forked from VoxeLibre/VoxeLibre
435 lines
11 KiB
Lua
435 lines
11 KiB
Lua
-- Parameters
|
|
|
|
local TCAVE = 0.6
|
|
local nobj_cave = nil
|
|
-- 3D noise
|
|
|
|
local np_cave = {
|
|
offset = 0,
|
|
scale = 1,
|
|
spread = {x = 384, y = 128, z = 384}, -- squashed 3:1
|
|
seed = 59033,
|
|
octaves = 5,
|
|
persist = 0.7
|
|
}
|
|
-- Portal frame material
|
|
local portal_frame = "mcl_nether:quartz_block"
|
|
|
|
-- Table of objects (including players) which recently teleported by a
|
|
-- End portal. Those objects have a brief cooloff period before they
|
|
-- can teleport again. This prevents annoying back-and-forth teleportation.
|
|
local portal_cooloff = {}
|
|
|
|
-- Destroy portal if pos (portal frame or portal node) got destroyed
|
|
local destroy_portal = function(pos)
|
|
-- Deactivate Nether portal
|
|
local meta = minetest.get_meta(pos)
|
|
local p1 = minetest.string_to_pos(meta:get_string("portal_frame1"))
|
|
local p2 = minetest.string_to_pos(meta:get_string("portal_frame2"))
|
|
if not p1 or not p2 then
|
|
return
|
|
end
|
|
|
|
local first = true
|
|
|
|
-- p1 metadata of first node
|
|
local mp1
|
|
for x = p1.x, p2.x do
|
|
for y = p1.y, p2.y do
|
|
for z = p1.z, p2.z do
|
|
local p = vector.new(x, y, z)
|
|
local m = minetest.get_meta(p)
|
|
if first then
|
|
--[[ Only proceed if the first node still has metadata.
|
|
If it doesn't have metadata, another node propably triggred the delection
|
|
routine earlier, so we bail out earlier to avoid an infinite cascade
|
|
of on_destroy events. ]]
|
|
mp1 = minetest.string_to_pos(m:get_string("portal_frame1"))
|
|
if not mp1 then
|
|
return
|
|
end
|
|
end
|
|
local nn = minetest.get_node(p).name
|
|
if nn == portal_frame or nn == "mcl_portals:portal_end" then
|
|
-- Remove portal nodes, but not myself
|
|
if nn == "mcl_portals:portal_end" and not vector.equals(p, pos) then
|
|
minetest.remove_node(p)
|
|
end
|
|
-- Clear metadata of portal nodes and the frame
|
|
m:set_string("portal_frame1", "")
|
|
m:set_string("portal_frame2", "")
|
|
m:set_string("portal_target", "")
|
|
end
|
|
first = false
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Nodes
|
|
minetest.register_node("mcl_portals:portal_end", {
|
|
description = "End Portal",
|
|
tiles = {
|
|
"blank.png",
|
|
"blank.png",
|
|
"blank.png",
|
|
"blank.png",
|
|
{
|
|
name = "mcl_portals_end_portal.png",
|
|
animation = {
|
|
type = "vertical_frames",
|
|
aspect_w = 16,
|
|
aspect_h = 16,
|
|
length = 2.0,
|
|
},
|
|
},
|
|
{
|
|
name = "mcl_portals_end_portal.png",
|
|
animation = {
|
|
type = "vertical_frames",
|
|
aspect_w = 16,
|
|
aspect_h = 16,
|
|
length = 2.0,
|
|
},
|
|
},
|
|
},
|
|
drawtype = "nodebox",
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
use_texture_alpha = true,
|
|
walkable = false,
|
|
diggable = false,
|
|
pointable = false,
|
|
buildable_to = false,
|
|
is_ground_content = false,
|
|
drop = "",
|
|
-- This is 15 in MC.
