Add new groups for cultivation

API.txt

@@ -5,11 +5,16 @@ This document is a WORK IN PROGRESS.
 Currently, it only contains some information about the used groups.
 
 
-Groups
+Groups for interactions
 
 	dig_by_water=1
 		Blocks with this group will drop when they are near flowing water
 
+	cultivatable=2
+		Block will be turned into Farmland by using a hoe on it
+	cultivatable=1
+		Block will be turned into Dirt by using a hoe on it
+
 
 Groups (mostly) used for crafting recipes
 

mods/default/nodes.lua

@@ -257,7 +257,7 @@ minetest.register_node("default:dirt_with_grass", {
 	tiles = {"default_grass.png", "default_dirt.png", "default_dirt.png^default_grass_side.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {crumbly=3, soil=1},
+	groups = {crumbly=3, soil=1, cultivatable=2},
 	drop = 'default:dirt',
 	sounds = default.node_sound_dirt_defaults({
 		footstep = {name="default_grass_footstep", gain=0.4},
@@ -269,19 +269,21 @@ minetest.register_node("default:mycelium", {
 	tiles = {"default_mycelium_top.png", "default_dirt.png", "default_mycelium_side.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {crumbly=3, soil=1},
+	-- TODO: Add mushroom soil group
+	groups = {crumbly=3, cultivatable=2},
 	drop = 'default:dirt',
 	sounds = default.node_sound_dirt_defaults({
 		footstep = {name="default_grass_footstep", gain=0.4},
 	}),
 })
 
+-- TODO: Update for real snowy blocks
 minetest.register_node("default:dirt_with_snow", {
 	description = "Dirt with Snow",
 	tiles = {"default_snow.png", "default_dirt.png", "default_dirt.png^default_snow_side.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {crumbly=3},
+	groups = {crumbly=3, cultivatable=2},
 	drop = 'default:dirt',
 	sounds = default.node_sound_dirt_defaults({
 		footstep = {name="default_grass_footstep", gain=0.4},
@@ -293,7 +295,7 @@ minetest.register_node("default:dirt", {
 	tiles = {"default_dirt.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {crumbly=3, soil=1},
+	groups = {crumbly=3, soil=1, cultivatable=2},
 	sounds = default.node_sound_dirt_defaults(),
 })
 
@@ -302,7 +304,7 @@ minetest.register_node("default:coarse_dirt", {
 	tiles = {"default_coarse_dirt.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {crumbly=3, soil=1},
+	groups = {crumbly=3, soil=1, cultivatable=1},
 	sounds = default.node_sound_dirt_defaults(),
 })
 

mods/farming/hoes.lua

@@ -5,13 +5,13 @@ local function create_soil(pos, inv)
 	local node = minetest.get_node(pos)
 	local name = node.name
 	local above = minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z})
-	if name == "default:dirt" or name == "default:dirt_with_grass" or name == "default:mycelium" then
+	if minetest.get_item_group(name, "cultivatable") == 2 then
 		if above.name == "air" then
 			node.name = "farming:soil"
 			minetest.set_node(pos, node)
 			return true
 		end
-	elseif name == "default:coarse_dirt" then
+	elseif minetest.get_item_group(name, "cultivatable") == 1 then
 		if above.name == "air" then
 			node.name = "default:dirt"
 			minetest.set_node(pos, node)