Howto:Start using vectors and hashes in Nasal: Difference between revisions

Howto:Start using vectors and hashes in Nasal (view source)

203 bytes added , 7 February 2012

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-Now, this is fairly repetitive and not overly scalable, because the variable names are hard coded and need to be changed in a lot of places in the source code. So, it would be better to use a vector of waypoints instead. A vector is a list of things (variables) that can be easily accessed using an index into the vector. Pretty much like an array in C or C++, with the added advantage that the vector can be dynamically resized, e.g. using the setsize() library call. Consider the following example:
+Now, this is fairly repetitive and not overly scalable, because the variable names are hard coded and need to be changed in a lot of places in the source code.
+Just imagine we'd need to support more than just 5 waypoints, like maybe 10, 20, 50 or maybe even 1000 waypoints. As you can see, this method is very inflexible, complicated, tedious and error-prone.
+So, it would be better to use a vector of waypoints instead. A vector is a list of things (variables) that can be easily accessed using an index into the vector. Pretty much like an array in C or C++, with the added advantage that the vector can be dynamically resized, e.g. using the setsize() library call. Consider the following example: