cave pearls and spindleshrooms (name subject to change) now are things. Not in mapgen yet.

df_caverns/sunless_sea.lua

@@ -372,6 +372,7 @@ local decorate_sunless_sea = function(minp, maxp, seed, vm, node_arrays, area, d
 				end
 			else
 				data[vi] = c_coral_table[math.random(1,3)]
+				data_param2[vi] = math.random(1,4)-1
 			end
 		end
 	end

df_mapitems/cave_coral.lua

@@ -10,6 +10,7 @@ minetest.register_node("df_mapitems:cave_coral_3", {
 	is_ground_content = true,
 	drop = "default:coral_skeleton",
 	light_source = 3,
+	paramtype2 = "facedir",
 	groups = {cracky = 3, dfcaverns_cave_coral = 1},
 	sounds = default.node_sound_stone_defaults(),
 })
@@ -22,6 +23,7 @@ minetest.register_node("df_mapitems:cave_coral_2", {
 	is_ground_content = true,
 	drop = "default:coral_skeleton",
 	light_source = 2,
+	paramtype2 = "facedir",
 	groups = {cracky = 3, dfcaverns_cave_coral = 1},
 	sounds = default.node_sound_stone_defaults(),
 })
@@ -34,6 +36,7 @@ minetest.register_node("df_mapitems:cave_coral_1", {
 	is_ground_content = true,
 	drop = "default:coral_skeleton",
 	light_source = 1,
+	paramtype2 = "facedir",
 	groups = {cracky = 3, dfcaverns_cave_coral = 1},
 	sounds = default.node_sound_stone_defaults(),
 })
@@ -46,7 +49,8 @@ minetest.register_abm{
 	interval = 2,
 	chance = 10,
 	action = function(pos)
-		minetest.swap_node(pos, {name=coral_names[math.random(1,3)]})
+		local node = minetest.get_node(pos)
+		minetest.swap_node(pos, {name=coral_names[math.random(1,3)], param2=node.param2})
 	end,
 }
 

