advanced_portals/handler.lua

603 lines
15 KiB
Lua

--[[
Advanced Portals (advanced_portals), A minetest add-on that allows certain users to create and place portals on their minetest world.
Copyright (c) 2020 Genshin <emperor_genshin@hotmail.com>
License: GPLv3
--]]
--Delay to when handlers update
local update_interval = 25
local particle_emitter_interval = 4
--Delay to when ambiance will loop
local ambiance_interval = 200
local ambiance_list = {}
local debug = minetest.settings:get_bool("enable_portals_debug") or false
local function get_count_from_table(table)
count = 0
for k,v in pairs(table) do
count = count + 1
end
return count
end
local function do_particle_effect(pos, delay, amount, texture, min_size, max_size, radius, gravity, glow)
radius = radius or 2
min_size = min_size or 0.5
max_size = max_size or 1
gravity = gravity or -10
glow = glow or 0
delay = delay or 0.25
minetest.add_particlespawner({
amount = amount,
time = delay,
minpos = pos,
maxpos = pos,
minvel = {x = -radius, y = -radius, z = -radius},
maxvel = {x = radius, y = radius, z = radius},
minacc = {x = 0, y = gravity, z = 0},
maxacc = {x = 0, y = gravity, z = 0},
minexptime = 0.1,
maxexptime = 1,
minsize = min_size,
maxsize = max_size,
texture = texture,
glow = glow,
})
end
local function update_ambiance_to_players_within_radius(self, distance)
local pos = self.object:get_pos()
local node = self.portal_nodename
local ambiance_sound = get_portal_handler_sounds(node, "portal_ambiance")
local ambiance_distance = get_portal_handler_sounds(node, "sound_distance")
local entities = minetest.get_objects_inside_radius(pos, ambiance_distance)
local players = minetest.get_connected_players()
local within_radius = {}
--Get the following players within the radius and stack them in a table
for k,v in pairs(entities) do
local entity = v
if not entity then
within_radius = {}
break
end
if entity:is_player() then
local name = entity:get_player_name()
within_radius[name] = entity
end
end
--Check which players are ouside of radius
for _,player in pairs(players) do
local name = player:get_player_name()
if within_radius[name] then
if not ambiance_list[name] then
local ambiance = minetest.sound_play(ambiance_sound, {
object = player,
loop = true,
})
ambiance_list[name] = ambiance
end
else
if ambiance_list[name] then
minetest.sound_stop(ambiance_list[name])
ambiance_list[name] = nil
end
end
end
end
local function force_stop_ambiance_to_players()
local players = minetest.get_connected_players()
--Check which players are ouside of radius
for _,player in pairs(players) do
local name = player:get_player_name()
if name then
if ambiance_list[name] then
minetest.sound_stop(ambiance_list[name])
ambiance_list[name] = nil
end
end
end
end
--[Local Function] Teleport Player or Mob to a location or pparticle_emitter_intervalortal
local function teleport_entity(userdata, self)
local portal_data = get_portal_data(self.portal)
local linked = portal_data.linked
local linked_portal_data = nil
local pos = nil
local height = nil
local node = self.portal_nodename
local warp_sound = get_portal_handler_sounds(node, "portal_warp") or ""
local sound_distance = get_portal_handler_sounds(node, "sound_distance")
local entity_pos = userdata:get_pos()
if linked == true then
linked_portal_data = get_portal_data(portal_data.linked_portal)
if not linked_portal_data then
return
end
pos = linked_portal_data.location
--height = get_portal_handler_origin_height(self.portal_nodename, "warp_handler")
if pos == nil then
minetest.log("error", "Failed to find location of linked portal. Refusing to teleport entity to a unknown location")
return
end
if debug == true then
minetest.chat_send_all("Teleported Something! - Linked")
end
do_particle_effect(entity_pos, 0.25, 1, "warp_particle.png", 10, 20, radius, 20, 30)
userdata:set_pos({x = pos.x, y = pos.y + 3, z = pos.z})
elseif linked == false then
pos = portal_data.coordinates
if pos == nil then
minetest.log("error", "Failed to find specified destination. Refusing to teleport entity to a unknown location")
return
end
if debug == true then
minetest.chat_send_all("Teleported Something! - Not Linked")
end
do_particle_effect(entity_pos, 5, 25, "warp_particle.png", math.random(5,10), math.random(10,20), radius, 20, 10)
userdata:set_pos(pos)
end
if userdata:is_player() then
local name = userdata:get_player_name()
