private void Reset()
{
Random rnd = new Random();
if (currentGameState == GameState.NeuralNet)
{
currentlyFlying = populationSize;
landingPosition = new Vector2(rnd.Next(Content.Load <Texture2D>("landing pad").Width / 2, graphics.PreferredBackBufferWidth - (Content.Load <Texture2D>("landing pad").Width / 2)), graphics.PreferredBackBufferHeight - 200);
boosterList = ANN.BreedNewGeneration(boosterList, initParams, eliteIndividuals, crossoverRate, crossover1Section, crossover2Section, mutationRate, numNewIndividuals, numEliteChildren);
}
else if (currentGameState == GameState.PlayerControlled)
{
boosterList.Clear();
boosterList.AddBooster(Content.Load <Texture2D>("booster"), (Vector2)initParams[0], (Vector2)initParams[1], (float)initParams[2], (float)initParams[3], (float)initParams[4], (float)initParams[5]);
}
generationComplete = false;
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
float deltaTime = (float)gameTime.ElapsedGameTime.TotalSeconds;
// TODO: Add your update logic here
var kstate = Keyboard.GetState();
var mstate = Mouse.GetState();
if (currentGameState != GameState.MainMenu)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.OemTilde))
{
currentGameState = GameState.MainMenu;
}
generationComplete = true;
foreach (Booster b in boosterList)
{
if (b.GetGameScore() == 0)
{
generationComplete = false;
double[] outputs = ANN.CalculateOutputs(b, ANN.CalculateHiddenValues(b));
if ((((currentGameState == GameState.NeuralNet) && (outputs[0] >= 0.5)) || ((currentGameState == GameState.PlayerControlled) && kstate.IsKeyDown(Keys.Up))) && b.GetFuel() > 0)
{
b.ChangeVelocity(new Vector2((float)(mainRocketThrust * Math.Sin(b.GetBoosterRotation()) * b.GetBoosterMass() * deltaTime), (float)(gravity * b.GetBoosterMass() - (mainRocketThrust * Math.Cos(b.GetBoosterRotation()) * b.GetBoosterMass())) * deltaTime));
b.ChangeFuel(fuelConsumption * deltaTime);
}
else if ((b.GetBoosterPosition().Y + (b.GetBoosterTexture().Height / 2)) < landingPosition.Y)
{
b.ChangeVelocity(new Vector2(0f, gravity * b.GetBoosterMass() * deltaTime));
}
if ((((currentGameState == GameState.NeuralNet) && (outputs[1] >= 0.5)) || ((currentGameState == GameState.PlayerControlled) && kstate.IsKeyDown(Keys.Left))) &&
b.GetMonopropellant() > 0 && ((b.GetBoosterPosition().Y + (b.GetBoosterTexture().Height / 2)) < landingPosition.Y))
{
angularAcceleration = (1 / 2 * gravity * b.GetBoosterMass() * Math.Sin(b.GetBoosterRotation()) - (directionalThrust * b.GetBoosterMass()));
angularAcceleration = angularAcceleration / (0.66 * b.GetBoosterMass() * 10);
b.ChangeAngVelocity(angularAcceleration * deltaTime);
b.ChangeMono(monoConsumption * deltaTime);
}
else if ((((currentGameState == GameState.NeuralNet) && (outputs[2] >= 0.5)) || ((currentGameState == GameState.PlayerControlled) && kstate.IsKeyDown(Keys.Right))) &&
b.GetMonopropellant() > 0 && ((b.GetBoosterPosition().Y + (b.GetBoosterTexture().Height / 2)) < landingPosition.Y))
{
angularAcceleration = (1 / 2 * gravity * b.GetBoosterMass() * Math.Sin(b.GetBoosterRotation()) + (directionalThrust * b.GetBoosterMass()));
angularAcceleration = angularAcceleration / (0.66 * b.GetBoosterMass() * 10);
b.ChangeAngVelocity(angularAcceleration * deltaTime);
b.ChangeMono(monoConsumption * deltaTime);
}
else
{
angularAcceleration = (1 / 2 * gravity * b.GetBoosterMass() * Math.Sin(b.GetBoosterRotation()));
angularAcceleration = angularAcceleration / (0.66 * b.GetBoosterMass() * 10);
b.ChangeAngVelocityMult((float)0.99);
b.ChangeAngVelocity(angularAcceleration * deltaTime);
}
if (b.GetFuel() < 0)
{
b.ChangeFuel(Math.Abs(b.GetFuel()));
