希望我能够合理地解释这一点。我遇到了一个问题，我在迭代一个对象并根据每个子对象的参数调用一个函数，然后覆盖返回对象的一些值，然后将它填充到一个自己的主数组中将迭代以创建屏幕上的对象。
这是一个场景基础架构，我在这里实例化一个场景交换机类，然后调用它的方法来确定这个场景需要哪些船只，然后我拉出所需的每个船类的“空白”示例，设置它们的一些这个场景的值是正确的，然后将它们提供给创建真实游戏对象的过程。
这是基本场景加载过程：
//instance scenario loader class
var scenarioMasterObj:LOB_Scenario_Data = new LOB_Scenario_Data();
//first grab the scenario settings object which has all of the data like short description, long description, date battle occured, balance, basically everything but the ship OOBs
//this data will be used to render the scenario selection screen and post-battle results screen. We just pass the scenario number
var scenarioSettigs:Object = scenarioMasterObj.getScenarioSettings(1);
//there are two side-specific OOBs (Orders of Battle, lists of ships for the scenario) to load
for (var OOBToggle:int = 1; OOBToggle < 3; OOBToggle++) {
var currentOOB:Object = new Object();
if (1 == OOBToggle) {
currentOOB = scenarioMasterObj.getScenarioSideOOB(1, 1);
}
else {
currentOOB = scenarioMasterObj.getScenarioSideOOB(1, 2);
}
//specific ship objects we'll need
var currentOOBShip:Object = new Object();
var finalOOBShip:Object = new Object();
//iterate through the current OOB to create the list of ships used in ship creation for side 1 or 2
for each (var currentOOBShip:Object in currentOOB) {
//pull final ship data based on shipClass and country properties of the OOB ships
finalOOBShip = scenarioMasterObj.getShip(currentOOBShip.shipClass, currentOOBShip.country);
//set scenario-specific values copying from the ship in the scenario OOB object
finalOOBShip.name = currentOOBShip.name;
finalOOBShip.sailState = currentOOBShip.sailState;
finalOOBShip.shotType = currentOOBShip.shotType;
finalOOBShip.crewQuality = currentOOBShip.crewQuality;
finalOOBShip.column = currentOOBShip.column;
finalOOBShip.row = currentOOBShip.row;
finalOOBShip.column2 = currentOOBShip.column2;
finalOOBShip.row2 = currentOOBShip.row2;
finalOOBShip.direction = currentOOBShip.direction;
//push to the array that will be iterated through to create the on-screen ship objects
if (1 == OOBToggle) {
shipDataSide1.push(finalOOBShip);
}
else {
shipDataSide2.push(finalOOBShip);
}
}
}
currentOOB对象如下所示：
public function getOOB(side:int):Object {
var return_Scen_OOB:Object = new Object();
if (1 == side) {
return_Scen_OOB = {
Ship1: {shipClass: "GB_90_N", name: "London", country: "GB", column: 7, row: 7, column2: 7, row2: 8, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship2: {shipClass: "GB_74A_N", name: "Impetueux", country: "GB", column: 7, row: 9, column2: 7, row2: 10, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship3: {shipClass: "GB_74A_N", name: "Courageux", country: "GB", column: 7, row: 11, column2: 7, row2: 12, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Average"},
Ship4: {shipClass: "GB_74B_N", name: "Captain", country: "GB", column: 1, row: 1, column2: 1, row2: 1, direction: 1, sailState: "battle", shotType: "round", crewQuality: "Elite"},
Ship5: {shipClass: "GB_38_N", name: "Indefatigable", country: "GB", column: 7, row: 15, column2: 7, row2: 16, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship2: {shipClass: "GB_38_N", name: "Amelia", country: "GB", column: 1, row: 1, column2: 1, row2: 1, direction: 1, sailState: "battle", shotType: "round", crewQuality: "Average"},
Ship6: {shipClass: "GB_36A_N", name: "Amethyst", country: "GB", column: 1, row: 1, column2: 1, row2: 1, direction: 1, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship7: {shipClass: "GB_32B_N", name: "Stag", country: "GB", column: 1, row: 1, column2: 1, row2: 1, direction: 1, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship8: {shipClass: "GB_28_N", name: "Brilliant", country: "GB", column: 1, row: 1, column2: 1, row2: 1, direction: 1, sailState: "battle", shotType: "round", crewQuality: "Average"},
Ship9: {shipClass: "GB_18_N", name: "Cynthia", country: "GB", column: 7, row: 7, column2: 7, row2: 8, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Crack"},
