minetest-mods/teleport_potion/init.lua

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--= Teleport Potion mod by TenPlus1
-- Create teleport potion or pad, place then right-click to enter coords
-- and step onto pad or walk into the blue portal light, portal closes after
-- 10 seconds, pad remains, potions are throwable... SFX are license Free...
-- Load support for intllib.
local MP = minetest.get_modpath(minetest.get_current_modname())
local S, NS = dofile(MP.."/intllib.lua")
-- max teleport distance
local dist = tonumber(minetest.settings:get("map_generation_limit") or 31000)
-- creative check
local creative_mode_cache = minetest.settings:get_bool("creative_mode")
local function is_creative(name)
return creative_mode_cache or minetest.check_player_privs(name, {creative = true})
end
local check_coordinates = function(str)
if not str or str == "" then
return nil
end
-- get coords from string
local x, y, z = string.match(str, "^(-?%d+),(-?%d+),(-?%d+)$")
-- check coords
if x == nil or string.len(x) > 6
or y == nil or string.len(y) > 6
or z == nil or string.len(z) > 6 then
return nil
end
-- convert string coords to numbers
x = tonumber(x)
y = tonumber(y)
z = tonumber(z)
-- are coords in map range ?
if x > dist or x < -dist
or y > dist or y < -dist
or z > dist or z < -dist then
return nil
end
-- return ok coords
return {x = x, y = y, z = z}
end
-- particle effects
local function tp_effect(pos)
minetest.add_particlespawner({
amount = 20,
time = 0.25,
minpos = pos,
maxpos = pos,
minvel = {x = -2, y = 1, z = -2},
maxvel = {x = 2, y = 2, z = 2},
minacc = {x = 0, y = -2, z = 0},
maxacc = {x = 0, y = -4, z = 0},
minexptime = 0.1,
maxexptime = 1,
minsize = 0.5,
maxsize = 1.5,
texture = "particle.png",
glow = 15,
})
end
local teleport_destinations = {}
local function set_teleport_destination(playername, dest)
teleport_destinations[playername] = dest
tp_effect(dest)
minetest.sound_play("portal_open", {
pos = dest,
gain = 1.0,
max_hear_distance = 10
})
end
--------------------------------------------------------------------------------
--- Teleport portal
--------------------------------------------------------------------------------
minetest.register_node("teleport_potion:portal", {
drawtype = "plantlike",
tiles = {
{name="portal.png",
animation = {
type = "vertical_frames",
aspect_w = 16,
aspect_h = 16,
length = 1.0
}
}
},
light_source = 13,
walkable = false,
paramtype = "light",
pointable = false,
buildable_to = true,
waving = 1,
sunlight_propagates = true,
damage_per_second = 1, -- walking into portal hurts player
-- start timer when portal appears
on_construct = function(pos)
minetest.get_node_timer(pos):start(10)
end,
-- remove portal after 10 seconds
on_timer = function(pos)
minetest.sound_play("portal_close", {
pos = pos,
gain = 1.0,
max_hear_distance = 10
})
minetest.remove_node(pos)
end,
on_blast = function() end,
drop = {},
})
-- Throwable potion
local function throw_potion(itemstack, player)
local playerpos = player:get_pos()
local obj = minetest.add_entity({
x = playerpos.x,
y = playerpos.y + 1.5,
z = playerpos.z
}, "teleport_potion:potion_entity")
local dir = player:get_look_dir()
local velocity = 20
obj:set_velocity({
x = dir.x * velocity,
y = dir.y * velocity,
z = dir.z * velocity
})
obj:set_acceleration({
x = dir.x * -3,
y = -9.5,
z = dir.z * -3
})
obj:set_yaw(player:get_look_horizontal())
obj:get_luaentity().player = player
end
local potion_entity = {
physical = true,
visual = "sprite",
visual_size = {x = 1.0, y = 1.0},
textures = {"potion.png"},
collisionbox = {0,0,0,0,0,0},
lastpos = {},
player = "",
}
potion_entity.on_step = function(self, dtime)
if not self.player then
self.object:remove()
return
end
local pos = self.object:get_pos()
if self.lastpos.x ~= nil then
local vel = self.object:get_velocity()
-- only when potion hits something physical
if vel.x == 0
or vel.y == 0
or vel.z == 0 then
if self.player ~= "" then
-- round up coords to fix glitching through doors
self.lastpos = vector.round(self.lastpos)
self.player:set_pos(self.lastpos)
minetest.sound_play("portal_close", {
pos = self.lastpos,
gain = 1.0,
max_hear_distance = 5
})
tp_effect(self.lastpos)
