added spell and node

Added the alohomora spell, that is used to open a special door. This
door can only be used with this spell.

harrytest/init.lua

@@ -4,11 +4,18 @@
 --Licence: WTFPL 
 --]
 
+--------------------------------------------------------------------------------
+
+local WALLMX = 3
+local WALLMZ = 5
+local WALLPX = 2
+local WALLPZ = 4
+
+--------------------------------------------------------------------------------
+
 -- Items
 
-
 ----1. Wand
-
 minetest.register_tool("harrytest:wand", {
 	description = "Magic Wand",
 	inventory_image = "wand.png",
@@ -21,4 +28,194 @@ minetest.register_tool("harrytest:wand", {
 			choppy={times={[3]=0.70}, uses=40, maxlevel=0}
 		}
 	}
-})
+})
+
+----2. Magic mdoor
+minetest.register_alias('mdoor', 'harrytest:mdoor_wood')
+minetest.register_alias('mdoor_wood', 'harrytest:mdoor_wood')
+
+minetest.register_node( 'harrytest:mdoor_wood', {
+	description         = 'Magic door',
+	drawtype            = 'signlike',
+	tiles         		= { 'mdoor_wood.png' },
+	inventory_image     = 'mdoor_wood.png',
+	wield_image         = 'mdoor_wood.png',
+	paramtype2          = 'wallmounted',
+	selection_box       = { type = 'wallmounted' },
+	groups              = { choppy=2, dig_immediate=2 },
+})
+
+minetest.register_craft({
+	type = 'fuel',
+	recipe = 'harrytest:mdoor_wood',
+	burntime = 30,
+})
+
+minetest.register_node( 'harrytest:mdoor_wood_a_c', {
+	Description         = 'Top Closed Magic door',
+	drawtype            = 'signlike',
+	tiles         		= { 'mdoor_wood_a.png' },
+	inventory_image     = 'mdoor_wood_a.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = true,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'harrytest:mdoor_wood',
+})
+
+minetest.register_node( 'harrytest:mdoor_wood_b_c', {
+	Description         = 'Bottom Closed Magic door',
+	drawtype            = 'signlike',
+	tiles         		= { 'mdoor_wood_b.png' },
+	inventory_image     = 'mdoor_wood_b.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = true,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'harrytest:mdoor_wood',
+})
+
+minetest.register_node( 'harrytest:mdoor_wood_a_o', {
+	Description         = 'Top Open Magic door',
+	drawtype            = 'signlike',
+	tiles         		= { 'mdoor_wood_a_r.png' },
+	inventory_image     = 'mdoor_wood_a_r.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = false,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'harrytest:mdoor_wood',
+})
+
+minetest.register_node( 'harrytest:mdoor_wood_b_o', {
+	Description         = 'Bottom Open Magic door',
+	drawtype            = 'signlike',
+	tiles         		= { 'mdoor_wood_b_r.png' },
+	inventory_image     = 'mdoor_wood_b_r.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = false,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'harrytest:mdoor_wood',
+})
+
+--------------------------------------------------------------------------------
+
+local round = function( n )
+	if n >= 0 then
+		return math.floor( n + 0.5 )
+	else
+		return math.ceil( n - 0.5 )
+	end
+end
+
+local on_mdoor_placed = function( pos, node, placer )
+	if node.name ~= 'harrytest:mdoor_wood' then return end
+
+	local upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	local apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+	local und = minetest.env:get_node( upos )
+	local abv = minetest.env:get_node( apos )
+
+	local dir = placer:get_look_dir()
+
+	if     round( dir.x ) == 1  then
+		newparam = WALLMX
+	elseif round( dir.x ) == -1 then
+		newparam = WALLPX
+	elseif round( dir.z ) == 1  then
+		newparam = WALLMZ
+	elseif round( dir.z ) == -1 then
+		newparam = WALLPZ
+	end
+
+	if und.name == 'air' then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_a_c', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'harrytest:mdoor_wood_b_c', param2 = newparam } )
