我们正在制作一款六人多人游戏，我负责一个网络课程。该游戏采用了Slick 2D。在游戏中有实体（代码如下所示）
package Game;
import org.newdawn.slick.*;
public abstract class Entity {
double maxHealth, health, speed, damage, width, height, locationX, locationY;
Animation standing, walkingLeft, walkingRight, attacking, jumping, current;
long pastTime = 0;
public boolean isReadyToAttack(long delta) {
if(pastTime < 2 * 500) { //multiply by 1000 to get milliseconds
pastTime += delta;
return false;
}else{
pastTime = 0;
return true;
}
}
public void setMaxHealth(double d){
maxHealth = d;
}
public void setHealth(double d){
health = d;
}
public void setSpeed(double x){
speed = x;
}
public void setDamage(double x){
damage = x;
}
public void setLocation(double x, double y){
locationX = x;
locationY = y;
}
public void setSprites(Animation s, Animation r){
standing = s;
walkingRight = r;
}
public void setCurrent(Animation a){
current = a;
}
public double getMaxHealth(){
return maxHealth;
}
public double getHealth(){
return health;
}
public double getSpeed(){
return speed;
}
public double getDamage(){
return damage;
}
public double getLocationX(){
return locationX;
}
public double getLocationY(){
return locationY;
}
public Animation getStanding(){
return standing;
}
public Animation getRight(){
return walkingRight;
}
public Animation getCurrent(){
return current;
}
public abstract double getAttackRange();
}
实体类也由Heroes类扩展，该类由Ares类进一步扩展。 Ares是我们游戏中的六个角色之一，当你开始游戏时，你可以从开始菜单中的六个中选择一个。
这是Hero课程：
package Game;
import org.newdawn.slick.Animation;
public abstract class Hero extends Entity{
static double gravity = 0.1;
double velocity;
int level;
boolean disabled, grounded = true;
public void setLevel(int i){
level = i;
}
public void setVelocity(double d){
velocity = d;
}
public void setDisabled(boolean b){
disabled = b;
}
public void setGrounded(boolean b){
grounded = b;
}
public int getLevel(){
return level;
}
public double getVelocity(){
return velocity;
}
public boolean getDisabled(){
return disabled;
}
public boolean getGrounded(){
return grounded;
}
public double getGravity(){
return gravity;
}
public boolean isAlive(){
if(getHealth() > 0)
return true;
return false;
}
public void attack(Entity gettingAttacked, Hero attacking) {
gettingAttacked.setHealth(gettingAttacked.getHealth() - attacking.getDamage());
}
public boolean isReadyToRegenerate(long delta) {
if(pastTime < 1 * 1000){
pastTime += delta;
return false;
}
else{
pastTime = 0;
return true;
}
}
public static void regenerate(Hero h, long delta){
if(h.getHealth() >= 0 && h.getHealth() < h.getMaxHealth())
if(h.isReadyToRegenerate(delta))
h.setHealth(h.getHealth() + (h.getMaxHealth()) * 0.01);
}
public abstract void levelUp();
}
这是Ares类：
package Game;
import org.newdawn.slick.Animation;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.SpriteSheet;
public class Ares extends Hero {
public Ares() throws SlickException {
setHealth(500);
setSpeed(0.4);
setDamage(70);
setLocation(850,625);
setSprites(new Animation(new SpriteSheet("res/Ares.png", 191, 275), 200), new Animation(new SpriteSheet("res/AresWalk.png", 191, 275), 200));
}
public void levelUp() {
level += 1;
health *= 1.1;
damage *= 1.1;
}
public double getAttackRange() {
return 250;
}
public double maxHealth() {
return 500;
}
}
这是战斗代码，其中包含主要的游戏代码，代码目前尚未完成且只有动作：
package Game;
import java.util.ArrayList;
import org.lwjgl.input.*;
import org.newdawn.slick.*;
import org.newdawn.slick.geom.Rectangle;
import org.newdawn.slick.state.*;
public class Battle extends BasicGameState {
private ArrayList<Entity> entities = new ArrayList<Entity>();
private Hero player;
private Image background;
private int midScreen, ground;
public void init(GameContainer gc, StateBasedGame sbg) throws SlickException{
gc.setVSync(true);
player = new Ares();
player.setCurrent(player.getStanding());
entities.add(player);
background = new Image("res/Background.png");
midScreen = 800;
ground = 625;
}
public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException{
g.translate((float)-player.getLocationX() + midScreen, (float)-player.getLocationY() + ground);
background.draw(0, -920);
for(int i = 0; i < entities.size(); i++)
entities.get(i).getCurrent().draw((float)entities.get(i).getLocationX(), (float)entities.get(i).getLocationY());
}
public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException {
player.getCurrent().update(delta); // ensures
Input kb = gc.getInput();
if (kb.isKeyDown(Input.KEY_SPACE) && player.getGrounded()) {
player.setGrounded(false);
player.setVelocity(7);
player.setLocation(player.getLocationX(), player.getLocationY() - player.getVelocity());
player.setCurrent(player.getStanding());
}
else if (kb.isKeyDown(Input.KEY_A) && player.getLocationX() > 800) {
player.setLocation(player.getLocationX() - player.getSpeed() * delta, player.getLocationY());
if(player.grounded)
player.setCurrent(player.getRight());
}
else if (kb.isKeyDown(Input.KEY_D) && player.getLocationX() < 8580) {
player.setLocation(player.getLocationX() + player.getSpeed() * delta, player.getLocationY());
if(player.grounded)
player.setCurrent(player.getRight());
}
else
player.setCurrent(player.getStanding());
if (Math.abs(player.getLocationY() - ground) < .01)
player.setGrounded(true);
if (player.getGrounded() == false) {
player.setVelocity(player.getVelocity() - player.getGravity());
player.setLocation(player.getLocationX(), player.getLocationY() - player.getVelocity());
}
}
public int getID(){
return 1;
}
}
我遇到的困难是创建一个服务器和客户端来获取玩家的输入，例如位置，谁选择了哪个玩家等等。我想知道如果在Battle中，当Player对象被制作时，如何我是否能够获取对象的位置和其他特定属性，并将它们提供给其他计算机。
注意：我在Java编码，并尝试使用TCP连接对此进行编码。如果您认为它可能更容易，我对UDP开放。只是简单介绍一下需要做什么，或许还有一些代码，请不要简单地给我答案。