public void calcDeersFear() //change all deer fear, if threat is low then dont update fear
{
if (game.lion.visible == true)
{
for (int i = 0; i < deers.Count; ++i)
{
Deer d = (Deer)deers[i];
Vector2 dirFromLion = (d.Position - game.lion.Position);
float distance = dirFromLion.Length();
if (distance < 100)
{
d.addFear(100);
}
else if (distance < 250) //if the lion is within a distance ///////////////////
{
float fear = 250 / distance; //200/dist so 1 to 200 counts (hopefully works right)
d.addFear(fear * .6f); // did this because fear goes up waay to quick
//deers[i].addFear(game.lion.Velocity.Length());
}
else if (distance > 300)//created a deadzone inbetween, like alert zone
{
deers[i].decayFear();
}
}
for (int i = 0; i < deers.Count; ++i)
{
if (deers[i].neighbors.Count > 0) //if deer has fear greater than 20, and has neighbors
{
for (int j = 0; j < deers[i].neighbors.Count; ++j)
{
avgFear += deers[i].neighbors[j].fear;
//loop through them and add deer[i]'s fear to them
// deers[j].addFear(fear);
}
avgFear /= deers[i].neighbors.Count;
//avgFear *= .3f;
if (deers[i].fear > avgFear)
{
deers[i].addFear(-avgFear);
}
else
{
deers[i].addFear(avgFear);
}
}
avgFear = 0;
}
}
else
{
for (int i = 0; i < deers.Count; ++i)
{
deers[i].decayFear();
}
}
}
public void CreateDeer(int deerCt, Texture2D deerImg)
{
for (int i = 0; i < deerCt; ++i)
{
Deer deerTmp = new Deer(game, deerImg, new Vector2((float)Game.r.NextDouble() * Game.bounds.Width, (float)Game.r.NextDouble() * Game.bounds.Height));
deers.Add(deerTmp);
deerCount++;
AttatchNewDeerFSM(deerTmp, game);
}
}
public void Update(SteeringOutput steering, GameTime time, Game game)
{
newState = Keyboard.GetState();
bool keyPressed = false;
if (game.playerHunter.health > 0 && game.playerHunter.spearJab == false && game.playerHunter.spearThrow == false)
{
if (Game.keyboard.IsKeyDown(Keys.A))
{
velocity.X -= maxAcceleration;
keyPressed = true;
}
if (Game.keyboard.IsKeyDown(Keys.D))
{
velocity.X += maxAcceleration;
keyPressed = true;
}
if (Game.keyboard.IsKeyDown(Keys.W))
{
velocity.Y -= maxAcceleration;
keyPressed = true;
}
if (Game.keyboard.IsKeyDown(Keys.S))
{
velocity.Y += maxAcceleration;
keyPressed = true;
}
}
if (game.playerHunter.spearJab == true || game.playerHunter.spearThrow == true)
{
for (int i = 0; i < game.deerManager.GetDeerCount(); i++)
{
Deer d = (Deer)game.deerManager.deers[i];
dirFromSpear = (d.Position - this.Position);
float distance = dirFromSpear.Length();
if (distance < 30)
{
game.deerManager.KillDeer(d);
game.playerHunter.spearJab = false;
game.playerHunter.spearThrow = false;
break;
}
}
float distStoL = (game.lion.Position - this.Position).Length();
if (distStoL < 30)
{
if (game.playerHunter.spearJab)
{
game.lion.health -= 2;
game.playerHunter.spearJab = false;
}
if (game.playerHunter.spearThrow)
{
game.lion.health -= 1;
game.playerHunter.spearThrow = false;
}
}
}
if (game.playerHunter.spearJab && game.playerHunter.health > 0)
{
keyPressed = true;
getPosition = this.position;
Vector2 movement = game.playerHunter.Velocity;
movement.X += 12 * (float)Math.Cos(game.playerHunter.orientation);
movement.Y += (12 * (float)Math.Sin(game.playerHunter.orientation));
move += 3;
if (move < jabDistance)
{
this.position = getPosition;
this.position.X += ((int)movement.X);
this.position.Y += ((int)movement.Y);
}
else
{
this.position = game.playerHunter.Position;
this.position.X += 40;
this.position.Y -= 20;
move = 0;
game.playerHunter.spearJab = false;
}
}
if (game.playerHunter.spearThrow && game.playerHunter.health > 0)
{
//game.playerHunter.spearThrow = true;
Vector2 movement = Vector2.Zero;
getPosition = this.position;
movement = game.playerHunter.throwVelocity;
movement.X += 8 * (float)Math.Cos(game.playerHunter.throwOrientation);
