我正在尝试在 Android (Adobe AIR) 上为我的游戏执行“保存”和“恢复”功能。
到目前为止，它似乎可以保存游戏，但是因为加载时出现错误。
这就是我所做的，
public function save(e){
//Save data in local memory
if(useShared){
shared = SharedObject.getLocal("myApp");
shared.data[saveNum] = jsonSave;
shared.flush();
}
private function restore(e){
if (useShared){
// Get data from local memory
shared = SharedObject.getLocal("myApp");
if(shared.data[saveNum]){
trace("Restoring: " + shared.data[saveNum]);
allSaveData = new Object;
allSaveData = JSON.stringify(shared.data[saveNum]);
}
}
在这之间我放置了所有需要的信息（玩家的当前位置……等等）。
我的功能有误吗？
谢谢您的帮助，
编辑 ：
如果我点击“保存”，一切似乎都正常，但如果那样我就无法加载我的游戏。在调试模式下，我遇到了这个错误：
ReferenceError: Error #1069: Property datetime not found on String and there is no default value。在 com.laserdragonuniversity.alpaca::SaveRestore/populateSaves()[C:\Users\Stéphan\Desktop\18 aout\La Brousse en folie tactile\com\laserdragonuniversity\alpaca\SaveRestore.as:76] 在 com.laserdragonuniversity.alpaca ::SaveRestore/showSaver()[C:\Users\Stéphan\Desktop\18 aout\La Brousse en folie tactile\com\laserdragonuniversity\alpaca\SaveRestore.as:149] at com.laserdragonuniversity.alpaca::Toolbar/showSaver( )[C:\Users\Stéphan\Desktop\18 aout\La Brousse en folie tactile\com\laserdragonuniversity\alpaca\Toolbar.as:129]
这是我保存/恢复功能的所有代码。
package com.laserdragonuniversity.alpaca {
import flash.events.*;
import com.adobe.serialization.json.*;
import flash.display.Stage;
import flash.display.MovieClip;
import flash.net.SharedObject;
import flash.net.*;
import flash.display.Loader;
import flash.utils.getDefinitionByName;
import flash.text.TextField;
import flash.text.TextFormat;
public class SaveRestore extends MovieClip {
private var inv:Inventory;
private var puzzle:Puzzle;
private var player:Player;
private var back:Background;
private var options:Options;
private var stageRef:Stage;
private var shared:SharedObject;
private var useExternalFile:Boolean = false; //Set this to false if you don't want to deal with server-side scripts
private var useShared:Boolean = true; // Set this to false if you don't want to use Flash player's local memory
private var exLoader:URLLoader;
private var exReq:URLRequest;
private var saveURL:String;
private var saveID:String;
private var userID:String;
private var checkDialog:MovieClip;
private var slotsTaken:Array = new Array(false, false, false);
private var currentEvent;
private var confirm:MovieClip;
private var allSaveData:Object;
public function SaveRestore(stageRef:Stage, saveURL:String, saveID:String) {
this.stageRef = stageRef;
this.saveURL = saveURL;
this.saveID = saveID;
switchSave.gotoAndStop("on");
switchRestore.gotoAndStop("off");
// Un-comment this if you want save data to be cleared each time the SWF is opened
// Probably only necessary for testing purposes
//shared = SharedObject.getLocal(saveID);
//shared.clear();
populateSaves();
restore1.visible = false;
restore2.visible = false;
restore3.visible = false;
checkDialog = new saveOverwrite;
addChild(checkDialog);
checkDialog.visible = false;
addEventListener(Event.ADDED_TO_STAGE, setUpListeners);
}
public function populateSaves(){
if(useExternalFile){
// Here's where you can grab data from external .js files if you choose. This will require the use of server-side scripts
} else if(useShared){
shared = SharedObject.getLocal("myApp");
var saveNum:String;
var shotNum:String;
for (var i = 1; i < 4; i++){
saveNum = "save" + i;
if (shared.data[saveNum]){
slotsTaken[i-1] = true;
var thisSave = JSON.stringify(shared.data[saveNum]);
this[saveNum].savedetail.text = thisSave.datetime;
this["restore"+i].savedetail.text = thisSave.datetime;
// Use a MovieClip of the background as a screenshot
var bg:Object = fakeScreenshot(thisSave.playerLoc.room);
this["save"+i].addChild(bg.bg);
this["save"+i].addChild(bg.bgmask);
