private void updateGrav()
{
// get grav vector
var tempGrav = MyParticlesManager.CalculateGravityInPoint(Entity.PositionComp.GetPosition());
//MyAPIGateway.Utilities.ShowNotification(Entity.DisplayName + gravity.ToString());
// if grav changed, flip flag, update grav
if (tempGrav != gravity)
{
gravity = tempGrav;
updateCable = true;
}
}
public Vector3D GetPredictedTargetPositionOld(Vector3D targetPos, Vector3 targetLinVel, Vector3D targetAccel)
{
if (Comp.Ai.VelocityUpdateTick != Comp.Session.Tick)
{
Comp.Ai.GridVel = Comp.Ai.MyGrid.Physics?.LinearVelocity ?? Vector3D.Zero;
Comp.Ai.IsStatic = Comp.Ai.MyGrid.Physics?.IsStatic ?? false;
Comp.Ai.VelocityUpdateTick = Comp.Session.Tick;
}
if (ActiveAmmoDef.AmmoDef.Const.FeelsGravity && Comp.Ai.Session.Tick - GravityTick > 119)
{
GravityTick = Comp.Ai.Session.Tick;
GravityPoint = MyParticlesManager.CalculateGravityInPoint(MyPivotPos);
}
var gravityMultiplier = ActiveAmmoDef.AmmoDef.Const.FeelsGravity && !MyUtils.IsZero(GravityPoint) ? ActiveAmmoDef.AmmoDef.Trajectory.GravityMultiplier : 0f;
var predictedPos = TrajectoryEstimation(targetPos, targetLinVel, targetAccel, Comp.Session.MaxEntitySpeed, MyPivotPos, Comp.Ai.GridVel, ActiveAmmoDef.AmmoDef.Const.DesiredProjectileSpeed, ActiveAmmoDef.AmmoDef.Trajectory.AccelPerSec * MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS, ActiveAmmoDef.AmmoDef.Trajectory.AccelPerSec, gravityMultiplier, GravityPoint, System.Prediction != Prediction.Advanced);
return(predictedPos);
}
public Vector3D GetPredictedTargetPosition(Vector3D targetPos, Vector3 targetLinVel, Vector3D targetAccel)
{
if (Comp.Ai.VelocityUpdateTick != Comp.Session.Tick)
{
Comp.Ai.GridVel = Comp.Ai.MyGrid.Physics?.LinearVelocity ?? Vector3D.Zero;
Comp.Ai.IsStatic = Comp.Ai.MyGrid.Physics?.IsStatic ?? false;
Comp.Ai.VelocityUpdateTick = Comp.Session.Tick;
}
var gravityMultiplier = 0f;
var gravityPoint = Vector3D.Zero;
if (ActiveAmmoDef.AmmoDef.Const.FeelsGravity)
{
gravityMultiplier = ActiveAmmoDef.AmmoDef.Trajectory.GravityMultiplier;
gravityPoint = MyParticlesManager.CalculateGravityInPoint(MyPivotPos);
}
var predictedPos = TrajectoryEstimation(targetPos, targetLinVel, targetAccel, Comp.Session.MaxEntitySpeed, MyPivotPos, Comp.Ai.GridVel, ActiveAmmoDef.AmmoDef.Const.DesiredProjectileSpeed, 0, ActiveAmmoDef.AmmoDef.Trajectory.AccelPerSec, gravityMultiplier, gravityPoint, System.Prediction != Prediction.Advanced);
return(predictedPos);
}
internal static Vector3D TrajectoryEstimation(Weapon weapon, Vector3D targetPos, Vector3D targetVel, Vector3D targetAcc, out bool valid)
{
valid = true;
var ai = weapon.Comp.Ai;
var session = ai.Session;
var ammoDef = weapon.ActiveAmmoDef.AmmoDef;
if (ai.VelocityUpdateTick != session.Tick)
{
ai.GridVel = ai.MyGrid.Physics?.LinearVelocity ?? Vector3D.Zero;
ai.IsStatic = ai.MyGrid.Physics?.IsStatic ?? false;
ai.VelocityUpdateTick = session.Tick;
}
if (ammoDef.Const.FeelsGravity && session.Tick - weapon.GravityTick > 119)
{
weapon.GravityTick = session.Tick;
