public Organism( Problem problem ) {
this.problem = problem;
root = new MathFunction();
}
static void Main( string[] args ) {
int generations = 0;
Problem problem = new Problem();
/*
problem.Cases.Add( new Case( 2, 2, 6.3 - 2 * 0.7 ) );
problem.Cases.Add( new Case( 1, 2, 2.3 - 1 * 0.7 ) );
problem.Cases.Add( new Case( 3, 1, 4.3 - 3 * 0.7 ) );
problem.Cases.Add( new Case( 1, 1, 0.3 - 1 * 0.7 ) );
problem.Cases.Add( new Case( 10, 10, 198.3 - 10 * 0.7 ) );
*/
problem.Cases.Add( new Case( 1, 2, ( 1 * 2 ) + 5 ) ); // 7
problem.Cases.Add( new Case( 2, 4, ( 2 * 4 ) + 5 ) ); // 13
problem.Cases.Add( new Case( 6, 6, ( 6 * 6 ) + 5 ) ); // 41
problem.Cases.Add( new Case( 18, 7, ( 18 * 7 ) + 5 ) ); // 131
List<Organism> organisms = new List<Organism>();
for( int i = 0; i < 20; i++ ) {
Organism organism = new Organism( problem );
organisms.Add( organism );
}
bool done = false;
double bestError = double.MaxValue;
double previousError = bestError;
Organism bestOrganism = null;
double minError = 0.000000000001;
double worstError = double.MinValue;
Organism worstOrganism = null;
while( done == false ) {
generations++;
foreach( Organism organism in organisms ) {
organism.Tick();
if( organism.Error < bestError ) {
bestError = organism.Error;
bestOrganism = organism;
}
if( organism.Error > worstError ) {
worstError = organism.Error;
worstOrganism = organism;
}
if( organism.Error < minError ) {
done = true;
break;
}
}
if( Tool.GetInt( 10 ) == 1 ) {
organisms.Remove( worstOrganism );
Organism clone = bestOrganism.Clone();
organisms.Add( clone );
} else if( Tool.GetInt( 30 ) == 1 ) {
organisms.Remove( worstOrganism );
int index = Tool.GetInt( organisms.Count );
Organism clone = organisms[ index ].Clone();
organisms.Add( clone );
} else if( Tool.GetInt( 100 ) == 1 ) {
organisms.Remove( worstOrganism );
int index = Tool.GetInt( organisms.Count );
Organism mother = bestOrganism;
Organism father = organisms[ index ];
Organism child = mother.MakeCrossOver( father );
organisms.Add( child );
}
worstOrganism = null;
worstError = double.MinValue;
if( bestError != previousError ) {
if( bestOrganism != null ) {
Console.ForegroundColor = ConsoleColor.White;
if( bestError / previousError < 0.95 )
Console.ForegroundColor = ConsoleColor.Red;
else if( bestError / previousError < 0.98 )
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine( "Current Error level {0} - {1}", bestError.ToString( "0.000000000000000" ), bestOrganism.ToString() );
Console.ForegroundColor = ConsoleColor.White;
}
previousError = bestError;
}
}
Console.WriteLine( "Generations: {0}", generations );
Console.WriteLine();
Console.WriteLine( "solved..." );
Console.WriteLine( bestOrganism );
Console.WriteLine();
Console.WriteLine( "Proof:" );
int oldLength = bestOrganism.ToString().Length;
foreach( Case currentCase in problem.Cases ) {
double res = bestOrganism.Evaluate( currentCase.X, currentCase.Y );
Console.WriteLine( "x = {0} , y = {1} , goal = {2} , actual = {3}", currentCase.X, currentCase.Y, currentCase.Result, res );
}
bestOrganism.Collapse();
while( true ) {
bestOrganism.Tick();
int l = bestOrganism.ToString().Length;
if( l < oldLength ) {
Console.WriteLine( bestOrganism.ToString() );
oldLength = l;
}
}
Console.ReadLine();
}