Add slightly reduced and rewritten version of mushroom mod by Dan

Duncombe and I, with tweaks added to make mushrooms able to spawn on
woodsoils grass/dirt with leaves.

Rewrites are just to make the ABMs a little lighter-weight, but they should
still function the same as before.

This mod does not hook into the map generator.

mushroom/compat.lua

@@ -0,0 +1,41 @@
+
+-- Redefine grass and dirt nodes
+
+minetest.override_item("default:dirt", {
+	drop = {
+		max_items = 2,
+		items = {
+			{
+				items = {"mushroom:spore1"},
+				rarity = 40,
+			},
+			{
+				items = {"mushroom:spore2"},
+				rarity = 40,
+			},
+			{
+				items = {"default:dirt"},
+			}
+		}
+	}
+})
+
+minetest.override_item("default:dirt_with_grass", {
+	drop = {
+		max_items = 2,
+		items = {
+			{
+				items = {"mushroom:spore1"},
+				rarity = 40,
+			},
+			{
+				items = {"mushroom:spore2"},
+				rarity = 40,
+			},
+			{
+				items = {"default:dirt"},
+			}
+		}
+	}
+})
+

mushroom/crafting.lua

@@ -0,0 +1,91 @@
+-- craft items
+
+minetest.register_craftitem("mushroom:spore1",{
+	description = "Unidentified Mushroom Spore",
+	inventory_image = "mushroom_spore.png",
+	wield_image = "mushroom_spore.png",
+})
+
+minetest.register_craftitem("mushroom:spore2",{
+	description = "Unidentified Mushroom Spore",
+	inventory_image = "mushroom_spore.png",
+	wield_image = "mushroom_spore.png",
+})
+
+minetest.register_craftitem("mushroom:identifier",{
+	description = "Mushroom Spore Identifier/Spore Extractor",
+	inventory_image = "mushroom_identifier.png",
+	wield_image = "mushroom_identifier.png",
+})
+
+minetest.register_craftitem("mushroom:brown_essence",{
+	description = "Healthy Brown Mushroom Essence",
+	inventory_image = "mushroom_essence.png",
+	wield_image = "mushroom_essence.png",
+	on_use = minetest.item_eat(10),
+})
+
+minetest.register_craftitem("mushroom:poison",{
+	description = "Red Mushroom Poison",
+	inventory_image = "mushroom_poison.png",
+	wield_image = "mushroom_poison.png",
+	on_use = minetest.item_eat(-10),
+})
+
+-- recipes
+
+minetest.register_craft( {
+		output = "mushroom:identifier",
+		recipe = { 
+			{ "", "default:torch", "" },
+			{ "default:steel_ingot", "default:mese_crystal_fragment", "default:steel_ingot" },
+		}
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:brown_essence",
+         recipe = { "mushroom:brown" , "vessels:glass_bottle" },
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:poison",
+         recipe = { "mushroom:red" , "vessels:glass_bottle" },
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:spore_brown",
+         recipe = { "mushroom:identifier" , "mushroom:spore1" },
+         replacements = {
+             { 'mushroom:identifier', 'mushroom:identifier' }
+         }
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:spore_red",
+         recipe = { "mushroom:identifier" , "mushroom:spore2" },
+         replacements = {
+             { 'mushroom:identifier', 'mushroom:identifier' }
+         }
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:spore_red 2",
+         recipe = { "mushroom:identifier" , "mushroom:red" },
+         replacements = {
+             { 'mushroom:identifier', 'mushroom:identifier' }
+         }
+})
+
+minetest.register_craft( {
+         type = "shapeless",
+         output = "mushroom:spore_brown 2",
+         recipe = { "mushroom:identifier" , "mushroom:brown" },
+         replacements = {
+             { 'mushroom:identifier', 'mushroom:identifier' }
+         }
+})

mushroom/depends.txt

@@ -0,0 +1,3 @@
+default
+vessels?
+woodsoils?

