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Howto:Start using vectors and hashes in Nasal: Difference between revisions
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Howto:Start using vectors and hashes in Nasal (view source)
Revision as of 21:36, 9 February 2012
, 9 February 2012no edit summary
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| Line 375: | Line 375: | ||
var waypoint5 = {parents:[waypoint1] }; | var waypoint5 = {parents:[waypoint1] }; | ||
</syntaxhighlight> | </syntaxhighlight> | ||
or using a vector for each object: | |||
<syntaxhighlight lang="php"> | |||
var waypoint = {number:1,altitude:2,distance:3,angle:4,length:5,ID:6,bearing:7}; | |||
var waypoints = [0,0,0,0,0]; # initialize the vector to set its size | |||
var waypoints[0] = {parents:[waypoint] }; | |||
var waypoints[1] = {parents:[waypoint] }; | |||
var waypoints[2] = {parents:[waypoint] }; | |||
var waypoints[3] = {parents:[waypoint] }; | |||
var waypoints[4] = {parents:[waypoint] }; | |||
</syntaxhighlight> | |||
or even, using a vector and a foreach loop: | |||
<syntaxhighlight lang="php"> | |||
var waypoint = {number:1,altitude:2,distance:3,angle:4,length:5,ID:6,bearing:7}; | |||
var waypoints = [0,0,0,0,0]; # initialize the vector to set its size | |||
foreach(var wpt; waypoints) { | |||
wpt = {parents:[waypoint] }; | |||
} | |||
</syntaxhighlight> | |||
Once we start using a hash as a template for other hashes using the "parents" vector, we are actually creating a class that is copied to each new hash. This new copy of the class is called an "object" after creation. | Once we start using a hash as a template for other hashes using the "parents" vector, we are actually creating a class that is copied to each new hash. This new copy of the class is called an "object" after creation. | ||