Add reverse recipes for hoes

- Adds material for crafting (keeps def.recipe compatibility)
- Fix two typos in api documentation

game_api.txt

@@ -125,7 +125,8 @@ farming.register_plant(name, Plant definition)
 	description = "",	-- Description for tooltip
 	inventory_image = "unknown_item.png",	-- Image to be used as wield- and inventory image
 	max_uses = 30,	-- Uses until destroyed
-	recipe = {	-- Craft recipe
+	material = "",	-- Material for recipes
+	recipe = {	-- Craft recipe, if material isn't used
 		{"air", "air", "air"},
 		{"", "group:stick"},
 		{"", "group:stick"},
@@ -138,7 +139,7 @@ farming.register_plant(name, Plant definition)
 	description = "",	-- Description of seed item
 	inventory_image = "unknown_item.png",	-- Image to be used as seed's wield- and inventory image
 	steps = 8,	-- How many steps the plant has to grow, until it can be harvested
-	^ Always provide a plant texture for ech step, format: modname_plantname_i.png (i = stepnumber)
+	^ Always provide a plant texture for each step, format: modname_plantname_i.png (i = stepnumber)
 	minlight = 13, -- Minimum light to grow
 	maxlight = default.LIGHT_MAX -- Maximum light to grow
 }

mods/farming/API.txt

@@ -9,7 +9,8 @@ Hoe Definition
 	description = "",	-- Description for tooltip
 	inventory_image = "unknown_item.png",	-- Image to be used as wield- and inventory image
 	max_uses = 30,	-- Uses until destroyed
-	recipe = {	-- Craft recipe
+	material = "",	-- Material for recipes
+	recipe = {	-- Craft recipe, if material isn't used
 		{"air", "air", "air"},
 		{"", "group:stick"},
 		{"", "group:stick"},
@@ -21,7 +22,7 @@ Plant definition
 	description = "",	-- Description of seed item
 	inventory_image = "unknown_item.png",	-- Image to be used as seed's wield- and inventory image
 	steps = 8,	-- How many steps the plant has to grow, until it can be harvested
-	^ Always provide a plant texture for ech step, format: modname_plantname_i.png (i = stepnumber)
+	^ Always provide a plant texture for each step, format: modname_plantname_i.png (i = stepnumber)
 	minlight = 13, -- Minimum light to grow
 	maxlight = default.LIGHT_MAX -- Maximum light to grow
 }

mods/farming/api.lua

@@ -83,10 +83,30 @@ farming.register_hoe = function(name, def)
 		end
 	})
 	-- Register its recipe
-	minetest.register_craft({
-		output = name:gsub(":", "", 1),
-		recipe = def.recipe
-	})
+	if def.material == nil then
+		minetest.register_craft({
+			output = name:sub(2),
+			recipe = def.recipe
+		})
+	else
+		minetest.register_craft({
+			output = name:sub(2),
+			recipe = {
+				{def.material, def.material, ""},
+				{"", "group:stick", ""},
+				{"", "group:stick", ""}
+			}
+		})
+		-- Reverse Recipe
+		minetest.register_craft({
+			output = name:sub(2),
+			recipe = {
+				{"", def.material, def.material},
+				{"", "group:stick", ""},
+				{"", "group:stick", ""}
+			}
+		})
+	end
 end
 
 -- Seed placement

mods/farming/hoes.lua

@@ -2,64 +2,40 @@ farming.register_hoe(":farming:hoe_wood", {
 	description = "Wooden Hoe",
 	inventory_image = "farming_tool_woodhoe.png",
 	max_uses = 30,
-	recipe = {
-		{"group:wood", "group:wood"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "group:wood"
 })
 
 farming.register_hoe(":farming:hoe_stone", {
 	description = "Stone Hoe",
 	inventory_image = "farming_tool_stonehoe.png",
 	max_uses = 90,
-	recipe = {
-		{"group:stone", "group:stone"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "group:stone"
 })
 
 farming.register_hoe(":farming:hoe_steel", {
 	description = "Steel Hoe",
 	inventory_image = "farming_tool_steelhoe.png",
 	max_uses = 200,
-	recipe = {
-		{"default:steel_ingot", "default:steel_ingot"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "default:steel_ingot"
 })
 
 farming.register_hoe(":farming:hoe_bronze", {
 	description = "Bronze Hoe",
 	inventory_image = "farming_tool_bronzehoe.png",
 	max_uses = 220,
-	recipe = {
-		{"default:bronze_ingot", "default:bronze_ingot"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "default:bronze_ingot"
 })
 
 farming.register_hoe(":farming:hoe_mese", {
 	description = "Mese Hoe",
 	inventory_image = "farming_tool_mesehoe.png",
 	max_uses = 350,
-	recipe = {
-		{"default:mese_crystal", "default:mese_crystal"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "default:mese_crystal"
 })
 
 farming.register_hoe(":farming:hoe_diamond", {
 	description = "Diamond Hoe",
 	inventory_image = "farming_tool_diamondhoe.png",
 	max_uses = 500,
-	recipe = {
-		{"default:diamond", "default:diamond"},
-		{"", "group:stick"},
-		{"", "group:stick"},
-	}
+	material = "default:diamond"
 })