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vines.register_vine = function( name, defs, biome )
local biome = biome
local groups = { vines=1, snappy=3, flammable=2 }
local vine_name_end = 'vines:'..name..'_end'
local vine_name_middle = 'vines:'..name..'_middle'
local vine_image_end = "vines_"..name.."_end.png"
local vine_image_middle = "vines_"..name.."_middle.png"
local drop_node = vine_name_end
biome.spawn_plants = { vine_name_end }
local vine_group = 'group:'..name..'_vines'
biome.spawn_surfaces[ #biome.spawn_surfaces + 1 ] = vine_group
local selection_box = { type = "wallmounted", }
local drawtype = 'signlike'
if ( not biome.spawn_on_side ) then
--different properties for bottom and side vines.
selection_box = { type = "fixed", fixed = { -0.4, -1/2, -0.4, 0.4, 1/2, 0.4 }, }
drawtype = 'plantlike'
end
minetest.register_node( vine_name_end, {
description = defs.description,
walkable = false,
climbable = true,
wield_image = vine_image_end,
drop = "",
sunlight_propagates = true,
paramtype = "light",
paramtype2 = "wallmounted",
buildable_to = false,
tiles = { vine_image_end },
drawtype = drawtype,
inventory_image = vine_image_end,
groups = groups,
sounds = default.node_sound_leaves_defaults(),
selection_box = selection_box,
on_construct = function( pos )
local timer = minetest.get_node_timer( pos )
timer:start( math.random(5, 10) )
end,
on_timer = function( pos )
local node = minetest.get_node( pos )
local bottom = {x=pos.x, y=pos.y-1, z=pos.z}
local bottom_node = minetest.get_node( bottom )
if bottom_node.name == "air" then
if not ( math.random( defs.average_length ) == 1 ) then
minetest.set_node( pos, { name = vine_name_middle, param2 = node.param2 } )
minetest.set_node( bottom, { name = node.name, param2 = node.param2 } )
local timer = minetest.get_node_timer( bottom_node )
timer:start( math.random(5, 10) )
end
end
end,
after_dig_node = function(pos, node, oldmetadata, user)
vines.dig_vine( pos, drop_node, user )
end
})
minetest.register_node( vine_name_middle, {
description = "Matured "..defs.description,
walkable = false,
climbable = true,
drop = "",
sunlight_propagates = true,
paramtype = "light",
paramtype2 = "wallmounted",
buildable_to = false,
tiles = { vine_image_middle },
wield_image = vine_image_middle,
drawtype = drawtype,
inventory_image = vine_image_middle,
groups = groups,
sounds = default.node_sound_leaves_defaults(),
selection_box = selection_box,
on_destruct = function( pos )
local node = minetest.get_node( pos )
local bottom = {x=pos.x, y=pos.y-1, z=pos.z}
local bottom_node = minetest.get_node( bottom )
if minetest.get_item_group( bottom_node.name, "vines") > 0 then
-- Calling `remove_node` directly would cause
-- a stack overflow for really long vines.
minetest.after( 0, minetest.remove_node, bottom )
end
end,
after_dig_node = function( pos, node, oldmetadata, user )
vines.dig_vine( pos, drop_node, user )
end
})
biome_lib:spawn_on_surfaces( biome )
local override_nodes = function( nodes, defs )
local function override( index, registered )
local node = nodes[ index ]
if index > #nodes then return registered end
if minetest.registered_nodes[node] then
minetest.override_item( node, defs )
registered[#registered+1] = node
end
override( index+1, registered )
end
override( 1, {} )
end
override_nodes( biome.spawn_surfaces,{
after_destruct = function( pos )
local pos_min = { x = pos.x -1, y = pos.y - 1, z = pos.z - 1 }
local pos_max = { x = pos.x +1, y = pos.y + 1, z = pos.z + 1 }
local positions = minetest.find_nodes_in_area( pos_min, pos_max, "group:vines" )
for index, position in pairs(positions) do
minetest.remove_node( position )
end
end
})
end
vines.dig_vine = function( pos, node_name, user )
--only dig give the vine if shears are used
if not user then return false end
local wielded = user:get_wielded_item()
if 'vines:shears' == wielded:get_name() then
local inv = user:get_inventory()
if inv then
inv:add_item("main", ItemStack( node_name ))
end
end
end
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