if ambiance_list[name] then
minetest.sound_stop(ambiance_list[name])
ambiance_list[name] = nil
end
end
minetest.sound_play(warp_sound, {
pos = self.object:get_pos(),
max_hear_distance = sound_distance,
gain = 10.0,
})
minetest.sound_play(warp_sound, {
pos = pos,
max_hear_distance = sound_distance,
gain = 10.0,
})
return
end
--[Local Function] Get node from vertical position
local function get_node_from_vertical_pos(userdata, direction, vertical_height)
local pos = userdata:get_pos()
if direction == nil then else
if direction == "up" then
pos = {x = pos.x, y = pos.y + vertical_height, z = pos.z}
elseif direction == "down" then
pos = {x = pos.x, y = pos.y - vertical_height, z = pos.z}
end
end
local result = tostring(minetest.get_node(pos)["name"]) or "Error"
return result
end
--[Local Function] Portal Warp Handler Behavior
local function handler_step(self)
self.update_timer = self.update_timer + 1
if self.emit_particles == "true" then
self.particle_emitter_timer = self.particle_emitter_timer + 1
if self.particle_emitter_timer >= particle_emitter_interval then
local texture = get_portal_particle_values(self.portal_nodename, "texture")
local delay = get_portal_particle_values(self.portal_nodename, "delay")
local spread = get_portal_particle_values(self.portal_nodename, "spread")
local pos = self.object:get_pos()
do_particle_effect(pos, delay, 1, texture, math.random(5,8), math.random(8,12), spread, 1, 30)
self.particle_emitter_timer = 0
end
end
if self.update_timer >= update_interval then
if self.origin_height == nil then
force_stop_ambiance_to_players()
self.object:remove()
return
end
local portal_node = tostring(get_node_from_vertical_pos(self.object, "down", self.origin_height))
--minetest.chat_send_all(tostring(portal_node)..", "..tostring(self.portal_node)..", "..tostring(self.origin_height)..", "..tostring(self.portal))
if self.portal == nil or self.portal_node == nil then --delete yourself if it's not associated with a portal (failsafe)
force_stop_ambiance_to_players()
--minetest.chat_send_all("Uh Oh 2 - Handler")
self.object:remove()
return
elseif portal_node ~= self.portal_node then --No Portal below you?, if so then kill yourself (failsafe)
force_stop_ambiance_to_players()
--minetest.chat_send_all("Uh Oh 3 - Handler")
self.object:remove()
return
end
update_ambiance_to_players_within_radius(self)
local portal_data = get_portal_data(self.portal)
--If data hasn't loaded successfully, skip the rest of the stuff (failsafe)
if portal_data == nil then
return
end
self.emit_particles = get_portal_particle_values(self.portal_nodename, "flag") or self.emit_particles
local pos = self.object:get_pos()
local detected_entities = minetest.get_objects_inside_radius(pos, self.scan_radius)
local private = portal_data.private
if private == true then
local whitelist = portal_data.whitelist
for _,entity in pairs(detected_entities) do
if entity:is_player() then
if debug == true then
minetest.chat_send_all("Attempting to teleport someone! - Private")
end
local player = entity
local player_name = player:get_player_name()
for k,v in pairs(whitelist) do
local allowed = v
local pname = player:get_player_name()
if pname == allowed or player_name == self.portal_owner then
teleport_entity(player, self)
end
end
else
local npc = entity:get_luaentity()
if npc.type and npc ~= self then
if debug == true then
minetest.chat_send_all("Attempting to teleport something! - Private")
end
teleport_entity(npc.object, self)
end
end
end
elseif private == false then
for _,entity in pairs(detected_entities) do
if entity:is_player() then
if debug == true then
minetest.chat_send_all("Attempting to teleport someone! - Not Private")
end
teleport_entity(entity, self)
else
local npc = entity:get_luaentity()
if npc.type and npc ~= self then
if debug == true then
minetest.chat_send_all("Attempting to teleport something! - Not Private")
end
teleport_entity(npc.object, self)
end
end
end
end
::portal_handler_loop_end::
self.update_timer = 0
end
end
local function update_portal_nametag(self)
local portal_data = get_portal_data(self.portal)
--If data hasn't loaded successfully, skip the rest of the stuff (failsafe)
if portal_data == nil then
return
end
self.object:set_properties({
nametag = minetest.colorize("#0066ff", portal_data.nametag).."\n"..minetest.colorize("#959595", "["..portal_data.portal_name.."]")
