/*
        AUTOMATICALLY GENERATED BY jTemp FROM
        /Users/jon/Work/openimaj/tags/openimaj-1.3.1/content/animation/src/main/jtemp/org/openimaj/content/animation/animator/#TT#ArrayValueAnimator.jtemp
*/
/**
 * Copyright (c) 2011, The University of Southampton and the individual contributors.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *   *  Redistributions of source code must retain the above copyright notice,
 *      this list of conditions and the following disclaimer.
 *
 *   *  Redistributions in binary form must reproduce the above copyright notice,
 *      this list of conditions and the following disclaimer in the documentation
 *      and/or other materials provided with the distribution.
 *
 *   *  Neither the name of the University of Southampton nor the names of its
 *      contributors may be used to endorse or promote products derived from this
 *      software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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 */
package org.openimaj.content.animation.animator;

/**
 * A {@link ValueAnimator} capable of producing double arrays from
 * a set of potentially independent underlying {@link ValueAnimator}s. 
 * 
 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
 */
public class DoubleArrayValueAnimator implements ValueAnimator<double[]> {
        ValueAnimator<Double> [] animators;
        
        /**
         * Construct from an array of {@link ValueAnimator}s
         * @param animators the animators
         */
        public DoubleArrayValueAnimator(ValueAnimator<Double>... animators) {
                this.animators = animators;
        }
        
        /**
         * Construct a new DoubleArrayValueAnimator from an array of 
         * values using {@link LinearDoubleValueAnimator}s with the 
         * range -max to +max and the given duration.
         * 
         * @param duration the duration of the underlying animators 
         * @param maxs max distance from 0 (+/-)
         * @return new {@link DoubleArrayValueAnimator}
         */
        @SuppressWarnings("unchecked")
        public static DoubleArrayValueAnimator makeLinear(int duration, double... maxs) {
                ValueAnimator<Double> [] animators = new ValueAnimator[maxs.length];
                
                for (int i=0; i<maxs.length; i++)
                        animators[i] = new LinearDoubleValueAnimator((double)(-maxs[i]), maxs[i], duration);
                
                return new DoubleArrayValueAnimator(animators);
        }
        
        /**
         * Construct a new DoubleArrayValueAnimator from count 
         * {@link LinearDoubleValueAnimator}s with the given start 
         * and finish values, and the given duration.
         * 
         * @param duration the duration
         * @param count the number of animators
         * @param start the starting value
         * @param finish the finishing value
         * @return new {@link DoubleArrayValueAnimator}
         */
        @SuppressWarnings("unchecked")
        public static DoubleArrayValueAnimator makeLinear(int duration, int count, double start, double finish) {
                ValueAnimator<Double> [] animators = new ValueAnimator[count];
                
                for (int i=0; i<count; i++)
                        animators[i] = new LinearDoubleValueAnimator(start, finish, duration);
                
                return new DoubleArrayValueAnimator(animators);
        }
        
        /**
         * Construct a new DoubleArrayValueAnimator from an array of 
         * values using {@link RandomLinearDoubleValueAnimator}s with the 
         * range -max to +max and the given duration.
         * 
         * @param duration the duration of the underlying animators 
         * @param maxs max distance from 0 (+/-)
         * @return new {@link DoubleArrayValueAnimator}
         */
        @SuppressWarnings("unchecked")
        public static DoubleArrayValueAnimator makeRandomLinear(int duration, double... maxs) {
                ValueAnimator<Double> [] animators = new ValueAnimator[maxs.length];
                
                for (int i=0; i<maxs.length; i++)
                        animators[i] = new RandomLinearDoubleValueAnimator((double)(-maxs[i]), maxs[i], duration);
                
                return new DoubleArrayValueAnimator(animators);
        }
        
        /**
         * Construct a new DoubleArrayValueAnimator from count 
         * {@link RandomLinearDoubleValueAnimator}s with the given start 
         * and finish values, and the given duration.
         * 
         * @param duration the duration
         * @param count the number of animators
         * @param start the starting value
         * @param finish the finishing value
         * @return new {@link DoubleArrayValueAnimator}
         */
        @SuppressWarnings("unchecked")
        public static DoubleArrayValueAnimator makeRandomLinear(int duration, int count, double start, double finish) {
                ValueAnimator<Double> [] animators = new ValueAnimator[count];
                
                for (int i=0; i<count; i++)
                        animators[i] = new RandomLinearDoubleValueAnimator(start, finish, duration);
                
                return new DoubleArrayValueAnimator(animators);
        }
        
        @Override
        public double[] nextValue() {
                double[] value = new double[animators.length];
                
                for (int i=0; i<animators.length; i++)
                        value[i] = animators[i].nextValue();
                
                return value;
        }

        @Override
        public boolean hasFinished() {
                for (ValueAnimator<Double> a : animators) {
                        if (!a.hasFinished())
                                return false;
                }
                return true;
        }

        @Override
        public void reset() {
                for (ValueAnimator<Double> animator : animators)
                        animator.reset();
        }
}