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Added a function to let one spawn plants at mapgen time,

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but it's slow as molasses in January.  Not recommended for
general use yet.
This commit is contained in:
Vanessa Ezekowitz 2013-01-19 00:45:46 -05:00
parent 4eff513bbd
commit 7dd3ec2525
5 changed files with 286 additions and 214 deletions
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289
API.txt
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@ -1,178 +1,201 @@
This document briefly describes the Plantlife API.
Last revision: 2013-01-18
=========
Functions
=========
There are five main functions defined by the main "plants_lib" mod:
All functions in plants lib are declared locally to avoid namespace collisions
with other mods. They are accessible via the "plantslib" method, e.g.
plantslib:spawn_on_surfaces() and so forth.
There are three main functions defined by the main "plants_lib" mod:
spawn_on_surfaces()
generate_on_surfaces()
grow_plants()
plant_valid_wall()
is_node_loaded()
dbg()
There are also several internal, helper functions that can be called if so
desired, but they are not really intended for use by other mods and may change
at any time. See init.lua for more.
-----
The first of these, spawn_on_surfaces() is defined with quite a large number
of variables. All of the variables below, if specified at all, must be
specified exactly in the order given here. This function has no return value.
spawn_on_surfaces = function(sdelay, splant, sradius, schance, ssurface,
savoid, seed_diff, lightmin, lightmax, nneighbors, ocount,
facedir, depthmax, altitudemin, altitudemax, tempmin, tempmax)
savoid, seed_diff, lightmin, lightmax, nneighbors, ocount, facedir,
depthmax, altitudemin, altitudemax, sbiome, sbiomesize, sbiomecount,
airsize, aircount, tempmin, tempmax)
The first several of these are all required, and are from the last version of
the flowers mod, so this part of the API should be the same as before.
sdelay: The value passed to the ABM's interval parameter, usually
in the 1000-3000 range.
splant: The node name of the item to spawn (e.g.
"flowers:flower_rose"). Note that if the plant is
"poisonivy:seedling", and it's next to a wall at spawn
time, it automatically becomes the wall-climbing variety.
A plant will of course only be spawned if the node about
to be replaced is air.
sradius: Don't spawn within this many nodes of the avoid items
mentioned below.
schance: The value passed to the ABM's chance parameter, normally
in the 10-100 range.
ssurface: Table with the names of the nodes on which to spawn the
plant in question, such as {"default:sand",
"default:dirt_with_grass"}. It is not recommended to put
"default:dirt" or "default:stone" into this table if you
can do without it, as this will cause the engine to
process potentially large numbers of such nodes when
deciding when to execute the ABM and where it should
operate.
savoid: Table with a list of groups and/or node names to avoid
when spawning the plant, such as {"group:flowers",
"default:tree"}.
sdelay: The value passed to the ABM's interval parameter, in seconds.
splant: The node name of the item to spawn (e.g.
"flowers:flower_rose"). Note that if the plant is
"poisonivy:seedling", and it's next to a wall at spawn
time, it automatically becomes the wall-climbing variety.
A plant will of course only be spawned if the node about
to be replaced is air.
sradius: Don't spawn within this many nodes of the avoid items
mentioned below.
schance: The value passed to the ABM's chance parameter, normally
in the 10-100 range (1-in-X chance of operating on a given
node, e.g. 1-in-10).
ssurface: Table with the names of the nodes on which to spawn the
plant in question, such as {"default:sand",
"default:dirt_with_grass"}. It is not recommended to put
"default:dirt" or "default:stone" into this table if you
can do without it, as this will cause the engine to
process potentially large numbers of such nodes when
deciding when to execute the ABM and where it should
operate.
savoid: Table with a list of groups and/or node names to avoid
when spawning the plant, such as {"group:flowers",
"default:tree"}.