movement.Y += (8 * (float)Math.Sin(game.playerHunter.throwOrientation));
keyPressed = true;
move += 4;
if (move < throwDistance)
{
this.position = getPosition;
this.position.X += ((int)movement.X);
this.position.Y += ((int)movement.Y);
}
else
{
this.position = game.playerHunter.Position;
this.position.X += 40;
this.position.Y -= 20;
move = 0;
game.playerHunter.spearThrow = false;
}
}
if (!keyPressed)
{
this.position = game.playerHunter.Position;
this.position.X += 40;
this.position.Y -= 20;
velocity = new Vector2();
}
if (velocity.Length() > MaxSpeed)
{
velocity.Normalize();
velocity *= maxSpeed;
}
base.Update(steering, time);
//position += velocity;
//orientation += rotation;
collide.position.X += (float)((((image.Height - 5) / 2) * Math.Cos(this.orientation)));
collide.position.Y += (float)(((image.Height - 5) / 2) * Math.Sin(this.orientation));
}
private void AttatchNewDeerFSM(Deer deer, Game game)
{
//Declaring Actions for states
ScaredAction scaredAction = new ScaredAction();
WanderAction wanderAction = new WanderAction();
GrazeAction grazeAction = new GrazeAction();
//FleeFromLionAction fleeFromLionAction = new FleeFromLionAction();
//FleeFromHunterAction fleeFromHunterAction = new FleeFromHunterAction();
DeerFleeAction deerFleeAction = new DeerFleeAction();
resetWander resetWander = new resetWander();
emptyAction emptyAction = new emptyAction();
FlockAction flockAction = new FlockAction();
//Declaring States for FSM
State scaredState = new State("scared", scaredAction);
State wanderState = new State("wander", emptyAction, wanderAction, resetWander);
State grazeState = new State("graze", grazeAction);
State fleeState = new State("flee", deerFleeAction);
//fleeState.AddActions();
State flockState = new State("flock", flockAction);
//Declaring conditions used for transitions
FearGreaterThan fearGreaterThan80 = new FearGreaterThan(80);
FearGreaterThan fearGreaterThan60 = new FearGreaterThan(60);
FearLessThan fearLessThan40 = new FearLessThan(40);
FearLessThan fearLessThan20 = new FearLessThan(20);
ThreatLevel hunterHighThreatLevel = new ThreatLevel(75f);
DistanceToHunter distanceToHunter = new DistanceToHunter(200f);
AndCondition andThreatDistanceHunter = new AndCondition(hunterHighThreatLevel, distanceToHunter);
OrCondition orFearThreat = new OrCondition(fearGreaterThan60, andThreatDistanceHunter);
NeighborCountGreaterCondition neighborCountGreater = new NeighborCountGreaterCondition(5);
NeighborCountLessCondition neighborCountLess = new NeighborCountLessCondition(2);
RandomTimerCondition fleetoScaredTimer = new RandomTimerCondition(initialTime, 600);
RandomTimerCondition wandertoGrazeTimer = new RandomTimerCondition(initialTime, shortTimer);//800 to 1200
RandomTimerCondition flocktoGrazeTimer = new RandomTimerCondition(initialTime, 600);
RandomTimerCondition grazetoFlockTimer = new RandomTimerCondition(initialTime, 600);
RandomCondition randomCondition = new RandomCondition(2, 2);
//AndCondition andRandomLowFear = new AndCondition(randomCondition, fearLessThan40);
AndCondition andTimerLowFear = new AndCondition(fleetoScaredTimer, fearLessThan20);
AndCondition andRandomNeighborCountGreater = new AndCondition(randomCondition, neighborCountGreater);
AndCondition andRandomNeighborCountLess = new AndCondition(grazetoFlockTimer, neighborCountLess);
//AndCondition andRNCRandom = new AndCondition(andRandomNeighborCount, grazetoFlockTimer);
WanderCondition wanderTrue = new WanderCondition();
//Declaring Transitions
Transition gotoWanderFromScared = new Transition(andTimerLowFear, wanderState, 0);
//Transition gotoWanderFromScared = new Transition(andRandomLowFear, wanderState, 0);
Transition gotoWanderFromGraze = new Transition(wanderTrue, wanderState, 0);
