void FixedUpdate()
{
if (!gameObject.activeInHierarchy)
{
return;
}
//floating origin and velocity offloading corrections
if (!FloatingOrigin.Offset.IsZero() || !Krakensbane.GetFrameVelocity().IsZero())
{
transform.position -= FloatingOrigin.OffsetNonKrakensbane;
prevPosition -= FloatingOrigin.OffsetNonKrakensbane;
startPosition -= FloatingOrigin.OffsetNonKrakensbane;
}
distanceFromStart = Vector3.Distance(transform.position, startPosition);
if (Time.time - startTime < stayTime && transform.parent != null)
{
transform.rotation = transform.parent.rotation;
transform.position = spawnTransform.position;
//+(transform.parent.rigidbody.velocity*Time.fixedDeltaTime);
}
else
{
if (transform.parent != null && parentRB)
{
transform.parent = null;
rb.isKinematic = false;
rb.velocity = parentRB.velocity + Krakensbane.GetFrameVelocityV3f();
}
}
if (rb && !rb.isKinematic)
{
//physics
if (FlightGlobals.RefFrameIsRotating)
{
rb.velocity += FlightGlobals.getGeeForceAtPosition(transform.position) * Time.fixedDeltaTime;
}
//guidance and attitude stabilisation scales to atmospheric density.
float atmosMultiplier =
Mathf.Clamp01(2.5f *
(float)
FlightGlobals.getAtmDensity(FlightGlobals.getStaticPressure(transform.position),
FlightGlobals.getExternalTemperature(), FlightGlobals.currentMainBody));
//model transform. always points prograde
transform.rotation = Quaternion.RotateTowards(transform.rotation,
Quaternion.LookRotation(rb.velocity + Krakensbane.GetFrameVelocity(), transform.up),
atmosMultiplier * (0.5f * (Time.time - startTime)) * 50 * Time.fixedDeltaTime);
if (Time.time - startTime < thrustTime && Time.time - startTime > stayTime)
{
thrustVector.x = randomThrustDeviation * (1 - (Mathf.PerlinNoise(4 * Time.time, randThrustSeed) * 2)) / massScalar; //this needs to scale w/ rocket mass, or light projectiles will be
thrustVector.y = randomThrustDeviation * (1 - (Mathf.PerlinNoise(randThrustSeed, 4 * Time.time) * 2)) / massScalar; //far more affected than heavier ones
rb.AddRelativeForce(thrustVector);
}//0.012/rocketmass - use .012 as baseline, it's the mass of hte hydra, which the randomTurstdeviation was originally calibrated for
}
if (Time.time - startTime > thrustTime)
{
foreach (var pe in pEmitters)
{
if (pe != null)
{
pe.emit = false;
}
}
}
if (Time.time - startTime > 0.1f + stayTime)
{
hasPenetrated = true;
hasDetonated = false;
penTicker = 0;
currPosition = transform.position;
float dist = (currPosition - prevPosition).magnitude;
RocketRay = new Ray(prevPosition, currPosition - prevPosition);
var hits = Physics.RaycastAll(RocketRay, dist, 9076737);
if (hits.Length > 0)
{
var orderedHits = hits.OrderBy(x => x.distance);
using (var hitsEnu = orderedHits.GetEnumerator())
{
while (hitsEnu.MoveNext())
{
if (!hasPenetrated || hasDetonated)
{
break;
}
RaycastHit hit = hitsEnu.Current;
Part hitPart = null;
KerbalEVA hitEVA = null;
try
{
hitPart = hit.collider.gameObject.GetComponentInParent <Part>();
hitEVA = hit.collider.gameObject.GetComponentUpwards <KerbalEVA>();
}
catch (NullReferenceException e)
{
Debug.LogWarning("[BDArmory.BDArmory]:NullReferenceException for Kinetic Hit: " + e.Message);
return;
}
if (hitEVA != null)
{
hitPart = hitEVA.part;
// relative velocity, separate from the below statement, because the hitpart might be assigned only above
if (hitPart.rb != null)
{
impactVelocity = (rb.velocity - (hitPart.rb.velocity + Krakensbane.GetFrameVelocityV3f())).magnitude;
}
else
{
impactVelocity = rb.velocity.magnitude;
}
ProjectileUtils.ApplyDamage(hitPart, hit, 1, 1, caliber, rocketMass, impactVelocity, bulletDmgMult, distanceFromStart, explosive, false, sourceVessel, rocketName);
break;
}
if (hitPart != null && hitPart.vessel == sourceVessel)
{
continue; //avoid autohit;
}
Vector3 impactVector = rb.velocity;