From here down are several optional parameters. You can use as many as you
need, but you must specify them in order (so if you want lightmax, you need
lightmin and seed_diff also, but not the rest).
need, but you must specify them in order. To keep the default values for
those parameters you don't wish to alter, set them to nil in your function
call.
seed_diff: The Perlin seed difference value passed to the
minetest.env:get_perlin() function. Used along with the
global Perlin controls below to create the "biome" in
which the plants will spawn. Usually a value of somewhere
in the 10 to 100 range is good. Defaults to 0 if not
provided.
lightmin: Minimum amount of light necessary to make a plant spawn.
Defaults to 0.
lightmax: Maximum amount of light present to allow a plant to spawn.
Defaults to the engine's MAX_LIGHT value of 14.
nneighbors: Table with a list of neighboring nodes, passed to the ABM
as the "neighbors" parameter, indicating what needs to be
next to the node the plant is about to spawn on, such as
{"default:stone","default:water_source"}. Defaults to the
value of ssurface if not provided.
ocount: There must be at least this many of the above neighbors in
the eight spaces immediately surrounding the node the
plant is about to spawn on for it to happen. Defaults to
0.
facedir: The value passed to the param2 variable when adding the
plant node to the map. Defaults to 0.
depthmax: If a node spawns on top of a water source, the water must
be at most this deep. Defaults to 1 node.
altitudemin: Items must be at this altitude or higher to spawn at all.
Defaults to -31000.
altitudemax: But no higher than this altitude. Defaults to +31000.
sbiome: List of nodes that must be somewhere in the vicinity in
order for the plant to spawn. Typically this would be
something like "default:water_source" or "default:sand".
Defaults to the value of ssurface if not provided.
sbiomesize: How large of an area to check for the above node.
Specifically, this checks a cuboid area centered on the
node to be spawned on, 3 tall and this wide/long.
Defaults to 0.
sbiomecount: How many of the above nodes must be within that radius.
Defaults to 1.
airradius: How large of an area to check for air around the target.
Defaults to 0 (only check the target).
aircount: How many of the surrounding nodes need to be air for the
above check to return true. Defaults to 1.
tempmin: Minimum 2d Perlin value (which has a floating point range of
-1 to +1) needed in the temperature map for the desired
plant to spawn. Defaults to -1 if not supplied.
tempmax: Maximum temperature. Defaults to +1.
seed_diff: The Perlin seed difference value passed to the
minetest.env:get_perlin() function. Used along with the
global Perlin controls below to create the "biome" in
which the plants will spawn. Usually a value of somewhere
in the 10 to 100 range is good. Defaults to 0 if not
provided.
lightmin: Minimum amount of light necessary to make a plant spawn.
Defaults to 0.
lightmax: Maximum amount of light present to allow a plant to spawn.
Defaults to the engine's MAX_LIGHT value of 14.
nneighbors: Table with a list of neighboring nodes, passed to the ABM
as the "neighbors" parameter, indicating what needs to be
next to the node the plant is about to spawn on, such as
{"default:stone","default:water_source"}. Defaults to the
value of ssurface if not provided.
ocount: There must be at least this many of the above neighbors in
the eight spaces immediately surrounding the node the
plant is about to spawn on for it to happen. Defaults to
0.
facedir: The value passed to the param2 variable when adding the
plant node to the map. Defaults to 0.
depthmax: If a node spawns on top of a water source, the water must
be at most this deep. Defaults to 1 node.
altitudemin: Items must be at this altitude or higher to spawn at all.
Defaults to -31000.
altitudemax: But no higher than this altitude. Defaults to +31000.
sbiome: List of nodes that must be somewhere in the vicinity in
order for the plant to spawn. Typically this would be
something like "default:water_source" or "default:sand".
Defaults to the value of ssurface if not provided.
sbiomesize: How large of an area to check for the above node.
Specifically, this checks a cuboid area centered on the
node to be spawned on, 3 tall and this wide/long.
Defaults to 0.
sbiomecount: How many of the above nodes must be within that radius.
Defaults to 1.
airradius: How large of an area to check for air around the target.