var bg2:Object = fakeScreenshot(thisSave.playerLoc.room);
this["restore"+i].addChild(bg2.bg);
this["restore"+i].addChild(bg2.bgmask);
}
}
}
}
public function setUpListeners(e){
switchSave.addEventListener(MouseEvent.CLICK, gotoSave, false, 0, true);
switchSave.buttonMode = true;
switchRestore.addEventListener(MouseEvent.CLICK, gotoRestore, false, 0, true);
switchRestore.buttonMode = true;
save1.btn.addEventListener(MouseEvent.CLICK, overwriteCheck, false, 0, true);
save2.btn.addEventListener(MouseEvent.CLICK, overwriteCheck, false, 0, true);
save3.btn.addEventListener(MouseEvent.CLICK, overwriteCheck, false, 0, true);
restore1.btn.addEventListener(MouseEvent.CLICK, restore, false, 0, true);
restore2.btn.addEventListener(MouseEvent.CLICK, restore, false, 0, true);
restore3.btn.addEventListener(MouseEvent.CLICK, restore, false, 0, true);
checkDialog.canceller.addEventListener(MouseEvent.CLICK, cancelled, false, 0, true);
checkDialog.saver.addEventListener(MouseEvent.CLICK, overwrite, false, 0, true);
closer.addEventListener(MouseEvent.CLICK, closeSaver, false, 0, true);
addEventListener("closeThis", closeSaver);
}
public function gotoSave(e){
gotoAndStop("save");
switchSave.gotoAndStop("on");
switchRestore.gotoAndStop("off");
restore1.visible = false;
restore2.visible = false;
restore3.visible = false;
save1.visible = true;
save2.visible = true;
save3.visible = true;
}
public function gotoRestore(e){
gotoAndStop("restore");
switchSave.gotoAndStop("off");
switchRestore.gotoAndStop("on");
restore1.visible = true;
restore2.visible = true;
restore3.visible = true;
save1.visible = false;
save2.visible = false;
save3.visible = false;
}
public function showSaver(){
if(checkDialog.visible){
checkDialog.visible = false;
}
populateSaves();
visible = true;
Engine.playerControl = false;
gotoSave(null);
}
public function overwriteCheck(e){
currentEvent = e;
var parentBtn = e.target.parent.name;
var slotNum = parentBtn.substr(parentBtn.length-1, 1);
if (slotsTaken[slotNum-1]){
trace("Save taken, confirming overwrite");
checkDialog.visible = true;
} else {
save(e);
}
}
public function cancelled(e){
showSaver();
}
public function overwrite(e){
save(currentEvent);
}
public function save(e){
puzzle = Engine.puzzle;
inv = Engine.inv;
player = Engine.player;
back = Engine.back;
options = Engine.options;
var saveNum:String = e.target.parent.name;
//Get the status of all the puzzles
allSaveData = new Object;
allSaveData.puzzleStatus = new Object;
allSaveData.puzzleStatus = puzzle.returnPuzzles();
//Get the inventory
allSaveData.allInv = new Array();
var allItems = inv.returnItems("all");
for (var i in allItems){
if(allItems[i].displayName){
//trace ("Saving " + allItems[i]);
allSaveData.allInv.push(allItems[i].displayName);
}
}
allSaveData.currentInv = new Array();
var currentItems = inv.returnItems(null);
for (i in currentItems){
allSaveData.currentInv.push([currentItems[i].displayName, currentItems[i].lookTag]);
}
//Get the player's current location
allSaveData.playerLoc = new Object;
allSaveData.playerLoc.x = player.x;
allSaveData.playerLoc.y = player.y;
allSaveData.playerLoc.scaleX = player.scaleX;
allSaveData.playerLoc.room = back.currentBack.name;
//Get the settings
allSaveData.optset = options.saveOptions();
// Get the date and time
var thisDate = new Date;
var dateString = thisDate.toLocaleString();
allSaveData.datetime = dateString;
var jsonSave = JSON.stringify(allSaveData);
trace("Saving: " + jsonSave);
//Save data in local memory
if(useShared){
shared = SharedObject.getLocal("myApp");
shared.data[saveNum] = jsonSave;
shared.flush();
}
if(useExternalFile){
// Here's where you can post the data to a server-side script and save it as an external .js file
// The trick would be to figure out how to distinguish one user from another
