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Add 'spawn' mod to spawn new players in suitable starting biomes (#2091)
Disabled in mgv6 and singlenode mapgens, by setting, or if 'static_spawnpoint' is set. Cleanup format of minetest.conf.example.
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Minetest Game mod: spawn | ||
======================== | ||
See license.txt for license information. | ||
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Authors of source code | ||
---------------------- | ||
paramat (MIT) |
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default |
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-- Disable by mapgen, setting or if 'static_spawnpoint' is set | ||
-------------------------------------------------------------- | ||
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local mg_name = minetest.get_mapgen_setting("mg_name") | ||
if mg_name == "v6" or mg_name == "singlenode" or | ||
minetest.settings:get("static_spawnpoint") or | ||
minetest.settings:get_bool("engine_spawn") then | ||
return | ||
end | ||
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-- Parameters | ||
------------- | ||
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-- Resolution of search grid in nodes. | ||
local res = 64 | ||
-- Number of points checked in the square search grid (edge * edge). | ||
local checks = 128 * 128 | ||
-- Starting point for biome checks. This also sets the y co-ordinate for all | ||
-- points checked, so the suitable biomes must be active at this y. | ||
local pos = {x = 0, y = 8, z = 0} | ||
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-- Table of suitable biomes | ||
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local biome_ids = { | ||
minetest.get_biome_id("taiga"), | ||
minetest.get_biome_id("coniferous_forest"), | ||
minetest.get_biome_id("deciduous_forest"), | ||
minetest.get_biome_id("grassland"), | ||
minetest.get_biome_id("savanna"), | ||
} | ||
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-- End of parameters | ||
-------------------- | ||
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-- Direction table | ||
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local dirs = { | ||
{x = 0, y = 0, z = 1}, | ||
{x = -1, y = 0, z = 0}, | ||
{x = 0, y = 0, z = -1}, | ||
{x = 1, y = 0, z = 0}, | ||
} | ||
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-- Initial variables | ||
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local edge_len = 1 | ||
local edge_dist = 0 | ||
local dir_step = 0 | ||
local dir_ind = 1 | ||
local searched = false | ||
local success = false | ||
local spawn_pos = {} | ||
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--Functions | ||
----------- | ||
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-- Get next position on square search spiral | ||
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local function next_pos() | ||
if edge_dist == edge_len then | ||
edge_dist = 0 | ||
dir_ind = dir_ind + 1 | ||
if dir_ind == 5 then | ||
dir_ind = 1 | ||
end | ||
dir_step = dir_step + 1 | ||
edge_len = math.floor(dir_step / 2) + 1 | ||
end | ||
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local dir = dirs[dir_ind] | ||
local move = vector.multiply(dir, res) | ||
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edge_dist = edge_dist + 1 | ||
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return vector.add(pos, move) | ||
end | ||
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-- Spawn position search | ||
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local function search() | ||
for iter = 1, checks do | ||
local biome_data = minetest.get_biome_data(pos) | ||
-- Sometimes biome_data is nil | ||
local biome = biome_data and biome_data.biome | ||
for id_ind = 1, #biome_ids do | ||
local biome_id = biome_ids[id_ind] | ||
if biome == biome_id then | ||
local spawn_y = minetest.get_spawn_level(pos.x, pos.z) | ||
if spawn_y then | ||
spawn_pos = {x = pos.x, y = spawn_y, z = pos.z} | ||
return true | ||
end | ||
end | ||
end | ||
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pos = next_pos() | ||
end | ||
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return false | ||
end | ||
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-- On new player spawn | ||
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-- Search for new player spawn once per server session. If successful, store | ||
-- position and reposition new players, otherwise leave them at engine spawn | ||
-- position. | ||
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minetest.register_on_newplayer(function(player) | ||
if not searched then | ||
success = search() | ||
searched = true | ||
end | ||
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if success then | ||
player:setpos(spawn_pos) | ||
end | ||
end) |
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License of source code | ||
---------------------- | ||
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The MIT License (MIT) | ||
Copyright (C) 2018 paramat | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy of this | ||
software and associated documentation files (the "Software"), to deal in the Software | ||
without restriction, including without limitation the rights to use, copy, modify, merge, | ||
publish, distribute, sublicense, and/or sell copies of the Software, and to permit | ||
persons to whom the Software is furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all copies or | ||
substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | ||
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR | ||
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE | ||
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
DEALINGS IN THE SOFTWARE. | ||
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For more details: | ||
https://opensource.org/licenses/MIT |
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