Defaults to 0 (only check the target).
aircount: How many of the surrounding nodes need to be air for the
above check to return true. Defaults to 1.
tempmin: Minimum 2d Perlin value (which has a floating point range of
-1 to +1) needed in the temperature map for the desired
plant to spawn. Defaults to -1 if not supplied.
tempmax: Maximum temperature. Defaults to +1.
By default, if a biome node, size, and count are not defined, the biome
checking is disabled. Same holds true for the nneighbors bit above that.
-----
The second function, grow_plants() is used to turn the spawned nodes above
XXXXXXXXXX FIX ME FIX ME FIX ME
XXXXXXXXXX
XXXXXXXXXX Document the mapgen-based spawning function
XXXXXXXXXX
XXXXXXXXXX FIX ME FIX ME FIX ME
-----
The third function, grow_plants() is used to turn the spawned nodes above
into something else over time. This function has no return value, and is
defined like so:
grow_plants = function(gdelay, gchance, gplant, gresult, dry_early_node,
grow_nodes, facedir, need_wall, grow_vertically, height_limit,
ground_nodes, grow_function)
grow_nodes, facedir, need_wall, grow_vertically, height_limit,
ground_nodes, grow_function)
gdelay: Passed as the ABM "interval" parameter, as with spawning.
gchance: Passed as the ABM "chance" parameter.
gplant: Name of the node being grown. This value is passed as the
only item in the table given to the ABM as the nodenames
parameter, so it is the plants themselves that are the ABM
trigger, rather than the ground they spawned on. A plant
will only grow if the node above it is air.
gresult: Name of the node into which the above should transform
when the ABM executes.
dry_early_node: This value is ignored except for jungle grass, where it
indicates which node the grass must be on in order for it
to turn from "short" to default:dry_shrub.
grow_nodes: This node must be under the plant in order for it to grow
at all. Normally this should be the same as the list of
surfaces passed to the spawning ABM as the "nodenames"
parameter, such as {"default:dirt_with_grass",
"default:sand"}. This is so that the plant can be
manually placed on something like a flower pot or
something without it growing and eventually dieing.
facedir: Same as with spawning a plant. If supplied, this value is
passed to the param2 variable when changing the plant. If
nil or left out, no new param2 value is applied.
need_wall: Set this to true if you the plant needs to grow against a
wall. Defaults to false.
grow_vertically: Set this to true if the plant needs to grow vertically, as
in climbing poison ivy. Defaults to false.
height_limit: Just how tall can a vertically-growing plant go? Set this
accordingly. The mod will search straight down from the
position being spawned at to find a ground node, below.
Defaults to 62000 (unlimited).
ground_nodes: What nodes should be treated as "the ground" below a
vertically-growing plant. Usually this will be the same
as the grow_nodes table, but might also include, for
example, water or some other surrounding material.
Defaults to "default:dirt_with_grass".
grow_function: Execute the named function (which must be supplied as just
the name of the function as a string) when growing this
node, rather than using the method provided by the default
growing code. Note that if this is specified, only the
gdelay, gchance, and gplant variables will be used, the
rest will be ignored by the growing ABM. You can still
read them from within the function if you need to. The
function will be passed two parameters in order: The
position of the node to be "grown" (in the usual table
format), and the Perlin noise value at the location in
question.
seed_diff: The Perlin seed diff to be use to calculate the noise
value given to the above grow_function. Should be the
same as the seed diff used when first spawning the plant
that's being grown.
gdelay: Passed as the ABM "interval" parameter, as with spawning.
gchance: Passed as the ABM "chance" parameter.
gplant: Name of the node being grown. This value is passed as the
only item in the table given to the ABM as the nodenames
parameter, so it is the plants themselves that are the ABM
trigger, rather than the ground they spawned on. A plant
will only grow if the node above it is air.
gresult: Name of the node into which the above should transform
when the ABM executes.
dry_early_node: This value is ignored except for jungle grass, where it
indicates which node the grass must be on in order for it
to turn from "short" to default:dry_shrub.
