Added support for 3d_armor mod:

+ Custom hotbar equipment system

_arena_lib/arena_callbacks.lua

@@ -21,6 +21,7 @@ arena_lib.on_start("skywars", function(arena)
 
   for pl_name in pairs(arena.players) do
     local player = minetest.get_player_by_name(pl_name)
+    skywars.activate_hotbar(player)
 
     skywars.generate_HUD(arena, pl_name)
     player:set_physics_override({speed=arena.players[pl_name].speed})
@@ -34,7 +35,11 @@ end)
 
 arena_lib.on_celebration("skywars", function(arena, winner_name)
   for pl_name in pairs(arena.players) do
+    local player = minetest.get_player_by_name(pl_name)
+
+    skywars.deactivate_hotbar(player)
     skywars.remove_HUD(arena, pl_name)
+    skywars.remove_all(player)
   end
 end)
 
@@ -46,6 +51,7 @@ arena_lib.on_end("skywars", function(arena, players)
   for pl_name in pairs(arena.players) do
     local player = minetest.get_player_by_name(pl_name)
     
+    skywars.remove_all(player)
     -- restore player's original speed
     player:set_physics_override({speed=arena.players[pl_name].speed})
   end
@@ -54,6 +60,8 @@ end)
 
 
 arena_lib.on_death("skywars", function(arena, pl_name, reason)
+  local player = minetest.get_player_by_name(pl_name)
+
   if reason.type == "punch" then
     if reason.object ~= nil and reason.object:is_player() then
       local killer = reason.object:get_player_name()
@@ -67,6 +75,8 @@ arena_lib.on_death("skywars", function(arena, pl_name, reason)
     arena_lib.send_message_players_in_arena(arena, skywars_settings.prefix .. skywars.T("@1 is dead", pl_name))
   end
 
+  skywars.remove_all(player)
+  skywars.deactivate_hotbar(player)
   arena_lib.remove_player_from_arena(pl_name, 1)
   skywars.update_players_counter(arena)
 end)
@@ -74,6 +84,7 @@ end)
 
 
 arena_lib.on_quit("skywars", function(arena, pl_name)
+  skywars.deactivate_hotbar(minetest.get_player_by_name(pl_name))
   skywars.update_players_counter(arena, false)
   skywars.remove_HUD(arena, pl_name)
 end)
@@ -81,14 +92,21 @@ end)
 
 
 arena_lib.on_disconnect("skywars", function(arena, pl_name)
+  local player = minetest.get_player_by_name(pl_name)
+  skywars.deactivate_hotbar(player)
   skywars.update_players_counter(arena, false)
+  skywars.remove_all(player)
 end)
 
 
 
-arena_lib.on_kick("skywars", function(arena, pl_name)
+arena_lib.on_kick("skywars", function(arena, pl_name) 
+  local player = minetest.get_player_by_name(pl_name)
+
+  skywars.deactivate_hotbar(player)
   skywars.update_players_counter(arena, false)
   skywars.remove_HUD(arena, pl_name)
+  skywars.remove_all(player)
 end)
 
 
@@ -113,6 +131,10 @@ end)
 arena_lib.on_timer_tick("skywars", function(arena)
   arena.time_passed = arena.time_passed + 1
 
+  for pl_name in pairs(arena.players) do
+    skywars.apply_armor_slots(minetest.get_player_by_name(pl_name))
+  end
+
   if arena.time_passed % 5 == 0 then
     skywars.kill_players_out_map(arena)
   end

_compatible_mods/_3d_armor/armors.lua

@@ -0,0 +1,13 @@
+for name in pairs(minetest.registered_items) do
+    if armor:get_element(name) ~= nil then
+        minetest.override_item(name, {
+            on_secondary_use = function(itemstack, user)
+                local pl_name = user:get_player_name()
+                local arena
+                if arena_lib.is_player_in_arena(pl_name, "skywars") and arena_lib.get_arena_by_player(pl_name).in_loading == false then
+                    skywars.add_armor(minetest.get_player_by_name(pl_name), itemstack:get_name())
+                end
+            end
+        })
+    end
+end

_compatible_mods/_3d_armor/hotbar.lua

@@ -0,0 +1,21 @@
+function skywars.activate_hotbar(player)
+    local meta = player:get_meta()
+
+    meta:set_string("hotbar", player:hud_get_hotbar_image())
+    meta:set_int("itemcount", player:hud_get_hotbar_itemcount())
+    meta:set_string("hotbar_selected", player:hud_get_hotbar_selected_image())
+
+    player:hud_set_hotbar_itemcount(10)
+    player:hud_set_hotbar_image("hotbar.png")
+    player:hud_set_hotbar_selected_image("hotbar_selected.png")
+end
+
+
+
+function skywars.deactivate_hotbar(player)
+    local meta = player:get_meta()
+    
+    player:hud_set_hotbar_itemcount(meta:get_int("itemcount"))
+    player:hud_set_hotbar_image(meta:get_string("hotbar"))
+    player:hud_set_hotbar_selected_image(meta:get_string("hotbar_selected"))
+end

