/// <summary>
/// Initialize a Boid with random rotation, position and velocity.
/// </summary>
public void Initialize(CFlock _sourceFlock)
{
// Vector3 randomPosition = _sourceFlock.transform.position + UnityEngine.Random.insideUnitSphere * UnityEngine.Random.Range (0f, 3f);
// Vector3 randomRotation = new Vector3 (UnityEngine.Random.Range (0f, 360f), UnityEngine.Random.Range (0f, 360f), UnityEngine.Random.Range (0f, 360f));
// Vector3 randomVelocity = UnityEngine.Random.insideUnitSphere;
//
// Initialize (randomPosition, randomRotation, randomVelocity, _sourceFlock);
Initialize(_sourceFlock.transform.position, Vector3.zero, Vector3.zero, _sourceFlock);
}
IEnumerator EmitWithDelay(CFlock _flock, float _delay)
{
for (int i = 0; i < flockSize; i++)
{
CBoid newBoid = Instantiate <CBoid>(boidTemplate);
newBoid.name = string.Format("Boid {0}", i);
_flock.AddTo(newBoid);
yield return(new WaitForSeconds(emitDelay));
}
}
private Vector3 Separation(Vector3 position, CFlock flock)
{
// Separation
// Method checks for nearby boids and steers away
Vector3 steer = Vector3.Zero;
int count = 0;
// For every boid in the system, check if it's too close
foreach (var other in flock.Members)
{
var otherTransform = (CTransform)Game1.Inst.Scene.GetComponentFromEntity <CTransform>(other);
float d = PositionalUtil.Distance(position, otherTransform.Position);
// If the distance is greater than 0 and less than an arbitrary amount (0 when you are yourself)
if ((d > 0) && (d < flock.SeparationDistance))
{
// Calculate vector pointing away from neighbor
Vector3 diff = Vector3.Normalize(position - otherTransform.Position);
//Vector3 diff = Vector3.Subtract(position, otherTransform.Position);
//diff.Normalize();
diff /= d; // Weight by distance (makes closer neighbors more important to steer away from)
steer += diff;
count++; // Keep track of how many
}
}
// Average -- divide by how many
if (count > 0)
{
steer /= count;
}
/*
* // As long as the vector is greater than 0
* if (steer.X > 0 || steer.Y > 0 || steer.Z > 0) {
* // First two lines of code below could be condensed with new PVector setMag() method
* // Not using this method until Processing.js catches up
* // steer.setMag(maxspeed);
*
* // Implement Reynolds: Steering = Desired - Velocity
* steer.Normalize();
* steer *= (maxspeed);
* steer.sub(velocity);
* steer.limit(maxforce);
* }*/
//steer.Normalize();
return(steer);
}
/// <summary>
/// See enemies !
/// </summary>
private int SeeEnemies(CFlock _flock)
{
float distance;
CBoid enemy;
numOfEnemiesSeen = 0;
nearestEnemy = null;
distanceToNearestEnemy = float.MaxValue;
for (int i = 0; i < CFlock.flockCount; i++)
{
if (CFlock.listOfFlocks [i] == parentFlock)
{
continue;
}
enemy = CFlock.listOfFlocks [i].GetFirstMember();
while (enemy != null)
{
if ((distance = CanISee(enemy)) != float.MaxValue)
{
numOfEnemiesSeen++;
// Test: Closets enemy ?
