;
diff --git a/entity/constraints.hpp b/entity/constraints.hpp
index 99705047..cfe33bfe 100644
--- a/entity/constraints.hpp
+++ b/entity/constraints.hpp
@@ -18,6 +18,8 @@ template<typename T> struct range
     constexpr bool operator==(const range&) const noexcept = default;
 };
 
+template<typename T> range(T min, T max) -> range<T>;
+
 template<typename T>
 constexpr range<T>::operator erased_constraints::range() const noexcept
 {
diff --git a/entity/erased-constraints.cpp b/entity/erased-constraints.cpp
index 031197eb..0826075e 100644
--- a/entity/erased-constraints.cpp
+++ b/entity/erased-constraints.cpp
@@ -3,15 +3,28 @@
 #include <cstdint>
 #include <cmath>
 #include <limits>
+#include <Magnum/Magnum.h>
+#include <Magnum/Math/Vector2.h>
+#include <Magnum/Math/Vector3.h>
+#include <Magnum/Math/Vector4.h>
 
 static_assert(sizeof(std::size_t) == sizeof(std::uintptr_t));
 static_assert(sizeof(std::size_t) == sizeof(std::ptrdiff_t));
 
 namespace floormat::entities::erased_constraints {
 
+namespace {
+template<typename T> struct is_magnum_vector_ final : std::false_type {};
+template<std::size_t N, typename T> struct is_magnum_vector_<Math::Vector<N, T>> : std::true_type {};
+template<typename T> struct is_magnum_vector_<Math::Vector2<T>> : std::true_type {};
+template<typename T> struct is_magnum_vector_<Math::Vector3<T>> : std::true_type {};
+template<typename T> struct is_magnum_vector_<Math::Vector4<T>> : std::true_type {};
+template<typename T> constexpr bool is_magnum_vector = is_magnum_vector_<T>::value;
+} // namespace
+
 template<typename T> std::pair<T, T> range::convert() const
 {
-    static_assert(sizeof(T) <= sizeof(std::size_t));
+    static_assert(sizeof(T)*2 <= sizeof(*this));
     using limits = std::numeric_limits<T>;
 
     if (type == type_none)
@@ -39,6 +52,47 @@ template<typename T> std::pair<T, T> range::convert() const
                 }
             }
         }
+        else if constexpr(is_magnum_vector<T>)
+        {
+            using U = typename T::Type;
+            constexpr auto Size = T::Size;
+            static_assert(Size >= 2 && Size <= 4);
+            T a, b;
+            if constexpr(std::is_integral_v<U>)
+            {
+                if constexpr(std::is_signed_v<U>)
+                {
+                    fm_assert(type == type_int4);
+                    for (std::size_t i = 0; i < Size; i++)
+                        a[i] = U(min.i4[i]), b[i] = U(max.i4[i]);
+                }
+                else
+                {
+                    if (type == type_int4)
+                    {
+                        for (std::size_t i = 0; i < Size; i++)
+                        {
+                            fm_assert(min.i4[i] >= 0 && max.i4[i] >= 0);
+                            a[i] = U(min.i4[i]), b[i] = U(max.i4[i]);
+                        }
+                    }
+                    else
+                    {
+                        fm_assert(type == type_uint4);
+                        for (std::size_t i = 0; i < Size; i++)
+                            a[i] = U(min.i4[i]), b[i] = U(max.i4[i]);
+                    }
+                }
+            }
+            else
+            {
+                static_assert(std::is_floating_point_v<U>);
+                fm_assert(type == type_float4);
+                for (std::size_t i = 0; i < Size; i++)
+                    a[i] = U(min.f4[i]), b[i] = U(max.f4[i]);
+            }
+            return { a, b };
+        }
         else
         {
             static_assert(std::is_floating_point_v<T>);
@@ -48,16 +102,37 @@ template<typename T> std::pair<T, T> range::convert() const
     }
 }
 
-template std::pair<std::uint8_t, std::uint8_t> range::convert() const;
-template std::pair<std::uint16_t, std::uint16_t> range::convert() const;
-template std::pair<std::uint32_t, std::uint32_t> range::convert() const;
-template std::pair<std::uint64_t, std::uint64_t> range::convert() const;
-template std::pair<std::int8_t, std::int8_t> range::convert() const;
-template std::pair<std::int16_t, std::int16_t> range::convert() const;
-template std::pair<std::int32_t, std::int32_t> range::convert() const;
-template std::pair<std::int64_t, std::int64_t> range::convert() const;
-template std::pair<float, float> range::convert() const;
-template std::pair<double, double> range::convert() const;
+template<typename T> using pair2 = std::pair<T, T>;
+
+template pair2<std::uint8_t> range::convert() const;
+template pair2<std::uint16_t> range::convert() const;
+template pair2<std::uint32_t> range::convert() const;
+template pair2<std::uint64_t> range::convert() const;
+template pair2<std::int8_t> range::convert() const;
+template pair2<std::int16_t> range::convert() const;
+template pair2<std::int32_t> range::convert() const;
+template pair2<float> range::convert() const;
+template pair2<Vector2ub> range::convert() const;
+template pair2<Vector2us> range::convert() const;
+template pair2<Vector2ui> range::convert() const;
+template pair2<Vector2b> range::convert() const;
+template pair2<Vector2s> range::convert() const;
+template pair2<Vector2i> range::convert() const;
+template pair2<Vector2> range::convert() const;
+template pair2<Vector3ub> range::convert() const;
+template pair2<Vector3us> range::convert() const;
+template pair2<Vector3ui> range::convert() const;
+template pair2<Vector3b> range::convert() const;
+template pair2<Vector3s> range::convert() const;
+template pair2<Vector3i> range::convert() const;
+template pair2<Vector3> range::convert() const;
+template pair2<Vector4ub> range::convert() const;
+template pair2<Vector4us> range::convert() const;
+template pair2<Vector4ui> range::convert() const;
+template pair2<Vector4b> range::convert() const;
+template pair2<Vector4s> range::convert() const;
+template pair2<Vector4i> range::convert() const;
+template pair2<Vector4> range::convert() const;
 
 bool operator==(const range& a, const range& b)
 {
diff --git a/entity/erased-constraints.hpp b/entity/erased-constraints.hpp
index 5a6cb939..c77d8166 100644
--- a/entity/erased-constraints.hpp
+++ b/entity/erased-constraints.hpp
@@ -1,5 +1,6 @@
 #pragma once
 #include <Corrade/Containers/StringView.h>
+#include <Magnum/Math/Vector4.h>
 
 namespace floormat::entities::erased_constraints {
 
@@ -7,11 +8,18 @@ struct range final
 {
     using U = std::size_t;
     using I = std::make_signed_t<U>;
-    enum type_ : unsigned char { type_none, type_float, type_uint, type_int, };
+    enum type_ : unsigned char {
+        type_none,
+        type_float, type_uint, type_int,
+        type_float4, type_uint4, type_int4,
+    };
     union element {
         float f;
         U u;
         I i;
+        Math::Vector4<float> f4;
+        Math::Vector4<U> u4;
+        Math::Vector4<I> i4;
     };
 
     element min {.i = 0}, max {.i = 0};
-- 
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