Improve API for third party mods (#21)

* Add `armor:update_skin(player_name)` function (useful for skin mods)
* Add option to prevent physics override (useful for Techage Jetpack mod)
* Add documentation

3d_armor/README.txt

@@ -172,6 +172,10 @@ armor:unequip(player, armor_name)
 
 Unequip the armor, adding the itemstack to the main inventory.
 
+armor:update_skin(player_name)
+
+Triggers a skin update with the same action as if a field with `skins_set` was submitted.
+
 Item Callbacks:
 
 on_equip = func(player, index, stack)
@@ -201,3 +205,8 @@ armor:register_on_update(function(player)
 	print(player:get_player_name().." armor updated!")
 end)
 
+
+Note:
+
+The player physics modifications won't be applied via `set_physics_override` if `player_physics_locked` is set to 1
+in the respective player's meta.

3d_armor/api.lua

@@ -315,7 +315,10 @@ armor.set_player_armor = function(self, player)
 		})
 		pova.do_override(player)
 	else
-		player:set_physics_override(physics)
+		local player_physics_locked = player:get_meta():get_int("player_physics_locked")
+		if player_physics_locked == nil or player_physics_locked == 0 then
+			player:set_physics_override(physics)
+		end
 	end
 	self.textures[name].armor = texture
 	self.textures[name].preview = preview
@@ -490,6 +493,16 @@ armor.get_player_skin = function(self, name)
 	return armor.default_skin..".png"
 end
 
+armor.update_skin = function(self, name)
+	minetest.after(0, function()
+		local pplayer = minetest.get_player_by_name(name)
+		if pplayer then
+			self.textures[name].skin = self:get_player_skin(name)
+			self:set_player_armor(pplayer)
+		end
+	end)
+end
+
 armor.add_preview = function(self, preview)
 	skin_previews[preview] = true
 end

3d_armor/init.lua

@@ -295,14 +295,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
   local player_name = player:get_player_name()
 	for field, _ in pairs(fields) do
 		if string.find(field, "skins_set") then
-			minetest.after(0, function()
-        local pplayer = minetest.get_player_by_name(player_name)
-        if player then
-          local skin = armor:get_player_skin(name)
-          armor.textures[name].skin = skin
-          armor:set_player_armor(pplayer)
-        end
-			end)
+			armor:update_skin(player_name)
 		end
 	end
 end)