Implemented replacement blocks

core/src/io/anuke/mindustry/entities/Bullet.java

@@ -22,6 +22,10 @@ public class Bullet extends BulletEntity{
 		type.draw(this);
 	}
 	
+	public float drawSize(){
+		return 8;
+	}
+	
 	@Override
 	public void update(){
 		

core/src/io/anuke/mindustry/entities/BulletType.java

@@ -25,7 +25,7 @@ public abstract class BulletType  extends BaseBulletType<Bullet>{
 	},
 	sniper = new BulletType(3f, 20){
 		public void draw(Bullet b){
-			Draw.color("lightgray");
+			Draw.color(Color.LIGHT_GRAY);
 			Draw.rect("bullet", b.x, b.y, b.angle());
 			Draw.reset();
 		}

core/src/io/anuke/mindustry/entities/enemies/Enemy.java

@@ -41,6 +41,10 @@ public class Enemy extends DestructibleEntity{
 		heal();
 	}
 	
+	public float drawSize(){
+		return 12;
+	}
+	
 	void move(){
 		Vector2 vec  = Pathfind.find(this);
 		vec.sub(x, y).setLength(speed);