fix mergeconflicts

mods/stairs/init.lua

@@ -20,6 +20,30 @@ minetest.register_alias("moretrees:slab_acacia_planks", "stairs:slab_acacia_wood
 
 local replace = minetest.setting_getbool("enable_stairs_replace_abm")
 
+local function rotate_and_place(itemstack, placer, pointed_thing)
+	local p0 = pointed_thing.under
+	local p1 = pointed_thing.above
+	local param2 = 0
+
+	local placer_pos = placer:getpos()
+	if placer_pos then
+		param2 = minetest.dir_to_facedir(vector.subtract(p1, placer_pos))
+	end
+
+	local finepos = minetest.pointed_thing_to_face_pos(placer, pointed_thing)
+	local fpos = finepos.y % 1
+
+	if p0.y - 1 == p1.y or (fpos > 0 and fpos < 0.5)
+			or (fpos < -0.5 and fpos > -0.999999999) then
+		param2 = param2 + 20
+		if param2 == 21 then
+			param2 = 23
+		elseif param2 == 23 then
+			param2 = 21
+		end
+	end
+	return minetest.item_place(itemstack, placer, pointed_thing, param2)
+end
 
 -- Register stairs.
 -- Node will be called stairs:stair_<subname>
@@ -55,30 +79,7 @@ function stairs.register_stair(subname, recipeitem, groups, images, description,
 				return itemstack
 			end
 
-			local p0 = pointed_thing.under
-			local p1 = pointed_thing.above
-			local param2 = 0
-
-			local placer_pos = placer:getpos()
-			if placer_pos then
-				local dir = {
-					x = p1.x - placer_pos.x,
-					y = p1.y - placer_pos.y,
-					z = p1.z - placer_pos.z
-				}
-				param2 = minetest.dir_to_facedir(dir)
-			end
-
-			if p0.y - 1 == p1.y then
-				param2 = param2 + 20
-				if param2 == 21 then
-					param2 = 23
-				elseif param2 == 23 then
-					param2 = 21
-				end
-			end
-
-			return minetest.item_place(itemstack, placer, pointed_thing, param2)
+			return rotate_and_place(itemstack, placer, pointed_thing)
 		end,
 	})
 
@@ -129,8 +130,6 @@ end
 
 -- Slab facedir to placement 6d matching table
 local slab_trans_dir = {[0] = 8, 0, 2, 1, 3, 4}
--- Slab facedir when placing initial slab against other surface
-local slab_trans_dir_place = {[0] = 0, 20, 12, 16, 4, 8}
 
 -- Register slabs.
 -- Node will be called stairs:slab_<subname>
@@ -153,8 +152,10 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 		on_place = function(itemstack, placer, pointed_thing)
 			local under = minetest.get_node(pointed_thing.under)
 			local wield_item = itemstack:get_name()
+			local creative_enabled = (creative and creative.is_enabled_for
+					and creative.is_enabled_for(placer:get_player_name()))
 
-			if under and wield_item == under.name then
+			if under and under.name:find("stairs:slab_") then
 				-- place slab using under node orientation
 				local dir = minetest.dir_to_facedir(vector.subtract(
 					pointed_thing.above, pointed_thing.under), true)
@@ -162,7 +163,9 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 				local p2 = under.param2
 
 				-- combine two slabs if possible
-				if slab_trans_dir[math.floor(p2 / 4)] == dir then
+				if slab_trans_dir[math.floor(p2 / 4)] == dir
+						and wield_item == under.name then
+
 					if not recipeitem then
 						return itemstack
 					end
@@ -174,7 +177,7 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 						return
 					end
 					minetest.set_node(pointed_thing.under, {name = recipeitem, param2 = p2})
-					if not minetest.setting_getbool("creative_mode") then
+					if not creative_enabled then
 						itemstack:take_item()
 					end
 					return itemstack
@@ -190,21 +193,12 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 
 				-- else attempt to place node with proper param2
 				minetest.item_place_node(ItemStack(wield_item), placer, pointed_thing, p2)
-				if not minetest.setting_getbool("creative_mode") then
+				if not creative_enabled then
 					itemstack:take_item()
 				end
 				return itemstack
 			else
-				-- place slab using look direction of player
-				local dir = minetest.dir_to_wallmounted(vector.subtract(
-					pointed_thing.above, pointed_thing.under), true)
-
-				local rot = slab_trans_dir_place[dir]
-				if rot == 0 or rot == 20 then
-					rot = rot + minetest.dir_to_facedir(placer:get_look_dir())
-				end
-
-				return minetest.item_place(itemstack, placer, pointed_thing, rot)
+				return rotate_and_place(itemstack, placer, pointed_thing)
 			end
 		end,
 	})
@@ -596,3 +590,27 @@ stairs.register_stair_and_slab(
 	"Gold Block Slab",
 	default.node_sound_metal_defaults()
 )
+
+stairs.register_stair_and_slab(
+	"ice",
+	"default:ice",
+	{cracky = 3, puts_out_fire = 1, cools_lava = 1},
+	{"default_ice.png"},
+	"Ice Stair",
+	"Ice Slab",
+	default.node_sound_glass_defaults()
+)
+
+stairs.register_stair_and_slab(
+	"snowblock",
+	"default:snowblock",
+	{crumbly = 3, puts_out_fire = 1, cools_lava = 1, snowy = 1},
+	{"default_snow.png"},
+	"Snow Block Stair",
+	"Snow Block Slab",
+	default.node_sound_dirt_defaults({
+		footstep = {name = "default_snow_footstep", gain = 0.15},
+		dug = {name = "default_snow_footstep", gain = 0.2},
+		dig = {name = "default_snow_footstep", gain = 0.2}
+	})
+)