Add Alias Functions (#54)

* register_alias
* register_alias_force

1 files changed, 95 insertions, 80 deletions

diff --git a/stairsplus/stairs.lua b/stairsplus/stairs.lua
index ee8075f..6609466 100644
--- a/stairsplus/stairs.lua
+++ b/stairsplus/stairs.lua
@@ -20,92 +20,107 @@ function register_stair(modname, subname, recipeitem, groups, images, descriptio
 	})
 end
 
-function stairsplus:register_stair(modname, subname, recipeitem, fields)
-	local defs = {
-		[""] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-					{-0.5, 0, 0, 0.5, 0.5, 0.5},
-				},
+local stairs_defs = {
+	[""] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+				{-0.5, 0, 0, 0.5, 0.5, 0.5},
 			},
 		},
-		["_half"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0, 0, 0.5},
-					{-0.5, 0, 0, 0, 0.5, 0.5},
-				},
+	},
+	["_half"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0, 0, 0.5},
+				{-0.5, 0, 0, 0, 0.5, 0.5},
 			},
 		},
-		["_right_half" ]= {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{0, -0.5, -0.5, 0.5, 0, 0.5},
-					{0, 0, 0, 0.5, 0.5, 0.5},
-				},
+	},
+	["_right_half" ]= {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{0, -0.5, -0.5, 0.5, 0, 0.5},
+				{0, 0, 0, 0.5, 0.5, 0.5},
 			},
 		},
-		["_inner"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-					{-0.5, 0, 0, 0.5, 0.5, 0.5},
-					{-0.5, 0, -0.5, 0, 0.5, 0},
-				},
+	},
+	["_inner"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+				{-0.5, 0, 0, 0.5, 0.5, 0.5},
+				{-0.5, 0, -0.5, 0, 0.5, 0},
 			},
 		},
-		["_outer"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-					{-0.5, 0, 0, 0, 0.5, 0.5},
-				},
+	},
+	["_outer"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+				{-0.5, 0, 0, 0, 0.5, 0.5},
 			},
 		},
-		["_alt"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0.5, 0, 0},
-					{-0.5, 0, 0, 0.5, 0.5, 0.5},
-				},
+	},
+	["_alt"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, 0, 0},
+				{-0.5, 0, 0, 0.5, 0.5, 0.5},
 			},
 		},
-		["_alt_1"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.0625, -0.5, 0.5, 0, 0},
-					{-0.5, 0.4375, 0, 0.5, 0.5, 0.5},
-				},
+	},
+	["_alt_1"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.0625, -0.5, 0.5, 0, 0},
+				{-0.5, 0.4375, 0, 0.5, 0.5, 0.5},
 			},
 		},
-		["_alt_2"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.125, -0.5, 0.5, 0, 0},
-					{-0.5, 0.375, 0, 0.5, 0.5, 0.5},
-				},
+	},
+	["_alt_2"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.125, -0.5, 0.5, 0, 0},
+				{-0.5, 0.375, 0, 0.5, 0.5, 0.5},
 			},
 		},
-		["_alt_4"] = {
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.25, -0.5, 0.5, 0, 0},
-					{-0.5, 0.25, 0, 0.5, 0.5, 0.5},
-				},
+	},
+	["_alt_4"] = {
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.25, -0.5, 0.5, 0, 0},
+				{-0.5, 0.25, 0, 0.5, 0.5, 0.5},
 			},
 		},
-	}
+	},
+}
+
+function stairsplus:register_stair_alias(modname_old, subname_old, modname_new, subname_new)
+	local defs = stairsplus.copytable(stairs_defs)
+	for alternate, def in pairs(defs) do
+		minetest.register_alias(modname_old .. ":stair_" .. subname_old .. alternate, modname_new .. ":stair_" .. subname_new .. alternate)
+	end
+end
+
+function stairsplus:register_stair_alias_force(modname_old, subname_old, modname_new, subname_new)
+	local defs = stairsplus.copytable(stairs_defs)
+	for alternate, def in pairs(defs) do
+		minetest.register_alias_force(modname_old .. ":stair_" .. subname_old .. alternate, modname_new .. ":stair_" .. subname_new .. alternate)
+	end
+end
 
+function stairsplus:register_stair(modname, subname, recipeitem, fields)
+	local defs = stairsplus.copytable(stairs_defs)
 	local desc = S("%s Stairs"):format(fields.description)
 	for alternate, def in pairs(defs) do
 		for k, v in pairs(fields) do
@@ -127,7 +142,7 @@ function stairsplus:register_stair(modname, subname, recipeitem, fields)
 	circular_saw.known_nodes[recipeitem] = {modname, subname}
 
 	-- Some saw-less recipes:
-	
+
 	minetest.register_craft({
 		output = modname .. ":stair_" .. subname .. " 8",
 		recipe = {
@@ -145,67 +160,67 @@ function stairsplus:register_stair(modname, subname, recipeitem, fields)
 			{recipeitem, recipeitem, recipeitem},
 		},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname,
 		recipe = {modname .. ":panel_" .. subname, modname .. ":slab_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname,
 		recipe = {modname .. ":panel_" .. subname, modname .. ":panel_" .. subname, modname .. ":panel_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_outer",
 		recipe = {modname .. ":micro_" .. subname, modname .. ":slab_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_half",
 		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_half",
 		recipe = {modname .. ":panel_" .. subname, modname .. ":micro_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_right_half",
 		recipe = {modname .. ":stair_" .. subname .. "_half"},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname,
 		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_inner",
 		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname .. "_outer",
 		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
 	})
-	
+
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":stair_" .. subname,
 		recipe = {modname .. ":panel_" .. subname, modname .. ":panel_" .. subname, modname .. ":panel_" .. subname},
 	})
-	
+
 	minetest.register_craft({ -- See mirrored variation of the recipe below.
 		output = modname .. ":stair_" .. subname .. "_alt",
 		recipe = {
@@ -213,7 +228,7 @@ function stairsplus:register_stair(modname, subname, recipeitem, fields)
 			{""                            , modname .. ":panel_" .. subname},
 		},
 	})
-	
+
 	minetest.register_craft({ -- Mirrored variation of the recipe above.
 		output = modname .. ":stair_" .. subname .. "_alt",
 		recipe = {