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Fixed a bug in direct growing of trees

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Vanessa Ezekowitz 2013-01-20 13:37:58 -05:00
parent 40b4cc677a
commit 34b7ad4f32
2 changed files with 23 additions and 18 deletions
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31
API.txt
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@ -184,7 +184,7 @@ 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)
ground_nodes, grow_function, seed_diff)
gdelay: Passed as the ABM "interval" parameter, as with spawning.
gchance: Passed as the ABM "chance" parameter.
@ -221,21 +221,20 @@ ground_nodes: What nodes should be treated as "the ground" below a
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.
grow_function: String indicating what function to use to grow the plant, if
any, or a table with an L-Systems tree model, or nil. If it's
nil, If it's nil, a regular plant will be inserted in place
of the one being grown, per the above variables. If it's a
string, the function named therein is executed and passed a
parameter for the current position, followed by the "can grow
here" and temperature map Perlin values at that location. If
it's a table, the tree described by that table is spawned at
the current position. In both cases, all parameters from
gresult to ground_nodes are ignored.
seed_diff: The Perlin seed diff to be use to calculate the first 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.
-----

6
plants_lib/init.lua
View File

@ -258,10 +258,16 @@ function plantslib:grow_plants(
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 type(grow_function) == "table" then
minetest.log("verbose", "Grow sapling into tree at "..dump(pos))
minetest.env:remove_node(pos)
minetest.env:spawn_tree(pos, grow_function)
else
minetest.log("verbose", "Call function: "..grow_function.."("..dump(pos)..","..noise1..","..noise2..")")
assert(loadstring(grow_function.."("..dump(pos)..","..noise1..","..noise2..")"))()
end
end
end
})
end