if (hitPart != null && hitPart.rb != null)
{
// using relative velocity vector instead of just rocket velocity
// since KSP vessels can easily be moving faster than rockets
impactVector = rb.velocity - (hitPart.rb.velocity + Krakensbane.GetFrameVelocityV3f());
}
float hitAngle = Vector3.Angle(impactVector, -hit.normal);
if (ProjectileUtils.CheckGroundHit(hitPart, hit, caliber))
{
ProjectileUtils.CheckBuildingHit(hit, rocketMass, rb.velocity, bulletDmgMult);
Detonate(hit.point, false);
return;
}
impactVelocity = impactVector.magnitude;
if (gravitic)
{
var ME = hitPart.FindModuleImplementing <ModuleMassAdjust>();
if (ME == null)
{
ME = (ModuleMassAdjust)hitPart.AddModule("ModuleMassAdjust");
}
ME.massMod += massMod;
ME.duration += BDArmorySettings.WEAPON_FX_DURATION;
}
if (concussion)
{
hitPart.rb.AddForceAtPosition(impactVector.normalized * impulse, hit.point, ForceMode.Acceleration);
Detonate(hit.point, false);
hasDetonated = true;
return; //impulse rounds shouldn't penetrate/do damage
}
float anglemultiplier = (float)Math.Cos(Math.PI * hitAngle / 180.0);
float thickness = ProjectileUtils.CalculateThickness(hitPart, anglemultiplier);
float penetration = ProjectileUtils.CalculatePenetration(caliber, rocketMass, impactVelocity);
float penetrationFactor = ProjectileUtils.CalculateArmorPenetration(hitPart, anglemultiplier, hit, penetration, thickness, caliber);
if (penetration > thickness)
{
rb.velocity = rb.velocity * (float)Math.Sqrt(thickness / penetration);
if (penTicker > 0)
{
rb.velocity *= 0.55f;
}
}
if (penetrationFactor > 1)
{
hasPenetrated = true;
ProjectileUtils.ApplyDamage(hitPart, hit, 1, penetrationFactor, caliber, rocketMass, impactVelocity, bulletDmgMult, distanceFromStart, explosive, false, sourceVessel, rocketName);
penTicker += 1;
ProjectileUtils.CheckPartForExplosion(hitPart);
if (explosive)
{
transform.position += (rb.velocity * Time.fixedDeltaTime) / 3;
Detonate(transform.position, false);
hasDetonated = true;
}
}
else // stopped by armor
{
if (hitPart.rb != null && hitPart.rb.mass > 0)
{
float forceAverageMagnitude = impactVelocity * impactVelocity *
(1f / hit.distance) * rocketMass;
float accelerationMagnitude =
forceAverageMagnitude / (hitPart.vessel.GetTotalMass() * 1000);
hitPart.rb.AddForceAtPosition(impactVector.normalized * accelerationMagnitude, hit.point, ForceMode.Acceleration);
if (BDArmorySettings.DRAW_DEBUG_LABELS)
{
Debug.Log("[BDArmory.PooledRocket]: Force Applied " + Math.Round(accelerationMagnitude, 2) + "| Vessel mass in kgs=" + hitPart.vessel.GetTotalMass() * 1000 + "| rocket effective mass =" + rocketMass);
}
}
hasPenetrated = false;
ProjectileUtils.ApplyDamage(hitPart, hit, 1, penetrationFactor, caliber, rocketMass, impactVelocity, bulletDmgMult, distanceFromStart, explosive, false, sourceVessel, rocketName);
Detonate(hit.point, false);
hasDetonated = true;
}
if (penTicker >= 2)
{
Detonate(hit.point, false);
return;
}
if (rb.velocity.magnitude <= 100 && hasPenetrated && (Time.time - startTime > thrustTime))
{
if (BDArmorySettings.DRAW_DEBUG_LABELS)
{
Debug.Log("[BDArmory.PooledRocket]: Rocket ballistic velocity too low, stopping");
}
Detonate(hit.point, false);
return;
}
if (!hasPenetrated || hasDetonated)
{
break;
}
}
}
}
}
else if (FlightGlobals.getAltitudeAtPos(currPosition) <= 0)
{
Detonate(currPosition, false);
}
prevPosition = currPosition;
if (Time.time - startTime > lifeTime) // life's 10s, quite a long time for faster rockets
{
Detonate(transform.position, true);
}
if (distanceFromStart >= maxAirDetonationRange)//rockets are performance intensive, lets cull those that have flown too far away
{
Detonate(transform.position, false);
}
if (ProximityAirDetonation(distanceFromStart))
{
Detonate(transform.position, false);
}
}
/// <summary>
/// Check for bullet collision in the upcoming period.
