| public static CatmullRom ( Vector3 previous, Vector3 start, Vector3 end, Vector3 next, float elapsedTime ) : Vector3 | ||
| previous | Vector3 | |
| start | Vector3 | |
| end | Vector3 | |
| next | Vector3 | |
| elapsedTime | float | |
| return | Vector3 | |
public static Vector3 CatmullRom(Vector3 previous,Vector3 start, Vector3 end, Vector3 next, float elapsedTime) {
// References used:
// p.266 GemsV1
//
// tension is often set to 0.5 but you can use any reasonable value:
// http://www.cs.cmu.edu/~462/projects/assn2/assn2/catmullRom.pdf
//
// bias and tension controls:
// http://local.wasp.uwa.edu.au/~pbourke/miscellaneous/interpolation/
float percentComplete = elapsedTime;
float percentCompleteSquared = percentComplete * percentComplete;
float percentCompleteCubed = percentCompleteSquared * percentComplete;
/*return previous * (-0.5F*percentCompleteCubed +
percentCompleteSquared -
tension*percentComplete) +
start * ((2-tension) *percentCompleteCubed +
(tension - 3)*percentCompleteSquared + 1.0F) +
end * ((tension - 2)*percentCompleteCubed +
2.0F *percentCompleteSquared +
0.5F*percentComplete) +
next * (0.5F*percentCompleteCubed -
tension*percentCompleteSquared);*/
return
previous * (-0.5F*percentCompleteCubed +
percentCompleteSquared -
0.5F*percentComplete) +
start *
(1.5F*percentCompleteCubed +
-2.5F*percentCompleteSquared + 1.0F) +
end *
(-1.5F*percentCompleteCubed +
2.0F*percentCompleteSquared +
0.5F*percentComplete) +
next *
(0.5F*percentCompleteCubed -
0.5F*percentCompleteSquared);
}
public static Vector3 CatmullRomOLD(Vector3 previous, Vector3 start, Vector3 end, Vector3 next, float elapsedTime)
{
return(AstarSplines.CatmullRom(previous, start, end, next, elapsedTime));
}