diff --git a/utils.lua b/utils.lua
--- a/utils.lua
+++ b/utils.lua
@@ -215,16 +215,16 @@ function darkroom(tab)
 	local life;
 	local entered;
 	local left;
-	if (not tab.has_light) then
+	if not tab.has_light then
 		tab.has_light = false;
 	end;
-	if (tab.life) then
+	if tab.life then
 		life = tab.life;
 	end;
-	if (tab.entered) then
+	if tab.entered then
 		entered = tab.entered;
 	end;
-	if (tab.left) then
+	if tab.left then
 		left = tab.left;
 	end;
 	tab.entered = function(s)
@@ -288,7 +288,7 @@ function darkroom(tab)
 			life(s);
 		end;
 	end;
-	if (not tab.dsc) then
+	if not tab.dsc then
 		tab.dsc = function(s)
 			local lt;
             local hasLight = EngineUtils.getValue(s.has_light, s);