weapon.GravityPoint = MyParticlesManager.CalculateGravityInPoint(weapon.MyPivotPos);
}
var gravityMultiplier = ammoDef.Const.FeelsGravity && !MyUtils.IsZero(weapon.GravityPoint) ? ammoDef.Trajectory.GravityMultiplier : 0f;
var targetMaxSpeed = weapon.Comp.Session.MaxEntitySpeed;
var shooterPos = weapon.MyPivotPos;
var shooterVel = (Vector3D)weapon.Comp.Ai.GridVel;
var projectileMaxSpeed = ammoDef.Const.DesiredProjectileSpeed;
var projectileInitSpeed = ammoDef.Trajectory.AccelPerSec * MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS;
var projectileAccMag = ammoDef.Trajectory.AccelPerSec;
var gravity = weapon.GravityPoint;
var basic = weapon.System.Prediction != Prediction.Advanced;
Vector3D deltaPos = targetPos - shooterPos;
Vector3D deltaVel = targetVel - shooterVel;
Vector3D deltaPosNorm;
if (Vector3D.IsZero(deltaPos))
{
deltaPosNorm = Vector3D.Zero;
}
else if (Vector3D.IsUnit(ref deltaPos))
{
deltaPosNorm = deltaPos;
}
else
{
Vector3D.Normalize(ref deltaPos, out deltaPosNorm);
}
double closingSpeed;
Vector3D.Dot(ref deltaVel, ref deltaPosNorm, out closingSpeed);
Vector3D closingVel = closingSpeed * deltaPosNorm;
Vector3D lateralVel = deltaVel - closingVel;
double projectileMaxSpeedSqr = projectileMaxSpeed * projectileMaxSpeed;
double ttiDiff = projectileMaxSpeedSqr - lateralVel.LengthSquared();
if (ttiDiff < 0)
{
valid = false;
return(targetPos);
}
double projectileClosingSpeed = Math.Sqrt(ttiDiff) - closingSpeed;
double closingDistance;
Vector3D.Dot(ref deltaPos, ref deltaPosNorm, out closingDistance);
double timeToIntercept = ttiDiff < 0 ? 0 : closingDistance / projectileClosingSpeed;
if (timeToIntercept < 0)
{
valid = false;
return(targetPos);
}
double maxSpeedSqr = targetMaxSpeed * targetMaxSpeed;
double shooterVelScaleFactor = 1;
bool projectileAccelerates = projectileAccMag > 1e-6;
bool hasGravity = gravityMultiplier > 1e-6;
if (!basic && projectileAccelerates)
{
shooterVelScaleFactor = Math.Min(1, (projectileMaxSpeed - projectileInitSpeed) / projectileAccMag);
}
Vector3D estimatedImpactPoint = targetPos + timeToIntercept * (targetVel - shooterVel * shooterVelScaleFactor);
if (basic)
{
return(estimatedImpactPoint);
}
Vector3D aimDirection = estimatedImpactPoint - shooterPos;
Vector3D projectileVel = shooterVel;
Vector3D projectilePos = shooterPos;
Vector3D aimDirectionNorm;
if (projectileAccelerates)
{
if (Vector3D.IsZero(deltaPos))
{
aimDirectionNorm = Vector3D.Zero;
}
else if (Vector3D.IsUnit(ref deltaPos))
{
aimDirectionNorm = aimDirection;
}
else
{
aimDirectionNorm = Vector3D.Normalize(aimDirection);
}
projectileVel += aimDirectionNorm * projectileInitSpeed;
}
else
{
if (targetAcc.LengthSquared() < 1 && !hasGravity)
{
return(estimatedImpactPoint);
}
if (Vector3D.IsZero(deltaPos))
{
aimDirectionNorm = Vector3D.Zero;
}
else if (Vector3D.IsUnit(ref deltaPos))
{
aimDirectionNorm = aimDirection;
}
else
{
Vector3D.Normalize(ref aimDirection, out aimDirectionNorm);
}
projectileVel += aimDirectionNorm * projectileMaxSpeed;