if (distance < minDistanceToEnemies)
{
distanceToNearestEnemy = distance;
nearestEnemy = enemy;
}
}
enemy = enemy.GetNext();
}
}
return(numOfEnemiesSeen);
}
/// <summary>
/// Basic boid initialization
/// </summary>
void Initialize(Vector3 _position, Vector3 _rotation, Vector3 _velocity, CFlock _sourceFlock)
{
parentFlock = _sourceFlock;
myTransform.position = _position;
myTransform.eulerAngles = _rotation;
Velocity = _velocity;
OverallSpeed = Velocity.magnitude;
numOfFlockmatesSeen = 0;
nearestFlockmate = null;
distanceToNearestFlockmate = Mathf.Infinity;
numOfEnemiesSeen = 0;
nearestEnemy = null;
distanceToNearestEnemy = Mathf.Infinity;
next = previous = null;
initialized = true;
}
public static void CreateAnimals(int numFlocks, int worldsize)
{
var currentScene = Game1.Inst.Scene;
int membersPerFlock = (int)(rnd.NextDouble() * 10) + 10;
var flockRadius = membersPerFlock;
for (int f = 0; f < numFlocks; f++)
{
int flockId = currentScene.AddEntity();
CFlock flock = new CFlock {
Radius = 20,
SeparationDistance = 3,
AlignmentFactor = 0.1f,
CohesionFactor = 0.5f,
SeparationFactor = 100.0f,
PreferredMovementSpeed = 150f
};
double animal = rnd.NextDouble();
string flockAnimal = animal > 0.66 ? "flossy" : animal > 0.33 ? "goose" : "hen";
string deathSound = string.Format("Sounds/Effects/{0}", (flockAnimal == "flossy" ? "SheepDeath" : flockAnimal == "goose" ? "GooseDeath" : "DeathChicken"));
int flockX = (int)(rnd.NextDouble() * worldsize * 2 - worldsize);
int flockZ = (int)(rnd.NextDouble() * worldsize * 2 - worldsize);
CTransform flockTransform = new CTransform {
Position = new Vector3(flockX, 0, flockZ)
};
for (int i = 0; i < membersPerFlock; i++)
{
int id = currentScene.AddEntity();
var npcAnim = wiggleAnimation(id);
if (flockAnimal.Equals("hen"))
{
// TODO: Make animals have different animations based on state
CAnimation normalAnimation = new CHenNormalAnimation {
animFn = npcAnim
};
// Set a random offset to animation so not all animals are synced
normalAnimation.CurrentKeyframe = rnd.Next(normalAnimation.Keyframes.Count - 1);
// Random animation speed between 0.8-1.0
normalAnimation.AnimationSpeed = (float)rnd.NextDouble() * 0.2f + 0.8f;
currentScene.AddComponent <C3DRenderable>(id, normalAnimation);
}
else
{
CImportedModel modelComponent = new CImportedModel {
animFn = npcAnim
};
modelComponent.fileName = flockAnimal;
modelComponent.model = Game1.Inst.Content.Load <Model>("Models/" + modelComponent.fileName);
currentScene.AddComponent <C3DRenderable>(id, modelComponent);
}
float memberX = flockTransform.Position.X + (float)rnd.NextDouble() * flockRadius * 2 - flockRadius;
float memberZ = flockTransform.Position.Z + (float)rnd.NextDouble() * flockRadius * 2 - flockRadius;
float y = flockTransform.Position.Y;
CTransform transformComponent = new CTransform();
transformComponent.Position = new Vector3(memberX, y, memberZ);
transformComponent.Rotation = Matrix.CreateFromAxisAngle(Vector3.UnitY,
(float)(Math.PI * (rnd.NextDouble() * 2)));
float size = 0.5f;
transformComponent.Scale = new Vector3(1f);
currentScene.AddComponent(id, transformComponent);
currentScene.AddComponent(id, new CBody {
InvMass = 0.05f,
Aabb = new BoundingBox(-size * new Vector3(1.0f, 2.0f, 1.0f), size * new Vector3(1.0f, 0.0f, 1.0f)),
LinDrag = 0.8f,
Velocity = Vector3.Zero,
Radius = 1f,
SpeedMultiplier = size,
MaxVelocity = 4,
Restitution = 0
});
// health value of npcs, maybe change per species/flock/member?
var npcHealth = 1;
currentScene.AddComponent(id, new CHealth {
MaxHealth = npcHealth, Health = npcHealth, DeathSound = deathSound
});
currentScene.AddComponent(id, new CAI {
Flock = flockId
});
currentScene.AddComponent(id, new CSyncObject());
flock.Members.Add(id);
}
currentScene.AddComponent(flockId, flock);
currentScene.AddComponent(flockId, flockTransform);
}
}
