Sandworm Tunnelers now have the stairs on their nodes list

git-svn-id: http://svn.net-core.org/repos/t-engine4@1595 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/ai/sandworm_tunneler.lua

@@ -25,9 +25,19 @@ local DamageType = require "engine.DamageType"
 newAI("sandworm_tunneler", function(self)
 	-- Get a spot
 	if not self.ai_state.spot_x then
-		local s = rng.table(game.level.spots)
-		self.ai_state.spot_x = s.x
-		self.ai_state.spot_y = s.y
+		if game.level.default_up and rng.chance(#game.level.spots + 2) then
+			-- Go for the stairs
+			self.ai_state.spot_x = game.level.default_up.x
+			self.ai_state.spot_y = game.level.default_up.y
+		elseif game.level.default_down and rng.chance(#game.level.spots + 2) then
+			-- Go for the stairs
+			self.ai_state.spot_x = game.level.default_down.x
+			self.ai_state.spot_y = game.level.default_down.y
+		else
+			local s = rng.table(game.level.spots)
+			self.ai_state.spot_x = s.x
+			self.ai_state.spot_y = s.y
+		end
 	end
 
 	-- Move toward it, digging your way to it

game/modules/tome/data/talents/techniques/magical-combat.lua

@@ -24,6 +24,7 @@ newTalent{
 	points = 5,
 	require = techs_req1,
 	sustain_stamina = 20,
+	no_energy = true,
 	cooldown = 5,
 	activate = function(self, t)
 		return {}