public void ThalamusOperate(WreckAI ai, float deltaTime, bool targetHumans, bool targetOtherCreatures, bool targetSubmarines, bool ignoreDelay)
{
if (ai == null)
{
return;
}
IsActive = true;
if (GameMain.NetworkMember != null && GameMain.NetworkMember.IsClient)
{
return;
}
if (updatePending)
{
if (updateTimer < 0.0f)
{
#if SERVER
item.CreateServerEvent(this);
#endif
prevTargetRotation = targetRotation;
updateTimer = 0.25f;
}
updateTimer -= deltaTime;
}
if (!ignoreDelay && waitTimer > 0)
{
waitTimer -= deltaTime;
return;
}
Submarine closestSub = null;
float maxDistance = 10000.0f;
float shootDistance = AIRange;
ISpatialEntity target = null;
float closestDist = shootDistance * shootDistance;
if (targetHumans || targetOtherCreatures)
{
foreach (var character in Character.CharacterList)
{
if (character == null || character.Removed || character.IsDead)
{
continue;
}
if (character.Params.Group.Equals(ai.Config.Entity, StringComparison.OrdinalIgnoreCase))
{
continue;
}
bool isHuman = character.IsHuman || character.Params.Group.Equals(CharacterPrefab.HumanSpeciesName, StringComparison.OrdinalIgnoreCase);
if (isHuman)
{
if (!targetHumans)
{
// Don't target humans if not defined to.
continue;
}
}
else if (!targetOtherCreatures)
{
// Don't target other creatures if not defined to.
continue;
}
float dist = Vector2.DistanceSquared(character.WorldPosition, item.WorldPosition);
if (dist > closestDist)
{
continue;
}
target = character;
closestDist = dist;
}
}
if (targetSubmarines)
{
if (target == null || target.Submarine != null)
{
closestDist = maxDistance * maxDistance;
foreach (Submarine sub in Submarine.Loaded)
{
if (sub.Info.Type != SubmarineInfo.SubmarineType.Player)
{
continue;
}
float dist = Vector2.DistanceSquared(sub.WorldPosition, item.WorldPosition);
if (dist > closestDist)
{
continue;
}
closestSub = sub;
closestDist = dist;
}
closestDist = shootDistance * shootDistance;
if (closestSub != null)
{
foreach (var hull in Hull.hullList)
{
if (!closestSub.IsEntityFoundOnThisSub(hull, true))
{
continue;
}
float dist = Vector2.DistanceSquared(hull.WorldPosition, item.WorldPosition);
if (dist > closestDist)
{
continue;
}
target = hull;
closestDist = dist;
}
}
}
}
if (!ignoreDelay)
{
if (target == null)
{
// Random movement
waitTimer = Rand.Value(Rand.RandSync.Unsynced) < 0.98f ? 0f : Rand.Range(5f, 20f);
targetRotation = Rand.Range(minRotation, maxRotation);
updatePending = true;
return;
}
if (disorderTimer < 0)
{
// Random disorder
disorderTimer = Rand.Range(0f, 3f);
waitTimer = Rand.Range(0.25f, 1f);
targetRotation = MathUtils.WrapAngleTwoPi(targetRotation += Rand.Range(-1f, 1f));
updatePending = true;
return;
}
else
{
disorderTimer -= deltaTime;
}
}
if (target == null)
{
return;
}
float angle = -MathUtils.VectorToAngle(target.WorldPosition - item.WorldPosition);
targetRotation = MathUtils.WrapAngleTwoPi(angle);
if (Math.Abs(targetRotation - prevTargetRotation) > 0.1f)
{
updatePending = true;
}
if (target is Hull targetHull)
{
Vector2 barrelDir = new Vector2((float)Math.Cos(rotation), -(float)Math.Sin(rotation));
if (!MathUtils.GetLineRectangleIntersection(item.WorldPosition, item.WorldPosition + barrelDir * AIRange, targetHull.WorldRect, out _))
{
return;
}
}
else
{
float midRotation = (minRotation + maxRotation) / 2.0f;
while (midRotation - angle < -MathHelper.Pi)
{
angle -= MathHelper.TwoPi;
}
while (midRotation - angle > MathHelper.Pi)
{
angle += MathHelper.TwoPi;
}
if (angle < minRotation || angle > maxRotation)
{
return;
}
float enemyAngle = MathUtils.VectorToAngle(target.WorldPosition - item.WorldPosition);
float turretAngle = -rotation;
if (Math.Abs(MathUtils.GetShortestAngle(enemyAngle, turretAngle)) > 0.15f)
{
return;
}
}
Vector2 start = ConvertUnits.ToSimUnits(item.WorldPosition);
Vector2 end = ConvertUnits.ToSimUnits(target.WorldPosition);
if (target.Submarine != null)
{
start -= target.Submarine.SimPosition;
end -= target.Submarine.SimPosition;
}
var collisionCategories = Physics.CollisionWall | Physics.CollisionCharacter | Physics.CollisionItem | Physics.CollisionLevel;
var pickedBody = Submarine.PickBody(start, end, null, collisionCategories, allowInsideFixture: true,
customPredicate: (Fixture f) => { return(!item.StaticFixtures.Contains(f)); });
if (pickedBody == null)
{
return;
}
Character targetCharacter = null;
if (pickedBody.UserData is Character c)
{
targetCharacter = c;
}
else if (pickedBody.UserData is Limb limb)
{
targetCharacter = limb.character;
}
if (targetCharacter != null)
{
if (targetCharacter.Params.Group.Equals(ai.Config.Entity, StringComparison.OrdinalIgnoreCase))
{
// Don't shoot friendly characters
return;
}
}
else
{
if (pickedBody.UserData is ISpatialEntity e)
{
Submarine sub = e.Submarine;
if (sub == null)
{
return;
}
if (!targetSubmarines)
{
return;
}
if (sub == Item.Submarine)
{
return;
}
// Don't shoot non-player submarines, i.e. wrecks or outposts.
if (!sub.Info.IsPlayer)
{
return;
}
}
else
{
// Hit something else, probably a level wall
return;
}
}
TryLaunch(deltaTime, ignorePower: true);
}