end
self.object:remove()
return
end
end
self.lastpos = pos
end
minetest.register_entity("teleport_potion:potion_entity", potion_entity)
--------------------------------------------------------------------------------
--- Teleport potion
--------------------------------------------------------------------------------
minetest.register_node("teleport_potion:potion", {
tiles = {"pad.png"},
drawtype = "signlike",
paramtype = "light",
paramtype2 = "wallmounted",
walkable = false,
sunlight_propagates = true,
description = S("Teleport Potion (use to set destination; place to open portal)"),
inventory_image = "potion.png",
wield_image = "potion.png",
groups = {dig_immediate = 3, vessel = 1},
selection_box = {type = "wallmounted"},
on_use = function(itemstack, user, pointed_thing)
if pointed_thing.type == "node" then
set_teleport_destination(user:get_player_name(), pointed_thing.above)
else
throw_potion(itemstack, user)
if not is_creative(user:get_player_name()) then
itemstack:take_item()
return itemstack
end
end
end,
after_place_node = function(pos, placer, itemstack, pointed_thing)
local name = placer:get_player_name()
local dest = teleport_destinations[name]
if dest then
minetest.set_node(pos, {name = "teleport_potion:portal"})
local meta = minetest.get_meta(pos)
-- Set portal destination
meta:set_int("x", dest.x)
meta:set_int("y", dest.y)
meta:set_int("z", dest.z)
-- Portal open effect and sound
tp_effect(pos)
minetest.sound_play("portal_open", {
pos = pos,
gain = 1.0,
max_hear_distance = 10
})
else
minetest.chat_send_player(name, S("Potion failed!"))
minetest.remove_node(pos)
minetest.add_item(pos, "teleport_potion:potion")
end
end,
})
-- teleport potion recipe
minetest.register_craft({
output = "teleport_potion:potion",
recipe = {
{"", "default:diamond", ""},
{"default:diamond", "vessels:glass_bottle", "default:diamond"},
{"", "default:diamond", ""},
},
})
--------------------------------------------------------------------------------
--- Teleport pad
--------------------------------------------------------------------------------
local teleport_formspec_context = {}
minetest.register_node("teleport_potion:pad", {
tiles = {"padd.png", "padd.png^[transformFY"},
drawtype = "nodebox",
paramtype = "light",
paramtype2 = "facedir",
legacy_wallmounted = true,
walkable = true,
sunlight_propagates = true,
description = S("Teleport Pad (use to set destination; place to open portal)"),
inventory_image = "padd.png",
wield_image = "padd.png",
light_source = 5,
groups = {snappy = 3},
node_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, -6/16, 0.5}
},
selection_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, -6/16, 0.5}
},
-- Save pointed nodes coordinates as destination for further portals
on_use = function(itemstack, user, pointed_thing)
if pointed_thing.type == "node" then
set_teleport_destination(user:get_player_name(), pointed_thing.above)
end
end,
-- Initialize teleport to saved location or the current position
after_place_node = function(pos, placer, itemstack, pointed_thing)
local meta = minetest.get_meta(pos)
local name = placer:get_player_name()
local dest = teleport_destinations[name]
if not dest then
dest = pos
end
-- Set coords
meta:set_int("x", dest.x)
meta:set_int("y", dest.y)
meta:set_int("z", dest.z)
meta:set_string("infotext", S("Pad Active (@1,@2,@3)",
dest.x, dest.y, dest.z))
minetest.sound_play("portal_open", {
pos = pos,
gain = 1.0,
max_hear_distance = 10
})
end,
-- Show formspec depending on the players privileges.
on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
local name = clicker:get_player_name()
if minetest.is_protected(pos, name) then
minetest.record_protection_violation(pos, name)
return
end
local meta = minetest.get_meta(pos)
local coords = {
x = meta:get_int("x"),
y = meta:get_int("y"),
z = meta:get_int("z")
}
local coords = coords.x .. "," .. coords.y .. "," .. coords.z
local desc = meta:get_string("desc")
formspec = "field[desc;" .. S("Description") .. ";"
.. minetest.formspec_escape(desc) .. "]"
-- Only allow privileged players to change coordinates
if minetest.check_player_privs(name, "teleport") then
formspec = formspec ..
