private Image RenderTurn(ExperimentTurn turn)
{
var sqlConnection = this.databaseConnector.OpenSqlConnection();
var turnOrganismStates = sqlConnection.GetTurnOrganismStates(turn.Id).ToDictionary(state => state.Position);
var bitmap = new Bitmap(AlienSpaceVector.WorldWidth * CellSize, AlienSpaceVector.WorldHeight * CellSize);
var graphics = Graphics.FromImage(bitmap);
var sunBrush = new SolidBrush(Color.Yellow);
for (var x = 0; x < AlienSpaceVector.WorldWidth; x++)
{
for (var y = 0; y < AlienSpaceVector.WorldHeight; y++)
{
var position = new AlienSpaceVector(x, y);
var distanceFromSun = AlienSpaceVector.GetCoordinateDelta(position, turn.SunPosition).Abs();
if (distanceFromSun < Experiment.SunRadius)
{
graphics.FillRectangle(sunBrush, x * CellSize, y * CellSize, CellSize, CellSize);
}
if (turnOrganismStates.ContainsKey(position))
{
var state = turnOrganismStates[position];
var organismBrush = new SolidBrush(Color.FromArgb(ScaleColorComponent(state.Red), ScaleColorComponent(state.Green), ScaleColorComponent(state.Blue)));
graphics.FillEllipse(organismBrush, x * CellSize, y * CellSize, CellSize, CellSize);
}
}
}
return(bitmap);
}
public void CloseTogether()
{
var vector1 = new AlienSpaceVector(5, 5);
var vector2 = new AlienSpaceVector(7, 3);
var result1 = AlienSpaceVector.GetCoordinateDelta(vector1, vector2);
this.Expect(result1.X, this.EqualTo(-2));
this.Expect(result1.Y, this.EqualTo(2));
var result2 = AlienSpaceVector.GetCoordinateDelta(vector2, vector1);
this.Expect(result2.X, this.EqualTo(2));
this.Expect(result2.Y, this.EqualTo(-2));
}
public void CatyCorner()
{
var vector1 = new AlienSpaceVector(0, 0);
var vector2 = new AlienSpaceVector(63, 35);
var result1 = AlienSpaceVector.GetCoordinateDelta(vector1, vector2);
this.Expect(result1.X, this.EqualTo(1));
this.Expect(result1.Y, this.EqualTo(1));
var result2 = AlienSpaceVector.GetCoordinateDelta(vector2, vector1);
this.Expect(result2.X, this.EqualTo(-1));
this.Expect(result2.Y, this.EqualTo(-1));
}
public void SimulateSingleTurn(long experimentId)
{
if (!this.databaseConnector.DatabaseHasBeenPinged)
{
throw new InvalidOperationException("Cannot run simulation without having pinged the database.");
}
//try {
using (var sqlConnection = this.databaseConnector.OpenSqlConnection()) {
var experimentStatus = sqlConnection.GetExperimentStatus(experimentId);
var existingOrganismStates = experimentStatus.LatestExperimentTurnId == null ? new OrganismState[0] : sqlConnection.GetTurnOrganismStates(experimentStatus.LatestExperimentTurnId.Value);
var newExperimentTurn = BuildNextExperimentTurn(experimentStatus);
var random = new Random(newExperimentTurn.RandomSeed);
var newOrganismStates = existingOrganismStates
.ToDictionary(organismState => organismState.OrganismId,
existingOrganismState => new OrganismState {
OrganismId = existingOrganismState.OrganismId,
Position = existingOrganismState.Position,
Health = existingOrganismState.Health,
});
foreach (var existingOrganismState in newOrganismStates.Values.OrderBy(state => state.OrganismId).ToArray())
{
// TODO: Think first
ReleaseEnergy(newExperimentTurn, existingOrganismState, Experiment.HungerRate);
var isInSun = AlienSpaceVector.GetCoordinateDelta(existingOrganismState.Position, newExperimentTurn.SunPosition).Abs() < Experiment.SunRadius;
if (isInSun)
{
AbsorbEnergy(newExperimentTurn, existingOrganismState, Experiment.SunEnergyGift);
}
if (existingOrganismState.Health <= 0)
{
newOrganismStates.Remove(existingOrganismState.OrganismId);
}
}
var numberOfOrganismsToCreate = Math.Min((int)newExperimentTurn.ExtraEnergy, Experiment.MaxBirthRate);
newExperimentTurn.ExtraEnergy -= numberOfOrganismsToCreate;
var newPositions = allPoints
.Except(newOrganismStates.Values.Select(state => state.Position))
.Randomize(random)
.Take(numberOfOrganismsToCreate);
foreach (var newPosition in newPositions)
{
var newOrganism = new Organism {
Red = 0,
Green = 1,
Blue = 0,
};
sqlConnection.SaveOrganism(newOrganism);
newOrganismStates[newOrganism.Id] = new OrganismState {
OrganismId = newOrganism.Id,
Position = newPosition,
Health = 1,
};
}
sqlConnection.SaveExperimentTurn(newExperimentTurn);
foreach (var organismState in newOrganismStates.Values)
{
organismState.ExperimentTurnId = newExperimentTurn.Id;
sqlConnection.SaveOrganismState(organismState);
}
}
//} catch (Exception e) {
//}
}