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Made use of ECMAScript 5 meta-stuff; methods defined in prefix header are now non-enumerable and non-writeable just like native ones.

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git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@4016 127b21dd-08f5-0310-b4b7-95ae10353056
This commit is contained in:
Jens Ayton 2011-01-06 12:05:16 +00:00
parent 62f35e872c
commit 926b2f81ea
2 changed files with 68 additions and 43 deletions
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2
DebugOXP/Resources/oolite-debug-console.js
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@ -306,7 +306,7 @@ this.prettifyArray = function prettifyArray(value, indent)
this.prettifyObject = function prettifyObject(value, indent)
{
indent = indent || "";
var subIndent = indent + "\t";
var subIndent = indent + " ";
var appendedAny = false;
var result = "{";

37
Resources/Scripts/oolite-global-prefix.js
View File

@ -53,11 +53,16 @@ this.version = "1.75";
/**** Utilities, not intended to be retired ****/
// Ship.spawnOne(): like spawn(role, 1), but returns the ship rather than an array.
Object.getPrototypeOf(Ship).spawnOne = function Ship_spawnOne(role)
Object.defineProperty(Object.getPrototypeOf(Ship), "spawnOne",
{
value: function Ship_spawnOne(role)
{
var result = this.spawn(role, 1);
return result ? result[0] : null;
};
},
writable: false,
enumerable: false
});
// mission.addMessageTextKey(): load mission text from mission.plist and append to mission screen or info screen.
@ -70,7 +75,9 @@ mission.addMessageTextKey = function mission_addMessageTextKey(textKey)
/* SystemInfo.systemsInRange(): return SystemInfos for all systems within a
certain distance.
*/
SystemInfo.systemsInRange = function SystemInfo_systemsInRange(range)
Object.defineProperty(SystemInfo, "systemsInRange",
{
value: function SystemInfo_systemsInRange(range)
{
if (range === undefined)
{
@ -98,7 +105,10 @@ SystemInfo.systemsInRange = function SystemInfo_systemsInRange(range)
{
return (other.systemID !== thisSystem.systemID) && (thisSystem.distanceToSystem(other) <= range);
});
};
},
writable: false,
enumerable: false
});
/* system.scrambledPseudoRandom(salt : Number (integer)) : Number
@ -115,7 +125,9 @@ SystemInfo.systemsInRange = function SystemInfo_systemsInRange(range)
system.scrambledPseudoRandomNumber() with different salt values, there will
be no obvious correlation between the different stations’ distributions.
*/
system.scrambledPseudoRandomNumber = function system_scrambledPseudoRandomNumber(salt)
Object.defineProperty(system, "scrambledPseudoRandomNumber",
{
value: function system_scrambledPseudoRandomNumber(salt)
{
// Convert from float in [0..1) with 24 bits of precision to integer.
var n = Math.floor(system.pseudoRandomNumber * 16777216.0);
@ -130,11 +142,24 @@ system.scrambledPseudoRandomNumber = function system_scrambledPseudoRandomNumber
// Convert from (effectively) 32-bit signed integer to float in [0..1).
return n / 4294967296.0 + 0.5;
};
},
writable: false,
enumerable: false
});
/**** Built-in in ECMAScript 5, to be removed when Linux builds transition ****/
// Object.defineProperty: only value key is supported. Getter and setter are possible, but not required.
if (typeof Object.defineProperty !== "function")
{
Object.defineProperty = function (object, name, definition)
{
object[name] = definition.value;
}
}
// Object.getPrototypeOf(): ECMAScript 5th Edition eqivalent to __proto__ extension.
if (typeof Object.getPrototypeOf !== "function")
{