}
var count = projectileAccelerates ? 600 : 60;
double dt = Math.Max(MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS, timeToIntercept / count); // This can be a const somewhere
double dtSqr = dt * dt;
Vector3D targetAccStep = targetAcc * dt;
Vector3D projectileAccStep = aimDirectionNorm * projectileAccMag * dt;
Vector3D gravityStep = gravity * gravityMultiplier * dt;
Vector3D aimOffset = Vector3D.Zero;
double minDiff = double.MaxValue;
for (int i = 0; i < count; ++i)
{
targetVel += targetAccStep;
if (targetVel.LengthSquared() > maxSpeedSqr)
{
Vector3D targetNormVel;
Vector3D.Normalize(ref targetVel, out targetNormVel);
targetVel = targetNormVel * targetMaxSpeed;
}
targetPos += targetVel * dt;
if (projectileAccelerates)
{
projectileVel += projectileAccStep;
if (projectileVel.LengthSquared() > projectileMaxSpeedSqr)
{
Vector3D pNormVel;
Vector3D.Normalize(ref projectileVel, out pNormVel);
projectileVel = pNormVel * projectileMaxSpeed;
}
}
if (hasGravity)
{
projectileVel += gravityStep;
}
projectilePos += projectileVel * dt;
Vector3D diff = (targetPos - projectilePos);
double diffLenSq = diff.LengthSquared();
if (diffLenSq < projectileMaxSpeedSqr * dtSqr)
{
aimOffset = diff;
break;
}
if (diffLenSq < minDiff)
{
minDiff = diffLenSq;
aimOffset = diff;
}
}
return(estimatedImpactPoint + aimOffset);
}
private void UpdateState()
{
foreach (var p in ActiveProjetiles)
{
p.Info.Age++;
p.Active = false;
switch (p.State)
{
case ProjectileState.Destroy:
p.DestroyProjectile();
continue;
case ProjectileState.Dead:
continue;
case ProjectileState.Start:
p.Start();
break;
case ProjectileState.OneAndDone:
case ProjectileState.Depleted:
case ProjectileState.Detonate:
p.ProjectileClose();
continue;
}
if (p.Info.Target.IsProjectile)
{
if (p.Info.Target.Projectile.State != ProjectileState.Alive)
{
p.UnAssignProjectile(true);
}
}
if (p.FeelsGravity)
{
var update = p.FakeGravityNear || p.EntitiesNear || p.Info.Ai.InPlanetGravity && p.Info.Age % 30 == 0 || !p.Info.Ai.InPlanetGravity && p.Info.Age % 10 == 0;
if (update)
{
p.Gravity = MyParticlesManager.CalculateGravityInPoint(p.Position);
if (!p.Info.Ai.InPlanetGravity && !MyUtils.IsZero(p.Gravity))
{
p.FakeGravityNear = true;
}
else
{
p.FakeGravityNear = false;
}
}
p.Velocity += (p.Gravity * p.Info.AmmoDef.Trajectory.GravityMultiplier) * Projectile.StepConst;
Vector3D.Normalize(ref p.Velocity, out p.Info.Direction);
}
if (p.AccelLength > 0 && !p.Info.TriggeredPulse)
{
if (p.SmartsOn)
{
p.RunSmart();
}
else
{
var accel = true;
Vector3D newVel;
if (p.FieldTime > 0)
{
var distToMax = p.Info.MaxTrajectory - p.Info.DistanceTraveled;
var stopDist = p.VelocityLengthSqr / 2 / (p.StepPerSec);
if (distToMax <= stopDist)
{
accel = false;
}
newVel = accel ? p.Velocity + p.AccelVelocity : p.Velocity - p.AccelVelocity;
p.VelocityLengthSqr = newVel.LengthSquared();
if (accel && p.VelocityLengthSqr > p.MaxSpeedSqr)
{
newVel = p.Info.Direction * p.MaxSpeed;
}
else if (!accel && distToMax <= 0)
{
