Move our [default] edits to mff_classic, alias nodes

mods/mff/mff_classic/abms.lua

@@ -0,0 +1,19 @@
+local modname = minetest.get_current_modname()
+
+minetest.register_abm({
+  nodenames = {'default:cherry_sapling', modname .. 'mg_cherry_sapling'},
+  interval = 80,
+  chance = 3,
+  action = function(pos, node)
+
+    local nu =  minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name
+    local is_soil = minetest.get_item_group(nu, 'soil')
+
+    if is_soil == 0 then
+      return
+    end
+
+    minetest.remove_node({x=pos.x, y=pos.y, z=pos.z})
+    default.grow_cherry_tree(pos, false, 'default:cherry_tree', 'default:cherry_blossom_leaves')
+  end,
+})

mods/mff/mff_classic/aliases.lua

@@ -0,0 +1,35 @@
+local modname = minetest.get_current_modname()
+
+do -- default
+  local aliases = {
+    'mg_cherry_sapling', 'acid_source', 'acid_flowing', 'sand_source', 'sand_flowing',
+    'clay_burned', 'cherry_tree', 'cherry_log', 'cherry_plank', 'cherry_blossom_leaves',
+    'cherry_leaves_deco', 'cherry_sapling', 'desert_stone_with_coal', 'desert_stone_with_copper',
+    'stone_with_tin', 'desert_stone_with_tin', 'tinblock', 'stone_with_silver',
+    'desert_stone_with_silver', 'silverblock', 'meze', 'stone_with_mithril', 'mithrilblock',
+    'stone_with_coin', 'ladder_obsidian', 'fence_cobble', 'fence_desert_cobble',
+    'fence_steelblock', 'fence_brick', 'nyancat', 'nyancat_rainbow', 'obsidian_cooled',
+    'cobble_cooled'
+  }
+  for node in pairs(aliases) do
+    minetest.register_alias('default:' .. node, modname .. ':' .. node)
+  end
+  minetest.register_alias('default:meze_block', modname .. ':meze')
+end
+
+do -- moreores
+  local aliases = {
+    'pick_silver', 'pick_mithril', 'shovel_silver', 'shovel_mithril', 'axe_silver', 'axe_mithril',
+    'sword_silver', 'sword_mithril', 'mithril_ingot', 'silver_ingot', 'tin_ingot', 'mithril_lump',
+    'silver_lump', 'tin_lump'
+  }
+  for node in pairs(aliases) do
+    minetest.register_alias('moreores:' .. node, modname .. ':' .. node)
+  end
+  minetest.register_alias('mineral_silver', modname .. ':stone_with_silver')
+  minetest.register_alias('mineral_tin', modname .. ':stone_with_tin')
+  minetest.register_alias('mineral_mithril', modname .. ':stone_with_mithril')
+  minetest.register_alias('mithril_block', modname .. ':mithrilblock')
+  minetest.register_alias('silver_block', modname .. ':silverblock')
+  minetest.register_alias('tin_block', modname .. ':tinblock')
+end

mods/mff/mff_classic/biomes.lua

@@ -0,0 +1,44 @@
+minetest.register_biome({
+  name = "cherry_blossom_forest",
+  node_shore_filler = "default:sand",
+  node_top = "default:grass",
+  depth_top = 1,
+  node_filler = "default:dirt",
+  depth_filler = 3,
+  node_dust = "air",
+  node_underwater = "default:gravel",
+  y_min = 1,
+  y_max = 40,
+  heat_point = 50,
+  humidity_point = 55,
+})
+
+minetest.register_biome({
+  name = "cherry_blossom_forest_floral",
+  node_shore_filler = "default:sand",
+  node_top = "default:grass",
+  depth_top = 1,
+  node_filler = "default:dirt",
+  depth_filler = 3,
+  node_dust = "air",
+  node_underwater = "default:gravel",
+  y_min = 1,
+  y_max = 40,
+  heat_point = 47,
+  humidity_point = 50,
+})
+
+minetest.register_biome({
+  name = "cherry_blossom_forest_grassy",
+  node_shore_filler = "default:sand",
+  node_top = "default:grass",
+  depth_top = 1,
+  node_filler = "default:dirt",
+  depth_filler = 3,
+  node_dust = "air",
+  node_underwater = "default:gravel",
+  y_min = 1,
+  y_max = 42,
+  heat_point = 55,
+  humidity_point = 55,
+})