_compatible_mods/_3d_armor/init.lua

@@ -0,0 +1,16 @@
+minetest.register_on_mods_loaded(function()
+    local mod_exists = false
+
+    for i=1, #minetest.get_modnames() do
+        if minetest.get_modnames()[i] == "3d_armor" then 
+            mod_exists = true
+            break
+        end
+    end
+
+    if mod_exists then
+        dofile(minetest.get_modpath("skywars") .. "/_compatible_mods/_3d_armor/utils.lua")
+        dofile(minetest.get_modpath("skywars") .. "/_compatible_mods/_3d_armor/hotbar.lua")
+        dofile(minetest.get_modpath("skywars") .. "/_compatible_mods/_3d_armor/armors.lua")
+    end
+end)

_compatible_mods/_3d_armor/utils.lua

@@ -0,0 +1,120 @@
+local slot_type = {[0] = "feet", [1] = "legs", [2] = "torso", [3] = "head"}
+
+
+local function move_armor_to_slot(player, armor_name)
+    local armor_type = armor:get_element(armor_name)
+    local slots = player:hud_get_hotbar_itemcount()
+    local inv = player:get_inventory()
+
+    local function switch_items(slot_offset)
+        local wielded_armor = inv:get_stack("main", slots-slot_offset)
+
+        inv:set_stack("main", slots-slot_offset, ItemStack(armor_name))
+        minetest.after(0, function() inv:set_stack("main", player:get_wield_index(), ItemStack(wielded_armor:get_name())) end)
+    end
+
+    -- if the armor is equal to one of the slot types then switch the items
+    for i=0, 4 do
+        if armor_type == slot_type[i] then
+            switch_items(i)
+        end
+    end
+end
+
+
+
+local function get_weared_armor(player)
+    local pl_name, armor_inv = armor:get_valid_player(player, "[add_armor_inventory]")
+    local weared_armor = {} -- "type" = "armor"
+
+    -- Stores the weared armor types and items  
+    for i=1, armor_inv:get_size("armor") do
+        local item_name = armor_inv:get_stack("armor", i):get_name()
+        local type = armor:get_element(item_name)
+
+        if type ~= nil then
+            weared_armor[type] = item_name
+        end
+    end
+
+    return weared_armor 
+end
+
+
+
+function skywars.add_armor(player, armor_name, update_slots)
+    local pl_name, armor_inv = armor:get_valid_player(player, "[add_armor_inventory]")
+
+    if not pl_name then
+        return
+    elseif armor:get_element(armor_name) == nil then
+        return
+    end
+
+    local weared_armor = get_weared_armor(player)
+    local armor_type = armor:get_element(armor_name) -- (the type is called element by 3d_armor)
+
+    -- Checks if there's an armor with this type already
+    if weared_armor[armor_type] ~= nil then
+        armor_inv:remove_item("armor", ItemStack(weared_armor[armor_type]))
+    end
+    armor_inv:add_item("armor", ItemStack(armor_name))
+    if update_slots == nil or update_slots then move_armor_to_slot(player, armor_name) end
+    
+    armor:set_player_armor(player)
+    armor:save_armor_inventory(player)
+end
+
+
+
+function skywars.remove_all(player)
+    local name, armor_inv = armor:get_valid_player(player, "[remove_all]")
+    
+	if not name then
+		return
+    end
+    
+	armor_inv:set_list("armor", {})
+	armor:set_player_armor(player)
+	armor:save_armor_inventory(player)
+end
+
+
+
+function skywars.remove_armor(player, armor_name)
+    local pl_name, armor_inv = armor:get_valid_player(player, "[add_armor_inventory]")
+
+    if not pl_name then
+        return
+    elseif armor:get_element(armor_name) == nil then
+        return
+    end
+
+    armor_inv:remove_item("armor", ItemStack(armor_name))
+    
+    armor:set_player_armor(player)
+    armor:save_armor_inventory(player)
+end
+
+
+
+function skywars.apply_armor_slots(player)
+    local name, armor_inv = armor:get_valid_player(player, "[apply_slots]")
+	if not name then return end
+    local slots = player:hud_get_hotbar_itemcount()
+    local inv = player:get_inventory()
+    local weared_armor = get_weared_armor(player)  -- "type" = "armor"
+    local function get_armor_type(slot_offset) return armor:get_element(inv:get_stack("main", slots-slot_offset):get_name()) end
+    
+    -- iterate over each armor slot
+    for slot = 0, 4 do
+        -- if the slot is empty remove that armor type, otherwise add the armor that it contains
+        if get_armor_type(slot) == nil and weared_armor[slot_type[slot]] ~= nil then
+            skywars.remove_armor(player, weared_armor[slot_type[slot]])
+        -- if the slot contains an armor and it is the same as the slot type equip it
+        elseif get_armor_type(slot) ~= nil and get_armor_type(slot) == slot_type[slot] then
+            skywars.add_armor(player, inv:get_stack("main", slots-slot):get_name(), false)
+        end
+    end
+    
+end

commands.lua

@@ -1,6 +1,5 @@
 ChatCmdBuilder.new("skywars", 
 function(cmd)
-
     cmd:sub("tutorial", 
     function(sender)
         skywars.print_msg(sender, [[

init.lua

@@ -33,6 +33,7 @@ arena_lib.register_minigame("skywars", {
 
 
 dofile(minetest.get_modpath("skywars") .. "/chatcmdbuilder.lua")
+dofile(minetest.get_modpath("skywars") .. "/_compatible_mods/_3d_armor/init.lua")
 dofile(minetest.get_modpath("skywars") .. "/_storage/storage_manager.lua")
 dofile(minetest.get_modpath("skywars") .. "/_hud/hud_manager.lua")
 dofile(minetest.get_modpath("skywars") .. "/commands.lua")