newVel = Vector3D.Zero;
p.VelocityLengthSqr = 0;
}
}
else
{
newVel = p.Velocity + p.AccelVelocity;
p.VelocityLengthSqr = newVel.LengthSquared();
if (p.VelocityLengthSqr > p.MaxSpeedSqr)
{
newVel = p.Info.Direction * p.MaxSpeed;
}
}
p.Velocity = newVel;
}
}
if (p.State == ProjectileState.OneAndDone)
{
p.LastPosition = p.Position;
var beamEnd = p.Position + (p.Info.Direction * p.Info.MaxTrajectory);
p.TravelMagnitude = p.Position - beamEnd;
p.Position = beamEnd;
}
else
{
if (p.ConstantSpeed || p.VelocityLengthSqr > 0)
{
p.LastPosition = p.Position;
}
p.TravelMagnitude = p.Velocity * StepConst;
p.Position += p.TravelMagnitude;
}
p.Info.PrevDistanceTraveled = p.Info.DistanceTraveled;
p.Info.DistanceTraveled += Math.Abs(Vector3D.Dot(p.Info.Direction, p.Velocity * StepConst));
if (p.ModelState == EntityState.Exists)
{
var up = MatrixD.Identity.Up;
MatrixD matrix;
MatrixD.CreateWorld(ref p.Position, ref p.Info.VisualDir, ref up, out matrix);
if (p.Info.AmmoDef.Const.PrimeModel)
{
p.Info.AvShot.PrimeMatrix = matrix;
}
if (p.Info.AmmoDef.Const.TriggerModel && p.Info.TriggerGrowthSteps < p.Info.AmmoDef.Const.AreaEffectSize)
{
p.Info.TriggerMatrix = matrix;
}
if (p.EnableAv && p.AmmoEffect != null && p.Info.AmmoDef.Const.AmmoParticle && p.Info.AmmoDef.Const.PrimeModel)
{
var offVec = p.Position + Vector3D.Rotate(p.Info.AmmoDef.AmmoGraphics.Particles.Ammo.Offset, p.Info.AvShot.PrimeMatrix);
p.AmmoEffect.WorldMatrix = p.Info.AvShot.PrimeMatrix;
p.AmmoEffect.SetTranslation(ref offVec);
}
}
else if (p.EnableAv && p.AmmoEffect != null && p.Info.AmmoDef.Const.AmmoParticle)
{
var translation = p.AmmoEffect.WorldMatrix.Translation + p.TravelMagnitude;
p.AmmoEffect.SetTranslation(ref translation);
}
if (p.DynamicGuidance)
{
if (p.PruningProxyId != -1)
{
var sphere = new BoundingSphereD(p.Position, p.Info.AmmoDef.Const.AreaEffectSize);
BoundingBoxD result;
BoundingBoxD.CreateFromSphere(ref sphere, out result);
Session.ProjectileTree.MoveProxy(p.PruningProxyId, ref result, p.Velocity);
}
}
if (p.State != ProjectileState.OneAndDone)
{
if (!p.SmartsOn && p.Info.Age > p.Info.AmmoDef.Const.MaxLifeTime)
{
p.DistanceToTravelSqr = p.Info.DistanceTraveled * p.Info.DistanceTraveled;
p.EarlyEnd = true;
}
if (p.Info.DistanceTraveled * p.Info.DistanceTraveled >= p.DistanceToTravelSqr)
{
p.AtMaxRange = true;
if (p.FieldTime > 0)
{
p.FieldTime--;
if (p.Info.AmmoDef.Const.IsMine && !p.MineSeeking && !p.MineActivated)
{
if (p.EnableAv)
{
p.Info.AvShot.Cloaked = p.Info.AmmoDef.Trajectory.Mines.Cloak;
}
p.MineSeeking = true;
}
}
}
}
else
{
p.AtMaxRange = true;
}
if (p.Info.AmmoDef.Const.Ewar)
{
p.RunEwar();
}
p.Active = true;
}
}
private void GenProjectiles()
{
for (int i = 0; i < NewProjectiles.Count; i++)
{
var gen = NewProjectiles[i];
var w = gen.Weapon;
var a = gen.AmmoDef;
var t = gen.Type;
var virts = gen.NewVirts;
var muzzle = gen.Muzzle;
var firingPlayer = w.Comp.Data.Repo.Base.State.PlayerId == w.Comp.Session.PlayerId || w.ClientStaticShot;
w.ClientStaticShot = false;