Transition gotoWanderFromGraze2 = new Transition(andRandomNeighborCountLess, wanderState, 0);
Transition gotoGrazeFromScared = new Transition(andTimerLowFear, grazeState, 0);
//Transition gotoGrazeFromScared = new Transition(andRandomLowFear, grazeState, 0);
Transition gotoGrazeFromWander = new Transition(wandertoGrazeTimer, grazeState, 0);
Transition gotoFlockfromGraze = new Transition(andRandomNeighborCountGreater, flockState, 0);
Transition gotoGrazefromFlock = new Transition(flocktoGrazeTimer, grazeState, 0);
Transition gotoScaredFromWander = new Transition(orFearThreat, scaredState, 0); //old cond was feargreaterthan 60
Transition gotoScaredFromGraze = new Transition(orFearThreat, scaredState, 0);
Transition gotoScaredFromFlock = new Transition(orFearThreat, scaredState, 0);
Transition gotoFlee = new Transition(fearGreaterThan80, fleeState, 0);
//Transition gotoScaredFromFlee = new Transition(andTimerLowFear, scaredState, 0);
Transition gotoScaredFromFlee = new Transition(fearLessThan40, scaredState, 0);
//Declaring actions for transitions
gotoWanderFromScared.addActions(wanderAction);
gotoWanderFromGraze.addActions(wanderAction);
gotoWanderFromGraze2.addActions(wanderAction);
gotoGrazeFromScared.addActions(grazeAction);
gotoGrazeFromWander.addActions(grazeAction);
gotoGrazefromFlock.addActions(grazeAction);
gotoScaredFromWander.addActions(scaredAction);
gotoScaredFromGraze.addActions(scaredAction);
gotoFlee.addActions(deerFleeAction);
gotoFlockfromGraze.addActions(flockAction);
gotoScaredFromFlock.addActions(scaredAction);
gotoScaredFromFlee.addActions(scaredAction);
//Hooking up transitions to states
scaredState.addTransition(gotoWanderFromScared);
scaredState.addTransition(gotoGrazeFromScared);
scaredState.addTransition(gotoFlee);
wanderState.addTransition(gotoScaredFromWander);
wanderState.addTransition(gotoGrazeFromWander);
grazeState.addTransition(gotoScaredFromGraze);
grazeState.addTransition(gotoWanderFromGraze);
grazeState.addTransition(gotoFlockfromGraze);
grazeState.addTransition(gotoWanderFromGraze2);
fleeState.addTransition(gotoScaredFromFlee);
flockState.addTransition(gotoGrazefromFlock);
flockState.addTransition(gotoScaredFromFlock);
FiniteStateMachine newFSM = new FiniteStateMachine(wanderState);
deer.fsm = newFSM;
}
public void Update(GameTime gameTime)
{
if (deerRemoval.Count > 0)
{
foreach (Entity d in deerRemoval)
{
deers.Remove(d);
deerDead.Add(d);
}
deerRemoval.Clear();
}
if (deerDeadRemoval.Count > 0)
{
foreach (Entity d in deerDeadRemoval)
{
deerDead.Remove(d);
}
deerDeadRemoval.Clear();
}
foreach (Entity d in deerDead)
{
Vector2 distanceHtoD = d.Position - game.playerHunter.Position;
float distHtoD = distanceHtoD.Length();
if (distHtoD < 30)
{
if (game.playerHunter.health <= 4)
{
game.playerHunter.health += 2;
}
else
{
game.playerHunter.health = 4;
}
deerDeadRemoval.Add(d);
}
Vector2 distanceLtoD = d.Position - game.lion.Position;
float distLtoD = distanceLtoD.Length();
if (distLtoD < 30)
{
if (game.lion.health <= 6)
{
game.lion.health += 2;
}
else
{
game.lion.health = 6;
}
deerDeadRemoval.Add(d);
}
}
UpdateDeerNeighbors();
calcDeersFear();
foreach (Entity d in deers)
{
d.updateFear();
}
if (deerCount > 0)
{
deerWander = random.Next(1, deerCount);
}
else
{
deerWander = -1;
}
for (int i = 0; i < deers.Count; ++i)
{
Deer d = (Deer)deers[i];
//check what state and timer cooldown
--wanderTimer;
if (wanderTimer == 0)
{
if (i == deerWander)
{
d.wander = true;
}
wanderTimer = random.Next(600, 1500);
}
foreach (Bush b in game.gameWorld.getBushes())
{
if ((d.Position - b.posit).Length() < 33)
{
if (!b.occupied)
{
d.Velocity *= .55f;
b.occupied = true;
continue;
}
}
}
d.Update(new SteeringOutput(), gameTime);
}
}