|
|
light_source = 14,
|
|
post_effect_color = {a = 192, r = 0, g = 0, b = 0},
|
|
alpha = 192,
|
|
node_box = {
|
|
type = "fixed",
|
|
fixed = {
|
|
{-0.5, -0.5, -0.1, 0.5, 0.5, 0.1},
|
|
},
|
|
},
|
|
groups = {not_in_creative_inventory = 1},
|
|
on_destruct = destroy_portal,
|
|
|
|
_mcl_hardness = -1,
|
|
_mcl_blast_resistance = 18000000,
|
|
})
|
|
|
|
local function build_end_portal(pos, target3)
|
|
local p = {x = pos.x - 1, y = pos.y - 1, z = pos.z}
|
|
local p1 = {x = pos.x - 1, y = pos.y - 1, z = pos.z}
|
|
local p2 = {x = p1.x + 3, y = p1.y + 4, z = p1.z}
|
|
|
|
for i = 1, 4 do
|
|
minetest.set_node(p, {name = portal_frame})
|
|
p.y = p.y + 1
|
|
end
|
|
for i = 1, 3 do
|
|
minetest.set_node(p, {name = portal_frame})
|
|
p.x = p.x + 1
|
|
end
|
|
for i = 1, 4 do
|
|
minetest.set_node(p, {name = portal_frame})
|
|
p.y = p.y - 1
|
|
end
|
|
for i = 1, 3 do
|
|
minetest.set_node(p, {name = portal_frame})
|
|
p.x = p.x - 1
|
|
end
|
|
|
|
for x = p1.x, p2.x do
|
|
for y = p1.y, p2.y do
|
|
p = {x = x, y = y, z = p1.z}
|
|
if not (x == p1.x or x == p2.x or y == p1.y or y == p2.y) then
|
|
minetest.set_node(p, {name = "mcl_portals:portal_end", param2 = 0})
|
|
end
|
|
local meta = minetest.get_meta(p)
|
|
meta:set_string("portal_frame1", minetest.pos_to_string(p1))
|
|
meta:set_string("portal_frame2", minetest.pos_to_string(p2))
|
|
meta:set_string("portal_target", minetest.pos_to_string(target3))
|
|
|
|
if y ~= p1.y then
|
|
for z = -2, 2 do
|
|
if z ~= 0 then
|
|
p.z = p.z + z
|
|
if minetest.registered_nodes[
|
|
minetest.get_node(p).name].is_ground_content then
|
|
minetest.remove_node(p)
|
|
end
|
|
p.z = p.z - z
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
local function find_end_target3_y2(target3_x, target3_z)
|
|
local start_y = mcl_vars.mg_end_min + math.random(20, 120) -- Search start
|
|
if not nobj_cave then
|
|
nobj_cave = minetest.get_perlin(np_cave)
|
|
end
|
|
local air = 0 -- Consecutive air nodes found
|
|
|
|
for y = start_y, start_y - 120, -1 do
|
|
local nval_cave = nobj_cave:get3d({x = target3_x, y = y, z = target3_z})
|
|
|
|
if nval_cave > TCAVE then -- Cavern
|
|
air = air + 1
|
|
else -- Not cavern, check if 4 nodes of space above
|
|
if air >= 4 then
|
|
return y + 2
|
|
else -- Not enough space, reset air to zero
|
|
air = 0
|
|
end
|
|
end
|
|
end
|
|
|
|
return start_y -- Fallback
|
|
end
|
|
|
|
local function move_check2(p1, max, dir)
|
|
local p = {x = p1.x, y = p1.y, z = p1.z}
|
|
local d = math.abs(max - p1[dir]) / (max - p1[dir])
|
|
|
|
while p[dir] ~= max do
|
|
p[dir] = p[dir] + d
|
|
if minetest.get_node(p).name ~= portal_frame then
|
|
return false
|
|
end
|
|
-- Abort if any of the portal frame blocks already has metadata.
|
|
-- This mod does not yet portals which neighbor each other directly.
|
|
-- TODO: Reorganize the way how portal frame coordinates are stored.