var patternCycle = gen.PatternCycle;
var targetable = w.ActiveAmmoDef.AmmoDef.Health > 0 && !w.ActiveAmmoDef.AmmoDef.Const.IsBeamWeapon;
var p = Session.Projectiles.ProjectilePool.Count > 0 ? Session.Projectiles.ProjectilePool.Pop() : new Projectile();
p.Info.Id = Session.Projectiles.CurrentProjectileId++;
p.Info.System = w.System;
p.Info.Ai = w.Comp.Ai;
p.Info.IsFiringPlayer = firingPlayer;
p.Info.ClientSent = t == Kind.Client;
p.Info.AmmoDef = a;
p.Info.Overrides = w.Comp.Data.Repo.Base.Set.Overrides;
p.Info.Target.Entity = t != Kind.Client ? w.Target.Entity : gen.TargetEnt;
p.Info.Target.Projectile = w.Target.Projectile;
p.Info.Target.IsProjectile = w.Target.Projectile != null;
p.Info.Target.IsFakeTarget = w.Comp.Data.Repo.Base.State.TrackingReticle;
p.Info.Target.FiringCube = w.Comp.MyCube;
p.Info.DummyTarget = w.Comp.Data.Repo.Base.State.TrackingReticle ? w.Comp.Session.PlayerDummyTargets[w.Comp.Data.Repo.Base.State.PlayerId] : null;
p.Info.WeaponId = w.WeaponId;
p.Info.BaseDamagePool = a == w.ActiveAmmoDef.AmmoDef ? w.BaseDamage : a.BaseDamage;
p.Info.EnableGuidance = w.Comp.Data.Repo.Base.Set.Guidance;
p.Info.WeaponCache = w.WeaponCache;
p.Info.WeaponRng = w.TargetData.WeaponRandom;
p.Info.LockOnFireState = w.LockOnFireState;
p.Info.ShooterVel = w.Comp.Ai.GridVel;
p.Info.OriginUp = t != Kind.Client ? w.MyPivotUp : gen.OriginUp;
p.Info.MaxTrajectory = t != Kind.Client ? a.Const.MaxTrajectoryGrows && w.FireCounter < a.Trajectory.MaxTrajectoryTime ? a.Const.TrajectoryStep * w.FireCounter : a.Const.MaxTrajectory : gen.MaxTrajectory;
p.Info.MuzzleId = t != Kind.Virtual ? muzzle.MuzzleId : -1;
p.Info.UniqueMuzzleId = muzzle.UniqueId;
p.Info.WeaponCache.VirutalId = t != Kind.Virtual ? -1 : p.Info.WeaponCache.VirutalId;
p.Info.Origin = t != Kind.Client ? t != Kind.Virtual ? muzzle.Position : w.MyPivotPos : gen.Origin;
p.Info.Direction = t != Kind.Client ? t != Kind.Virtual ? muzzle.DeviatedDir : w.MyPivotDir : gen.Direction;
if (t == Kind.Client)
{
p.Velocity = gen.Velocity;
}
float shotFade;
if (a.Const.HasShotFade && !a.Const.VirtualBeams)
{
if (patternCycle > a.AmmoGraphics.Lines.Tracer.VisualFadeStart)
{
shotFade = MathHelper.Clamp(((patternCycle - a.AmmoGraphics.Lines.Tracer.VisualFadeStart)) * a.Const.ShotFadeStep, 0, 1);
}
else if (w.System.DelayCeaseFire && w.CeaseFireDelayTick != Session.Tick)
{
shotFade = MathHelper.Clamp(((Session.Tick - w.CeaseFireDelayTick) - a.AmmoGraphics.Lines.Tracer.VisualFadeStart) * a.Const.ShotFadeStep, 0, 1);
}
else
{
shotFade = 0;
}
}
else
{
shotFade = 0;
}
p.Info.ShotFade = shotFade;
p.PredictedTargetPos = w.Target.TargetPos;
p.DeadSphere.Center = w.MyPivotPos;
p.DeadSphere.Radius = w.Comp.Ai.MyGrid.GridSizeHalf + 0.1;
if (a.Const.FeelsGravity && w.System.Session.Tick - w.GravityTick > 60)
{
w.GravityTick = w.System.Session.Tick;
w.GravityPoint = MyParticlesManager.CalculateGravityInPoint(p.Info.Origin);
}
p.Gravity = w.GravityPoint;
if (t != Kind.Virtual)
{