mods/mff/mff_classic/depends.txt

@@ -0,0 +1 @@
+default

mods/mff/mff_classic/init.lua

@@ -0,0 +1,13 @@
+local modname = minetest.get_current_modname()
+local modpath = minetest.get_modpath(modname) 
+
+local thismod = {}
+_G[modname] = thismod
+
+dofile(modpath .. '/aliases.lua')
+
+dofile(modpath .. '/abms.lua')
+dofile(modpath .. '/biomes.lua')
+dofile(modpath .. '/mapgen.lua')
+dofile(modpath .. '/nodes.lua')
+dofile(modpath .. '/trees.lua')

mods/mff/mff_classic/mapgen.lua

@@ -0,0 +1,136 @@
+local modname = minetest.get_current_modname()
+
+-- Beware of Meze
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':meze',
+  wherein        = 'default:stone',
+  clust_scarcity = 40 * 40 * 40,
+  clust_num_ores = 3,
+  clust_size     = 2,
+  y_min          = 0,
+  y_max          = 64,
+  flags          = 'absheight',
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':meze',
+  wherein        = 'default:desert_stone',
+  clust_scarcity = 40 * 40 * 40,
+  clust_num_ores = 3,
+  clust_size     = 2,
+  y_min          = 0,
+  y_max          = 64,
+  flags          = 'absheight',
+})
+
+
+-- Tin
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_tin',
+  wherein	       = 'default:stone',
+  clust_scarcity = 7 * 7 * 7,
+  clust_num_ores = 3,
+  clust_size     = 7,
+  y_min	       = -31000,
+  y_max          = 12,
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':desert_stone_with_tin',
+  wherein	       = 'default:desert_stone',
+  clust_scarcity = 7 * 7 * 7,
+  clust_num_ores = 3,
+  clust_size     = 7,
+  y_min	       = -31000,
+  y_max          = 12,
+})
+
+-- Silver
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_silver',
+  wherein	       = 'default:stone',
+  clust_scarcity = 11 * 11 * 11,
+  clust_num_ores = 4,
+  clust_size     = 11,
+  y_min	       = -31000,
+  y_max          = -12,
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':desert_stone_with_silver',
+  wherein	       = 'default:desert_stone',
+  clust_scarcity = 11 * 11 * 11,
+  clust_num_ores = 4,
+  clust_size     = 11,
+  y_min	       = -31000,
+  y_max          = -12,
+})
+
+-- Mithril
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_mithril',
+  wherein	       = 'default:stone',
+  clust_scarcity = 11 * 11 * 11,
+  clust_num_ores = 1,
+  clust_size     = 11,
+  y_min	       = -31000,
+  y_max          = -1024,
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_mithril',
+  wherein	       = 'default:stone',
+  clust_scarcity = 15 * 15 * 15,
+  clust_num_ores = 2,
+  clust_size     = 3,
+  y_min	       = -31000,
+  y_max          = -2048,
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_mithril',
+  wherein	       = 'default:stone',
+  clust_scarcity = 22 * 22 * 22,
+  clust_num_ores = 5,
+  clust_size     = 5,
+  y_min	       = -31000,
+  y_max          = -4096,
+})
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_mithril',
+  wherein	       = 'default:stone',
+  clust_scarcity = 28 * 28 * 28,
+  clust_num_ores = 20,
+  clust_size     = 7,
+  y_min	       = -31000,
+  y_max          = -12288,
+})
+
+-- Gold Coins
+
+minetest.register_ore({
+  ore_type       = 'scatter',
+  ore            = modname .. ':stone_with_coin',
+  wherein        = 'default:stone',
+  clust_scarcity = 26 * 26 * 26,
+  clust_num_ores = 1,
+  clust_size     = 1,
+  y_min          = -30000,
+  y_max          = 0,
+  flags          = 'absheight',
+})