|
|
local meta = minetest.get_meta(p)
|
|
local p1 = meta:get_string("portal_frame1")
|
|
if minetest.string_to_pos(p1) ~= nil then
|
|
return false
|
|
end
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
local function check_end_portal(p1, p2)
|
|
if p1.x ~= p2.x then
|
|
if not move_check2(p1, p2.x, "x") then
|
|
return false
|
|
end
|
|
if not move_check2(p2, p1.x, "x") then
|
|
return false
|
|
end
|
|
elseif p1.z ~= p2.z then
|
|
if not move_check2(p1, p2.z, "z") then
|
|
return false
|
|
end
|
|
if not move_check2(p2, p1.z, "z") then
|
|
return false
|
|
end
|
|
else
|
|
return false
|
|
end
|
|
|
|
if not move_check2(p1, p2.y, "y") then
|
|
return false
|
|
end
|
|
if not move_check2(p2, p1.y, "y") then
|
|
return false
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
local function is_end_portal(pos)
|
|
for d = -3, 3 do
|
|
for y = -4, 4 do
|
|
local px = {x = pos.x + d, y = pos.y + y, z = pos.z}
|
|
local pz = {x = pos.x, y = pos.y + y, z = pos.z + d}
|
|
|
|
if check_end_portal(px, {x = px.x + 3, y = px.y + 4, z = px.z}) then
|
|
return px, {x = px.x + 3, y = px.y + 4, z = px.z}
|
|
end
|
|
if check_end_portal(pz, {x = pz.x, y = pz.y + 4, z = pz.z + 3}) then
|
|
return pz, {x = pz.x, y = pz.y + 4, z = pz.z + 3}
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
local function make_end_portal(pos)
|
|
local p1, p2 = is_end_portal(pos)
|
|
if not p1 or not p2 then
|
|
return false
|
|
end
|
|
|
|
for d = 1, 2 do
|
|
for y = p1.y + 1, p2.y - 1 do
|
|
local p
|
|
if p1.z == p2.z then
|
|
p = {x = p1.x + d, y = y, z = p1.z}
|
|
else
|
|
p = {x = p1.x, y = y, z = p1.z + d}
|
|
end
|
|
if minetest.get_node(p).name ~= "air" then
|
|
return false
|
|
end
|
|
end
|
|
end
|
|
|
|
local param2
|
|
if p1.z == p2.z then
|
|
param2 = 0
|
|
else
|
|
param2 = 1
|
|
end
|
|
|
|
local target3 = {x = p1.x, y = p1.y, z = p1.z}
|
|
target3.x = target3.x + 1
|
|
if target3.y < mcl_vars.mg_end_max and target3.y > mcl_vars.mg_end_min then
|
|
target3.y = math.random(mcl_vars.mg_overworld_min + 40, mcl_vars.mg_overworld_min + 96)
|
|
else
|
|
target3.y = find_end_target3_y2(target3.x, target3.z)
|
|
end
|
|
|
|
for d = 0, 3 do
|
|
for y = p1.y, p2.y do
|
|
local p = {}
|
|
if param2 == 0 then
|
|
p = {x = p1.x + d, y = y, z = p1.z}
|
|
else
|
|
p = {x = p1.x, y = y, z = p1.z + d}
|
|
end
|
|
if minetest.get_node(p).name == "air" then
|
|
minetest.set_node(p, {name = "mcl_portals:portal_end", param2 = param2})
|
|
end
|
|
local meta = minetest.get_meta(p)
|
|
|
|
-- Portal frame corners
|
|
meta:set_string("portal_frame1", minetest.pos_to_string(p1))
|
|
meta:set_string("portal_frame2", minetest.pos_to_string(p2))
|
|
|
|
-- Portal target coordinates
|
|
meta:set_string("portal_target", minetest.pos_to_string(target3))
|
|
end
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
minetest.register_abm({
|
|
label = "End portal teleportation",
|
|
nodenames = {"mcl_portals:portal_end"},
|
|
interval = 1,
|
|
chance = 2,
|
|
action = function(pos, node)
|
|
for _,obj in ipairs(minetest.get_objects_inside_radius(pos,1)) do --maikerumine added for objects to travel
|
|
local lua_entity = obj:get_luaentity() --maikerumine added for objects to travel
|
|
if obj:is_player() or lua_entity then
|
|
-- No rapid back-and-forth teleportatio
|
|
if portal_cooloff[obj] then
|
|
return
|
|
end
|
|
local meta = minetest.get_meta(pos)
|
|
local target3 = minetest.string_to_pos(meta:get_string("portal_target"))
|
|
if target3 then
|
|
-- force emerge of target3 area
|
|
minetest.get_voxel_manip():read_from_map(target3, target3)
|
|
if not minetest.get_node_or_nil(target3) then
|
|
minetest.emerge_area(
|
|
vector.subtract(target3, 4), vector.add(target3, 4))
|
|
end
|
|
|
|
-- teleport the object
|
|
minetest.after(3, function(obj, pos, target3)
|
|
-- No rapid back-and-forth teleportatio
|
|
if portal_cooloff[obj] then
|
|
return
|
|
end
|
|
local objpos = obj:getpos()
|
|
if objpos == nil then
|
|
return
|
|
end
|
|
-- If player stands, player is at ca. something+0.5
|
|
-- which might cause precision problems, so we used ceil.
