VoxeLibre/mods/ITEMS/mcl_portals/portal_gateway.lua

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local S = minetest.get_translator("mcl_portals")
local storage = mcl_portals.storage
local gateway_positions = {
{x = 96, y = -26925, z = 0},
{x = 91, y = -26925, z = 29},
{x = 77, y = -26925, z = 56},
{x = 56, y = -26925, z = 77},
{x = 29, y = -26925, z = 91},
{x = 0, y = -26925, z = 96},
{x = -29, y = -26925, z = 91},
{x = -56, y = -26925, z = 77},
{x = -77, y = -26925, z = 56},
{x = -91, y = -26925, z = 29},
{x = -96, y = -26925, z = 0},
{x = -91, y = -26925, z = -29},
{x = -77, y = -26925, z = -56},
{x = -56, y = -26925, z = -77},
{x = -29, y = -26925, z = -91},
{x = 0, y = -26925, z = -96},
{x = 29, y = -26925, z = -91},
{x = 56, y = -26925, z = -77},
{x = 77, y = -26925, z = -56},
{x = 91, y = -26925, z = -29},
}
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local function spawn_gateway_portal(pos, dest_str)
local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_gateway_portal.mts"
return mcl_structures.place_schematic(vector.add(pos, vector.new(-1, -2, -1)), path, "0", nil, true, dest_str and function()
minetest.get_voxel_manip():read_from_map(pos, pos)
minetest.get_meta(pos):set_string("mcl_portals:gateway_destination", dest_str)
print(dest_str)
end)
end
function mcl_portals.spawn_gateway_portal()
local id = storage:get_int("gateway_last_id") + 1
local pos = gateway_positions[id]
if not pos then return end
storage:set_int("gateway_last_id", id)
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spawn_gateway_portal(pos)
end
local gateway_def = table.copy(minetest.registered_nodes["mcl_portals:portal_end"])
gateway_def.description = S("End Gateway Portal")
gateway_def._tt_help = S("Used to construct end gateway portals")
gateway_def._doc_items_longdesc = S("An End gateway portal teleports creatures and objects to the outer End (and back!).")
gateway_def._doc_items_usagehelp = S("Throw an ender pearl into the portal to teleport. Entering an Gateway portal near the Overworld teleports you to the outer End. At this destination another gateway portal will be constructed, which you can use to get back.")
gateway_def.after_destruct = nil
gateway_def.drawtype = "normal"
gateway_def.node_box = nil
gateway_def.walkable = true
gateway_def.tiles[3] = nil
minetest.register_node("mcl_portals:portal_gateway", gateway_def)
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local function find_destination_pos(minp, maxp)
for y = maxp.y, minp.y, -1 do
for x = maxp.x, minp.x, -1 do
for z = maxp.z, minp.z, -1 do
local pos = vector.new(x, y, z)
local nn = minetest.get_node(pos).name
if nn ~= "ignore" and nn ~= "mcl_portals:portal_gateway" and nn ~= "mcl_core:bedrock" then
local def = minetest.registered_nodes[nn]
if def and def.walkable then
return vector.add(pos, vector.new(0, 1.5, 0))
end
end
end
end
end
end
local preparing = {}
local function teleport(pos, obj)
local meta = minetest.get_meta(pos)
local dest_portal
local dest_str = meta:get_string("mcl_portals:gateway_destination")
local pos_str = minetest.pos_to_string(pos)
if dest_str == "" then
dest_portal = vector.multiply(vector.direction(vector.new(0, pos.y, 0), pos), math.random(768, 1024))
dest_portal.y = -26970
spawn_gateway_portal(dest_portal, pos_str)
meta:set_string("mcl_portals:gateway_destination", minetest.pos_to_string(dest_portal))
else
dest_portal = minetest.string_to_pos(dest_str)
end
local minp = vector.subtract(dest_portal, vector.new(5, 40, 5))
local maxp = vector.add(dest_portal, vector.new(5, 10, 5))
preparing[pos_str] = true
minetest.emerge_area(minp, maxp, function()
if obj:is_player() or obj:get_luaentity() then
obj:set_pos(find_destination_pos(minp, maxp) or vector.add(dest_portal, vector.new(0, 3.5, 0)))
end
preparing[pos_str] = false
end)
end
minetest.register_abm({
label = "End gateway portal teleportation",
nodenames = {"mcl_portals:portal_gateway"},
interval = 0.1,
chance = 1,
action = function(pos)
if preparing[minetest.pos_to_string(pos)] then return end
for _, obj in pairs(minetest.get_objects_inside_radius(pos, 1)) do
if obj:get_hp() > 0 then
teleport(pos, obj)
return
end
end
end,
})