df_mapitems/cave_pearls.lua

@@ -0,0 +1,154 @@
+-- internationalization boilerplate
+local MP = minetest.get_modpath(minetest.get_current_modname())
+local S, NS = dofile(MP.."/intllib.lua")
+
+local pearl_on_place = function(itemstack, placer, pointed_thing)
+	local pt = pointed_thing
+	-- check if pointing at a node
+	if not pt then
+		return itemstack
+	end
+	if pt.type ~= "node" then
+		return itemstack
+	end
+	
+	local under_pos = pt.under
+	local above_pos = pt.above
+
+	local under_node = minetest.get_node(under_pos)
+	local above_node = minetest.get_node(above_pos)
+
+	if minetest.is_protected(above_pos, placer:get_player_name()) then
+		minetest.record_protection_violation(above_pos, placer:get_player_name())
+		return
+	end
+
+	local under_name = under_node.name
+	local above_name = above_node.name
+	local under_def = minetest.registered_nodes[under_name]
+	local above_def = minetest.registered_nodes[above_name]
+	
+	-- return if any of the nodes is not registered
+	if not under_def or not above_def then
+		return itemstack
+	end
+	-- check if you can replace the node above the pointed node
+	if not above_def.buildable_to then
+		return itemstack
+	end
+
+	local dir = vector.subtract(under_pos, above_pos)
+	local param2
+	if dir.x > 0 then
+		--facing +x: 16, 17, 18, 19,
+		param2 = 15 + math.random(1,4)
+	elseif dir.x < 0 then
+		--facing -x: 12, 13, 14, 15
+		param2 = 11 + math.random(1,4)
+	elseif dir.z > 0 then
+		--facing +z: 8, 9, 10, 11
+		param2 = 7 + math.random(1,4)
+	elseif dir.z < 0 then
+		--facing -z: 4, 5, 6, 7
+		param2 = 3 + math.random(1,4)
+	elseif dir.y > 0 then
+		--facing -y: 20, 21, 22, 23 (ceiling)
+		param2 = 19 + math.random(1,4)
+	else
+		--facing +y: 0, 1, 2, 3 (floor)
+		param2 = math.random(1,4) - 1
+	end
+
+	-- add the node and remove 1 item from the itemstack
+	minetest.add_node(above_pos, {name = itemstack:get_name(), param2 = param2})
+	if not minetest.setting_getbool("creative_mode") and not minetest.check_player_privs(placer, "creative") then
+		itemstack:take_item()
+	end
+	return itemstack
+end
+
+local valid_mounting_node = function(pos)
+	local node = minetest.get_node(pos)
+	if not node then return false end
+	local def = minetest.registered_nodes[node.name]
+	if not def then return false end
+	if def.buildable_to then return false end
+	return true
+end
+
+local add_to_table = function(dest, source)
+	for _, val in ipairs(source) do
+		table.insert(dest, val)
+	end
+end
+
+local get_valid_facedirs = function(pos)
+	local dirs = {}
+	if valid_mounting_node(vector.add(pos, {x=1,y=0,z=0})) then
+		add_to_table(dirs, {16, 17, 18, 19})
+	end
+	if valid_mounting_node(vector.add(pos, {x=-1,y=0,z=0})) then
+		add_to_table(dirs, {12, 13, 14, 15})
+	end
+	if valid_mounting_node(vector.add(pos, {x=0,y=1,z=0})) then
+		add_to_table(dirs, {0, 1, 2, 3})
+	end
+	if valid_mounting_node(vector.add(pos, {x=0,y=-1,z=0})) then
+		add_to_table(dirs, {20, 21, 22, 23})
+	end
+	if valid_mounting_node(vector.add(pos, {x=0,y=0,z=1})) then
+		add_to_table(dirs, {8, 9, 10, 11})
+	end
+	if valid_mounting_node(vector.add(pos, {x=0,y=0,z=-1})) then
+		add_to_table(dirs, {4, 5, 6, 7})
+	end
+end
+
+minetest.register_node("df_mapitems:wall_pearls", {
+	description = S("Cave Pearls"),
+	tiles = {"dfcaverns_cave_pearl.png"},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	groups = {cracky = 2},
+	walkable = false,
+	climbable = true,
+	light_source = 4,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.375, -0.5, -0.375, -0.125, -0.3125, -0.125}, -- NodeBox1
+			{0.125, -0.5, -0.1875, 0.3125, -0.375, 0}, -- NodeBox2
+			{-0.125, -0.5, 0.25, 0.0625, -0.375, 0.4375}, -- NodeBox3
+		}
+	},
+	on_place = pearl_on_place,
+})
+
+local c_air = minetest.get_content_id("air")
+local c_stone = minetest.get_content_id("default:stone")
+local c_pearls = minetest.get_content_id("df_mapitems:wall_pearls")
+
+--facing +x: 16, 17, 18, 19, 
+--facing -x: 12, 13, 14, 15
+--facing +z: 8, 9, 10, 11
+--facing -z: 4, 5, 6, 7
+--facing -y: 20, 21, 22, 23, (ceiling)
+df_mapitems.place_wall_pearls = function(vi, area, data, data_param2)
+	if data[vi] == c_air then
+		if data[vi+1] == c_stone then -- positive X
+			data[vi] = c_pearls
+			data_param2[vi] = 15 + math.random(1,4)
+		elseif data[vi-1] == c_stone then -- negative X
+			data[vi] = c_pearls
+			data_param2[vi] = 11 + math.random(1,4)
+		elseif data[vi+area.zstride] == c_stone then -- positive Z
+			data[vi] = c_pearls
+			data_param2[vi] = 7 + math.random(1,4)
+		elseif data[vi-area.zstride] == c_stone then -- negative Z
+			data[vi] = c_pearls
+			data_param2[vi] = 3 + math.random(1,4)
+		end
+	end
+end
+

df_mapitems/init.lua

@@ -17,4 +17,5 @@ dofile(modpath.."/cave_coral.lua")
 dofile(modpath.."/crystals_mese.lua")
 dofile(modpath.."/crystals_ruby.lua")
 