|
|
objpos.y = math.ceil(objpos.y)
|
|
if minetest.get_node(objpos).name ~= "mcl_portals:portal_end" then
|
|
return
|
|
end
|
|
|
|
-- Build destination
|
|
local function check_and_build_end_portal(pos, target3)
|
|
local n = minetest.get_node_or_nil(target3)
|
|
if n and n.name ~= "mcl_portals:portal_end" then
|
|
build_end_portal(target3, pos)
|
|
minetest.after(2, check_and_build_end_portal, pos, target3)
|
|
elseif not n then
|
|
minetest.after(1, check_and_build_end_portal, pos, target3)
|
|
end
|
|
end
|
|
|
|
check_and_build_end_portal(pos, target3)
|
|
|
|
-- Teleport
|
|
obj:setpos(target3)
|
|
minetest.sound_play("mcl_portals_teleport", {pos=target3, gain=0.5, max_hear_distance = 16})
|
|
|
|
-- Enable teleportation cooloff to prevent frequent back-and-forth teleportation
|
|
portal_cooloff[obj] = true
|
|
minetest.after(3, function(o)
|
|
portal_cooloff[o] = false
|
|
end, obj)
|
|
|
|
end, obj, pos, target3)
|
|
end
|
|
end
|
|
end
|
|
end,
|
|
})
|
|
|
|
|
|
--[[ ITEM OVERRIDES ]]
|
|
|
|
-- Frame material
|
|
minetest.override_item(portal_frame, {
|
|
on_destruct = destroy_portal,
|
|
})
|
|
|
|
-- Portal opener
|
|
minetest.override_item("mcl_end:ender_eye", {
|
|
_doc_items_longdesc = "An eye of ander can be used to open a portal to the End.",
|
|
_doc_items_usagehelp = "To open an End portal, place an upright frame of quartz blocks with a length of 4 and a height of 5 blocks, leaving only air in the center. After placing this frame, use the eye of ender on the frame.",
|
|
on_place = function(itemstack, user, pointed_thing)
|
|
-- Use pointed node's on_rightclick function first, if present
|
|
local node = minetest.get_node(pointed_thing.under)
|
|
if user and not user:get_player_control().sneak then
|
|
if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
|
|
return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, user, itemstack) or itemstack
|
|
end
|
|
end
|
|
|
|
-- If used on portal frame, open a portal
|
|
if pointed_thing.under and node.name == portal_frame then
|
|
local opened = make_end_portal(pointed_thing.under)
|
|
if opened then
|
|
if minetest.get_modpath("doc") then
|
|
doc.mark_entry_as_revealed(user:get_player_name(), "nodes", "mcl_portals:portal_end")
|
|
end
|
|
minetest.sound_play(
|
|
"fire_flint_and_steel",
|
|
{pos = pointed_thing.above, gain = 0.5, max_hear_distance = 16})
|
|
if not minetest.settings:get_bool("creative_mode") then
|
|
itemstack:take_item() -- 1 use
|
|
end
|
|
end
|
|
end
|
|
|
|
return itemstack
|
|
end,
|
|
})
|
|
|