sorcery  Diff

			if i <= 2 then minetest.remove_node(pos) else
				minetest.set_node(pos, {name='sorcery:air_flash_1'})
				return true
			end
		end
	});
end





































































minetest.register_on_dignode(function(pos, node, puncher)
	if puncher == nil then return end -- i don't know why
	-- this is necessary but you get rare crashes without it






	-- we're goint to do something VERY evil here and
	-- replace the air with a "glow-air" that removes
	-- itself after a short period of time, to create
	-- a flash of light when an enchanted tool's used
	-- to dig out a node
	local tool = puncher:get_wielded_item()
................................................................................
		if ch > sp.reliability then goto skip end
		sparks[#sparks + 1] = {
			color = sorcery.lib.color(data.tone):brighten(1.1);
			count = strength * 7;
		}
	::skip::end end
	if totalcost > 0 then
		local conservation = sorcery.enchant.strength(tool,'conserve') * 0.5
		totalcost = totalcost - (totalcost * conservation)

		ench.energy = math.max(0,ench.energy - (totalcost - (material.data.energysource or 0)))

	end
	if #sparks == 0 then return end
	if math.random(5) == 1 then
		minetest.set_node(pos, {name='sorcery:air_flash_' .. tostring(math.random(10))})
	end
	local range = function(min, max)
		local span = max - min
................................................................................
		ench.spells = {}
		sorcery.enchant.set(tool,ench)
	else
		sorcery.enchant.set(tool,ench,true)
	end
	puncher:set_wielded_item(tool)

	-- perform leyline checks and call notify if necessary
	if minetest.get_item_group(node.name, 'sorcery_ley_device') ~= 0 then
		sorcery.lib.node.notifyneighbors(pos)
	end
end)

minetest.register_chatcommand('enchants', {
	description = 'Log information about the currently held object\'s enchantment';
	privs = { server = true };
	func = function(caller,params)
		local tool = minetest.get_player_by_name(caller):get_wielded_item()
		minetest.chat_send_player(caller, dump(sorcery.enchant.get(tool)))
		local binary = tool:get_meta():get_string('sorcery_enchantment_recs')
		local dumpout = ''
		for i=1,string.len(binary) do
			dumpout = dumpout .. string.format('%x%s',string.byte(binary,i),(i%16==0 and '\n') or ' ') 
		end
		print(dumpout)
	end;
})

			if i <= 2 then minetest.remove_node(pos) else
				minetest.set_node(pos, {name='sorcery:air_flash_1'})
				return true
			end
		end
	});
end

local function enchpwrhud(user, flash, fac)
	-- this function displays or changes the HUD element
	-- that shows how much energy is left in an enchanted
	-- item. it is called by the dig handler and sequences
	-- callbacks to remove the HUD from the screen once
	-- its timeleft property has been used up. timeleft is
	-- reset if the 'flash' argument, which indicates
	-- whether the enchantment has just been used, is set
	-- to true; otherwise, it is left alone.
	--
	-- this whole thing is really unfriendly and without
	-- FP tricks it would have been intolerably painful
	-- to implement. minetest needs better primitives.
	local frame = math.ceil(16 * (1-math.min(1,fac)))
	if tostring(frame) == '-0' then frame = '0' -- ??????
		else frame = tostring(frame) end  
	local tex = 'sorcery_ui_manaring_' .. (flash and 'flash_' or '') .. frame .. '.png';
	local c = sorcery.ctx.get(user)
	if not c.hud_ench then
		local hid = user:hud_add {
			name = 'sorcery:manaring';
			hud_elem_type = 'image';
			text = tex;
			position = { x = 0.5, y = 0.5 };
			offset   = { x = 0,   y = 0  };
			scale    = { x = 2.0, y = 2.0 };
			z_index  = 0;
		}
		c.hud_ench = {
			id = hid;
			timeleft = 2.0;
			fn = false;
			fac = fac;
		}
		c = c.hud_ench
	else
		c = c.hud_ench
		c.fac = fac
		user:hud_change(c.id,'text',tex)
		if flash then c.timeleft = 2.0 end
	end
	if c.fn == false then
		c.fn = true
		local delta = 0.10
		-- tried making Δ conditional on 'flash' but it
		-- turns out that causes the flash not to always
		-- disappear in a timely manner. solving this
		-- efficiently would be a major, complex headache
		-- so i'm just compromising and setting delta to a
		-- constant :/
		minetest.after(delta, function()
			if not sorcery.ctx.stat(user) then return end
			local u = sorcery.ctx.get(user)
			local h = u.hud_ench
			if not h then return end
			print('timeleft,delta',h.timeleft,delta)
			if h.timeleft - delta <= 0 then
				user:hud_remove(h.id)
				u.hud_ench = nil
			else
				h.timeleft = h.timeleft - delta
				h.fn = false
				enchpwrhud(user, false, h.fac)
			end
		end)
	end
end

minetest.register_on_dignode(function(pos, node, puncher)
	if puncher == nil then return end -- i don't know why
	-- this is necessary but you get rare crashes without it

	-- perform leyline checks and call notify if necessary
	if minetest.get_item_group(node.name, 'sorcery_ley_device') ~= 0 then
		sorcery.lib.node.notifyneighbors(pos)
	end

	-- we're goint to do something VERY evil here and
	-- replace the air with a "glow-air" that removes
	-- itself after a short period of time, to create
	-- a flash of light when an enchanted tool's used
	-- to dig out a node
	local tool = puncher:get_wielded_item()
................................................................................
		if ch > sp.reliability then goto skip end
		sparks[#sparks + 1] = {
			color = sorcery.lib.color(data.tone):brighten(1.1);
			count = strength * 7;
		}
	::skip::end end
	if totalcost > 0 then
		local conservation = math.floor(sorcery.enchant.strength(tool,'conserve') * 6)
		-- totalcost = totalcost - (totalcost * conservation)
		if conservation == 0 or math.random(conservation) == 1 then
			ench.energy = math.max(0,ench.energy - (totalcost - (material.data.energysource or 0)))
		end
	end
	if #sparks == 0 then return end
	if math.random(5) == 1 then
		minetest.set_node(pos, {name='sorcery:air_flash_' .. tostring(math.random(10))})
	end
	local range = function(min, max)
		local span = max - min
................................................................................
		ench.spells = {}
		sorcery.enchant.set(tool,ench)
	else
		sorcery.enchant.set(tool,ench,true)
	end
	puncher:set_wielded_item(tool)

	local epct = ench.energy / material.data.maxenergy
	enchpwrhud(puncher, true, epct)

end)