grow_nodes: This node must be under the plant in order for it to grow
at all. Normally this should be the same as the list of
surfaces passed to the spawning ABM as the "nodenames"
parameter, such as {"default:dirt_with_grass",
"default:sand"}. This is so that the plant can be
manually placed on something like a flower pot or
something without it growing and eventually dieing.
facedir: Same as with spawning a plant. If supplied, this value is
passed to the param2 variable when changing the plant. If
nil or left out, no new param2 value is applied.
need_wall: Set this to true if you the plant needs to grow against a
wall. Defaults to false.
grow_vertically: Set this to true if the plant needs to grow vertically, as
in climbing poison ivy. Defaults to false.
height_limit: Just how tall can a vertically-growing plant go? Set this
accordingly. The mod will search straight down from the
position being spawned at to find a ground node, set via the
parameter below. Defaults to 62000 (unlimited).
ground_nodes: What nodes should be treated as "the ground" below a
vertically-growing plant. Usually this will be the same
as the grow_nodes table, but might also include, for
example, water or some other surrounding material.
Defaults to "default:dirt_with_grass".
grow_function: Execute the named function (which must be supplied as just
the name of the function as a string) when growing this
node, rather than using the method provided by the default
growing code. Note that if this is specified, only the
gdelay, gchance, and gplant variables will be used, the
rest will be ignored by the growing ABM. You can still
read them from within the function if you need to. The
function will be passed two parameters in order: The
position of the node to be "grown" (in the usual table
format), and the Perlin noise value at the location in
question.
seed_diff: The Perlin seed diff to be use to calculate the noise
value given to the above grow_function. Should be the
same as the seed diff used when first spawning the plant
that's being grown.
-----
plant_valid_wall() expects only a single parameter, "pos", which is the usual
table indicating the coordinates around which to search for adjacent walls.
This function returns the location of the first wall found as a facedir value,
or nil if there are no adjacent walls.
Of the few helper functions, plant_valid_wall() expects only a single
parameter, "pos", which is the usual table indicating the coordinates around
which to search for adjacent walls. This function returns the location of the
first wall found as a facedir value, or nil if there are no adjacent walls.
-----
is_node_loaded() is defined in exactly the same manner (that is, "node_pos" is
a set of coordinates), and acts as a wrapper for the
minetest.env:get_node_or_nil(node_pos) function. Returns true if the node in
question is already loaded, or false if not.
-----
dbg() is a simple debug output function which takes one string parameter. It
just checks if plantlife_debug is true and outputs the phrase "[Plantlife] "
followed by the supplied string, via the print() function.
@ -252,7 +275,7 @@ Perlin Approx. Temperature
-0.5 55 °C ( 131 °F)
-0.25 41 °C ( 107 °F)
-0.18 38 °C ( 100 °F)
0 28 °C ( 83 °F)
0 28 °C ( 83 °F)
0.13 21 °C ( 70 °F)
0.25 15 °C ( 59 °F)
0.5 2 °C ( 35 °F)

14
flowers/init.lua
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@ -2,9 +2,7 @@
local spawn_delay = 2000 -- 2000
local spawn_chance = 100 -- 100
local grow_delay = 1000 -- 1000
local grow_chance = 10 -- 10
local flowers_seed_diff = plantlife_seed_diff+20
local flowers_seed_diff = plantslib.plantlife_seed_diff+20
local flowers_list = {
{ "Rose", "rose", spawn_delay, 10, spawn_chance , 10},
@ -66,7 +64,7 @@ for i in ipairs(flowers_list) do
}
})
spawn_on_surfaces(delay, "flowers:flower_"..flower, radius, chance, "default:dirt_with_grass", {"group:flower", "group:poisonivy"}, flowers_seed_diff)
plantslib:spawn_on_surfaces(delay, "flowers:flower_"..flower, radius, chance, "default:dirt_with_grass", {"group:flower", "group:poisonivy"}, flowers_seed_diff)
end
minetest.register_node(":flowers:flower_waterlily", {
@ -105,11 +103,11 @@ minetest.register_node(":flowers:flower_seaweed", {
},
})
spawn_on_surfaces(spawn_delay/2, "flowers:flower_waterlily", 3, spawn_chance*2, "default:water_source" , {"group:flower"}, flowers_seed_diff, 10, nil, nil, nil, nil, 4)