Ship10: {shipClass: "GB_18_N", name: "Saint Vincent", country: "GB", column: 25, row: 30, column2: 25, row2: 31, direction: 4, sailState: "battle", shotType: "round", crewQuality: "Crack"}
}
}
这是拉动“空白”船的调用 - 一个对象已经设置了该给定船舶类的绝大多数属性，并且OOB对象包含我们将添加到的特定于场景的值空白的船。看起来像是：
//After receiving the list of ships from getScenarioSideOOB(), game iterates through those lists calling this function to set up the game's master ship side arrays
public function getShip(shipClass:String, shipCountry:String) {
var returnShip:Object = new Object();
//bummer here is we have to know what classes exist, so if any are added code must change here as well
switch(shipCountry) {
case "GB":
switch(shipClass) {
case "GB_120_N":
returnShip = shipList_GB.GB_120_N;
break;
case "GB_110_N":
returnShip = shipList_GB.GB_110_N;
break;
case "GB_100_N":
returnShip = shipList_GB.GB_100_N;
break;
case "GB_98_N":
returnShip = shipList_GB.GB_98_N;
break;
case "GB_90_N":
returnShip = shipList_GB.GB_90_N;
break;
case "GB_80_N":
returnShip = shipList_GB.GB_80_N;
break;
case "GB_74A_N":
returnShip = shipList_GB.GB_74A_N;
break;
case "GB_74B_N":
returnShip = shipList_GB.GB_74B_N;
break;
所以我首先在国家/地区上切换，然后在传入的shipClass字符串上切换以返回特定的“空白”船舶对象。
问题在于：
//pull final ship data based on shipClass and country properties of the OOB ships
finalOOBShip = scenarioMasterObj.getShip(currentOOBShip.shipClass, currentOOBShip.country);
如果您在OOB对象中注意到，则有多个具有相同shipClass值的船舶。有两个类“GB_74A_N”和两个类“GB_18_N”。第二次使用完全相同的参数调用上述函数（例如，shipCountry ==“GB”和shipClass ==“GB_74A_N”），返回的内容不是新的空白船只，而是对前一个示例的引用。
当我执行覆盖以将此船只示例设置为正确的值时，shipDataSide1或shipDataSide2中的上一个示例也会被覆盖：
//set scenario-specific values copying from the ship in the scenario OOB object
finalOOBShip.name = currentOOBShip.name;
finalOOBShip.sailState = currentOOBShip.sailState;
finalOOBShip.shotType = currentOOBShip.shotType;
finalOOBShip.crewQuality = currentOOBShip.crewQuality;
finalOOBShip.column = currentOOBShip.column;
finalOOBShip.row = currentOOBShip.row;
finalOOBShip.column2 = currentOOBShip.column2;
finalOOBShip.row2 = currentOOBShip.row2;
finalOOBShip.direction = currentOOBShip.direction;
因此，如果OOB对象具有相同shipClass的两个ship对象，那么shipDataSide1或shipDataSide2数组最终会丢失其中一个并且另一个副本丢失，这会在以后尝试绘制它们时混淆代码在屏幕上。
那我在这里做错了什么？我如何确保每次调用scenarioMasterObj.getShip（currentOOBShip.shipClass，currentOOBShip.country）时返回是一个“新鲜”对象而不是对现有对象的引用？经过一段时间的调试才弄明白发生了什么，我花了几个小时尝试试图绕过这个没有荒谬的蛮力方法，但没有运气。非常感谢帮助。
===========================更新=================== =========
我已经解决了这个问题，但是正如所指出的那样，这似乎是非常强大的力量，并且必须有一种更优雅的方式才能使其发挥作用。基本上我正在重新使用我们拉动“空白”船只的物体，因此每艘返回的船只与以前返回的任何船舶无关。
//After receiving the list of ships from getScenarioSideOOB(), game iterates through those lists calling this function to set up the game's master ship side arrays
public function getShip(shipClass:String, shipCountry:String) {
var returnShip:Object = new Object();
//bummer here is we have to know what classes exist, so if any are added code must change here as well
switch(shipCountry) {
case "GB":
switch(shipClass) {
case "GB_120_N":
var shipList_GB_Source:LOB_Ships_GB = new LOB_Ships_GB;
var shipList_GB = shipList_GB_Source.shipClasses_GB;
returnShip = shipList_GB.GB_120_N;
break;
case "GB_110_N":
var shipList_GB_Source:LOB_Ships_GB = new LOB_Ships_GB;
var shipList_GB = shipList_GB_Source.shipClasses_GB;
returnShip = shipList_GB.GB_110_N;
break;
case "GB_100_N":
var shipList_GB_Source:LOB_Ships_GB = new LOB_Ships_GB;
var shipList_GB = shipList_GB_Source.shipClasses_GB;
returnShip = shipList_GB.GB_100_N;
break;
case "GB_98_N":
var shipList_GB_Source:LOB_Ships_GB = new LOB_Ships_GB;
var shipList_GB = shipList_GB_Source.shipClasses_GB;
returnShip = shipList_GB.GB_98_N;
break;
答案 0 :(得分：0)
这很容易。您可以在getScenarioSideOOB()输出中为每艘船添加“已安装”服务参数，并最初将其分配给false。然后，当您调用scenarioMasterObj.getShip()时，它应该在OOB中的船上将installed设置为true，如果已经“安装”为真，则跳过匹配的船。
答案 1 :(得分：0)
如果没有人有更好的处理此类情况的建议，那么上述OP的更新中提供的答案必须有效。它的工作原理，当我知道某处有一个精确的工具时，就像使用大锤一样。