public Fish()
: base(0, 0, 32, 32, 16, 10)
{
randomX = rnd.NextDouble() * 6.28;
randomY = rnd.NextDouble() * 6.28;
this.MaxVel = 200;
this.MaxAcc = 300;
this.isSchooling = false;
this.isLeader = false;
this.partner = null;
this.isPoweredUp = false;
schoolingBounds = Rectangle.Empty;
this.gettingIntoSchoolRange = false;
boundsChecker = new Circle(0, 0, 0);
}
/// <summary>
/// Just reset all schooling variables.
/// </summary>
private void resetSchooling()
{
this.gettingIntoSchoolRange = false;
this.partner = null;
this.isSchooling = false;
this.isLeader = false;
}
public override void spawnAt(Vector2 position)
{
base.spawnAt(position);
this.isColorCoded = false;
this.powerup = null;
this.isPoweredUp = false;
this.MaxVel = 300;
this.MaxAcc = 300;
changeState(state.Moving);
randomX = rnd.NextDouble() * 2 - rnd.NextDouble();
randomY = rnd.NextDouble() * 2 - rnd.NextDouble();
this.isSchooling = false;
this.isLeader = false;
this.partner = null;
this.gettingIntoSchoolRange = false;
}
/// <summary>
/// If there is a nearby leader in range, follow it.
/// Otherwise, find the nearest fish. If it is in range,
/// we're not following it or our partner is dead, and
/// we're not a leader, then follow it. If that nearest
/// fish is a delinquent, then make it a leader.
/// </summary>
public void TryToSchool(List<Fish> fishPool)
{
if (this.CurrState == state.Dying) return;
if (this.isPoweredUp) return;
float distToNearestLeader = 0.0f;
Fish nearestLeader = getNearestFish(fishPool, ref distToNearestLeader, true);
float distToNearestFish = 0.0f;
Fish nearestFish = getNearestFish(fishPool, ref distToNearestFish, false);
// if there is a nearby leader to follow and we're not already following it
// and it is within range, then follow it. If we're a leader, then
// we are now a follower
if (nearestLeader != null
&& this.partner != nearestLeader
&& Actor.DistanceBetween(this, nearestLeader) < LEADER_RANGE)
{
this.isLeader = false;
this.partner = nearestLeader;
this.isSchooling = true;
this.acceleration =
Math.Abs(SCHOOLING_RANGE - distToNearestLeader) * this.DirectionTo(nearestLeader);
this.gettingIntoSchoolRange = true;
}
// otherwise, if there is another fish to follow that we're not already following
// or our partner is dead and we're not a leader and it is in range, then follow it.
// If it is a delinquent, make it a leader.
else if (nearestFish != null
&& (this.partner == null ||
(this.partner != null && (!this.partner.IsAlive || this.partner.CurrState == state.Dying)))
&& !this.isLeader && !nearestFish.isLeader
&& !nearestFish.IsSchooling
&& Actor.DistanceBetween(this, nearestFish) < SCHOOLING_RANGE)
{
this.partner = nearestFish;
this.isSchooling = true;
this.acceleration =
(SCHOOLING_RANGE - distToNearestFish) * this.DirectionTo(nearestFish);
this.gettingIntoSchoolRange = true;
nearestFish.IsLeader = true;
}
}
public void spawnAt(Vector2 position, Powerup p, bool isColorCoded)
{
base.spawnAt(position);
this.isColorCoded = isColorCoded;
this.powerup = p;
this.isPoweredUp = true;
this.MaxVel = 666;
this.MaxAcc = 700;
changeState(state.Moving);
randomX = rnd.NextDouble() * 2 - rnd.NextDouble();
randomY = rnd.NextDouble() * 2 - rnd.NextDouble();
this.isSchooling = false;
this.isLeader = false;
this.partner = null;
this.gettingIntoSchoolRange = false;
}