Add frame optional support

- [frame](https://github.com/minetest-mods/frame)

I also removed unused variable `use_moreores`.

3d_armor/armor.lua

@@ -1,6 +1,9 @@
 -- support for i18n
 local S = armor_i18n.gettext
 
+-- frame compatibility
+local use_frame = minetest.get_modpath("frame")
+
 armor:register_armor("3d_armor:helmet_admin", {
 	description = S("Admin Helmet"),
 	inventory_image = "3d_armor_inv_helmet_admin.png",
@@ -344,3 +347,17 @@ for k, v in pairs(armor.materials) do
 		},
 	})
 end
+
+-- add frame compatibility
+if use_frame then
+	frame.register("3d_armor:helmet_admin")
+	frame.register("3d_armor:chestplate_admin")
+	frame.register("3d_armor:leggings_admin")
+	frame.register("3d_armor:boots_admin")
+	for k, v in pairs(armor.materials) do
+		frame.register("3d_armor:helmet_"..k)
+		frame.register("3d_armor:chestplate_"..k)
+		frame.register("3d_armor:leggings_"..k)
+		frame.register("3d_armor:boots_"..k)
+	end
+end

3d_armor/depends.txt

@@ -3,6 +3,7 @@ player_monoids?
 armor_monoid?
 pova?
 fire?
+frame?
 ethereal?
 bakedclay?
 intllib?

3d_armor_stand/depends.txt

@@ -1,2 +1 @@
 3d_armor
-

shields/depends.txt

@@ -1,2 +1,3 @@
 default
 3d_armor
+frame?

shields/init.lua

@@ -2,7 +2,7 @@
 local S = armor_i18n.gettext
 
 local disable_sounds = minetest.settings:get_bool("shields_disable_sounds")
-local use_moreores = minetest.get_modpath("moreores")
+local use_frame = minetest.get_modpath("frame")
 local function play_sound_effect(player, name)
 	if not disable_sounds and player then
 		local pos = player:get_pos()
@@ -225,3 +225,17 @@ for k, v in pairs(armor.materials) do
 		},
 	})
 end
+
+-- Add compatibility with frame
+if use_frame then
+	frame.register("shields:shield_admin")
+	if armor.materials.wood then
+		frame.register("shields:shield_enhanced_wood")
+	end
+	if armor.materials.cactus then
+		frame.register("shields:shield_enhanced_cactus")
+	end
+	for k, v in pairs(armor.materials) do
+		frame.register("shields:shield_"..k)
+	end
+end