-dofile(modpath.."/veinstone.lua")
+dofile(modpath.."/veinstone.lua")
+dofile(modpath.."/cave_pearls.lua")

df_trees/fungiwood.lua

@@ -125,9 +125,12 @@ minetest.register_node("df_trees:fungiwood_sapling", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_construct = function(pos)
-		minetest.get_node_timer(pos):start(math.random(
-			df_trees.config.fungiwood_delay_multiplier*df_trees.config.tree_min_growth_delay,
-			df_trees.config.fungiwood_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+		if minetest.get_item_group(below_node.name, "soil") > 0 then
+			minetest.get_node_timer(pos):start(math.random(
+				df_trees.config.fungiwood_delay_multiplier*df_trees.config.tree_min_growth_delay,
+				df_trees.config.fungiwood_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		end
 	end,
 	
 	on_timer = function(pos)

df_trees/goblin_cap.lua

@@ -154,9 +154,12 @@ minetest.register_node("df_trees:goblin_cap_sapling", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_construct = function(pos)
-		minetest.get_node_timer(pos):start(math.random(
-			df_trees.config.goblin_cap_delay_multiplier*df_trees.config.tree_min_growth_delay,
-			df_trees.config.goblin_cap_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+		if minetest.get_item_group(below_node.name, "soil") > 0 then
+			minetest.get_node_timer(pos):start(math.random(
+				df_trees.config.goblin_cap_delay_multiplier*df_trees.config.tree_min_growth_delay,
+				df_trees.config.goblin_cap_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		end
 	end,
 	
 	on_timer = function(pos)

df_trees/init.lua

@@ -62,5 +62,5 @@ dofile(modpath.."/goblin_cap.lua")
 dofile(modpath.."/tower_cap.lua")
 
 dofile(modpath.."/torchspine.lua")
-
+dofile(modpath.."/spindleshroom.lua")
 