+	elseif abv.name == 'air' then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_b_c', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'harrytest:mdoor_wood_a_c', param2 = newparam } )
+	else
+		minetest.env:remove_node( pos )
+		placer:get_inventory():add_item( "main", 'harrytest:mdoor_wood' )
+		minetest.chat_send_player( placer:get_player_name(), 'not enough space' )
+	end
+end
+
+local on_mdoor_punched = function( pos, node, puncher )
+local tool = puncher:get_wielded_item():get_name()
+		if tool and tool == "htspells:alohomora" then
+	 if string.find( node.name, 'harrytest:mdoor_wood' ) == nil then return end
+
+	local upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	local apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+
+	if string.find( node.name, '_c', -2 ) ~= nil then
+		if     node.param2 == WALLPX then
+			newparam = WALLMZ
+		elseif node.param2 == WALLMZ then
+			newparam = WALLMX
+		elseif node.param2 == WALLMX then
+			newparam = WALLPZ
+		elseif node.param2 == WALLPZ then
+			newparam = WALLPX
+		end
+	elseif string.find( node.name, '_o', -2 ) ~= nil then
+		if     node.param2 == WALLMZ then
+			newparam = WALLPX
+		elseif node.param2 == WALLMX then
+			newparam = WALLMZ
+		elseif node.param2 == WALLPZ then
+			newparam = WALLMX
+		elseif node.param2 == WALLPX then
+			newparam = WALLPZ
+		end
+	end
+	
+
+	if ( node.name == 'harrytest:mdoor_wood_a_c' ) then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_a_o', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'harrytest:mdoor_wood_b_o', param2 = newparam } )
+
+	elseif ( node.name == 'harrytest:mdoor_wood_b_c' ) then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_b_o', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'harrytest:mdoor_wood_a_o', param2 = newparam } )
+
+	elseif ( node.name == 'harrytest:mdoor_wood_a_o' ) then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_a_c', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'harrytest:mdoor_wood_b_c', param2 = newparam } )
+
+	elseif ( node.name == 'harrytest:mdoor_wood_b_o' ) then
+		minetest.env:add_node( pos,  { name = 'harrytest:mdoor_wood_b_c', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'harrytest:mdoor_wood_a_c', param2 = newparam } )
+
+	end
+end
+end
+
+local on_mdoor_digged = function( pos, node, digger )
+	local upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	local apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+
+	if ( node.name == 'harrytest:mdoor_wood_a_c' ) or ( node.name == 'harrytest:mdoor_wood_a_o' ) then
+		minetest.env:remove_node( upos )
+	elseif ( node.name == 'harrytest:mdoor_wood_b_c' ) or ( node.name == 'harrytest:mdoor_wood_b_o' ) then
+		minetest.env:remove_node( apos )
+	end
+end
+
+--------------------------------------------------------------------------------
+
+minetest.register_on_placenode( on_mdoor_placed )
+minetest.register_on_punchnode( on_mdoor_punched )
+minetest.register_on_dignode( on_mdoor_digged )
+
+--------------------------------------------------------------------------------

htspells/init.lua

@@ -48,7 +48,22 @@ minetest.register_tool("htspells:incendio", {
 	end
 })
 
-----3. Bombarda -  Provokes a small explosion.
+----3. Alohomora - Unlocks doors
+minetest.register_tool("htspells:alohomora", {
+	description = "Alohomora Spell",
+	inventory_image = "key.png",
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=1,
+		groupcaps={
+			fleshy={times={[1]=2.00, [2]=0.80, [3]=0.40}, uses=10, maxlevel=2},
+			snappy={times={[2]=0.70, [3]=0.30}, uses=40, maxlevel=1},
+			choppy={times={[3]=0.70}, uses=40, maxlevel=0}
+		}
+	}
+})
+
+----4. Bombarda - Provokes a small explosion.
 
 minetest.register_tool("htspells:bombarda", {
 	description = "Bombarda Spell",