Implemented ground mech boosting

core/src/mindustry/entities/comp/EntityComp.java

@@ -0,0 +1,66 @@
+package mindustry.entities.comp;
+
+import arc.func.*;
+import arc.util.io.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.entities.*;
+import mindustry.gen.*;
+
+import static mindustry.Vars.player;
+
+@Component
+@BaseComponent
+abstract class EntityComp{
+    private transient boolean added;
+    transient int id = EntityGroup.nextId();
+
+    boolean isAdded(){
+        return added;
+    }
+
+    void update(){}
+
+    void remove(){
+        added = false;
+    }
+
+    void add(){
+        added = true;
+    }
+
+    boolean isLocal(){
+        return ((Object)this) == player || ((Object)this) instanceof Unitc && ((Unitc)((Object)this)).controller() == player;
+    }
+
+    boolean isNull(){
+        return false;
+    }
+
+    <T> T as(Class<T> type){
+        return (T)this;
+    }
+
+    <T> T with(Cons<T> cons){
+        cons.get((T)this);
+        return (T)this;
+    }
+
+    @InternalImpl
+    abstract int classId();
+
+    @InternalImpl
+    abstract boolean serialize();
+
+    @MethodPriority(1)
+    void read(Reads read){
+        afterRead();
+    }
+
+    void write(Writes write){
+
+    }
+
+    void afterRead(){
+
+    }
+}