v2.4.1: 13 clover, sundial, and trap mechanism upgrade costs down

core/src/main/assets/messages/items/items.properties

@@ -1325,7 +1325,7 @@ items.trinkets.thirteenleafclover.name=thirteen leaf clover
 items.trinkets.thirteenleafclover.desc=Somehow stewing in the alchemy pot has caused this clover to grow a bunch of extra leaves! It's not really clear if this trinket is lucky or unlucky, perhaps this trinket will make your luck more chaotic?\n\nNormally when dealing or blocking damage, the game makes numbers closer to the average more common. At its current level this trinket has a _%d%%_ chance to invert this, making numbers closer to the maximum or minimum more likely to appear instead.\n\nThis trinket costs very little energy to upgrade.
 
 items.trinkets.trapmechanism.name=trap mechanism
-items.trinkets.trapmechanism.desc=The core mechanism of one of the dungeon's pitfall traps, carefully carved out of the floor so it can be carried. It seems to be magically tied to the dungeon itself, making terrain more hazardous for you and the dungeon's inhabitants.\n\nAt its current level this trinket will make _%d%%_ of regular floors become filled with either traps or chasms instead.
+items.trinkets.trapmechanism.desc=The core mechanism of one of the dungeon's pitfall traps, carefully carved out of the floor so it can be carried. It seems to be magically tied to the dungeon itself, making terrain more hazardous for you and the dungeon's inhabitants.\n\nAt its current level this trinket will make _%d%%_ of regular floors become filled with either traps or chasms instead.\n\nThis trinket costs relatively little energy to upgrade.
 
 items.trinkets.wondrousresin.name=wondrous resin
 items.trinkets.wondrousresin.desc=This shimmering blue resin appears to have the distilled essence of a cursed wand's magic. The magic from the alchemy pot has seemed to stabilize it somewhat, and its now affecting your wands.\n\nAt its current level this trinket will force cursed wand effects to become neutral or positive _%1$s%%_ of the time, and will cause uncursed wands to fire an additional cursed zap _%2$s%%_ of the time.\n\nThis trinket costs a moderately large amount of energy to upgrade.

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/trinkets/DimensionalSundial.java

@@ -37,8 +37,8 @@ public class DimensionalSundial extends Trinket {
 
 	@Override
 	protected int upgradeEnergyCost() {
-		//5 -> 5(10) -> 5(15) -> 5(20)
-		return 5;
+		//5 -> 2(7) -> 3(10) -> 5(15)
+		return 2 + Math.round(level()*1.33f);
 	}
 
 	@Override

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/trinkets/ThirteenLeafClover.java

@@ -33,8 +33,8 @@ public class ThirteenLeafClover extends Trinket {
 
 	@Override
 	protected int upgradeEnergyCost() {
-		//5 -> 5(10) -> 5(15) -> 5(20)
-		return 5;
+		//5 -> 2(7) -> 3(10) -> 5(15)
+		return 2 + Math.round(level()*1.33f);
 	}
 
 	@Override

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/trinkets/TrapMechanism.java

@@ -38,8 +38,8 @@ public class TrapMechanism extends Trinket {
 
 	@Override
 	protected int upgradeEnergyCost() {
-		//5 -> 8(13) -> 10(23) -> 12(35)
-		return 6+2*level();
+		//5 -> 5(10) -> 7(17) -> 8(25)
+		return Math.round(5+1.67f*level());
 	}
 
 	@Override