lua: add __eq to some other metatables

src/app/script/cel_class.cpp

@@ -21,6 +21,14 @@ using namespace doc;
 
 namespace {
 
+int Cel_eq(lua_State* L)
+{
+  const auto a = get_ptr<Cel>(L, 1);
+  const auto b = get_ptr<Cel>(L, 2);
+  lua_pushboolean(L, a->id() == b->id());
+  return 1;
+}
+
 int Cel_get_sprite(lua_State* L)
 {
   auto cel = get_ptr<Cel>(L, 1);
@@ -57,6 +65,7 @@ int Cel_get_bounds(lua_State* L)
 }
 
 const luaL_Reg Cel_methods[] = {
+  { "__eq", Cel_eq },
   { nullptr, nullptr }
 };
 

src/app/script/layer_class.cpp

@@ -24,6 +24,14 @@ using namespace doc;
 
 namespace {
 
+int Layer_eq(lua_State* L)
+{
+  const auto a = get_ptr<Layer>(L, 1);
+  const auto b = get_ptr<Layer>(L, 2);
+  lua_pushboolean(L, a->id() == b->id());
+  return 1;
+}
+
 int Layer_get_sprite(lua_State* L)
 {
   auto layer = get_ptr<Layer>(L, 1);
@@ -88,6 +96,7 @@ int Layer_set_opacity(lua_State* L)
 }
 
 const luaL_Reg Layer_methods[] = {
+  { "__eq", Layer_eq },
   { nullptr, nullptr }
 };
 

src/app/script/point_class.cpp

@@ -50,6 +50,14 @@ int Point_gc(lua_State* L)
   return 0;
 }
 
+int Point_eq(lua_State* L)
+{
+  const auto a = get_obj<gfx::Point>(L, 1);
+  const auto b = get_obj<gfx::Point>(L, 2);
+  lua_pushboolean(L, *a == *b);
+  return 1;
+}
+
 int Point_get_x(lua_State* L)
 {
   const auto pt = get_obj<gfx::Point>(L, 1);
@@ -80,6 +88,7 @@ int Point_set_y(lua_State* L)
 
 const luaL_Reg Point_methods[] = {
   { "__gc", Point_gc },
+  { "__eq", Point_eq },
   { nullptr, nullptr }
 };
 

src/app/script/rectangle_class.cpp

@@ -56,6 +56,14 @@ int Rectangle_gc(lua_State* L)
   return 0;
 }
 
+int Rectangle_eq(lua_State* L)
+{
+  const auto a = get_obj<gfx::Rect>(L, 1);
+  const auto b = get_obj<gfx::Rect>(L, 2);
+  lua_pushboolean(L, *a == *b);
+  return 1;
+}
+
 int Rectangle_get_x(lua_State* L)
 {
   const auto rc = get_obj<gfx::Rect>(L, 1);
@@ -121,6 +129,7 @@ int Rectangle_get_isEmpty(lua_State* L)
 
 const luaL_Reg Rectangle_methods[] = {
   { "__gc", Rectangle_gc },
+  { "__eq", Rectangle_eq },
   { nullptr, nullptr }
 };
 

src/app/script/size_class.cpp

@@ -50,6 +50,14 @@ int Size_gc(lua_State* L)
   return 0;
 }
 
+int Size_eq(lua_State* L)
+{
+  const auto a = get_obj<gfx::Size>(L, 1);
+  const auto b = get_obj<gfx::Size>(L, 2);
+  lua_pushboolean(L, *a == *b);
+  return 1;
+}
+
 int Size_get_width(lua_State* L)
 {
   const auto sz = get_obj<gfx::Size>(L, 1);
@@ -84,6 +92,7 @@ int Size_set_height(lua_State* L)
 
 const luaL_Reg Size_methods[] = {
   { "__gc", Size_gc },
+  { "__eq", Size_eq },
   { nullptr, nullptr }
 };
 

src/app/script/slice_class.cpp

@@ -22,6 +22,14 @@ using namespace doc;
 
 namespace {
 
+int Slice_eq(lua_State* L)
+{
+  const auto a = get_ptr<Slice>(L, 1);
+  const auto b = get_ptr<Slice>(L, 2);
+  lua_pushboolean(L, a->id() == b->id());
+  return 1;
+}
+
 int Slice_get_sprite(lua_State* L)
 {
   auto slice = get_ptr<Slice>(L, 1);
@@ -81,6 +89,7 @@ int Slice_get_pivot(lua_State* L)
 }
 
 const luaL_Reg Slice_methods[] = {
+  { "__eq", Slice_eq },
   { nullptr, nullptr }
 };
 

src/app/script/tag_class.cpp

@@ -23,6 +23,14 @@ using namespace doc;
 
 namespace {
 
+int Tag_eq(lua_State* L)
+{
+  const auto a = get_ptr<FrameTag>(L, 1);
+  const auto b = get_ptr<FrameTag>(L, 2);
+  lua_pushboolean(L, a->id() == b->id());
+  return 1;
+}
+
 int Tag_get_fromFrame(lua_State* L)
 {
   auto tag = get_ptr<FrameTag>(L, 1);
@@ -104,6 +112,7 @@ int Tag_set_aniDir(lua_State* L)
 }
 
 const luaL_Reg Tag_methods[] = {
+  { "__eq", Tag_eq },
   { nullptr, nullptr }
 };