plantslib:spawn_on_surfaces(spawn_delay/2, "flowers:flower_waterlily", 3, spawn_chance*2, "default:water_source" , {"group:flower"}, flowers_seed_diff, 10, nil, nil, nil, nil, 4)
spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:water_source" , {"group:flower"}, flowers_seed_diff, 4, 10, {"default:dirt_with_grass"}, 0, 1)
spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:dirt_with_grass", {"group:flower"}, flowers_seed_diff, 4, 10, {"default:water_source"} , 1, 1)
spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:stone" , {"group:flower"}, flowers_seed_diff, 4, 10, {"default:water_source"} , 6, 1)
plantslib:spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:water_source" , {"group:flower"}, flowers_seed_diff, 4, 10, {"default:dirt_with_grass"}, 0, 1)
plantslib:spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:dirt_with_grass", {"group:flower"}, flowers_seed_diff, 4, 10, {"default:water_source"} , 1, 1)
plantslib:spawn_on_surfaces(spawn_delay*2, "flowers:flower_seaweed" , 0.1, spawn_chance*2, "default:stone" , {"group:flower"}, flowers_seed_diff, 4, 10, {"default:water_source"} , 6, 1)
minetest.register_craftitem(":flowers:flower_pot", {

12
junglegrass/init.lua
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@ -4,7 +4,7 @@ local spawn_delay = 2000 -- 2000
local spawn_chance = 100 -- 100
local grow_delay = 1000 -- 1000
local grow_chance = 10 -- 10
local junglegrass_seed_diff = plantlife_seed_diff
local junglegrass_seed_diff = plantslib.plantlife_seed_diff
local grasses_list = {
{"junglegrass:shortest","junglegrass:short" },
@ -68,12 +68,12 @@ minetest.register_node(':junglegrass:shortest', {
},
})
spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance, "default:dirt_with_grass", {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*2, "default:sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*3, "default:desert_sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*3, "default:desert_sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
plantslib:spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance, "default:dirt_with_grass", {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
plantslib:spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*2, "default:sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
plantslib:spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*3, "default:desert_sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
plantslib:spawn_on_surfaces(spawn_delay*2, "junglegrass:shortest", 4, spawn_chance*3, "default:desert_sand" , {"group:junglegrass", "default:junglegrass", "default:dry_shrub"}, junglegrass_seed_diff, 5)
for i in ipairs(grasses_list) do
grow_plants(grow_delay, grow_chance/2, grasses_list[i][1], grasses_list[i][2], "default:desert_sand", {"default:dirt_with_grass", "default:sand", "default:desert_sand"})
plantslib:grow_plants(grow_delay, grow_chance/2, grasses_list[i][1], grasses_list[i][2], "default:desert_sand", {"default:dirt_with_grass", "default:sand", "default:desert_sand"})
end

176
plants_lib/init.lua
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@ -1,17 +1,17 @@
-- Plantlife library mod by Vanessa Ezekowitz
-- 2013-01-00
-- 2013-01-18
--
-- License: WTFPL
--
-- I got the temperature map idea from "hmmmm", values used for it came from
-- Splizard's snow mod.
--
-- Various settings - most of these probably won't need to be changed
plantlife_seed_diff = 329 -- needs to be global so other mods can see it
plantslib = {}
local plantlife_debug = true -- ...unless you want the modpack to spam the console ;-)
plantslib.plantlife_seed_diff = 329 -- needs to be global so other mods can see it
local perlin_octaves = 3
local perlin_persistence = 0.6
@ -28,13 +28,7 @@ local plantlife_limit = 0.1 -- compared against perlin noise. lower = more abun
math.randomseed(os.time())
local dbg = function(s)
if plantlife_debug then
print("[Plantlife] " .. s)
end
end
local is_node_loaded = function(node_pos)
function plantslib:is_node_loaded(node_pos)
n = minetest.env:get_node_or_nil(node_pos)
if (n == nil) or (n.name == "ignore") then
return false
@ -42,31 +36,89 @@ local is_node_loaded = function(node_pos)
return true
end
-- Spawn plants using the map generator
function plantslib:register_generate_plant(biome)
minetest.register_on_generated(plantslib:search_for_surfaces(minp, maxp, biome))
end
function plantslib:search_for_surfaces(minp, maxp, biome)
return function(minp, maxp, blockseed)
print("Started checking generated mapblock...")
