/// <summary>
/// calculate target and update the boid info;
/// </summary>
/// <param name="sight"></param>
/// <param name="targetState"></param>
/// <param name="pos"></param>
/// <returns></returns>
Vector3?calc_update_boid(ref BaseUnitSight.Component sight, TargetState targetState, Vector3 pos)
{
Vector3?tgt = null;
var boidVector = sight.BoidVector;
if (boidVector.Potential > 0.0f)
{
var center = boidVector.Center.ToWorkerPosition(this.Origin);
if ((center - pos).sqrMagnitude > boidVector.SqrtBoidRadius())
{
tgt = center;
}
else if (targetState == TargetState.OutOfRange)
{
tgt = pos + boidVector.GetVector3(sight.TargetRange);
}
}
var current = Time.ElapsedTime;
var diffTime = (float)(current - sight.BoidUpdateTime);
boidVector.Potential = AttackLogicDictionary.ReduceBoidPotential(boidVector.Potential, diffTime);
sight.BoidUpdateTime = current;
sight.BoidVector = boidVector;
return(tgt);
}
protected override void OnUpdate()
{
if (CheckTime(ref inter) == false)
{
return;
}
Entities.With(group).ForEach((Entity entity,
ref BoidComponent.Component boid,
ref BaseUnitStatus.Component status,
ref BaseUnitTarget.Component target,
ref CommanderStatus.Component commander,
ref BaseUnitMovement.Component movement,
ref SpatialEntityId entityId) =>
{
if (status.State != UnitState.Alive)
{
return;
}
var trans = EntityManager.GetComponentObject <Transform>(entity);
var pos = trans.position;
var side = status.Side;
var speed = movement.MoveSpeed;
var forward = trans.forward;
var commanderRank = status.Rank;
var soldierRange = RangeDictionary.BaseBoidsRange;
var soldiers = getAllyUnits(side, pos, soldierRange, allowDead: false, selfId: entityId.EntityId, GetSingleUnitTypes(UnitType.Soldier));
float f_length = boid.ForwardLength;
boid_calculate(pos + forward * f_length, pos, soldierRange, forward * speed,
boid.SepareteWeight, boid.AlignmentWeight, boid.CohesionWeight, soldiers);
if (commanderRank < 1)
{
return;
}
var commanderRange = RangeDictionary.GetBoidsRange(commanderRank);
var coms = getAllyUnits(side, pos, commanderRange, allowDead: false, selfId: entityId.EntityId, GetSingleUnitTypes(UnitType.Commander));
commanders.Clear();
foreach (var c in coms)
{
if (c.rank == commanderRank - 1)
{
commanders.Add(c);
}
}
f_length = AttackLogicDictionary.RankScaled(f_length, commanderRank);
f_length += commander.AllyRange;
boid_calculate(pos + forward * f_length, pos, commanderRange, forward * speed,
boid.SepareteWeight, boid.AlignmentWeight, boid.CohesionWeight, commanders);
});
}
public override void Initialize()
{
Instance = this;
foreach (var o in orderRates)
{
orderDic[o.order] = o;
}
}
private void Query(Entity entity,
ref BaseUnitSight.Component sight,
ref UnitActionData action,
ref BaseUnitStatus.Component status,
ref BaseUnitTarget.Component target,
ref SpatialEntityId entityId)
{
if (status.State != UnitState.Alive)
{
return;
}
if (status.Order == OrderType.Idle)
{
return;
}
if (UnitUtils.IsWatcher(status.Type) == false)
{
return;
}
// initial
target.State = TargetState.None;
var id = entityId.EntityId.Id;
if (enemyPositionsContainer.ContainsKey(id) == false)
{
enemyPositionsContainer[id] = new List <FixedPointVector3>();
}
var enemyPositions = enemyPositionsContainer[id];
enemyPositions.Clear();
var trans = EntityManager.GetComponentObject <Transform>(entity);
var pos = trans.position;
UnitInfo enemy = null;
var sightRange = action.SightRange;
var backBuffer = sightRange / 2;
