Package codechicken.lib.math

Class InterpHelper

java.lang.Object

codechicken.lib.math.InterpHelper

public class InterpHelper
extends Object

Constructor Summary

Constructors

Constructor	Description
InterpHelper()

Method Summary

Modifier and Type	Method	Description
float	interpolate(float q0, float q1, float q2, float q3)	Interpolates using the already computed coefficients.
void	locate(float x, float y)	Computes the coefficients for the interpolation.
void	reset(float dx0, float dy0, float dx1, float dy1, float dx2, float dy2, float dx3, float dy3)	Resets the interp helper with the given quad.
void	setup()	Call when you are ready to use the InterpHelper.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

InterpHelper

public InterpHelper()

Method Details

reset

public void reset(float dx0,
 float dy0,
 float dx1,
 float dy1,
 float dx2,
 float dy2,
 float dx3,
 float dy3)

Resets the interp helper with the given quad. Does not care what order the vertices are in.

setup

public void setup()

Call when you are ready to use the InterpHelper.

locate

public void locate(float x,
 float y)

Computes the coefficients for the interpolation.

Parameters:

x - X interp location.

y - Y interp location.

interpolate

public float interpolate(float q0,
 float q1,
 float q2,
 float q3)

Interpolates using the already computed coefficients.

Parameters:

q0 - Value at dx0 dy0

q1 - Value at dx1 dy1

q2 - Value at dx2 dy2

q3 - Value at dx3 dy3

Returns:

The result.