creative_regions/arena.lua

minetest.register_privilege("arena", {
	description = "Player is involved in an arena battle.",
	give_to_singleplayer= false,
})

local drop = function(pos, itemstack)
	local obj = minetest.add_item(pos, itemstack:take_item(itemstack:get_count()))
	if obj then
		obj:set_velocity({
			x = math.random(-10, 10) / 9,
			y = 5,
			z = math.random(-10, 10) / 9,
		})
	end
end

function creative_regions.drop_everything(player, drop_bones)
		local player_inventory_lists = { "main", "craft" }
		local player_inv = player:get_inventory()
		local pos = player:get_pos()

		--minetest.find_node_near(pos, radius, nodenames)

		for _, list_name in ipairs(player_inventory_lists) do
			for i = 1, player_inv:get_size(list_name) do
				drop(pos, player_inv:get_stack(list_name, i))
			end
			player_inv:set_list(list_name, {})
		end
		if drop_bones then
			drop(pos, ItemStack("bones:bones"))
--			minetest.item_drop(itemstack, player, pos)
		end
end

minetest.register_on_dieplayer(function(player)
--	minetest.chat_send_all(player:get_player_name().." lost.")
	local player_name = player:get_player_name()
	if minetest.check_player_privs(player_name, {arena=true}) then
		creative_regions.drop_everything(player, true)
		local privs = minetest.get_player_privs(player_name)
		privs["arena"] = nil
		minetest.set_player_privs(player_name, privs)
	end
end)

minetest.register_on_leaveplayer(function(player)
--	minetest.chat_send_all(player:get_player_name().." has left this awesome game.")
	local player_name = player:get_player_name()
	if minetest.check_player_privs(player_name, {arena=true}) then
		creative_regions.drop_everything(player, true)
		local privs = minetest.get_player_privs(player_name)
		privs["arena"] = nil
		minetest.set_player_privs(player_name, privs)
	end
end)

if minetest.get_modpath("areas") then

	minetest.register_node("creative_regions:protector_arena", {
		description = "Arena protector",
		tiles = {"creative_regions_protector_arena.png"},
		tiles = {"default_cobble.png^default_tool_diamondsword.png"},
		is_ground_content = true,
		groups = {snappy=2,choppy=2,oddly_breakable_by_hand=1},
		light_source = 1,
		after_place_node = function(pos, placer, itemstack, pointed_thing)
			return creative_regions.protector_set_area_privs(pos, placer, itemstack, pointed_thing, "-creative -fast, -fly, +arena", "Arena Protector")
		end,
		can_dig = creative_regions.protector_can_dig,
		after_dig_node = function(pos, oldnode, oldmetadata, digger)
			return creative_regions.protector_remove_area_privs(pos, oldnode, oldmetadata, digger, "Arena protector")
		end
	})

end