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Enable generating objects on sides or bottom of nodes at mapgen time (#2)

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* biome_lib.register_on_generate now supports spawn_on_sides and spawn_on_bottom flags
* biome_lib.register_on_generate now passes node position and face direction to node placement function
* Replacing spaces with tabs
* Fixing API to ensure it behaves same way it used to, when not passing spawn_on_sides or spawn_on_bottom flags.
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Jordan Leppert 2021-12-06 18:22:29 +00:00 committed by GitHub
parent 4e3493a981
commit 823db77217
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 33 additions and 19 deletions
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36
api.lua
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@ -309,12 +309,34 @@ function biome_lib.populate_surfaces(b, nodes_or_function_or_model, snodes, chec
local spawned = false
while tries < 2 and not spawned do
local pos = in_biome_nodes[math.random(1, num_in_biome_nodes)]
if biome.spawn_replace_node then
local will_place = true
local fdir = nil
if biome.random_facedir then
fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
end
if biome.spawn_on_side then
local onside = biome_lib.find_open_side(pos)
if onside then
pos = onside.newpos
fdir = onside.facedir
else
will_place = false
end
elseif biome.spawn_on_bottom then
if minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name == "air" then
pos.y = pos.y - 1
else
will_place = false
end
elseif biome.spawn_replace_node then
pos.y = pos.y-1
end
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
if not (biome.avoid_nodes and biome.avoid_radius
if will_place and not (biome.avoid_nodes and biome.avoid_radius
and minetest.find_node_near(p_top, biome.avoid_radius
+ math.random(-1.5,2), biome.avoid_nodes)) then
if biome.delete_above then
@ -346,10 +368,6 @@ function biome_lib.populate_surfaces(b, nodes_or_function_or_model, snodes, chec
biome_lib.dbg("An L-tree was spawned at "..minetest.pos_to_string(p_top), 4)
spawned = true
else
local fdir = nil
if biome.random_facedir then
fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
end
local n=nodes_or_function_or_model[math.random(#nodes_or_function_or_model)]
minetest.swap_node(p_top, { name = n, param2 = fdir })
biome_lib.dbg("Node \""..n.."\" was randomly picked from a list and placed at "..minetest.pos_to_string(p_top), 4)
@ -357,15 +375,11 @@ function biome_lib.populate_surfaces(b, nodes_or_function_or_model, snodes, chec
end
elseif objtype == "string" and
minetest.registered_nodes[nodes_or_function_or_model] then
local fdir = nil
if biome.random_facedir then
fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
end
minetest.swap_node(p_top, { name = nodes_or_function_or_model, param2 = fdir })
biome_lib.dbg("Node \""..nodes_or_function_or_model.."\" was placed at "..minetest.pos_to_string(p_top), 4)
spawned = true
elseif objtype == "function" then
nodes_or_function_or_model(pos)
nodes_or_function_or_model(pos, fdir)
biome_lib.dbg("A function was run on surface node at "..minetest.pos_to_string(pos), 4)
spawned = true
elseif objtype == "string" and pcall(loadstring(("return %s(...)"):