"field[coords;" .. S("Teleport coordinates") .. ";" .. coords .. "]"
end
teleport_formspec_context[name] = {
pos = pos,
coords = coords,
desc = desc,
}
minetest.show_formspec(name, "teleport_potion:set_destination", formspec)
end,
})
-- Check and set coordinates
minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname ~= "teleport_potion:set_destination" then
return false
end
local name = player:get_player_name()
local context = teleport_formspec_context[name]
if not context then return false end
teleport_formspec_context[name] = nil
local meta = minetest.get_meta(context.pos)
-- Coordinates were changed
if fields.coords and fields.coords ~= context.coords then
local coords = check_coordinates(fields.coords)
if coords then
meta:set_int("x", coords.x)
meta:set_int("y", coords.y)
meta:set_int("z", coords.z)
else
minetest.chat_send_player(name, S("Teleport Pad coordinates failed!"))
end
end
-- Update infotext
if fields.desc and fields.desc ~= "" then
meta:set_string("desc", fields.desc)
meta:set_string("infotext", S("Teleport to @1", fields.desc))
else
local coords = minetest.string_to_pos("(" .. context.coords .. ")")
meta:set_string("infotext", S("Pad Active (@1,@2,@3)",
coords.x, coords.y, coords.z))
end
return true
end)
-- teleport pad recipe
minetest.register_craft({
output = "teleport_potion:pad",
recipe = {
{"teleport_potion:potion", "default:glass", "teleport_potion:potion"},
{"default:glass", "default:mese", "default:glass"},
{"teleport_potion:potion", "default:glass", "teleport_potion:potion"}
}
})
-- check portal & pad, teleport any entities on top
minetest.register_abm({
label = "Potion/Pad teleportation",
nodenames = {"teleport_potion:portal", "teleport_potion:pad"},
interval = 2,
chance = 1,
catch_up = false,
action = function(pos, node, active_object_count, active_object_count_wider)
-- check objects inside pad/portal
local objs = minetest.get_objects_inside_radius(pos, 1)
if #objs == 0 then
return
end
-- get coords from pad/portal
local meta = minetest.get_meta(pos)
if not meta then return end -- errorcheck
local target_coords = {
x = meta:get_int("x"),
y = meta:get_int("y"),
z = meta:get_int("z")
}
for n = 1, #objs do
if objs[n]:is_player() then
-- play sound on portal end
minetest.sound_play("portal_close", {
pos = pos,
gain = 1.0,
max_hear_distance = 5
})
-- move player
objs[n]:set_pos(target_coords)
-- paricle effects on arrival
tp_effect(target_coords)
-- play sound on destination end
minetest.sound_play("portal_close", {
pos = target_coords,
gain = 1.0,
max_hear_distance = 5
})
-- rotate player to look in pad placement direction
local rot = node.param2
local yaw = 0
if rot == 0 or rot == 20 then
yaw = 0 -- north
elseif rot == 2 or rot == 22 then
yaw = 3.14 -- south
elseif rot == 1 or rot == 23 then
yaw = 4.71 -- west
elseif rot == 3 or rot == 21 then
yaw = 1.57 -- east
end
objs[n]:set_look_yaw(yaw)
end
end
end
})
-- add lucky blocks
-- Teleport Potion mod
if minetest.get_modpath("lucky_block") then
lucky_block:add_blocks({
{"dro", {"teleport_potion:potion"}, 2},
{"tel"},
{"dro", {"teleport_potion:pad"}, 1},
{"lig"},
})
end
print ("[MOD] Teleport Potion loaded")