Removed quartz and dirium, added plastic + dense alloy

core/src/io/anuke/mindustry/resource/Item.java

@@ -26,20 +26,15 @@ public class Item implements Comparable<Item>{
 	},
 	steel = new Item("steel"),
 	titanium = new Item("titanium"),
-	dirium = new Item("dirium"),
 	uranium = new Item("uranium"){
 		{
 			explosiveness = 0.1f;
 			material = false;
 		}
 	},
-	quartz = new Item("quartz") {
-		{
-			material = false;
-			fluxiness = 0.65f;
-		}
-	},
 	silicon = new Item("silicon"),
+	plastic = new Item("plastic"),
+	densealloy = new Item("densealloy"),
 	biomatter = new Item("biomatter"){
 		{
 			material = false;

core/src/io/anuke/mindustry/resource/Recipes.java

@@ -62,6 +62,7 @@ public class Recipes {
 
 		//new Recipe(production, ProductionBlocks.stonedrill, stack(Item.stone, 12)),
 		new Recipe(production, ProductionBlocks.irondrill, stack(Item.iron, 25)),
+		new Recipe(production, ProductionBlocks.copperdrill, stack(Item.iron, 25)),
 		new Recipe(production, ProductionBlocks.coaldrill, stack(Item.iron, 25), stack(Item.iron, 40)),
 		new Recipe(production, ProductionBlocks.titaniumdrill, stack(Item.iron, 50), stack(Item.steel, 50)),
 		new Recipe(production, ProductionBlocks.uraniumdrill, stack(Item.iron, 40), stack(Item.steel, 40)),

core/src/io/anuke/mindustry/world/blocks/ProductionBlocks.java

@@ -167,12 +167,20 @@ public class ProductionBlocks{
 			drillTime = 360;
 		}
 	},
+
+	copperdrill = new Drill("copperdrill"){
+		{
+			resource = Blocks.copper;
+			result = Item.copper;
+			drillTime = 400;
+		}
+	},
 	
 	coaldrill = new Drill("coaldrill"){
 		{
 			resource = Blocks.coal;
 			result = Item.coal;
-			drillTime = 360;
+			drillTime = 420;
 		}
 	},