/// </summary>
/// <param name="period">Period to consider, typically Time.fixedDeltaTime</param>
/// <param name="reverse">Also perform raycast in reverse to detect collisions from rays starting within an object.</param>
/// <returns>true if a collision is detected, false otherwise.</returns>
public bool CheckBulletCollision(float period, bool reverse = false)
{
//reset our hit variables to default state
hasPenetrated = true;
hasDetonated = false;
hasRicocheted = false;
penTicker = 0;
currPosition = transform.position;
float dist = currentVelocity.magnitude * period;
bulletRay = new Ray(currPosition, currentVelocity + 0.5f * period * FlightGlobals.getGeeForceAtPosition(transform.position));
var hitCount = Physics.RaycastNonAlloc(bulletRay, hits, dist, 9076737);
if (hitCount == hits.Length) // If there's a whole bunch of stuff in the way (unlikely), then we need to increase the size of our hits buffer.
{
hits = Physics.RaycastAll(bulletRay, dist, 9076737);
hitCount = hits.Length;
}
int reverseHitCount = 0;
if (reverse)
{
reverseHitCount = Physics.RaycastNonAlloc(new Ray(currPosition + currentVelocity * period, -currentVelocity), reverseHits, dist, 9076737);
if (reverseHitCount == reverseHits.Length)
{
reverseHits = Physics.RaycastAll(new Ray(currPosition + currentVelocity * period, -currentVelocity), dist, 9076737);
reverseHitCount = reverseHits.Length;
}
for (int i = 0; i < reverseHitCount; ++i)
{
reverseHits[i].distance = dist - reverseHits[i].distance;
}
}
if (hitCount + reverseHitCount > 0)
{
var orderedHits = hits.Take(hitCount).Concat(reverseHits.Take(reverseHitCount)).OrderBy(x => x.distance);
using (var hitsEnu = orderedHits.GetEnumerator())
{
RaycastHit hit;
Part hitPart;
KerbalEVA hitEVA;
while (hitsEnu.MoveNext())
{
if (!hasPenetrated || hasRicocheted || hasDetonated)
{
return(true);
}
hit = hitsEnu.Current;
hitPart = null;
hitEVA = null;
try
{
hitPart = hit.collider.gameObject.GetComponentInParent <Part>();
hitEVA = hit.collider.gameObject.GetComponentUpwards <KerbalEVA>();
}
catch (NullReferenceException e)
{
Debug.Log("[BDArmory.PooledBullet]:NullReferenceException for Ballistic Hit: " + e.Message);
return(true);
}
if (hitPart != null && ProjectileUtils.IsIgnoredPart(hitPart))
{
continue; // Ignore ignored parts.
}
if (hitEVA != null)
{
hitPart = hitEVA.part;
// relative velocity, separate from the below statement, because the hitpart might be assigned only above
if (hitPart.rb != null)
{
impactVelocity = (currentVelocity * dragVelocityFactor - (hitPart.rb.velocity + Krakensbane.GetFrameVelocityV3f())).magnitude;
}
else
{
impactVelocity = currentVelocity.magnitude * dragVelocityFactor;
}
distanceTraveled += hit.distance;
ProjectileUtils.ApplyDamage(hitPart, hit, 1, 1, caliber, bulletMass, impactVelocity, bulletDmgMult, distanceTraveled, explosive, incendiary, hasRicocheted, sourceVessel, bullet.name, team);
ExplosiveDetonation(hitPart, hit, bulletRay);
KillBullet(); // Kerbals are too thick-headed for penetration...
