v0.3.5: some code cleanup & bugfixes to pincushion

src/com/shatteredpixel/shatteredpixeldungeon/actors/buffs/PinCushion.java

@@ -27,14 +27,19 @@ import com.watabou.utils.Bundle;
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.LinkedList;
 
 public class PinCushion extends Buff {
 
 	private ArrayList<MissileWeapon> items = new ArrayList<MissileWeapon>();
 
-	public void stick(MissileWeapon item){
-		items.add(item);
+	public void stick(MissileWeapon projectile){
+		for (Item item : items){
+			if (item.isSimilar(projectile)){
+				item.quantity(item.quantity() + projectile.quantity());
+				return;
+			}
+		}
+		items.add(projectile);
 	}
 
 	@Override