Difference between revisions of "HPL3/SOMA/Scripting/cVector2f"
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(Created page with "A two dimensional vector unit. ==Fields== {| class="wikitable" ! Field Name !! Type !! Description |- | x || <syntaxhighlight lang="c++" inline>float</syntaxhighlight> || Th...") |
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| − | A two dimensional vector unit. | + | A two dimensional vector unit whose elements are stored as floats. |
==Fields== | ==Fields== | ||
Revision as of 02:30, 4 August 2020
A two dimensional vector unit whose elements are stored as floats.
Contents
Fields
| Field Name | Type | Description |
|---|---|---|
| x | float |
The x value of the vector. |
| y | float |
The y value of the vector. |
Functions
| Return Type | Function Name | Parameters | Description |
|---|---|---|---|
float |
GetElement | uint64 alIdx, |
Gets the value at the given index. (Indices 0 and 1 are equal to x and y, respectively.) |
float |
Length | Returns the length of this vector. | |
float |
Normalize | Returns the normalization factor for this vector. (See Remarks.) | |
void |
SetElement | uint64 alIdx,float, |
Sets the value at the given index to the given value. (Indices 0 and 1 are equal to x and y, respectively.) |
float |
SqrLength | Returns the length-squared of this vector. |
Remarks
A normalized vector is a vector whose length is equal to one, otherwise known as a unit vector. To convert a vector into a unit vector, get the normalization factor by calling the Normalize function, then divide each of the vector's x and y coordinates by that factor.
cVector2f vBaseVector(2.0, 5.0);
float fNormFactor = vBaseVector.Normalize();
cVector2f vNormalizedVector(vBaseVector.x / fNormFactor,
vBaseVector.y / fNormFactor);