mods/mff/mff_classic/nodes.lua

@@ -0,0 +1,504 @@
+local modname = minetest.get_current_modname()
+
+minetest.register_node(modname .. ':acid_source', {
+  description = 'Acid Source',
+  inventory_image = minetest.inventorycube('default_acid.png'),
+  drawtype = 'liquid',
+  tiles = {
+    {name = 'default_acid_source_animated.png', animation={type = 'vertical_frames', aspect_w = 16, aspect_h = 16, length = 1.5}}
+  },
+  special_tiles = {
+    -- New-style acid source material (mostly unused)
+    {
+      name = 'default_acid_source_animated.png',
+      animation = {type = 'vertical_frames', aspect_w= 16, aspect_h = 16, length = 1.5},
+      backface_culling = false,
+    }
+  },
+  alpha = 160,
+  paramtype = 'light',
+  walkable = false,
+  pointable = false,
+  diggable = false,
+  buildable_to = true,
+  drop = '',
+  drowning = 2,
+  liquidtype = 'source',
+  liquid_alternative_flowing = modname .. ':acid_flowing',
+  liquid_alternative_source = modname .. ':acid_source',
+  liquid_viscosity = 1,
+  liquid_range = 4,
+  damage_per_second = 3,
+  post_effect_color = {a = 120, r = 50, g = 90, b = 30},
+  groups = {water = 3, acid = 3, liquid = 3, puts_out_fire = 1},
+})
+
+minetest.register_node(modname .. ':acid_flowing', {
+  description = 'Flowing Acid',
+  inventory_image = minetest.inventorycube('default_acid.png'),
+  drawtype = 'flowingliquid',
+  tiles = {'default_acid.png'},
+  special_tiles = {
+    {
+      image = 'default_acid_flowing_animated.png',
+      backface_culling=false,
+      animation={type = 'vertical_frames', aspect_w= 16, aspect_h = 16, length = 0.6}
+    },
+    {
+      image = 'default_acid_flowing_animated.png',
+      backface_culling=true,
+      animation={type = 'vertical_frames', aspect_w= 16, aspect_h = 16, length = 0.6}
+    },
+  },
+  alpha = 160,
+  paramtype = 'light',
+  paramtype2 = 'flowingliquid',
+  walkable = false,
+  pointable = false,
+  diggable = false,
+  buildable_to = true,
+  drop = '',
+  drowning = 2,
+  liquidtype = 'flowing',
+  liquid_alternative_flowing = modname .. ':acid_flowing',
+  liquid_alternative_source = modname .. ':acid_source',
+  liquid_viscosity = 1,
+  liquid_range = 4,
+  damage_per_second = 3,
+  post_effect_color = {a = 120, r = 50, g = 90, b = 30},
+  groups = {water = 3, acid = 3, liquid = 3, puts_out_fire = 1, not_in_creative_inventory = 1},
+})
+
+minetest.register_node(modname .. ':sand_source', {
+  description = 'Sand Source',
+  inventory_image = minetest.inventorycube('default_sand.png'),
+  drawtype = 'liquid',
+  tiles = {'default_sand.png'},
+  alpha = 255,
+  paramtype = 'light',
+  walkable = false,
+  pointable = false,
+  diggable = false,
+  buildable_to = true,
+  drop = '',
+  drowning = 4,
+  liquidtype = 'source',
+  liquid_alternative_flowing = modname .. ':sand_flowing',
+  liquid_alternative_source = modname .. ':sand_source',
+  liquid_viscosity = 20,
+  liquid_renewable = false,
+  post_effect_color = {a = 250, r = 0, g = 0, b = 0},
+  groups = {liquid = 3},
+})
+
+minetest.register_node(modname .. ':sand_flowing', {
+  description = 'Flowing Sand',
+  inventory_image = minetest.inventorycube('default_sand.png'),
+  drawtype = 'flowingliquid',
+  tiles = {'default_sand.png'},
+  special_tiles = {
+    {
+      image = 'default_sand_flowing_animated.png',
+      backface_culling=false,
+      animation={type = 'vertical_frames', aspect_w= 16, aspect_h = 16, length = 0.6}
+    },
+    {
+      image = 'default_sand_flowing_animated.png',
+      backface_culling=true,
+      animation={type = 'vertical_frames', aspect_w= 16, aspect_h = 16, length = 0.6}
+    },
+  },
+  alpha = 255,
+  paramtype = 'light',
+  paramtype2 = 'flowingliquid',
+  walkable = false,
+  pointable = false,
+  diggable = false,
+  buildable_to = true,
+  drop = '',
+  drowning = 4,
+  liquidtype = 'flowing',
+  liquid_alternative_flowing = modname .. ':sand_flowing',
+  liquid_alternative_source = modname .. ':sand_source',
+  liquid_viscosity = 20,
+  post_effect_color = {a = 250, r = 0, g = 0, b = 0},
+  groups = {liquid = 3, not_in_creative_inventory = 1},
+})
+
+
+minetest.register_node(modname .. ':clay_burned', {
+  description = 'Burned Clay',
+  tiles = {'default_clay_burned.png'},
+  is_ground_content = true,
+  groups = {crumbly = 3},
+  drop = 'default:clay_lump 4',
+  sounds = default.node_sound_dirt_defaults(),
+})
+
+-- From BFD, cherry tree
+minetest.register_node(modname .. ':cherry_tree', {
+  description = 'Cherry Log',
+  tiles = {'default_cherry_top.png', 'default_cherry_top.png', 'default_cherry_tree.png'},
+  is_ground_content = false,
+  groups = {tree=1,choppy=2,oddly_breakable_by_hand=1,flammable=2},
+  sounds = default.node_sound_wood_defaults(),
+  drop = modname .. 'cherry_log'
+})
+
+minetest.register_node(modname .. ':cherry_log', {
+  description = 'Cherry Log',
+  tiles = {'default_cherry_top.png', 'default_cherry_top.png', 'default_cherry_tree.png'},
+  paramtype2 = 'facedir',
+  is_ground_content = false,
+  groups = {choppy=2,oddly_breakable_by_hand=1,flammable=2},
+  sounds = default.node_sound_wood_defaults(),
+  on_place = minetest.rotate_node,
+})
+
+minetest.register_node(modname .. ':cherry_plank', {
+  description = 'Cherry Planks',
+  tiles = {'default_wood_cherry_planks.png'},
+  sounds = default.node_sound_wood_defaults(),
+  groups = {oddly_breakable_by_hand=1, flammable=1, choppy=3, wood=1},
+})
+
+minetest.register_node(modname .. ':cherry_blossom_leaves', {
+  description = 'Cherry Blossom Leaves',
+  drawtype = 'allfaces_optional',
+  visual_scale = 1.3,
+  tiles = {'default_cherry_blossom_leaves.png'},
+  paramtype = 'light',
+  waving = 1,
+  is_ground_content = false,
+  groups = {snappy=3, leafdecay=3, leafdecay_drop = 1, flammable=2, leaves=1},
+  drop = {
+    max_items = 1,
+    items = {
+      {
+        items = {modname .. ':cherry_sapling'},
+        rarity = 32,
+      },
+      {
+        items = {modname .. ':cherry_blossom_leaves'},
+      }
+    }
+  },
+  sounds = default.node_sound_leaves_defaults(),
+  on_place = function(itemstack, placer, pointed_thing)
+    -- place a random grass node
+    local stack = ItemStack(modname .. ':cherry_leaves_deco')
+    local ret = minetest.item_place(stack, placer, pointed_thing)
+    return ItemStack(modname .. ':cherry_blossom_leaves'..' '..itemstack:get_count()-(1-ret:get_count()))
+  end,
+})
+
+minetest.register_node(modname .. ':cherry_leaves_deco', {
+  description = 'Cherry Leaves',
+  drawtype = 'allfaces_optional',
+  visual_scale = 1.3,
+  tiles = {'default_cherry_blossom_leaves.png'},
+  paramtype = 'light',
+  waving=1,
+  is_ground_content = false,
+  groups = {snappy=3, flammable=2, leaves=1},
+  sounds = default.node_sound_leaves_defaults(),
+  drop = {modname .. 'cherry_blossom_leaves'},
+})
+
+minetest.register_node(modname .. ':cherry_sapling', {
+  description = 'Cherry Sapling',
+  waving = 1,
+  visual_scale = 1.0,
+  inventory_image = 'default_cherry_sapling.png',
+  wield_image = 'default_cherry_sapling.png',
+  drawtype = 'plantlike',
+  paramtype = 'light',
+  tiles = {'default_cherry_sapling.png'},
+  walkable = false,
+  selection_box = {
+    type = 'fixed',
+    fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+  },
+  groups = {snappy = 2, dig_immediate = 3, flammable = 2,
+    attached_node = 1, sapling = 1},
+  sounds = default.node_sound_leaves_defaults(),
+})
+
+minetest.register_node(modname .. ':desert_stone_with_coal', {
+  description = 'Coal Ore',
+  tiles = {'default_desert_stone.png^default_mineral_coal.png'},
