/// <summary>
/// Constructors a new sprite.
/// </summary>
public ImpFlock(ContentManager p_Content, string p_XMLFile, Vector2 p_InitialPosition)
{
Direction = GV.LEFT;
IsAlive = true;
returnPosition = p_InitialPosition;
Position = p_InitialPosition;
patternList.Add(PlusPattern);
patternList.Add(ArrowPatternRight);
patternList.Add(ArrowPatternLeft);
patternList.Add(AttackPattern1);
currentPattern = 0;
time = 0;
for (int i = 0; i <5; i++)
{
Imp newImp = new Imp(GV.ContentManager, "XML Documents/ImpAnimations", p_InitialPosition);
newImp.FlockPosition = i;
flockList.Add(newImp);
}
State = new FlockPatrolState(this);
StateMachine = new StateMachine(this, new FlockPatrolState(this));
StateMachine.AddState("KismetDataTypes.FlockPatrolState", "", "FlockPatrolState");
StateMachine.AddState("KismetDataTypes.FlockPatrolState", "insight", "FlockAttackState");
StateMachine.AddState("KismetDataTypes.FlockAttackState", "", "FlockAttackState");
StateMachine.AddState("KismetDataTypes.FlockAttackState", "insight", "FlockAttackState");
}
/// <summary>
/// updates each imp in the flock.
/// </summary>
/// <param name="p_GameTime"></param>
public override void Update(GameTime gameTime)
{
State.Update(gameTime);
time += (float)gameTime.ElapsedGameTime.TotalSeconds;
SightDetected = false;
if (flockList.Count > 0)
{
float minDistance = 0;
int index = 0;
if (MagicItemManager.lightCount > 0)
{
Vector2[] lightSpells = MagicItemManager.GetLightMagicArray(MagicItemManager.lightCount);
// Since the camera's position is removed from the light magic's position
// when returning the array of positions (makes it easier for the shader),
// it needs to be added back in for calculating the position in the world.
//
// Check all the lights for moving them close to a nearby light source
for (int i = 0; i < MagicItemManager.lightCount; i += 1)
{
float diffx = lightSpells[i].X - Position.X;
float diffy = lightSpells[i].Y - Position.Y;
float distance = (float)Math.Sqrt((diffx * diffx) + (diffy * diffy));
// Get the distances between the imps and the light sources, comparing
// each time to find the closest one and its index in the array
if (distance < minDistance)
{
minDistance = distance;
index = i;
}
else if (minDistance == 0)
{
minDistance = distance;
index = i;
}
}
// Set the new values for the flock's base location
ReturnPosition = lightSpells[index];
// Sets the flock's current position to be around the light
Position = lightSpells[index];
}
else // Go into the lights that are a part of the level
{
for (int i = 0; i < GV.Level.NumLights; i += 1)
{
float diffx = GV.Level.Lights[i].Centre.X - Position.X;
float diffy = GV.Level.Lights[i].Centre.Y - Position.Y;
float distance = (float)Math.Sqrt((diffx * diffx) + (diffy * diffy));
// Get the distances between the imps and the light sources, comparing
// each time to find the closest one and its index in the array
if (distance < minDistance)
{
minDistance = distance;
index = i;
}
else if (minDistance == 0)
{
minDistance = distance;
index = i;
}
}
// Set the new base position foor the flock
ReturnPosition = GV.Level.Lights[index].Centre;
}
float distanceX = Math.Abs(ReturnPosition.X - Position.X);
if (distanceX > 15 && !playerLight)
{
// Sets the current position if the imps have strayed too far from a light
Position = ReturnPosition;
}
for (int i = 0; i < flockList.Count; i++) // Loop through List with for each item in list
{
Imp imp = flockList[i];
if (!imp.IsAlive)
{
flockList.Remove(imp);
}
else
{
float radius = GV.Player.LightRadius;
Vector2 PlayerPosition = new Vector2(GV.Player.Position.X, GV.Player.Position.Y - (((float)GV.Player.Sprite.BoundingBox.Bottom - (float)GV.Player.Sprite.BoundingBox.Top)) / 2);
Vector2 impPosition = new Vector2(imp.Position.X, imp.Position.Y - (((float)imp.Sprite.BoundingBox.Bottom - (float)imp.Sprite.BoundingBox.Top)) / 2);
// check to see if there is a collision
float diffx = PlayerPosition.X - impPosition.X;
float diffy = impPosition.Y - PlayerPosition.Y;
double diffRadius = Math.Sqrt(Math.Pow((double)diffx, 2) + Math.Pow((double)diffy, 2));
if (diffRadius <= radius)
{
if (diffx < 0)
imp.Direction = GV.LEFT;
else
imp.Direction = GV.RIGHT;
SightDetected = true;
}
if (time >= 2.0f)
{
currentPattern = (currentPattern + 1) % 3;
time = 0.0f;
}
if (State.GetType().ToString() == "KismetDataTypes.FlockAttackState")
{
currentPattern = 3;
}
Vector2 patternPosition = patternList[currentPattern][i];
Vector2 flockPosition = PatternMap[(int)patternPosition.X, (int)patternPosition.Y];
//Vector2 patternPosition = patternList[1][i];
Vector2 worldPosition = Position + flockPosition;
imp.Position += (worldPosition - imp.Position) / 40;
imp.Velocity = Velocity;
imp.Update(gameTime);
}
}
Position += Velocity;
//Console.WriteLine("insight " + SightDetected);
//Console.WriteLine("state " + State.GetType().ToString());
if (SightDetected)
{
//Console.WriteLine("insight " + SightDetected);
attackTime = 0;
//StateMachine.UpdateState("insight");
//returnPosition = Position;
State = new FlockAttackState(this);
SightDetected = true;
//Console.WriteLine(" switch to attack state");
}
else if (!SightDetected && State.GetType().ToString() == "KismetDataTypes.FlockAttackState")
{
//Position = new Vector2(returnPosition.X, returnPosition.Y);
State = new FlockPatrolState(this);
//Console.WriteLine(" switch to patrol state");
}
}
else
{
IsAlive = false;
}
}