df_trees/spindleshroom.lua

@@ -0,0 +1,246 @@
+-- internationalization boilerplate
+local MP = minetest.get_modpath(minetest.get_current_modname())
+local S, NS = dofile(MP.."/intllib.lua")
+
+-- Copied from subterrane's features.lua
+-- Figured that was nicer than adding a dependency for just this little bit
+local stal_on_place = function(itemstack, placer, pointed_thing)
+	local pt = pointed_thing
+	-- check if pointing at a node
+	if not pt then
+		return itemstack
+	end
+	if pt.type ~= "node" then
+		return itemstack
+	end
+
+	local under = minetest.get_node(pt.under)
+	local above = minetest.get_node(pt.above)
+
+	if minetest.is_protected(pt.above, placer:get_player_name()) then
+		minetest.record_protection_violation(pt.above, placer:get_player_name())
+		return
+	end
+
+	-- return if any of the nodes is not registered
+	if not minetest.registered_nodes[under.name] or not minetest.registered_nodes[above.name] then
+		return itemstack
+	end
+	-- check if you can replace the node above the pointed node
+	if not minetest.registered_nodes[above.name].buildable_to then
+		return itemstack
+	end
+
+	local new_param2
+	-- check if pointing at an existing stalactite
+	if minetest.get_item_group(under.name, "spindleshroom") ~= 0 then
+		new_param2 = under.param2
+	else
+		new_param2 = math.random(0,3)
+	end
+
+	-- add the node and remove 1 item from the itemstack
+	minetest.add_node(pt.above, {name = itemstack:get_name(), param2 = new_param2})
+	if not minetest.setting_getbool("creative_mode") then
+		itemstack:take_item()
+	end
+	return itemstack
+end
+
+local growth_delay = function()
+	return math.random(
+		df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_min_growth_delay,
+		df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_max_growth_delay)
+end
+
+local disp = 0.0625 -- adjusting position a bit
+
+minetest.register_node("df_trees:spindleshroom_stem", {
+	description = S("Spindleshroom Stem"),
+	is_ground_content = true,
+	groups = {wood = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2, spindleshroom = 1},
+	sounds = default.node_sound_wood_defaults(),
+	tiles = {
+		"dfcaverns_tower_cap.png",
+	},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	sunlight_propagates = true,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.0625+disp, -0.5, -0.125+disp, 0.1875+disp, 0.5, 0.25+disp},
+			{-0.125+disp, -0.5, -0.0625+disp, 0.25+disp, 0.5, 0.1875+disp},
+		}
+	},
+	on_place = stal_on_place,
+})
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "df_trees:spindleshroom_stem",
+	burntime = 5,
+})
+
+local cap_def = function(item_name, seedling_item, color_name, color_code, light_level)
+	return {
+		description = S("@1 Spindleshroom Cap", color_name),
+		is_ground_content = true,
+		groups = {wood = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2, spindleshroom = 1},
+		sounds = default.node_sound_wood_defaults(),
+		tiles = {
+			"dfcaverns_tower_cap.png^[multiply:#"..color_code,
+		},
+		light_source = light_level,
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		sunlight_propagates = true,
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.1875+disp, -0.5, -0.3125+disp, 0.3125+disp, -0.3125, 0.4375+disp},
+				{-0.3125+disp, -0.5, -0.1875+disp, 0.4375+disp, -0.3125, 0.3125+disp},
+				{-0.0625+disp, -0.1875, -0.0625+disp, 0.1875+disp, -0.125, 0.1875+disp},
+				{-0.1875+disp, -0.3125, -0.1875+disp, 0.3125+disp, -0.1875, 0.3125+disp},
+			}
+		},
+		
+		drop = {
+            -- Maximum number of items to drop
+            max_items = 1,
+            -- Choose max_items randomly from this list
+            items = {
+                {
+                    items = {item_name, seedling_item},  -- Items to drop
+                    rarity = 2,  -- Probability of dropping is 1 / rarity
+                },
+                {
+                    items = {item_name, seedling_item, seedling_item},  -- Items to drop
+                    rarity = 2,  -- Probability of dropping is 1 / rarity
+                },
+                {
+                    items = {item_name, seedling_item, seedling_item, seedling_item},  -- Items to drop
+                    rarity = 2,  -- Probability of dropping is 1 / rarity
+                },
+                {
+                    items = {item_name},  -- Items to drop
+                    rarity = 1,  -- Probability of dropping is 1 / rarity
+                },
+            },
+        },
+		
+		on_place = stal_on_place,
+		on_timer = function(pos, elapsed)
+			local above = vector.add(pos, {x=0,y=1,z=0})
+			local node_above = minetest.get_node(above)
+			local above_def = minetest.registered_nodes[node_above.name]
+			if not above_def or not above_def.buildable_to then
+				-- can't grow any more, exit
+				return
+			end
+			local meta = minetest.get_meta(pos)
+			local height = meta:get_int("spindleshroom_to_grow")
+			local node = minetest.get_node(pos)
+			minetest.set_node(pos, {name="df_trees:spindleshroom_stem", param2 = node.param2})
+			minetest.set_node(above, {name=item_name, param2 = node.param2})
+			height = height - 1
+			if height > 0 then
+				meta = minetest.get_meta(above)
+				meta:set_int("spindleshroom_to_grow", height)
+				minetest.get_node_timer(above):start(growth_delay())
+			end
+		end,
+	}
+end
+
+local seedling_construct = function(pos)
+	local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+	if minetest.get_item_group(below_node.name, "soil") > 0 then
+		minetest.get_node_timer(pos):start(growth_delay())
+	end
+end
+
+local seedling_def = function(item_name, color_name, color_code)
+	return {
+		description = S("@1 Spindleshroom Spawn", color_name),
+		_doc_items_longdesc = nil,
+		_doc_items_usagehelp = nil,
+		tiles = {
+			"dfcaverns_tower_cap.png^[multiply:#"..color_code,
+		},
+		groups = {snappy = 3, flammable = 2, plant = 1, attached_node = 1, light_sensitive_fungus = 11, digtron_on_place=1},
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		walkable = false,
+		floodable = true,
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.0625 + 0.125, -0.5, -0.125 + 0.125, 0.125 + 0.125, -0.375, 0.0625 + 0.125},
+			}
+		},
+		
+		on_place = stal_on_place,
+		on_construct = seedling_construct,
+		
+		on_timer = function(pos, elapsed)
+			local node = minetest.get_node(pos)
+			minetest.set_node(pos, {name=item_name, param2 = node.param2})
+			local meta = minetest.get_meta(pos)
+			local height = math.random(1,5)-1
+			if height > 0 then
+				meta:set_int("spindleshroom_to_grow", height)
+				minetest.get_node_timer(pos):start(growth_delay())
+			end
+		end,
+	}
+end
+
+local register_spindleshroom_type = function(item_suffix, colour_name, colour_code, light_level)
+	local cap_item = "df_trees:spindleshroom_cap"..item_suffix
+	local seedling_item = "df_trees:spindleshroom_seedling"..item_suffix
+	minetest.register_node(cap_item,
+		cap_def(cap_item, seedling_item, colour_name, colour_code, light_level)
+	)
+	minetest.register_node(seedling_item,
+		seedling_def(cap_item, colour_name, colour_code)
+	)
+
+	minetest.register_craft({
+		type = "fuel",
+		recipe = cap_item,
+		burntime = 10,
+	})
+	minetest.register_craft({
+		type = "fuel",
+		recipe = seedling_item,
+		burntime = 3,
+	})
+	
+	local c_stem = minetest.get_content_id("df_trees:spindleshroom_stem")
+	local c_cap = minetest.get_content_id(cap_item)
+
+	return function(vi, area, data, data_param2)
+		local stem_height = math.random(1,5)-1
+		local param2 = math.random(1,4)-1
+		local i = 0
+		while i < stem_height do
+			index = vi + i * area.ystride
+			data[index] = c_stem
+			data_param2[index] = param2
+			i = i + 1
+		end
+		index = vi + i * area.ystride
+		data[index] = c_cap
+		data_param2[index] = param2	
+	end
+end
+
+df_trees.spawn_spindleshroom_white_vm = register_spindleshroom_type("_white", S("White"), "FFFFFF", 0)
+df_trees.spawn_spindleshroom_cyan_vm = register_spindleshroom_type("_cyan", S("Cyan"), "C3FFFF", 2)
+df_trees.spawn_spindleshroom_red_vm = register_spindleshroom_type("_red", S("Red"), "FFC3C3", 4)
+df_trees.spawn_spindleshroom_green_vm = register_spindleshroom_type("_green", S("Green"), "C3FFC3", 2)
+df_trees.spawn_spindleshroom_red_vm = register_spindleshroom_type("_golden", S("Golden"), "FFFFC3", 12)