mushroom/init.lua

@@ -0,0 +1,262 @@
+
+-- Mushroom mod by DanDuncombe and VanessaE
+--
+-- License:  CC-By-SA for texures derived from Minetest defaults,
+--           WTFPL for all code and everything else.
+
+mushroom = {}
+
+minetest.register_node("mushroom:brown",{
+	description = "Brown Mushroom",
+	drawtype = "plantlike",
+	sunlight_propagates = true,
+	tiles = {"mushroom_brown.png"},
+	inventory_image = "mushroom_brown.png",
+	wield_image = "mushroom_brown.png",
+	groups = {oddly_breakable_by_hand=3,attached_node=1},
+	paramtype = "light",
+	walkable = false,
+	on_use = minetest.item_eat(5),
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+	},
+	drop = "mushroom:brown",
+})
+
+minetest.register_node("mushroom:red",{
+	description = "Red Mushroom",
+	drawtype = "plantlike",
+	sunlight_propagates = true,
+	tiles = {"mushroom_red.png"},
+	inventory_image = "mushroom_red.png",
+	wield_image = "mushroom_red.png",
+	groups = {oddly_breakable_by_hand=3,attached_node=1},
+	paramtype = "light",
+	walkable = false,
+	on_use = minetest.item_eat(-5),
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+	},
+    drop = "mushroom:red",
+})
+
+minetest.register_node("mushroom:spore_brown",{
+	description = "Brown Mushroom Spore",
+	drawtype = "raillike",
+	paramtype = "light",
+	tiles = {"mushroom_spore_brown.png"},
+	sunlight_propagates = true,
+	walkable = false,
+	groups = {oddly_breakable_by_hand=3,attached_node=1},
+	inventory_image = "mushroom_spore_brown.png",
+	wield_image = "mushroom_spore_brown.png",
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, -0.4, 0.5}
+	},
+})
+
+minetest.register_node("mushroom:spore_red",{
+	description = "Red Mushroom Spore",
+	drawtype = "raillike",
+	paramtype = "light",
+	tiles = {"mushroom_spore_red.png"},
+	sunlight_propagates = true,
+	walkable = false,
+	groups = {oddly_breakable_by_hand=3,attached_node=1},
+	inventory_image = "mushroom_spore_red.png",
+	wield_image = "mushroom_spore_red.png",
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, -0.4, 0.5}
+	},
+})
+
+--Natural Mushrooms
+
+minetest.register_node("mushroom:brown_natural",{
+	description = "Brown Mushroom (Naturally Spawned)",
+	drawtype = "plantlike",
+	sunlight_propagates = true,
+	tiles = {"mushroom_brown.png"},
+	inventory_image = "mushroom_brown.png",
+	wield_image = "mushroom_brown.png",
+	groups = {oddly_breakable_by_hand=3},
+	paramtype = "light",
+	walkable = false,
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+	},
+	drop = "mushroom:brown",
+})
+
+minetest.register_node("mushroom:red_natural",{
+	description = "Red Mushroom (Naturally Spawned)",
+	drawtype = "plantlike",
+	sunlight_propagates = true,
+	tiles = {"mushroom_red.png"},
+	inventory_image = "mushroom_red.png",
+	wield_image = "mushroom_red.png",
+	groups = {oddly_breakable_by_hand=3},
+	paramtype = "light",
+	walkable = false,
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+	},
+    drop = "mushroom:red",
+})
+
+-- Spore Growing ABMs
+
+minetest.register_abm({
+	nodenames = {"mushroom:spore_brown"},
+	neighbors = {"air"},
+	interval = 120,
+	chance = 4,
+	action = function(pos, node)
+		local soil = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
+		if (soil.name == "farming:soil_wet" or string.find(soil.name, "homedecor:flower_pot_"))
+			and minetest.get_node_light(pos, nil) < 8 then
+	 			minetest.add_node({x=pos.x,y=pos.y,z=pos.z}, {name="mushroom:brown"})
+		end
+	end
+})
+
+minetest.register_abm({
+	nodenames = {"mushroom:spore_red"},
+	neighbors = {"air"},
+	interval = 120,
+	chance = 4,
+	action = function(pos, node)
+		local soil = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