+  is_ground_content = true,
+  groups = {crumbly = 1, cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:desert_cobble'}},
+      {items = {'default:coal_lump'}},
+      {items = {'maptools:copper_coin'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':desert_stone_with_copper', {
+  description = 'Copper Ore',
+  tiles = {'default_desert_stone.png^default_mineral_copper.png'},
+  is_ground_content = true,
+  groups = {crumbly = 1, cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:desert_cobble'}},
+      {items = {'default:copper_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':stone_with_tin', {
+  description = 'Tin Ore',
+  tiles = {'default_stone.png^default_mineral_tin.png'},
+  is_ground_content = true,
+  groups = {cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:cobble'}},
+      {items = {'default:tin_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':desert_stone_with_tin', {
+  description = 'Tin Ore',
+  tiles = {'default_desert_stone.png^default_mineral_tin.png'},
+  is_ground_content = true,
+  groups = {crumbly = 1, cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:desert_cobble'}},
+      {items = {'default:tin_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':tinblock', {
+  description = 'Tin Block',
+  tiles = {'default_tin_block.png'},
+  is_ground_content = false,
+  groups = {snappy = 1, bendy = 2, cracky = 1, melty = 2, level = 2},
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':stone_with_silver', {
+  description = 'Silver Ore',
+  tiles = {'default_stone.png^default_mineral_silver.png'},
+  is_ground_content = true,
+  groups = {cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:cobble'}},
+      {items = {'default:silver_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':desert_stone_with_silver', {
+  description = 'Silver Ore',
+  tiles = {'default_desert_stone.png^default_mineral_silver.png'},
+  is_ground_content = true,
+  groups = {crumbly = 1, cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:desert_cobble'}},
+      {items = {'default:silver_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':silverblock', {
+  description = 'Silver Block',
+  tiles = {'default_silver_block.png'},
+  is_ground_content = false,
+  groups = {snappy = 1, bendy = 2, cracky = 1, melty = 2, level = 2},
+  sounds = default.node_sound_stone_defaults(),
+})
+
+-- Meze
+
+local function die_later(digger)
+  digger:set_hp(0)
+end
+
+minetest.register_node(modname .. ':meze', {
+  description = 'Meze Block',
+  tiles = {'default_meze_block.png'},
+  is_ground_content = true,
+  drop = '',
+  groups = {cracky = 1, level = 2, fall_damage_add_percent = -75},
+  sounds = default.node_sound_wood_defaults(), -- Intended.
+
+  on_dig = function(pos, node, digger)
+    if digger and minetest.setting_getbool('enable_damage') and not minetest.setting_getbool('creative_mode') then
+      minetest.after(3, die_later, digger)
+      minetest.chat_send_player(digger:get_player_name(), 'You feel like you did a mistake.')
+      minetest.node_dig(pos, node, digger)
+    elseif digger then
+      minetest.node_dig(pos, node, digger)
+    end
+  end,
+})
+
+-- Mithril
+
+minetest.register_node(modname .. ':stone_with_mithril', {
+  description = 'Mithril Ore',
+  tiles = {'default_stone.png^default_mineral_mithril.png'},
+  is_ground_content = true,
+  groups = {cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:cobble'}},
+      {items = {'default:mithril_lump'}},
+      {items = {'maptools:copper_coin 3'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':mithrilblock', {
+  description = 'Mithril Block',
+  tiles = {'default_mithril_block.png'},
+  is_ground_content = false,
+  groups = {snappy = 1, bendy = 2, cracky = 1, melty = 2, level = 2},
+  sounds = default.node_sound_stone_defaults(),
