Research cost multipliers for Serpulo resources

core/src/mindustry/world/Block.java

@@ -271,8 +271,6 @@ public class Block extends UnlockableContent{
     public Effect destroyEffect = Fx.dynamicExplosion;
     /** Multiplier for cost of research in tech tree. */
     public float researchCostMultiplier = 1;
-    /** Multipliers for research costs on a per-item basis. Format: ID to multiplier. */
-    public ObjectFloatMap<Item> researchCostMultipliers = new ObjectFloatMap<>();
     /** Whether this block has instant transfer.*/
     public boolean instantTransfer = false;
     /** Whether you can rotate this block after it is placed. */
@@ -869,7 +867,7 @@ public class Block extends UnlockableContent{
     public ItemStack[] researchRequirements(){
         ItemStack[] out = new ItemStack[requirements.length];
         for(int i = 0; i < out.length; i++){
-            int quantity = 60 + Mathf.round(Mathf.pow(requirements[i].amount, 1.1f) * 20 * researchCostMultiplier * researchCostMultipliers.get(requirements[i].item, 1f), 10);
+            int quantity = 60 + Mathf.round(Mathf.pow(requirements[i].amount, 1.1f) * 20 * researchCostMultiplier, 10);
 
             out[i] = new ItemStack(requirements[i].item, UI.roundAmount(quantity));
         }

core/src/mindustry/world/blocks/defense/turrets/ItemTurret.java

@@ -133,6 +133,7 @@ public class ItemTurret extends Turret{
 
         @Override
         public void handleItem(Building source, Item item){
+            //TODO instead of all this "entry" crap, turrets could just accept only one type of ammo at a time - simpler for both users and the code
 
             if(item == Items.pyratite){
                 Events.fire(Trigger.flameAmmo);