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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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Paramat 2018-04-13 02:21:43 +01:00 committed by GitHub
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commit 0b025e6392
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6 changed files with 187 additions and 17 deletions

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@ -1,18 +1,21 @@
# This file contains settings of Minetest Game that can be changed in minetest.conf # This file contains settings of Minetest Game that can be changed in
# minetest.conf.
# By default, all the settings are commented and not functional. # By default, all the settings are commented and not functional.
# Uncomment settings by removing the preceding #. # Uncomment settings by removing the preceding #.
# Whether creative mode (fast digging of all blocks, unlimited resources) should be enabled # Whether creative mode (fast digging of all blocks, unlimited resources) should
# be enabled.
#creative_mode = false #creative_mode = false
# Sets the behaviour of the inventory items when a player dies. # Sets the behaviour of the inventory items when a player dies.
# "bones": Store all items inside a bone node but drop items if inside protected area # "bones": Store items in a bone node but drop items if inside protected area.
# "drop": Drop all items on the ground # "drop": Drop items on the ground.
# "keep": Player keeps all items # "keep": Player keeps items.
#bones_mode = "bones" #bones_mode = "bones"
# The time in seconds after which the bones of a dead player can be looted by everyone # The time in seconds after which the bones of a dead player can be looted by
# 0 to disable # everyone.
# 0 to disable.
#share_bones_time = 1200 #share_bones_time = 1200
# How much earlier the bones of a dead player can be looted by # How much earlier the bones of a dead player can be looted by
@ -20,8 +23,9 @@
# 0 to disable. By default it is "share_bones_time" divide by four. # 0 to disable. By default it is "share_bones_time" divide by four.
#share_bones_time_early = 300 #share_bones_time_early = 300
# Whether fire should be enabled. If disabled, 'basic flame' nodes will disappear. # Whether fire should be enabled. If disabled, 'basic_flame' nodes will
# 'permanent flame' nodes will remain with either setting. # disappear.
# 'permanent_flame' nodes will remain with either setting.
#enable_fire = true #enable_fire = true
# Enable flame sound. # Enable flame sound.
@ -30,24 +34,30 @@
# Whether lavacooling should be enabled. # Whether lavacooling should be enabled.
#enable_lavacooling = true #enable_lavacooling = true
# Whether the stuff in initial_stuff should be given to new players # Whether the stuff in initial_stuff should be given to new players.
#give_initial_stuff = false #give_initial_stuff = false
#initial_stuff = default:pick_steel,default:axe_steel,default:shovel_steel,default:torch 99,default:cobble 99 #initial_stuff = default:pick_steel,default:axe_steel,default:shovel_steel,
default:torch 99,default:cobble 99
# Whether the TNT mod should be enabled # Whether the TNT mod should be enabled.
#enable_tnt = <true in singleplayer, false in multiplayer> #enable_tnt = <true in singleplayer, false in multiplayer>
# The radius of a TNT explosion # The radius of a TNT explosion.
#tnt_radius = 3 #tnt_radius = 3
# Enable the stairs mod ABM that replaces the old 'upside down' # Enable the stairs mod ABM that replaces the old 'upside down'
# stair and slab nodes in old maps with the new param2 versions. # stair and slab nodes in old maps with the new param2 versions.
#enable_stairs_replace_abm = false #enable_stairs_replace_abm = false
# Whether you allow respawning in beds # Whether to allow respawning in beds.
# Default value is true # Default value is true.
#enable_bed_respawn = true #enable_bed_respawn = true
# Whether players can skip night by sleeping # Whether players can skip night by sleeping.
# Default value is true # Default value is true.
#enable_bed_night_skip = true #enable_bed_night_skip = true
# Whether the engine's spawn search, which does not check for a suitable
# starting biome, is used.
# Default value is false.
#engine_spawn = false

7
mods/spawn/README.txt Normal file
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Minetest Game mod: spawn
========================
See license.txt for license information.
Authors of source code
----------------------
paramat (MIT)

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mods/spawn/depends.txt Normal file
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default

124
mods/spawn/init.lua Normal file
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-- Disable by mapgen, setting or if 'static_spawnpoint' is set
--------------------------------------------------------------
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
-- Parameters
-------------
-- 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}
-- Table of suitable biomes
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"),
}
-- End of parameters
--------------------
-- Direction table
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},
}
-- Initial variables
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 = {}
--Functions
-----------
-- Get next position on square search spiral
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
local dir = dirs[dir_ind]
local move = vector.multiply(dir, res)
edge_dist = edge_dist + 1
return vector.add(pos, move)
end
-- Spawn position search
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
pos = next_pos()
end
return false
end
-- On new player spawn
-- Search for new player spawn once per server session. If successful, store
-- position and reposition new players, otherwise leave them at engine spawn
-- position.
minetest.register_on_newplayer(function(player)
if not searched then
success = search()
searched = true
end
if success then
player:setpos(spawn_pos)
end
end)

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mods/spawn/license.txt Normal file
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License of source code
----------------------
The MIT License (MIT)
Copyright (C) 2018 paramat
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:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
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.
For more details:
https://opensource.org/licenses/MIT

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@ -46,3 +46,7 @@ share_bones_time (Bone share time) int 1200 0
# Replaces old stairs with new ones. Only required for older worlds. # Replaces old stairs with new ones. Only required for older worlds.
enable_stairs_replace_abm (Replace old stairs) bool false enable_stairs_replace_abm (Replace old stairs) bool false
# If enabled, use the engine's spawn search which does not check for a
# suitable starting biome.
engine_spawn (Use engine spawn search) bool false