return(true);
}
if (hitPart != null && hitPart.vessel == sourceVessel)
{
continue; //avoid autohit;
}
Vector3 impactVector = currentVelocity;
if (hitPart != null && hitPart.rb != null)
{
// using relative velocity vector instead of just bullet velocity
// since KSP vessels might move faster than bullets
impactVector = currentVelocity * dragVelocityFactor - (hitPart.rb.velocity + Krakensbane.GetFrameVelocityV3f());
}
float hitAngle = Vector3.Angle(impactVector, -hit.normal);
if (ProjectileUtils.CheckGroundHit(hitPart, hit, caliber))
{
ProjectileUtils.CheckBuildingHit(hit, bulletMass, currentVelocity, bulletDmgMult);
if (!RicochetScenery(hitAngle))
{
ExplosiveDetonation(hitPart, hit, bulletRay);
KillBullet();
distanceTraveled += hit.distance;
return(true);
}
else
{
DoRicochet(hitPart, hit, hitAngle, hit.distance / dist, period);
return(true);
}
}
//Standard Pipeline Hitpoints, Armor and Explosives
impactVelocity = impactVector.magnitude;
if (massMod != 0)
{
var ME = hitPart.FindModuleImplementing <ModuleMassAdjust>();
if (ME == null)
{
ME = (ModuleMassAdjust)hitPart.AddModule("ModuleMassAdjust");
}
ME.massMod += massMod;
ME.duration += BDArmorySettings.WEAPON_FX_DURATION;
}
if (impulse != 0 && hitPart.rb != null)
{
hitPart.rb.AddForceAtPosition(impactVector.normalized * impulse, hit.point, ForceMode.Acceleration);
ProjectileUtils.ApplyScore(hitPart, sourceVessel, distanceTraveled, 0, bullet.name);
break; //impulse rounds shouldn't penetrate/do damage
}
float anglemultiplier = (float)Math.Cos(Math.PI * hitAngle / 180.0);
float thickness = ProjectileUtils.CalculateThickness(hitPart, anglemultiplier);
float penetration = ProjectileUtils.CalculatePenetration(caliber, bulletMass, impactVelocity, apBulletMod);
float penetrationFactor = ProjectileUtils.CalculateArmorPenetration(hitPart, anglemultiplier, hit, penetration, thickness, caliber);
if (penetration > thickness)
{
currentVelocity = currentVelocity * (float)Math.Sqrt(thickness / penetration);
if (penTicker > 0)
{
currentVelocity *= 0.55f;
}
flightTimeElapsed -= period;
}
if (penetrationFactor >= 2)
{
//its not going to bounce if it goes right through
hasRicocheted = false;
}
else
{
if (RicochetOnPart(hitPart, hit, hitAngle, impactVelocity, hit.distance / dist, period))
{
hasRicocheted = true;
}
}
if (penetrationFactor > 1 && !hasRicocheted) //fully penetrated continue ballistic damage
{
hasPenetrated = true;
ProjectileUtils.ApplyDamage(hitPart, hit, 1, penetrationFactor, caliber, bulletMass, impactVelocity, bulletDmgMult, distanceTraveled, explosive, incendiary, hasRicocheted, sourceVessel, bullet.name, team);
penTicker += 1;
ProjectileUtils.CheckPartForExplosion(hitPart);
//Explosive bullets that penetrate should explode shortly after
//if penetration is very great, they will have moved on
//checking velocity as they would not be able to come out the other side
//if (explosive && penetrationFactor < 3 || currentVelocity.magnitude <= 800f)
if (explosive)
{
//move bullet
transform.position += (currentVelocity * period) / 3;
distanceTraveled += hit.distance;
ExplosiveDetonation(hitPart, hit, bulletRay);
hasDetonated = true;
KillBullet();
return(true);
}
}
else if (!hasRicocheted) // explosive bullets that get stopped by armor will explode
{
if (hitPart.rb != null && hitPart.rb.mass > 0)
{
float forceAverageMagnitude = impactVelocity * impactVelocity *
(1f / hit.distance) * (bulletMass - tntMass);
float accelerationMagnitude =
forceAverageMagnitude / (hitPart.vessel.GetTotalMass() * 1000);
hitPart.rb.AddForceAtPosition(impactVector.normalized * accelerationMagnitude, hit.point, ForceMode.Acceleration);
if (BDArmorySettings.DRAW_DEBUG_LABELS)
{
Debug.Log("[BDArmory.PooledBullet]: Force Applied " + Math.Round(accelerationMagnitude, 2) + "| Vessel mass in kgs=" + hitPart.vessel.GetTotalMass() * 1000 + "| bullet effective mass =" + (bulletMass - tntMass));
}
}
distanceTraveled += hit.distance;
hasPenetrated = false;
ProjectileUtils.ApplyDamage(hitPart, hit, 1, penetrationFactor, caliber, bulletMass, impactVelocity, bulletDmgMult, distanceTraveled, explosive, incendiary, hasRicocheted, sourceVessel, bullet.name, team);
ExplosiveDetonation(hitPart, hit, bulletRay);
hasDetonated = true;
KillBullet();
return(true);
}
/////////////////////////////////////////////////////////////////////////////////
// penetrated after a few ticks
/////////////////////////////////////////////////////////////////////////////////
//penetrating explosive
//richochets
if ((penTicker >= 2 && explosive) || (hasRicocheted && explosive))
{
//detonate
ExplosiveDetonation(hitPart, hit, bulletRay, airDetonation);
distanceTraveled += hit.distance;
return(true);
}
//bullet should not go any further if moving too slowly after hit
//smaller caliber rounds would be too deformed to do any further damage
if (currentVelocity.magnitude <= 100 && hasPenetrated)
{
if (BDArmorySettings.DRAW_DEBUG_LABELS)
{
Debug.Log("[BDArmory.PooledBullet]: Bullet Velocity too low, stopping");
}
KillBullet();
distanceTraveled += hit.distance;
return(true);
}
} //end While
} //end enumerator
} //end of hits
return(false);
}