+		if (soil.name == "farming:soil_wet" or string.find(soil.name, "homedecor:flower_pot_"))
+			and minetest.get_node_light(pos, nil) < 8 then
+	 			minetest.add_node({x=pos.x,y=pos.y,z=pos.z}, {name="mushroom:red"})
+		end
+	end
+})
+
+-- list of trees that mushrooms can grow next to
+
+local trees_list = {
+	"default:tree",
+	"default:jungletree",
+	"moretrees:apple_tree_trunk",
+	"moretrees:beech_trunk",
+	"moretrees:birch_trunk",
+	"moretrees:fir_trunk",
+	"moretrees:oak_trunk",
+	"moretrees:pine_trunk",
+	"moretrees:rubber_tree_trunk",
+	"moretrees:rubber_tree_trunk_empty",
+	"moretrees:sequoia_trunk",
+	"moretrees:spruce_trunk",
+	"moretrees:willow_trunk",
+}
+
+-- Natural Spawning ABM
+
+minetest.register_abm({
+	nodenames = {
+		"default:dirt_with_grass",
+		"default:dirt",
+		"woodsoils:dirt_with_leaves_1",
+		"woodsoils:dirt_with_leaves_2",
+		"woodsoils:grass_with_leaves_1",
+		"woodsoils:grass_with_leaves_2",
+		"farming:soil_wet"
+	},
+	neighbors = {"air"},
+	interval = 300,
+	chance = 100,
+	action = function(pos, node)
+		local top_pos = {x=pos.x, y=pos.y+1, z=pos.z}
+		if minetest.get_node(top_pos).name == "air" and minetest.get_node_light(top_pos, nil) < 8 
+			and minetest.find_node_near(pos, 1, trees_list)
+			and minetest.find_node_near(pos, 3, "default:water_source") then
+			if math.random(0, 1) == 0 then
+				minetest.add_node(top_pos, {name="mushroom:brown_natural"})
+			else
+				minetest.add_node(top_pos, {name="mushroom:red_natural"})
+			end
+		end
+	end
+})
+
+minetest.register_abm({
+	nodenames = {"default:stone"},
+	neighbors = {"air"},
+	interval = 300,
+	chance = 100,
+	action = function(pos, node)
+		local top_pos = {x=pos.x, y=pos.y+1, z=pos.z}
+		if minetest.get_node(top_pos).name == "air" and minetest.get_node_light(top_pos, nil) < 8 
+			and minetest.find_node_near(pos, 1, {"default:water_source"}) then
+			if math.random(0,1) == 0 then
+				minetest.add_node(top_pos, {name="mushroom:brown_natural"})
+			else
+				minetest.add_node(top_pos, {name="mushroom:red_natural"})
+			end
+		end
+	end
+})
+
+-- Spreading ABM
+
+minetest.register_abm({
+	nodenames = {
+		"mushroom:brown_natural",
+		"mushroom:red_natural"
+	},
+	neighbors = {"air"},
+	interval = 120,
+	chance = 100,
+	action = function(pos, node)
+		local soil_pos = {x=pos.x, y=pos.y-1, z=pos.z}
+		local soil = minetest.get_node(soil_pos)
+		local woodsoil_str = "woodsoils:.+_with_leaves_?"
+		if minetest.get_node_light(pos, nil) < 8 
+		  and minetest.find_node_near(pos, 1, trees_list) then
+			local spread_x = math.random(-1, 1)
+			local spread_z = math.random(-1, 1)
+			local newpos = {x=pos.x+spread_x, y=pos.y, z=pos.z+spread_z}
+			local newsoil = minetest.get_node({x=newpos.x, y=newpos.y-1, z=newpos.z})
+			if minetest.get_node(newpos).name == "air"
+			  and (newsoil.name == "default:dirt_with_grass"
+			    or newsoil.name == "default:dirt"
+			    or string.match(newsoil.name, woodsoil_str)) 
+			  and minetest.find_node_near(newpos, 3, "default:water_source") then
+				minetest.add_node(newpos, {name=node.name})
+			end		
+		end
+	end
+})
+
+-- Dying ABM
+
+minetest.register_abm({
+	nodenames = {
+		"mushroom:brown",
+		"mushroom:red",
+	},
+	neighbors = {"air"},
+	interval = 120,
+	chance = 50,
+	action = function(pos, node)
+		local soil = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z})
+		if soil.name ~= "farming:soil_wet"
+		  and not string.find(soil.name, "homedecor:flower_pot_") then
+				minetest.remove_node(pos)
+		end
+	end
+})
+
+dofile(minetest.get_modpath("mushroom").."/crafting.lua")
+dofile(minetest.get_modpath("mushroom").."/compat.lua")
+
+print("[Mushrooms] loaded.")
+