EntityComponentSystem/src/main/java/com/example/model/Race.java

package com.example.model;

public enum Race {
    Human {
        @Override
        public Factory getFactory() {
            return humanFactory;
        }

        @Override
        public int getCost() {
            return 110;
        }

        @Override
        public int getLeaderCost() {
            return 220;
        }
    },
    Orc {
        @Override
        public Factory getFactory() {
            return orcFactory;
        }

        @Override
        public int getCost() {
            return 150;
        }

        @Override
        public int getLeaderCost() {
            return 300;
        }
    }
    ;

    static Factory humanFactory = new HumanFactory();
    static Factory orcFactory = new OrcFactory();

    public abstract Factory getFactory();
    public abstract int getCost();
    public abstract int getLeaderCost();
}