local searchnodes = minetest.env:find_nodes_in_area(minp, maxp, biome.surface)
local surfacenodes = {}
local numsurfacenodes = 0
for i in ipairs(searchnodes) do
local pos = searchnodes[i]
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
if minetest.env:get_node(p_top).name == "air" then
table.insert(surfacenodes, pos)
numsurfacenodes = numsurfacenodes + 1
end
end
print("Found "..numsurfacenodes.." surface nodes in map block {"..dump(minp)..":"..dump(maxp).."} to check.")
if biome.seed_diff == nil then biome.seed_diff = 0 end
if biome.neighbors == nil then biome.neighbors = biome.surface end
if biome.ncount == nil then biome.ncount = -1 end
if biome.min_elevation == nil then biome.min_elevation = -31000 end
if biome.max_elevation == nil then biome.max_elevation = 31000 end
if biome.near_nodes_size == nil then biome.near_nodes_size = 0 end
if biome.near_nodes_count == nil then biome.near_nodes_count = 1 end
if biome.temp_min == nil then biome.temp_min = -1 end
if biome.temp_max == nil then biome.temp_max = 1 end
for i in ipairs(surfacenodes) do
local pos = surfacenodes[i]
local p_top = {x = pos.x, y = pos.y + 1, z = pos.z}
local perlin1 = minetest.env:get_perlin(biome.seed_diff, perlin_octaves, perlin_persistence, perlin_scale)
local perlin2 = minetest.env:get_perlin(temperature_seeddiff, temperature_octaves, temperature_persistence, temperature_scale)
local noise1 = perlin1:get2d({x=p_top.x, y=p_top.z})
local noise2 = perlin2:get2d({x=p_top.x, y=p_top.z})
if minetest.env:find_node_near(p_top, biome.radius + math.random(-1.5,1.5), biome.avoid) == nil
and noise1 > plantlife_limit
and noise2 >= biome.temp_min
and noise2 <= biome.temp_max
and (biome.ncount == -1 or table.getn(minetest.env:find_nodes_in_area({x=pos.x-1, y=pos.y, z=pos.z-1}, {x=pos.x+1, y=pos.y, z=pos.z+1}, biome.neighbors)) > biome.ncount)
and (biome.near_nodes == nil or table.getn(minetest.env:find_nodes_in_area({x=pos.x-biome.near_nodes_size, y=pos.y-1, z=pos.z-biome.near_nodes_size}, {x=pos.x+biome.near_nodes_size, y=pos.y+1, z=pos.z+biome.near_nodes_size}, biome.near_nodes)) >= biome.near_nodes_count)
and pos.y >= biome.min_elevation
and pos.y <= biome.max_elevation
and (biome.water_depth == nil or minetest.env:get_node({ x = pos.x, y = pos.y-biome.water_depth-1, z = pos.z }).name ~= "default:water_source")
then
minetest.log("verbose", "Call function: "..biome.exec_funct.."("..dump(pos)..")")
assert(loadstring(biome.exec_funct.."("..dump(pos)..")"))()
end
end
print("Finished checking generated mapblock.")