+})
+
+--
+
+minetest.register_node(modname .. ':stone_with_coin', {
+  description = 'Stone with Coin',
+  tiles = {'default_stone.png^maptools_gold_coin.png'},
+  is_ground_content = true,
+  groups = {cracky = 3},
+  drop = {
+    items = {
+      {items = {'default:cobble'}},
+      {items = {'maptools:gold_coin'}},
+    },
+  },
+  sounds = default.node_sound_stone_defaults(),
+})
+
+minetest.register_node(modname .. ':ladder_obsidian', {
+  description = "Obsidian Ladder",
+  drawtype = 'signlike',
+  tiles = {'default_ladder_obsidian.png'},
+  inventory_image = 'default_ladder_obsidian.png',
+  wield_image = 'default_ladder_obsidian.png',
+  paramtype = 'light',
+  paramtype2 = 'wallmounted',
+  sunlight_propagates = true,
+  walkable = false,
+  climbable = true,
+  is_ground_content = false,
+  selection_box = {
+    type = 'wallmounted',
+    --wall_top = = <default>
+    --wall_bottom = = <default>
+    --wall_side = = <default>
+  },
+  groups = {cracky = 2},
+  sounds = default.node_sound_stone_defaults(),
+})
+
+default.register_fence(modname .. ':fence_cobble', {
+  description = "Cobble Fence",
+  texture = 'default_fence_cobble.png',
+  material = 'default:cobble',
+  groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
+  sounds = default.node_sound_wood_defaults()
+})
+
+default.register_fence(modname .. ':fence_desert_cobble', {
+  description = "Desert Cobble Fence",
+  texture = 'default_fence_desert_cobble.png',
+  material = 'default:desert_cobble',
+  groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
+  sounds = default.node_sound_wood_defaults()
+})
+
+default.register_fence(modname .. ':fence_steelblock', {
+  description = "Steel Block Fence",
+  texture = 'default_fence_steelblock.png',
+  material = 'default:steelblock',
+  groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
+  sounds = default.node_sound_wood_defaults()
+})
+
+default.register_fence(modname .. ':fence_brick', {
+  description = "Brick Fence",
+  texture = 'default_fence_brick.png',
+  material = 'default:brick',
+  groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
+  sounds = default.node_sound_wood_defaults()
+})
+
+-- Nyan cat
+
+minetest.register_node(modname .. ':nyancat', {
+  description = "Nyan Cat",
+  tiles = {'default_nc_side.png', 'default_nc_side.png', 'default_nc_side.png',
+    'default_nc_side.png', 'default_nc_back.png', 'default_nc_front.png'},
+  paramtype2 = 'facedir',
+  groups = {cracky = 2},
+  is_ground_content = false,
+  post_effect_color = {a = 128, r= 255, g= 128, b= 255},
+  legacy_facedir_simple = true,
+  sounds = default.node_sound_defaults(),
+})
+
+minetest.register_node(modname .. ':nyancat_rainbow', {
+  description = "Nyan Cat Rainbow",
+  drawtype = 'glasslike',
+  tiles = {
+    'default_nc_rb.png^[transformR90', 'default_nc_rb.png^[transformR90',
+    'default_nc_rb.png', 'default_nc_rb.png'
+  },
+  paramtype = 'light',
+  paramtype2 = 'facedir',
+  groups = {cracky = 2},
+  sunlight_propagate = true,
+  walkable = false,
+  use_texture_alpha = true,
+  climbable = true,
+  is_ground_content = false,
+  post_effect_color = {a = 128, r= 255, g= 128, b= 255},
+  sounds = default.node_sound_defaults(),
+})
+
+--
+
+minetest.register_node(modname .. ':obsidian_cooled', {
+  description = "Obsidian (cooled)",
+  tiles = {'default_obsidian.png'},
+  is_ground_content = true,
+  drop = 'default:obsidian',
+  sounds = default.node_sound_stone_defaults(),
+  groups = {cracky = 1, level = 2},
+})
+
+minetest.register_node(modname .. ':cobble_cooled', {
+  description = "Cobblestone (cooled)",
+  tiles = {'default_cobble.png'},
+  is_ground_content = true,
+  drop = 'default:cobble',
+  groups = {cracky = 3, stone = 2},
+  sounds = default.node_sound_stone_defaults(),
+})