// Either by creating login functionality, or just identifying by IP or something like that
}
//Update save info
e.target.parent.savedetail.text = dateString;
showConfirm("saved", saveNum.substr(saveNum.length-1, 1));
dispatchEvent(new Event("closeThis"));
}
private function restore(e){
puzzle = Engine.puzzle;
inv = Engine.inv;
player = Engine.player;
back = Engine.back;
options = Engine.options;
var parentBtn = e.target.parent.name;
var slotNum = parentBtn.substr(parentBtn.length-1, 1);
var saveNum = "save" + slotNum;
trace(saveNum);
Engine.restoring = true;
allSaveData = null;
if(useExternalFile){
// Get data from external .js file
} else if (useShared){
// Get data from local memory
shared = SharedObject.getLocal("myApp");
if(shared.data[saveNum]){
trace("Restoring: " + shared.data[saveNum]);
allSaveData = new Object;
allSaveData = JSON.stringify(shared.data[saveNum]);
}
}
// Restore game data
if(allSaveData){
puzzle.restorePuzzles(allSaveData.puzzleStatus);
inv.restoreInv(allSaveData.currentInv, allSaveData.allInv);
options.restoreOptions(allSaveData.optset);
Engine.newBack = allSaveData.playerLoc.room;
addEventListener("repose", reposePlayer);
stageRef.dispatchEvent(new Event("changeBackground"));
showConfirm("restored", slotNum);
dispatchEvent(new Event("closeThis"));
} else {
trace ("No save data found");
Engine.restoring = false;
}
}
private function fakeScreenshot(bgName:String):Object{
// Flash's local memory is too small to contain real screenshots, so we can fake it by creating an instance of the background
var fakeShot:Object = new Object;
var bgRef = getDefinitionByName(bgName);
var bg = new bgRef;
// Remove all the interface junk from the background movieclip
for (var c = 0; c < bg.numChildren; ++c){
var thisChild = bg.getChildAt(c);
if (thisChild.name.search("_L") != -1 ||
thisChild.name.search("_U") != -1 ||
thisChild.name.search("_G") != -1 ||
thisChild.name.search("_T") != -1 ){
if (thisChild.usePoint)
thisChild.usePoint.visible = false;
}
if(thisChild.name.search("_O") != -1){
thisChild.usePoint.visible = false;
thisChild.depthSplit.visible = false;
thisChild.nodeUL.visible = false;
thisChild.nodeUR.visible = false;
thisChild.nodeLR.visible = false;
thisChild.nodeLL.visible = false;
}
if (thisChild.name.search("EXIT") != -1)
thisChild.visible = false;
if (thisChild.name.search("startPoint") != -1)
thisChild.visible = false;
}
bg.scaleX = .1;
bg.scaleY = .1;
bg.x = 10;
bg.y = 5;
var bgmask:MovieClip = new MovieClip;
bgmask.graphics.beginFill(0x000000, .5);
bgmask.graphics.drawRect(0, 0, 70, 45);
bgmask.graphics.endFill();
bgmask.x = bg.x;
bgmask.y = bg.y;
bg.mask = bgmask;
fakeShot.bg = bg;
fakeShot.bgmask = bgmask;
return fakeShot;
}
private function reposePlayer(e){
player = Engine.player;
player.x = allSaveData.playerLoc.x;
player.y = allSaveData.playerLoc.y;
player.scaleX = allSaveData.playerLoc.scaleX;
}
private function showConfirm(type:String, slot){
confirm = null;
confirm = new MovieClip;
confirm.graphics.beginFill(0x000000, .75);
confirm.graphics.drawRoundRect(0, 0, 200, 25, 10);
confirm.graphics.endFill();
stageRef.addChild(confirm);
var conftext:TextField = new TextField();
conftext.text = "Game " + type + " at slot " + slot;
var format1:TextFormat = new TextFormat();
format1.font = "Arial";
format1.size = 18;
format1.color = 0xFFFFFF;
conftext.setTextFormat(format1);
conftext.width = confirm.width - 5;
conftext.x = 5;
confirm.addChild(conftext);
confirm.addEventListener(Event.ENTER_FRAME, fadeConf);
}
private function fadeConf(e){
if (confirm.alpha > 0){
confirm.alpha -= .05;
} else {
confirm.removeEventListener(Event.ENTER_FRAME, fadeConf);
stageRef.removeChild(confirm);
}
}
private function closeSaver(e):void{
visible = false;
Engine.playerControl = true;
Engine.toolbar.dispatchEvent(new Event("closedWindow"));
}
}
}