if (status.Type == UnitType.Commander)
{
backBuffer += RangeDictionary.AllyRange / 2;
}
// strategy target
SetStrategyTarget(pos, backBuffer, ref sight, ref target);
// keep logic
if (status.Order == OrderType.Keep)
{
sightRange *= target.PowerRate;
}
enemy = getNearestEnemy(status.Side, pos, sightRange);
if (enemy != null)
{
var tgtPos = sight.TargetPosition.ToWorkerPosition(this.Origin);
var epos = enemy.pos.ToWorldPosition(this.Origin);
if (Vector3.Dot(tgtPos - pos, enemy.pos - pos) > 0)
{
target.State = TargetState.ActionTarget;
sight.TargetPosition = epos;
sight.TargetSize = enemy.size;
}
enemyPositions.Add(epos);
}
float range;
switch (target.State)
{
case TargetState.ActionTarget:
range = action.AttackRange;
range = AttackLogicDictionary.GetOrderRange(status.Order, range) * target.PowerRate;
break;
default:
range = RangeDictionary.BodySize;
break;
}
// set behind
if (status.Type == UnitType.Commander)
{
var addRange = RangeDictionary.AllyRange / 2;
range += AttackLogicDictionary.RankScaled(addRange, status.Rank);
}
sight.TargetRange = range;
sight.State = target.State;
}
private void boid_calculate(Vector3 center, Vector3 pos, float range, Vector3 centerMove,
float separeteWeight, float alignmentWeight, float cohesionWeight, List <UnitInfo> allies)
{
var rate = range / RangeDictionary.BaseBoidsRange;
var alignmentVector = centerMove.normalized;
var centerMoveSpeed = centerMove.magnitude;
floatInfoDic.Clear();
float totalLength = 1.0f;
foreach (var unit in allies)
{
if (TryGetComponentObject <Transform>(unit.id, out var t) == false)
{
continue;
}
if (TryGetComponent <BaseUnitMovement.Component>(unit.id, out var move) == false)
{
continue;
}
var length = Mathf.Max((pos - unit.pos).magnitude, 1.0f);
floatInfoDic[unit.id] = new ValueTuple <float, float>(move.Value.MoveSpeed, length);
// scaled balance
alignmentVector += t.forward * 1.0f / length;
totalLength += 1.0f / length;
}
alignmentVector /= totalLength;
foreach (var unit in allies)
{
if (TryGetComponent <BaseUnitSight.Component>(unit.id, out var sight) == false)
{
continue;
}
if (floatInfoDic.TryGetValue(unit.id, out var info) == false)
{
continue;
}
var selfSpeed = info.Item1;
var length = info.Item2;
var boidVector = sight.Value.BoidVector;
var baseVec = boidVector.Vector.ToUnityVector();
var boidVec = Vector3.zero;
var inter = RangeDictionary.UnitInter;
var potential = AttackLogicDictionary.BoidPotential(1, length, range);
if (potential <= boidVector.Potential)
{
continue;
}
var scaledLength = length / rate;
var syncSpeed = (centerMoveSpeed * 1.0f + selfSpeed * scaledLength) / (scaledLength + 1.0f);
foreach (var other in allies)
{
if (other.id == unit.id)
{
continue;
}
var sep = (unit.pos - other.pos) / rate;
boidVec += sep;
}
// length scaled weight
separeteWeight *= 1.0f / scaledLength;
cohesionWeight *= scaledLength / 1.0f;
boidVec = (boidVec / allies.Count) * separeteWeight;
boidVec += alignmentVector * alignmentWeight;
boidVec += ((center - unit.pos) / rate) * cohesionWeight;
boidVec = boidVec.normalized * syncSpeed * 10.0f;
var diffVec = boidVec - baseVec;
var diffCenter = center - sight.Value.BoidVector.Center.ToUnityVector();
if (diffVec.sqrMagnitude < diffMinVec && diffCenter.sqrMagnitude < diffMinPos)
{
continue;
}
boidVector = new BoidVector(boidVec.ToFixedPointVector3(), center.ToWorldPosition(this.Origin), range, potential);
this.UpdateSystem.SendEvent(new BaseUnitSight.BoidDiffed.Event(boidVector), unit.id);
}
}