p.Info.PrimeEntity = a.Const.PrimeModel ? a.Const.PrimeEntityPool.Get() : null;
p.Info.TriggerEntity = a.Const.TriggerModel ? Session.TriggerEntityPool.Get() : null;
if (targetable)
{
Session.Projectiles.AddTargets.Add(p);
}
}
else
{
p.Info.WeaponCache.VirtualHit = false;
p.Info.WeaponCache.Hits = 0;
p.Info.WeaponCache.HitEntity.Entity = null;
for (int j = 0; j < virts.Count; j++)
{
var v = virts[j];
p.VrPros.Add(v.Info);
if (!a.Const.RotateRealBeam)
{
p.Info.WeaponCache.VirutalId = 0;
}
else if (v.Rotate)
{
p.Info.Origin = v.Muzzle.Position;
p.Info.Direction = v.Muzzle.Direction;
p.Info.WeaponCache.VirutalId = v.VirtualId;
}
}
virts.Clear();
VirtInfoPools.Return(virts);
}
Session.Projectiles.ActiveProjetiles.Add(p);
p.Start();
p.Info.Monitors = w.Monitors;
if (p.Info.Monitors?.Count > 0)
{
Session.MonitoredProjectiles[p.Info.Id] = p;
for (int j = 0; j < p.Info.Monitors.Count; j++)
{
p.Info.Monitors[j].Invoke(w.Comp.MyCube.EntityId, w.WeaponId, p.Info.Id, p.Info.Target.TargetId, p.Position, true);
}
}
}
NewProjectiles.Clear();
}
private void UpdateState(int end = 0)
{
for (int i = ActiveProjetiles.Count - 1; i >= end; i--)
{
var p = ActiveProjetiles[i];
++p.Info.Age;
++p.Info.Ai.MyProjectiles;
p.Info.Ai.ProjectileTicker = p.Info.System.Session.Tick;
switch (p.State)
{
case ProjectileState.Destroy:
p.DestroyProjectile();
continue;
case ProjectileState.Dead:
continue;
case ProjectileState.OneAndDone:
case ProjectileState.Depleted:
case ProjectileState.Detonate:
if (p.Info.Age == 0 && p.State == ProjectileState.OneAndDone)
{
break;
}
p.ProjectileClose();
ProjectilePool.Push(p);
ActiveProjetiles.RemoveAtFast(i);
continue;
}
if (p.Info.Target.IsProjectile)
{
if (p.Info.Target.Projectile.State != ProjectileState.Alive)
{
p.UnAssignProjectile(true);
}
}
if (!p.AtMaxRange)
{
if (p.FeelsGravity)
{
var update = (p.Info.Age % 60 == 0 || (p.FakeGravityNear || p.EntitiesNear) && p.Info.Age % 10 == 0) && p.Info.Age > 0;
if (update)
{
p.Gravity = MyParticlesManager.CalculateGravityInPoint(p.Position);
if (!p.Info.InPlanetGravity && !MyUtils.IsZero(p.Gravity))
{
p.FakeGravityNear = true;
}
else
{
p.FakeGravityNear = false;
}
p.EntitiesNear = false;
}
p.Velocity += (p.Gravity * p.Info.AmmoDef.Trajectory.GravityMultiplier) * Projectile.StepConst;
Vector3D.Normalize(ref p.Velocity, out p.Info.Direction);
}
if (p.DeltaVelocityPerTick > 0 && !p.Info.EwarAreaPulse)
{
if (p.SmartsOn)
{
p.RunSmart();
}
else
{
var accel = true;
Vector3D newVel;
if (p.FieldTime > 0)
{
var distToMax = p.Info.MaxTrajectory - p.Info.DistanceTraveled;
var stopDist = p.VelocityLengthSqr / 2 / (p.AccelInMetersPerSec);
if (distToMax <= stopDist)
{
accel = false;
}
newVel = accel ? p.Velocity + p.AccelVelocity : p.Velocity - p.AccelVelocity;
p.VelocityLengthSqr = newVel.LengthSquared();
if (accel && p.VelocityLengthSqr > p.MaxSpeedSqr)
{
newVel = p.Info.Direction * p.MaxSpeed;
}
else if (!accel && distToMax <= 0)
{
newVel = Vector3D.Zero;
p.VelocityLengthSqr = 0;
}
}
else
{
newVel = p.Velocity + p.AccelVelocity;
