minetest/games/devtest/mods/testentities/observers.lua
Lars Mueller 6874c358ea Allow managing object observers
-----

Co-authored-by: sfan5 <sfan5@live.de>
Co-authored-by: SmallJoker <SmallJoker@users.noreply.github.com>
2024-08-16 22:13:16 +02:00

38 lines
1.2 KiB
Lua

local function player_names_excluding(exclude_player_name)
local player_names = {}
for _, player in ipairs(minetest.get_connected_players()) do
player_names[player:get_player_name()] = true
end
player_names[exclude_player_name] = nil
return player_names
end
minetest.register_entity("testentities:observable", {
initial_properties = {
visual = "sprite",
textures = { "testentities_sprite.png" },
static_save = false,
infotext = "Punch to set observers to anyone but you"
},
on_activate = function(self)
self.object:set_armor_groups({punch_operable = 1})
assert(self.object:get_observers() == nil)
-- Using a value of `false` in the table should error.
assert(not pcall(self.object, self.object.set_observers, self.object, {test = false}))
end,
on_punch = function(self, puncher)
local puncher_name = puncher:get_player_name()
local observers = player_names_excluding(puncher_name)
self.object:set_observers(observers)
local got_observers = self.object:get_observers()
for name in pairs(observers) do
assert(got_observers[name])
end
for name in pairs(got_observers) do
assert(observers[name])
end
self.object:set_properties({infotext = "Excluding " .. puncher_name})
return true
end
})