Exemple #1
0
        //private void evaluateFitness(CAState state)
        //{
        //    CAState temp0 = new CAState();
        //    CAState temp1 = new CAState();
        //    temp0.copyFrom(state);
        //    for (int k=0; k<period; ++k)
        //    {
        //        rule_set.getTransition(temp0, temp1);
        //        temp0.copyFrom(temp1);
        //    }
        //    float oscillatorness = 1.0f - temp0.getDifference(state);


        //    //float density = (float)(population[j].numberOfLiveCells()) / (CAState.Width * CAState.Height);
        //    int nas = state.numberOfLiveCells();
        //    int min_nas = 20;
        //    float density = (nas > min_nas) ? 1.0f : nas / min_nas;

        //    float t = 0.75f;
        //    state.fitness = t * oscillatorness + (1.0f - t) * density;
        //}



        // no state should look more like the first than the end state
        private void evaluateFitness(CAState state)
        {
            float   oscillatorness = 0.0f;
            CAState temp0          = new CAState(state);
            CAState temp1          = new CAState(state);

            float[] f = new float[period];
            for (int k = 0; k < period; ++k)
            {
                rule_set.getTransition(temp0, temp1);
                temp0.copyFrom(temp1);

                f[k]            = fitness_weights[k] * (1.0f - temp0.getRelativeDifference(state));
                oscillatorness += f[k];
            }

            float final_difference = temp0.getRelativeDifference(state);

            if (final_difference == 0)
            {
                state.fitness = 1.0f;
                return;
            }

            //oscillatorness = 1.0f - final_difference;

            //float oscillatorness = Math.Max(0, 1.0f - final_difference - 20*(final_difference - min_difference));
            //if (final_difference == min_difference)
            //{
            //    oscillatorness = 1.0f - final_difference + (final_difference - min_difference);
            //}
            //else
            //{
            //    oscillatorness = Math.Max(1.0f - 10.0f*min_difference, 0);
            //}



            //float density = (float)(population[j].numberOfLiveCells()) / (CAState.Width * CAState.Height);
            int   nas     = state.numberOfLiveCells();
            int   min_nas = 20;
            float density = (nas > min_nas) ? 1.0f : nas / min_nas;

            float t = 0.8f;

            state.fitness = t * oscillatorness + (1.0f - t) * density;
        }
Exemple #2
0
        public int getPeriod(CAState a)
        {
            CAState b = new CAState(a);
            CAState c = new CAState(a);

            for (int i = 0; i < 1000; ++i)
            {
                getTransition(b, c);
                b.copyFrom(c);
                if (b.getRelativeDifference(a) == 0)
                {
                    return(i + 1);
                }
            }
            return(0);
        }
Exemple #3
0
        public static void printOscillator(CAState c, CARuleSet rule_set)
        {
            CAState temp0 = new CAState(c);
            CAState temp1 = new CAState(c);

            while (true)
            {
                Console.WriteLine(temp0.ToString());
                Console.WriteLine();
                rule_set.getTransition(temp0, temp1);
                if (temp1.getRelativeDifference(c) == 0)
                {
                    break;
                }
                temp0.copyFrom(temp1);
            }
        }
Exemple #4
0
        public static void saveImages(CAState c, CARuleSet rule_set, String path)
        {
            CAState temp0 = new CAState(c);
            CAState temp1 = new CAState(c);
            int     i     = 0;

            while (true)
            {
                Bitmap image = temp0.toImage(c.Width * 100, c.Height * 100);
                image.Save(path + "/" + i + ".bmp");
                rule_set.getTransition(temp0, temp1);
                if (temp1.getRelativeDifference(c) == 0)
                {
                    break;
                }
                temp0.copyFrom(temp1);
                ++i;
            }
        }