Diggers now provide a dig talent and can be used while carrier instead of wielded

game/modules/tome/class/Actor.lua

@@ -3010,6 +3010,13 @@ function _M:onAddObject(o)
 
 	engine.interface.ActorInventory.onAddObject(self, o)
 
+	-- Learn Talent
+	if o.carrier and o.carrier.learn_talent then
+		for tid, level in pairs(o.carrier.learn_talent) do
+			self:learnItemTalent(o, tid, level)
+		end
+	end
+
 	self:checkEncumbrance()
 
 	-- Achievement checks
@@ -3025,6 +3032,12 @@ end
 function _M:onRemoveObject(o)
 	engine.interface.ActorInventory.onRemoveObject(self, o)
 
+	if o.carrier and o.carrier.learn_talent then
+		for tid, level in pairs(o.carrier.learn_talent) do
+			self:unlearnItemTalent(o, tid, level)
+		end
+	end
+
 	self:checkEncumbrance()
 end
 

game/modules/tome/data/general/objects/digger.lua

@@ -17,6 +17,9 @@
 -- Nicolas Casalini "DarkGod"
 -- darkgod@te4.org
 
+local Stats = require "engine.interface.ActorStats"
+local Talents = require "engine.interface.ActorTalents"
+
 newEntity{
 	define_as = "BASE_DIGGER",
 	slot = "TOOL",
@@ -27,31 +30,9 @@ newEntity{
 	desc = [[Allows you to dig a wall, remove a tree, create ways.]],
 	add_name = " (#DIGSPEED#)",
 
-	max_power = 1, power_regen = 1,
-	use_power = { name = "dig a wall, cut a tree, ...", power = 0, use = function(self, who)
-		local tg = {type="bolt", range=1, nolock=true}
-		local x, y = who:getTarget(tg)
-		if not x or not y then return nil end
-
-		local wait = function()
-			local co = coroutine.running()
-			local ok = false
-			who:restInit(self.digspeed, "digging", "dug", function(cnt, max)
-				if cnt > max then ok = true end
-				coroutine.resume(co)
-			end)
-			coroutine.yield()
-			if not ok then
-				game.logPlayer(who, "You have been interrupted!")
-				return false
-			end
-			return true
-		end
-		if wait() then
-			who:project(tg, x, y, engine.DamageType.DIG, 1)
-		end
-		return {id=true, used=true}
-	end},
+	carrier = {
+		learn_talent = { [Talents.T_DIG_OBJECT] = 1, },
+	},
 
 	egos = "/data/general/objects/egos/digger.lua", egos_chance = resolvers.mbonus(10, 5),
 }
@@ -62,6 +43,9 @@ newEntity{ base = "BASE_DIGGER",
 	cost = 3,
 	material_level = 1,
 	digspeed = resolvers.rngavg(35,40),
+	wielder = {
+		inc_stats = { [Stats.STAT_STR] = 1, },
+	},
 }
 
 newEntity{ base = "BASE_DIGGER",
@@ -70,6 +54,9 @@ newEntity{ base = "BASE_DIGGER",
 	cost = 3,
 	material_level = 3,
 	digspeed = resolvers.rngavg(27,33),
+	wielder = {
+		inc_stats = { [Stats.STAT_STR] = 2, },
+	},
 }
 
 newEntity{ base = "BASE_DIGGER",
@@ -78,4 +65,7 @@ newEntity{ base = "BASE_DIGGER",
 	cost = 3,
 	material_level = 5,
 	digspeed = resolvers.rngavg(20,25),
+	wielder = {
+		inc_stats = { [Stats.STAT_STR] = 3, },
+	},
 }

game/modules/tome/data/talents/misc/objects.lua

@@ -401,4 +401,55 @@ newTalent{
 	info = function(self, t)
 		return ([[Remove any talent Morrigor has absorbed.]])
 	end,
-}
\ No newline at end of file
+}
+
+newTalent{
+	name = "Dig", short_name = "DIG_OBJECT",
+	type = {"misc/objects", 1},
+	findBest = function(self, t)
+		local best = nil
+		local find = function(inven)
+			for item, o in ipairs(inven) do
+				if o.digspeed and (not best or o.digspeed < best.digspeed) then best = o end
+			end
+		end
+		for inven_id, inven in pairs(self.inven) do find(inven) end
+		return best
+	end,
+	points = 1,
+	hard_cap = 1,
+	no_npc_use = true,
+	action = function(self, t)
+		local best = t.findBest(self, t)
+		if not best then game.logPlayer(self, "You require a digger to dig.") return end
+
+		local tg = {type="bolt", range=1, nolock=true}
+		local x, y = self:getTarget(tg)
+		if not x or not y then return nil end
+
+		local wait = function()
+			local co = coroutine.running()
+			local ok = false
+			self:restInit(best.digspeed, "digging", "dug", function(cnt, max)
+				if cnt > max then ok = true end
+				coroutine.resume(co)
+			end)
+			coroutine.yield()
+			if not ok then
+				game.logPlayer(self, "You have been interrupted!")
+				return false
+			end
+			return true
+		end
+		if wait() then
+			self:project(tg, x, y, engine.DamageType.DIG, 1)
+		end
+
+		return true
+	end,
+	info = function(self, t)
+		local best = t.findBest(self, t) or {digspeed=100}
+		return ([[Dig/cut a tree/...
+		Digging takes %d turns (based on your currently best digger available).]]):format(best.digspeed)
+	end,
+}