}
if (b.GetMonopropellant() < 0)
{
b.ChangeMono(Math.Abs(b.GetMonopropellant()));
}
b.ChangeRotation(b.GetAngVelocity() * deltaTime);
b.ChangePosition(new Vector2(b.GetBoosterVelocity().X *deltaTime, b.GetBoosterVelocity().Y *deltaTime));
if ((b.GetBoosterPosition().Y + (b.GetBoosterTexture().Height / 2)) >= landingPosition.Y)
{
b.SetPositionY(landingPosition.Y - (b.GetBoosterTexture().Height / 2));
if ((b.GetBoosterVelocity().Y < 30f) && (b.GetBoosterVelocity().X < 30f) &&
(b.GetBoosterPosition().X > (landingPosition.X - landingTexture.Width / 2 + 20)) &&
(b.GetBoosterPosition().X < (landingPosition.X + landingTexture.Width / 2 - 20)) &&
Math.Abs(b.GetBoosterRotation()) < 0.1f)
{
successes++;
b.ChangeTint(Color.LightGreen);
}
b.ChangeGameScore(-Math.Abs(b.GetBoosterPosition().X - landingPosition.X));
b.ChangeGameScore(-b.GetBoosterVelocity().Y);
b.ChangeGameScore(-Math.Abs(b.GetBoosterVelocity().X));
b.ChangeGameScore(-Math.Abs((float)b.GetBoosterRotation() * 10));
b.ChangeGameScore(-((float)initParams[5] - b.GetFuel()));
b.ChangeGameScore(-((float)initParams[4] - b.GetMonopropellant()));
b.SetGameScore(1000 / Math.Abs(b.GetGameScore()));
b.SetVelocityX(0f);
}
}
}
if (generationComplete == true && kstate.IsKeyDown(Keys.Enter))
{
Reset();
}
else if (generationComplete == true)
{
if (currentGameState == GameState.NeuralNet)
{
float closestBoosterDist = 10000;
successes = 0;
bestGameScoreLastGen = 0;
stagnantCtr++;
foreach (Booster b in boosterList)
{
if (Math.Abs(b.GetBoosterPosition().X - landingPosition.X) < closestBoosterDist)
{
closestBoosterDist = Math.Abs(b.GetBoosterPosition().X - landingPosition.X);
}
if (b.GetGameScore() > bestGameScoreLastGen)
{
bestGameScoreLastGen = b.GetGameScore();
}
if (b.GetGameScore() > highestGameScore)
{
stagnantCtr = 0;
highestGameScore = b.GetGameScore();
}
}
using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"D:\Programs\SpaceX Neural Net\neuralnetstats.txt", true))
{
file.WriteLine(closestBoosterDist + "," + bestGameScoreLastGen + "," + highestGameScore + "," + successes);
}
if (generation > 1)
{
for (int i = 0; i < eliteIndividuals; i++)
{
Debug.Print("Elite individual " + (i + 1) + " landed the next round with a position of " + boosterList[i].GetBoosterPosition().X + ", a y-velocity of " + boosterList[i].GetBoosterVelocity().Y +
", a rotation of " + boosterList[i].GetBoosterRotation() + ", with " + boosterList[i].GetFuel() + " fuel left and " + boosterList[i].GetMonopropellant() + " mono left, with a score of " + boosterList[i].GetGameScore() +
"and weights1 of " + boosterList[i].GetWeights1()[0, 0] + ", " + boosterList[i].GetWeights1()[0, 1] + ", " + boosterList[i].GetWeights1()[0, 2] + ", " + boosterList[i].GetWeights1()[0, 3] + ", " + boosterList[i].GetWeights1()[0, 4]);
}
}
generation++;
Reset();
}
}
}
else
{
if (btnPlayer.isClicked)
{
currentGameState = GameState.PlayerControlled;
boosterList.Clear();
boosterList.AddBooster(Content.Load <Texture2D>("booster"), (Vector2)initParams[0], (Vector2)initParams[1], (float)initParams[2], (float)initParams[3], (float)initParams[4], (float)initParams[5]);
}
btnPlayer.Update(mstate);
if (btnNeural.isClicked)
{
currentGameState = GameState.NeuralNet;
boosterList.Clear();
for (int i = 0; i < populationSize; i++)
{
boosterList.AddBooster(Content.Load <Texture2D>("booster"), (Vector2)initParams[0], (Vector2)initParams[1], (float)initParams[2], (float)initParams[3], (float)initParams[4], (float)initParams[5]);
}
}
btnNeural.Update(mstate);
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
}
base.Update(gameTime);
}