package org.tjuscs.bulletgame.model.item; import org.tjuscs.bulletgame.model.GameModel; import org.tjuscs.bulletgame.model.Item; public class ItemExtend extends Item { public ItemExtend() { } public ItemExtend(double x, double y) { this.init(x, y, 7); } @Override public void collect() { GameModel.getInstance().setLife(GameModel.getInstance().getLife() + 1); } }