mods/mff/mff_classic/trees.lua

@@ -0,0 +1,68 @@
+local modname = minetest.get_current_modname()
+
+-- From BFD:
+
+minetest.register_node(modname .. 'mg_cherry_sapling', {
+  description = "Impossible to get node.",
+  drawtype = 'airlike',
+  paramtype = 'light',
+  tiles = {'xfences_space.png'},
+  groups = {not_in_creative_inventory=1},
+})
+
+local c_mg_cherry_sapling = minetest.get_content_id(modname .. 'mg_cherry_sapling')
+
+minetest.register_on_generated(function(minp, maxp, seed)
+  local timer = os.clock()
+  local vm, emin, emax = minetest.get_mapgen_object('voxelmanip')
+  local data = vm:get_data()
+  local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
+  local trees_grown = 0
+  for z=minp.z, maxp.z, 1 do
+    for y=minp.y, maxp.y, 1 do
+      for x=minp.x, maxp.x, 1 do
+        local p_pos = area:index(x,y,z)
+        local content_id = data[p_pos]
+        if content_id == c_mg_cherry_sapling then
+          minetest.after(1, default.grow_cherry_tree,
+            {x=x, y=y, z=z},
+            false,
+            modname .. ':cherry_tree',
+            modname .. ':cherry_blossom_leaves')
+          trees_grown = trees_grown + 1
+        else
+          -- nope
+        end
+      end
+    end
+  end
+  local geninfo = string.format(" trees grown after: %.2fs", os.clock() - timer)
+  minetest.log('action', trees_grown..geninfo)
+end)
+
+function default.grow_cherry_tree(pos, is_apple_tree, trunk_node, leaves_node)
+  --[[
+    NOTE: Tree-placing code is currently duplicated in the engine
+    and in games that have saplings; both are deprecated but not
+    replaced yet
+  --]]
+
+  local x, y, z = pos.x, pos.y, pos.z
+  local height = random(4, 5)
+  local c_tree = minetest.get_content_id(trunk_node)
+  local c_leaves = minetest.get_content_id(leaves_node)
+
+  local vm = minetest.get_voxel_manip()
+  local minp, maxp = vm:read_from_map(
+    {x = pos.x - 2, y = pos.y, z = pos.z - 2},
+    {x = pos.x + 2, y = pos.y + height + 1, z = pos.z + 2}
+  )
+  local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
+  local data = vm:get_data()
+
+  add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
+
+  vm:set_data(data)
+  vm:write_to_map()
+  vm:update_map()
+end