Difference between revisions of "Oolite JavaScript Reference: SystemInfo"
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Eric Walch (talk | contribs) (Added systemsInRange) |
Eric Walch (talk | contribs) m (→coordinates) |
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=== <code>coordinates</code> === |
=== <code>coordinates</code> === |
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'''coordinates''' : Vector (read-only) |
'''coordinates''' : Vector (read-only) |
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− | The coordinates of the system in light years. e.g. for Lave: <code>(8, |
+ | The coordinates of the system in light years. e.g. for Lave: <code>(8, 34.6, 0)</code>. The z component is always zero. |
=== <code>galaxyID</code> === |
=== <code>galaxyID</code> === |
Revision as of 15:55, 30 January 2010
Prototype: Object
This class was added in Oolite test release 1.74.
SystemInfo
objects provide information about a specific system.
Contents
Properties
coordinates
coordinates : Vector (read-only)
The coordinates of the system in light years. e.g. for Lave: (8, 34.6, 0)
. The z component is always zero.
galaxyID
galaxyID : Number (read/write nonnegative integer)
The ID number of the galaxy.
systemID
systemID : Number (read/write nonnegative integer)
The ID number of the system.
Methods
distanceToSystem
function distanceToSystem(SystenInfo) : Number
Returns the distance in light year to the other SystemInfo.
systemsInRange
function systemsInRange(Number) : Array
Returns an array of SystemInfos in range. When no distance is defined, 7 is assumed.
Static methods
filteredSystems
function filteredSystems(this : Object, predicate : Function ) : Array of SystemInfo
A list of the SystemInfos for which predicate
returns true
.
Example:
SystemInfo.systemsInRange = function(range) { if (range === undefined) { range = 7; } var thisSystem = system.info; return SystemInfo.filteredSystems(this, function(other) { return (other !== thisSystem) && (thisSystem.distanceToSystem(other) <= range); }); }