end
end
-- The spawning ABM
spawn_on_surfaces = function(
sdelay,
splant,
sradius,
schance,
ssurface,
savoid,
seed_diff,
lightmin,
lightmax,
nneighbors,
ocount,
facedir,
depthmax,
altmin,
altmax,
sbiome,
sbiomesize,
sbiomecount,
airsize,
aircount,
tempmin,
tempmax)
function plantslib:spawn_on_surfaces(
sdelay,
splant,
sradius,
schance,
ssurface,
savoid,
seed_diff,
lightmin,
lightmax,
nneighbors,
ocount,
facedir,
depthmax,
altmin,
altmax,
sbiome,
sbiomesize,
sbiomecount,
airsize,
aircount,
tempmin,
tempmax)
if seed_diff == nil then seed_diff = 0 end
if lightmin == nil then lightmin = 0 end
if lightmax == nil then lightmax = LIGHT_MAX end
@ -97,7 +149,7 @@ spawn_on_surfaces = function(
if noise1 > plantlife_limit
and noise2 >= tempmin
and noise2 <= tempmax
and is_node_loaded(p_top) then
and plantslib:is_node_loaded(p_top) then
local n_light = minetest.env:get_node_light(p_top, nil)
if minetest.env:find_node_near(p_top, sradius + math.random(-1.5,2), savoid) == nil
and n_light >= lightmin
@ -110,16 +162,16 @@ spawn_on_surfaces = function(
and pos.y >= altmin
and pos.y <= altmax
then
local walldir = plant_valid_wall(p_top)
local walldir = plantslib:plant_valid_wall(p_top)
if splant == "poisonivy:seedling" and walldir ~= nil then
dbg("Spawn: poisonivy:climbing at "..dump(p_top).." on "..ssurface)
minetest.log("verbose", "Spawn: poisonivy:climbing at "..dump(p_top).." on "..ssurface)
minetest.env:add_node(p_top, { name = "poisonivy:climbing", param2 = walldir })
else
local deepnode = minetest.env:get_node({ x = pos.x, y = pos.y-depthmax-1, z = pos.z }).name
if (ssurface ~= "default:water_source")
or (ssurface == "default:water_source"
and deepnode ~= "default:water_source") then
dbg("Spawn: "..splant.." at "..dump(p_top).." on "..ssurface)
minetest.log("verbose", "Spawn: "..splant.." at "..dump(p_top).." on "..ssurface)
minetest.env:add_node(p_top, { name = splant, param2 = facedir })
end
end
@ -131,20 +183,20 @@ end
-- The growing ABM
grow_plants = function(
gdelay,
gchance,
gplant,
gresult,
dry_early_node,
grow_nodes,
facedir,
need_wall,
grow_vertically,
height_limit,
ground_nodes,
grow_function,
seed_diff)
function plantslib:grow_plants(
gdelay,
gchance,
gplant,
gresult,
dry_early_node,
grow_nodes,
facedir,
need_wall,
grow_vertically,
height_limit,
ground_nodes,
grow_function,
seed_diff)
if need_wall ~= true then need_wall = false end
if grow_vertically ~= true then grow_vertically = false end
if height_limit == nil then height_limit = 62000 end
@ -162,30 +214,30 @@ grow_plants = function(
if grow_function == nil then
if string.find(dump(grow_nodes), n_bot.name) ~= nil and n_top.name == "air" then
if grow_vertically then
if find_first_node(pos, height_limit, ground_nodes) ~= nil then
if plantslib:find_first_node(pos, height_limit, ground_nodes) ~= nil then
if need_wall then
local walldir=plant_valid_wall(p_top)
local walldir=plantslib:plant_valid_wall(p_top)
if walldir ~= nil then
dbg("Grow: "..gplant.." upwards to ("..dump(p_top)..") on wall "..walldir)
minetest.log("verbose", "Grow: "..gplant.." upwards to ("..dump(p_top)..") on wall "..walldir)
minetest.env:add_node(p_top, { name = gplant, param2 = walldir })
end
else
dbg("Grow: "..gplant.." upwards to ("..dump(p_top)..")")
minetest.log("verbose", "Grow: "..gplant.." upwards to ("..dump(p_top)..")")