p.VelocityLengthSqr = newVel.LengthSquared();
if (p.VelocityLengthSqr > p.MaxSpeedSqr)
{
newVel = p.Info.Direction * p.MaxSpeed;
}
}
p.Velocity = newVel;
}
}
if (p.State == ProjectileState.OneAndDone)
{
p.LastPosition = p.Position;
var beamEnd = p.Position + (p.Info.Direction * p.Info.MaxTrajectory);
p.TravelMagnitude = p.Position - beamEnd;
p.Position = beamEnd;
}
else
{
if (p.ConstantSpeed || p.VelocityLengthSqr > 0)
{
p.LastPosition = p.Position;
}
p.TravelMagnitude = p.Info.Age != 0 ? p.Velocity * StepConst : p.InitalStep;
p.Position += p.TravelMagnitude;
}
p.Info.PrevDistanceTraveled = p.Info.DistanceTraveled;
double distChanged;
Vector3D.Dot(ref p.Info.Direction, ref p.TravelMagnitude, out distChanged);
p.Info.DistanceTraveled += Math.Abs(distChanged);
if (p.Info.DistanceTraveled <= 500)
{
++p.Info.Ai.ProInMinCacheRange;
}
if (p.DynamicGuidance)
{
if (p.PruningProxyId != -1)
{
var sphere = new BoundingSphereD(p.Position, p.Info.AmmoDef.Const.AreaEffectSize);
BoundingBoxD result;
BoundingBoxD.CreateFromSphere(ref sphere, out result);
Session.ProjectileTree.MoveProxy(p.PruningProxyId, ref result, p.Velocity);
}
}
}
if (p.ModelState == EntityState.Exists)
{
var up = MatrixD.Identity.Up;
MatrixD matrix;
MatrixD.CreateWorld(ref p.Position, ref p.Info.VisualDir, ref up, out matrix);
if (p.Info.AmmoDef.Const.PrimeModel)
{
p.Info.AvShot.PrimeMatrix = matrix;
}
if (p.Info.AmmoDef.Const.TriggerModel && p.Info.TriggerGrowthSteps < p.Info.AmmoDef.Const.AreaEffectSize)
{
p.Info.TriggerMatrix = matrix;
}
}
if (p.State != ProjectileState.OneAndDone)
{
if (p.Info.Age > p.Info.AmmoDef.Const.MaxLifeTime)
{
p.DistanceToTravelSqr = p.Info.DistanceTraveled * p.Info.DistanceTraveled;
p.EarlyEnd = true;
}
if (p.Info.DistanceTraveled * p.Info.DistanceTraveled >= p.DistanceToTravelSqr)
{
p.AtMaxRange = !p.MineSeeking;
if (p.FieldTime > 0)
{
p.FieldTime--;
if (p.Info.AmmoDef.Const.IsMine && !p.MineSeeking && !p.MineActivated)
{
if (p.EnableAv)
{
p.Info.AvShot.Cloaked = p.Info.AmmoDef.Trajectory.Mines.Cloak;
}
p.MineSeeking = true;
}
}
}
}
else
{
p.AtMaxRange = true;
}
if (p.Info.AmmoDef.Const.Ewar)
{
p.RunEwar();
}
}
}
public void Update()
{
if (_targetHit)
{
Kill();
return;
}
// Update velocity due to gravity
Vector3D totalGravity = MyParticlesManager.CalculateGravityInPoint(_position); // Does this get affected by artificial grav? If so... cooooool
Vector3D naturalGravity = RailgunCore.GetNaturalGravityAtPoint(_position);
Vector3D artificialGravity = totalGravity - naturalGravity;
_velocity += (naturalGravity * RailgunCore.MyConfig.NaturalGravityMultiplier + artificialGravity * RailgunCore.MyConfig.ArtificialGravityMultiplier) * _tick;
// Update direction if velocity has changed
if (!_velocity.Equals(_lastVelocity, 1e-3))
{
_direction = Vector3D.Normalize(_velocity);
}
_lastVelocity = _velocity;
// Update position
_position += _velocity * _tick;
var _toOrigin = _position - _origin;
//draw tracer line
if (_drawTrail && _currentTracerFadeTicks < _maxTracerFadeTicks)
