我想知道如何在lwjgl中切换显示。你做swapBuffers（name_of_display）吗？我的意思是菜单屏幕，我想切换到选项屏幕而不关闭显示窗口，只关闭窗口内的面板。
答案 0 :(得分：0)
这是我处理菜单的游戏容器之一，也许你可以从中获得有用的东西。
package catt.main;
import static org.lwjgl.opengl.GL11.GL_COLOR_BUFFER_BIT;
import static org.lwjgl.opengl.GL11.glClear;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.Display;
import catt.gameMode.Arcade;
import catt.gameMode.Campaign;
import catt.gameMode.Editor;
import catt.gameMode.gameMode;
import catt.gameMode.menu.ArcadeMenu;
import catt.gameMode.menu.CampaignMenu;
import catt.gameMode.menu.ExitMenu;
import catt.gameMode.menu.ExitToMainMenu;
import catt.gameMode.menu.LoadScreen;
import catt.gameMode.menu.MainMenu;
import catt.gameMode.menu.editor.EditorMenu;
import catt.gameMode.menu.editor.LoadMenu;
import catt.gameMode.menu.editor.OverwriteMenu;
import catt.gameMode.menu.editor.SaveMenu;
public class Game {
enum GameState{
GAME, MENU;
}
enum GameType{
//Gamemodes
ARCADE, CAMPAIGN, EDITOR, LOADING,
//Menus
M_MAIN, M_ARCADE, M_EDITOR, M_EXIT, M_EXIT_MAIN, M_CAMPAIGN, M_LOAD, M_SAVE, M_OVERWRITE;
}
public static gameMode gameMode;
public static gameMode gameMenu;
private static GameState GameState;
private static GameType GameType;
private static GameType lastGameType;
private static GameType lastMenu;
private Boolean isRunning = true;
private static String saveFile;
@SuppressWarnings("static-access")
public Game(){
GameState = GameState.MENU;
GameType = GameType.M_MAIN;
lastMenu = GameType;
}
//Gameloop
public void isRunning(){
gameLoad();
while(!Display.isCloseRequested()&&isRunning != false){
glClear(GL_COLOR_BUFFER_BIT);
//Subloops
escape();
update();
Display.update();
Display.sync(60);
}
setGameType("M_EXIT");
}
/**
* Sets the gameMode or gameMenu to the right active state and loads it.
*/
@SuppressWarnings("static-access")
public static void gameLoad(){
if(GameState == GameState.GAME){
if(GameType == GameType.ARCADE){
gameMode = new Arcade();
}else if(GameType == GameType.CAMPAIGN){
gameMode = new Campaign();
}else if(GameType == GameType.EDITOR){
gameMode = new Editor();
}else if(GameType == GameType.LOADING){
gameMode = new LoadScreen();
}
gameMode.load();
}
else if(GameState == GameState.MENU){
if(GameType == GameType.M_MAIN){
gameMenu = new MainMenu();
}else if(GameType == GameType.M_ARCADE){
gameMenu = new ArcadeMenu();
}else if(GameType == GameType.M_CAMPAIGN){
gameMenu = new CampaignMenu();
}else if(GameType == GameType.M_EDITOR){
gameMenu = new EditorMenu();
}else if(GameType == GameType.M_EXIT){
gameMenu = new ExitMenu();
}else if(GameType == GameType.M_SAVE){
gameMenu = new SaveMenu();
}else if(GameType == GameType.M_LOAD){
gameMenu = new LoadMenu();
}else if(GameType == GameType.M_OVERWRITE){
gameMenu = new OverwriteMenu(saveFile);
}else if(GameType == GameType.M_EXIT_MAIN){
gameMenu = new ExitToMainMenu();
}
gameMenu.load();
}
}
/**
* Checks if the menu should be opened or closed if the escape button is pressed;
*/
@SuppressWarnings("static-access")
public void escape(){
if(Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)){
if(Keyboard.next()){
if(GameState == GameState.MENU&&GameType == GameType.M_MAIN){
setGameType("M_EXIT");
}else if(GameState == GameState.MENU&&GameType != GameType.M_MAIN){
if(GameType == GameType.M_SAVE
||GameType == Game.GameType.M_LOAD){
setGameType("M_LAST");
}else{
setState("GAME");
}
}else if(GameState == GameState.GAME){
if(GameType == GameType.ARCADE){
setGameType("M_ARCADE");
}else if(GameType == GameType.CAMPAIGN){
setGameType("M_CAMPAIGN");
}else if(GameType == GameType.EDITOR){
setGameType("M_EDITOR");
}
}
}
}
}
/**
* Switches the game state to the asigned state (Menu or Game)
*/
@SuppressWarnings("static-access")
public void update(){
if(GameState == GameState.MENU){
gameMenu.update();
gameMenu.render();
}else if(GameState == GameState.GAME){
gameMode.update();
gameMode.render();
}
}
@SuppressWarnings("static-access")
public static void setState(String state){
if(state == "GAME"){
GameState = GameState.GAME;
GameType = lastGameType;
}
else if(state == "MENU"){
GameState = GameState.MENU;
GameType = lastMenu;
}
}
/**
* Sets the (enum) GameType and GameState to the next GameType/State.
* @param type
*/
@SuppressWarnings("static-access")
public static void setGameType(String type){
//Gamemodes
if (type == "ARCADE") {
GameState = GameState.GAME;
GameType = GameType.ARCADE;
lastGameType = GameType.ARCADE;
}
else if (type == "CAMPAIGN") {
GameState = GameState.GAME;
GameType = GameType.CAMPAIGN;
lastGameType = GameType.CAMPAIGN;
}
else if (type == "EDITOR") {
GameState = GameState.GAME;
GameType = GameType.EDITOR;
lastGameType = GameType.EDITOR;
}
//Menus
else if (type == "M_MAIN") {
GameState = GameState.MENU;
GameType = GameType.M_MAIN;
lastMenu = GameType.M_MAIN;
}
else if (type == "M_ARCADE") {
GameState = GameState.MENU;
GameType = GameType.M_ARCADE;
lastMenu = GameType.M_ARCADE;
}
else if (type == "M_CAMPAIGN") {
GameState = GameState.MENU;
GameType = GameType.M_CAMPAIGN;
lastMenu = GameType.M_CAMPAIGN;
}
else if (type == "M_EDITOR") {
GameState = GameState.MENU;
GameType = GameType.M_EDITOR;
lastMenu = GameType.M_EDITOR;
}
else if (type == "M_LOAD") {
GameState = GameState.MENU;
GameType = GameType.M_LOAD;
}
else if (type == "M_SAVE") {
GameState = GameState.MENU;
GameType = GameType.M_SAVE;
}
else if (type == "M_OVERWRITE"){
GameState = GameState.MENU;
GameType = GameType.M_OVERWRITE;
}
else if(type == "M_EXIT_MAIN"){
GameState = GameState.MENU;
GameType = GameType.M_EXIT_MAIN;
}
else if (type == "M_EXIT") {
GameState = GameState.MENU;
GameType = GameType.M_EXIT;
}
else if(type == "M_LAST"){
GameState = GameState.MENU;
GameType = lastMenu;
}
gameLoad();
}