minetest.env:add_node(p_top, { name = gplant })
end
end
-- corner case for changing short junglegrass to dry shrub in desert
elseif n_bot.name == dry_early_node and gplant == "junglegrass:short" then
dbg("Die: "..gplant.." becomes default:dry_shrub at ("..dump(pos)..")")
minetest.log("verbose", "Die: "..gplant.." becomes default:dry_shrub at ("..dump(pos)..")")
minetest.env:add_node(pos, { name = "default:dry_shrub" })
elseif gresult == nil then
dbg("Die: "..gplant.." at ("..dump(pos)..")")
minetest.log("verbose", "Die: "..gplant.." at ("..dump(pos)..")")
minetest.env:remove_node(pos)
elseif gresult ~= nil then
dbg("Grow: "..gplant.." becomes "..gresult.." at ("..dump(pos)..")")
minetest.log("verbose", "Grow: "..gplant.." becomes "..gresult.." at ("..dump(pos)..")")
if facedir == nil then
minetest.env:add_node(pos, { name = gresult })
else
@ -199,7 +251,7 @@ grow_plants = function(
local perlin2 = minetest.env:get_perlin(temperature_seeddiff, temperature_octaves, temperature_persistence, temperature_scale)
local noise1 = perlin1:get2d({x=p_top.x, y=p_top.z})
local noise2 = perlin2:get2d({x=p_top.x, y=p_top.z})
dbg("Call function: "..grow_function.."("..dump(pos)..","..noise1..","..noise2..")")
minetest.log("verbose", "Call function: "..grow_function.."("..dump(pos)..","..noise1..","..noise2..")")
assert(loadstring(grow_function.."("..dump(pos)..","..noise1..","..noise2..")"))()
end
end
@ -209,7 +261,7 @@ end
-- function to decide if a node has a wall that's in verticals_list{}
-- returns wall direction of valid node, or nil if invalid.
plant_valid_wall = function(wallpos)
function plantslib:plant_valid_wall(wallpos)
local walldir = nil
local verts = dump(verticals_list)
@ -230,7 +282,7 @@ end
-- Function to search straight down from (pos) to find first node in match list.
find_first_node = function(pos, height_limit, nodelist)
function plantslib:find_first_node(pos, height_limit, nodelist)
for i = 1, height_limit do
n = minetest.env:get_node({x=pos.x, y=pos.y-i, z=pos.z})
if string.find(dump(nodelist),n.name) ~= nil then

9
poinsonivy/init.lua
View File

@ -4,7 +4,7 @@ local spawn_delay = 2000 -- 2000
local spawn_chance = 100 -- 100
local grow_delay = 1000 -- 1000
local grow_chance = 10 -- 10
local poisonivy_seed_diff = plantlife_seed_diff + 10
local poisonivy_seed_diff = plantslib.plantlife_seed_diff + 10
local verticals_list = {
"default:dirt",
@ -63,9 +63,8 @@ minetest.register_node(':poisonivy:climbing', {
},
})
spawn_on_surfaces(spawn_delay, "poisonivy:seedling", 10 , spawn_chance/10, "default:dirt_with_grass", {"group:poisonivy","group:flower"}, poisonivy_seed_diff, 7)
plantslib:spawn_on_surfaces(spawn_delay, "poisonivy:seedling", 10 , spawn_chance/10, "default:dirt_with_grass", {"group:poisonivy","group:flower"}, poisonivy_seed_diff, 7)
grow_plants(spawn_delay, grow_chance, "poisonivy:seedling", "poisonivy:sproutling", nil, {"default:dirt_with_grass"})
grow_plants(spawn_delay, grow_chance*2, "poisonivy:climbing", nil, nil, nil ,nil,true,true,nil,{"default:dirt_with_grass"})
plantslib:grow_plants(spawn_delay, grow_chance, "poisonivy:seedling", "poisonivy:sproutling", nil, {"default:dirt_with_grass"})
plantslib:grow_plants(spawn_delay, grow_chance*2, "poisonivy:climbing", nil, nil, nil ,nil,true,true,nil,{"default:dirt_with_grass"})