view game/Interpolate.java @ 151:d6d92845d6a2

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author Matti Hamalainen <ccr@tnsp.org>
date Wed, 06 Feb 2013 10:23:28 +0200
parents 4c0dec72e2f0
children
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/*
 * Class for smooth non-linear interpolation between two given values in N steps
 * (C) Copyright 2011 Matti 'ccr' Hämäläinen <ccr@tnsp.org>
 */
package game;

import java.util.*;

public class Interpolate
{
    public float start, end, steps;

    public Interpolate(float start, float end, float steps)
    {
        this.start = start;
        this.end = end;
        this.steps = steps;
    }

    public float getValue(float step)
    {
        float n = step / steps;
        float v = n * n * (3.0f - 2.0f * n);
        return (start * v) + (end * (1.0f - v));
    }
}