/*******************************************************************************
 * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.proconf.g3d.animation;

import com.jme.renderer.ColorRGBA;
import com.jme.scene.state.MaterialState;

public class ChanneledColorInterpolator implements Interpolator {
    private ScalarInterpolator rInterpolator;
    private ScalarInterpolator gInterpolator;
    private ScalarInterpolator bInterpolator;
    
    //Material m = null;
    MaterialState m = null;
    int type = 1;
    
    public static final int AMBIENT = 0;
    public static final int DIFFUSE = 1;
    public static final int SPECULAR = 2;
    public static final int EMISSIVE = 3;
    
    
    public ChanneledColorInterpolator(ScalarInterpolator rInterpolator, ScalarInterpolator gInterpolator, ScalarInterpolator bInterpolator) {
        this.rInterpolator = rInterpolator;
        this.gInterpolator = gInterpolator;
        this.bInterpolator = bInterpolator;
    }
    
    public void interpolate(double delta) {
        double r = rInterpolator.evaluate(delta);
        double g = gInterpolator.evaluate(delta);
        double b = bInterpolator.evaluate(delta);

        ColorRGBA c = new ColorRGBA((float)r, (float)g, (float)b,0.f);
        switch (type) {
        case AMBIENT : 
            m.setAmbient(c);
            break;
        case DIFFUSE:
            m.setDiffuse(c);
            break;
        case SPECULAR:
            m.setSpecular(c);
            break;
        case EMISSIVE:
            m.setEmissive(c);
            break;
        }
    }
    
    public void setTarget(Object target) {
       // m = (Material)target;
    	 m = (MaterialState)target;
    }
    
    public void setType(int type) {
        this.type = type;
    }

}