})
end
--[Local Function] Portal Nametag Behavior
local function nametag_step(self)
self.update_timer = self.update_timer + 1
if self.update_timer >= update_interval then
if self.origin_height == nil then
--minetest.chat_send_all("Uh Oh 1 - Nametag")
self.object:remove()
return
end
local portal_node = tostring(get_node_from_vertical_pos(self.object, "down", self.origin_height))
--minetest.chat_send_all(tostring(portal_node)..", "..tostring(self.portal_node)..", "..tostring(self.origin_height)..", "..tostring(self.portal))
if self.portal == nil or self.portal_node == nil then --delete yourself if it's not associated with a portal (failsafe)
--minetest.chat_send_all("Uh Oh 2 - Nametag")
self.object:remove()
return
elseif portal_node ~= self.portal_node then --No Portal below you?, if so then kill yourself (failsafe)
--minetest.chat_send_all("Uh Oh 3 - Nametag")
self.object:remove()
return
end
local portal_data = get_portal_data(self.portal)
--If data hasn't loaded successfully, skip the rest of the stuff (failsafe)
if portal_data == nil then
return
end
update_portal_nametag(self)
self.update_timer = 0
end
end
--[Entity] Portal Teleportation Handler
minetest.register_entity("advanced_portals:portal_handler", {
physical = false,
collisionbox = {0, 0, 0, 0, 0, 0},
visual = "sprite",
glow = 30,
textures = {"portal_deactivated.png"},
visual_size = {x = 0, y = 0},
origin_height = nil,
portal = nil,
portal_node = nil,
portal_nodename = nil,
scan_radius = 2,
update_timer = 0,
particle_emitter_timer = 0,
emit_particles = "false",
particle_texture = "",
particle_delay = 0,
particle_spread = 0,
on_activate = function(self, staticdata, dtime_s)
-- load entity variables
local tmp = minetest.deserialize(staticdata)
if tmp then
for _,stat in pairs(tmp) do
self[_] = stat
end
end
self.set = self.set
self.radius = self.radius
self.object:set_armor_groups({immortal = 100}) --Can't die by anything
self.object:set_properties(self)
if debug == true then
self.object:set_properties({
nametag = "<[DEBUG]: Portal Handler Position>"
})
end
if self.portal == nil then else
local portal_data = get_portal_data(self.portal)
local current_origin_height = get_portal_handler_origin_height(self.portal_nodename, "warp_handler")
--print("[DEBUG] warp handler current_origin_height = "..current_origin_height)
if current_origin_height ~= self.origin_height then
local pos = portal_data.location
self.origin_height = current_origin_height
self.object:set_pos({x = pos.x, y = pos.y + current_origin_height, z = pos.z})
end
end
end,
get_staticdata = function(self)
local tmp = {}
for _,stat in pairs(self) do
local t = type(stat)
if t ~= 'function'
and t ~= 'nil'
and t ~= 'userdata' then
tmp[_] = self[_]
end
end
return minetest.serialize(tmp)
end,
on_punch = function(self, hitter) --Can't get punched by anything
return
end,
on_step = function(self)
handler_step(self)
end
})
--[Entity] Portal Nametag
minetest.register_entity("advanced_portals:portal_nametag", {
physical = false,
collisionbox = {0, 0, 0, 0, 0, 0},
visual = "sprite",
tag = "",
glow = 30,
textures = {"portal_deactivated.png"},
visual_size = {x = 0, y = 0},
origin_height = nil,
portal = nil,
set = false,
portal_node = nil,
portal_nodename = nil,
scan_radius = 2,
update_timer = 0,
on_activate = function(self, staticdata, dtime_s)
-- load entity variables
local tmp = minetest.deserialize(staticdata)
if tmp then
for _,stat in pairs(tmp) do
self[_] = stat
end
end
self.radius = self.radius
self.object:set_armor_groups({immortal = 100}) --Can't die by anything
self.object:set_properties(self)
update_portal_nametag(self)
if self.portal == nil then else
local portal_data = get_portal_data(self.portal)
local current_origin_height = get_portal_handler_origin_height(self.portal_nodename, "nametag")
--print("[DEBUG] nametag current_origin_height = "..current_origin_height)
if current_origin_height ~= self.origin_height then
local pos = portal_data.location
self.origin_height = current_origin_height
self.object:set_pos({x = pos.x, y = pos.y + current_origin_height, z = pos.z})
end
end
end,
get_staticdata = function(self)
local tmp = {}
for _,stat in pairs(self) do
local t = type(stat)
if t ~= 'function'
and t ~= 'nil'
and t ~= 'userdata' then
tmp[_] = self[_]
end
end
return minetest.serialize(tmp)
end,
on_punch = function(self, hitter) --Can't get punched by anything
return
end,
on_step = function(self)
nametag_step(self)
end,
})