df_trees/spore_tree.lua

@@ -167,9 +167,12 @@ minetest.register_node("df_trees:spore_tree_sapling", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_construct = function(pos)
-		minetest.get_node_timer(pos):start(math.random(
-			df_trees.config.spore_tree_delay_multiplier*df_trees.config.tree_min_growth_delay,
-			df_trees.config.spore_tree_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+		if minetest.get_item_group(below_node.name, "soil") > 0 then
+			minetest.get_node_timer(pos):start(math.random(
+				df_trees.config.spore_tree_delay_multiplier*df_trees.config.tree_min_growth_delay,
+				df_trees.config.spore_tree_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		end
 	end,
 	
 	on_timer = function(pos)

df_trees/tower_cap.lua

@@ -136,9 +136,12 @@ minetest.register_node("df_trees:tower_cap_sapling", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_construct = function(pos)
-		minetest.get_node_timer(pos):start(math.random(
-			df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_min_growth_delay,
-			df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+		if minetest.get_item_group(below_node.name, "soil") > 0 then
+			minetest.get_node_timer(pos):start(math.random(
+				df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_min_growth_delay,
+				df_trees.config.tower_cap_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		end
 	end,
 	
 	on_timer = function(pos)

df_trees/tunnel_tube.lua

@@ -295,9 +295,12 @@ minetest.register_node("df_trees:tunnel_tube_sapling", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_construct = function(pos)
-		minetest.get_node_timer(pos):start(math.random(
-			df_trees.config.tunnel_tube_delay_multiplier*df_trees.config.tree_min_growth_delay,
-			df_trees.config.tunnel_tube_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		local below_node = minetest.get_node(vector.add(pos, {x=0,y=-1,z=0}))
+		if minetest.get_item_group(below_node.name, "soil") > 0 then
+			minetest.get_node_timer(pos):start(math.random(
+				df_trees.config.tunnel_tube_delay_multiplier*df_trees.config.tree_min_growth_delay,
+				df_trees.config.tunnel_tube_delay_multiplier*df_trees.config.tree_max_growth_delay))
+		end
 	end,
 	
 	on_timer = function(pos)