{
_lineColor *= _trailColorDecayRatio;
_currentTracerFadeTicks++;
}
if (_toOrigin.LengthSquared() > _maxTrajectory * _maxTrajectory)
{
MyLog.Default.WriteLine(">> Max range hit");
_targetHit = true;
_hitPosition = _position;
Kill();
if (_shouldExplode)
{
CreateExplosion(_position, _direction, _explosionRadius, _explosionDamage);
}
return;
}
_checkIntersectionIndex = ++_checkIntersectionIndex % 5;
if (_checkIntersectionIndex != 0 && _positionChecked)
{
return;
}
// Add current position to trajectory list
_trajectoryPoints.Add(_position);
var to = _position; //_position + 5.0 * _velocity * _tick;
var from = _lastPositionChecked;
_positionChecked = true;
_lastPositionChecked = _position;
IHitInfo hitInfo;
bool hit = false;
if (Vector3D.DistanceSquared(to, from) > 50 * 50)
{
// Use faster raycast if ray is long enough
hit = MyAPIGateway.Physics.CastLongRay(from, to, out hitInfo, true);
}
else
{
hit = MyAPIGateway.Physics.CastRay(from, to, out hitInfo, 0);
}
if (hit)
{
MyLog.Default.WriteLine(">> Raycast hit");
_hitPosition = hitInfo.Position + -0.5 * _direction;
if ((_hitPosition - _origin).LengthSquared() > _minimumArmDistance * _minimumArmDistance) //only explode if beyond arm distance
{
if (_shouldExplode)
{
CreateExplosion(_hitPosition, _direction, _explosionRadius, _explosionDamage);
}
if (_shouldPenetrate)
{
GetObjectsToPenetrate(_hitPosition, _hitPosition + _direction * _penetrationRange);
}
_targetHit = true;
Kill();
}
else
{
_targetHit = true;
_hitPosition = _position;
Kill();
}
return;
}
// implied else
var line = new LineD(from, to);
MyGamePruningStructure.GetVoxelMapsOverlappingRay(ref line, _voxelOverlap);
foreach (var result in _voxelOverlap)
{
MatrixD matrix;
MatrixD matrixInv;
Vector3 sizeInMetersHalf;
MyPlanet planet = result.Element as MyPlanet;
IMyVoxelMap voxelMap = result.Element as IMyVoxelMap;
if (planet == null && voxelMap == null)
{
continue;
}
if (planet != null)
{
matrix = planet.WorldMatrix;
matrixInv = planet.PositionComp.WorldMatrixInvScaled;
sizeInMetersHalf = planet.SizeInMetresHalf;
}
else
{
matrix = voxelMap.WorldMatrix;
matrixInv = voxelMap.PositionComp.WorldMatrixInvScaled;
sizeInMetersHalf = new Vector3(voxelMap.Storage.Size) * 0.5f;
}
Vector3 localTo;
Vector3 localFrom;
MyVoxelCoordSystems.WorldPositionToLocalPosition(from, matrix, matrixInv, sizeInMetersHalf, out localFrom);
MyVoxelCoordSystems.WorldPositionToLocalPosition(to, matrix, matrixInv, sizeInMetersHalf, out localTo);
var localLine = new LineD(localFrom, localTo);
if (planet != null && ((IMyStorage)(planet.Storage)).Intersect(ref localLine))
{
MyLog.Default.WriteLine(">> Railgun projectile hit planet");
_hitPosition = _position;
_targetHit = true;
Kill();
return;
}
// This is very broken
//if (voxelMap != null && ((IMyStorage)(voxelMap.Storage)).Intersect(ref localLine))
//{
// MyLog.Default.WriteLine(">> Railgun projectile hit voxel");
// _hitPosition = _position;
// _targetHit = true;
// Kill();
// return;
//}
}
}