sorcery  Check-in [9599e69051]

		 0.4,  0.5,  0.5;
	};
}

local function
findextract(herb)
	for name, e in pairs(sorcery.data.extracts) do
		if e[1] == herb then

			return name, {
				color = e[2];
				reqamt = e[3] or 3;
				reqtime = e[4] or 75;
			}
		end
	end

		 0.4,  0.5,  0.5;
	};
}

local function
findextract(herb)
	for name, e in pairs(sorcery.data.extracts) do
		local found = false
		if sorcery.lib.item.groupmatch(e[1], herb) then
			return name, {
				color = e[2];
				reqamt = e[3] or 3;
				reqtime = e[4] or 75;
			}
		end
	end

			end
		else
			local is = ItemStack(identity)
			identity,count = is:get_name(), is:get_count()
		end
	end

	local stack = ItemStack(item)
	if sorcery.lib.str.beginswith(identity, 'group:') then

		local groups = sorcery.lib.str.explode(string.sub(identity,7), ',')
		for _,g in pairs(groups) do
			local rn,rv = sorcery.lib.tbl.split(g,'=')
			local gv = minetest.get_item_group(stack:get_name(), rn)
			if rv then
				if gv ~= tonumber(rv) then return false, stack end
			else

			end
		else
			local is = ItemStack(identity)
			identity,count = is:get_name(), is:get_count()
		end
	end


	if sorcery.lib.str.beginswith(identity, 'group:') then
		local stack = ItemStack(item)
		local groups = sorcery.lib.str.explode(string.sub(identity,7), ',')
		for _,g in pairs(groups) do
			local rn,rv = sorcery.lib.tbl.split(g,'=')
			local gv = minetest.get_item_group(stack:get_name(), rn)
			if rv then
				if gv ~= tonumber(rv) then return false, stack end
			else

		return true
	end;

	tree_is_live = function(pos, checklight) -- VERY EXPENSIVE FUNCTION
		-- this is going to require some explanation.
		--
		-- for various purposes, we want to be able to tell the difference between
		-- a tree that has grown naturally from the grown vs. a couple of trunk nodes
		-- that the player has jammed together, even if she's built her own counterfeit
		-- tree. unfortunately, mtg provides no easy way to do this. the only 
		-- difference between a cluster of trunk blocks and a real tree is that the
		-- real tree will have a specific kind of leaves attached with their param2
		-- set to 1 so that they can be distinguished for the purpose of leaf cleaning.
		-- so to check a tree's state, we need to amass its whole potential body, and if
		-- there are legitimate leaves connected, then we identify it as a legit tree.
................................................................................
		for _,p in pairs(n) do
			local sum = vector.add(pos, p)
			local n = minetest.get_node(sum)
			if n.name == 'ignore' then
				minetest.load_area(sum)
				n = minetest.get_node(sum)
			end
			fn(sum, n)
		end
	end;

	amass = amass;
	
	force = force;

		return true
	end;

	tree_is_live = function(pos, checklight) -- VERY EXPENSIVE FUNCTION
		-- this is going to require some explanation.
		--
		-- for various purposes, we want to be able to tell the difference between
		-- a tree that has grown naturally from the ground vs. a couple of trunk nodes
		-- that the player has jammed together, even if she's built her own counterfeit
		-- tree. unfortunately, mtg provides no easy way to do this. the only 
		-- difference between a cluster of trunk blocks and a real tree is that the
		-- real tree will have a specific kind of leaves attached with their param2
		-- set to 1 so that they can be distinguished for the purpose of leaf cleaning.
		-- so to check a tree's state, we need to amass its whole potential body, and if
		-- there are legitimate leaves connected, then we identify it as a legit tree.
................................................................................
		for _,p in pairs(n) do
			local sum = vector.add(pos, p)
			local n = minetest.get_node(sum)
			if n.name == 'ignore' then
				minetest.load_area(sum)
				n = minetest.get_node(sum)
			end
			if fn(sum, n) == false then break end
		end
	end;

	amass = amass;
	
	force = force;