(engine) Entity: Added getTemporaryValue function. Updated some temp value...

(engine) Entity: Added getTemporaryValue function.  Updated some temp value error messages to include name/uid of entity involved.

Fixed a bad reference in damDesc

game/engines/default/engine/Entity.lua

@@ -1026,9 +1026,9 @@ function _M:removeTemporaryValue(prop, id, noupdate)
 		else
 			if config.settings.cheat then
 				if type(v) == "nil" then
-					error("ERROR!!! unsupported temporary value type: "..type(v).." :=: "..tostring(v).." for "..tostring(prop))
+					error("ERROR!!! unsupported temporary value type: "..type(v).." :=: "..tostring(v).." for "..tostring(prop)..(" [%s] %s"):format(self.uid, self.name))
 				else
-					error("unsupported temporary value type: "..type(v).." :=: "..tostring(v).." for "..tostring(prop))
+					error("unsupported temporary value type: "..type(v).." :=: "..tostring(v).." for "..tostring(prop)..(" [%s] %s"):format(self.uid, self.name))
 				end
 			end
 		end
@@ -1040,6 +1040,12 @@ function _M:removeTemporaryValue(prop, id, noupdate)
 	end
 end
 
+--- Returns a previously set temporary value, see addTemporaryValue()
+-- @int id the index of the previously set property
+function _M:getTemporaryValue(id)
+	return self.compute_vals and self.compute_vals[id]
+end
+
 --- Helper function to add temporary values
 -- @param[type=table] t
 -- @param k

game/modules/tome/data/talents.lua

@@ -62,7 +62,7 @@ damDesc = function(self, type, dam)
 		dam = dam * 0.4
 	end
 	if self:attr("invisible_damage_penalty") then
-		dam = dam * util.bound(1 - (src.invisible_damage_penalty / (src.invisible_damage_penalty_divisor or 1)), 0, 1)
+		dam = dam * util.bound(1 - (self.invisible_damage_penalty / (self.invisible_damage_penalty_divisor or 1)), 0, 1)
 	end
 	if self:attr("numbed") then
 		dam = dam - dam * self:attr("numbed") / 100