/// <summary>
/// Updates resource.
/// </summary>
public override void UpdateBeforeSimulation()
{
try
{
MyRender.GetRenderProfiler().StartProfilingBlock("MyMissile.UpdateBeforeSimulation");
//Large ship weapons wont make bots curious
if ((!(OwnerEntity is MyLargeShipMissileLauncherBarrel)) && MyMwcUtils.HasValidLength(this.WorldMatrix.Translation - m_previousPosition))
{
MyLine line = new MyLine(this.WorldMatrix.Translation, m_previousPosition);
MyDangerZones.Instance.Notify(line, OwnerEntity);
}
if (m_isExploded)
{
// Create explosion
MyExplosion newExplosion = MyExplosions.AddExplosion();
if (newExplosion != null)
{
float radius = m_ammoProperties.ExplosionRadius;
// Explicitly on Marek's request (ticket 4740)
bool amplifyRadius = m_collidedEntity != null?MyFactions.GetFactionsRelation(m_collidedEntity.Faction, Faction) != MyFactionRelationEnum.Friend : false;
if (amplifyRadius)
{
radius *= 2;
}
BoundingSphere explosionSphere = new BoundingSphere(m_collisionPoint.HasValue ? m_collisionPoint.Value : GetPosition(), radius);
// Call main explosion starter
MyExplosionInfo info = new MyExplosionInfo()
{
PlayerDamage = m_ammoProperties.HealthDamage,
Damage = m_ammoProperties.ShipDamage,
EmpDamage = m_ammoProperties.EMPDamage,
ExplosionType = m_explosionType,
ExplosionSphere = explosionSphere,
LifespanMiliseconds = MyExplosionsConstants.EXPLOSION_LIFESPAN,
ExplosionForceDirection = MyExplosionForceDirection.EXPLOSION,
GroupMask = Physics.GroupMask,
CascadeLevel = CascadedExplosionLevel,
HitEntity = m_collidedEntity,
ParticleScale = 1.5f,
OwnerEntity = this.OwnerEntity,
Direction = WorldMatrix.Forward,
VoxelExplosionCenter = explosionSphere.Center + m_ammoProperties.ExplosionRadius * WorldMatrix.Forward * 0.5f,
ExplosionFlags = MyExplosionFlags.AFFECT_VOXELS | MyExplosionFlags.APPLY_FORCE_AND_DAMAGE | MyExplosionFlags.CREATE_DEBRIS | MyExplosionFlags.CREATE_DECALS | MyExplosionFlags.CREATE_PARTICLE_EFFECT,
VoxelCutoutScale = amplifyRadius ? 0.5f : 1.0f,
PlaySound = true,
};
newExplosion.Start(ref info);
}
if (m_collidedEntity != null && !m_collidedEntity.IsExploded())
{
m_collidedEntity.Physics.AddForce(
MyPhysicsForceType.APPLY_WORLD_IMPULSE_AND_WORLD_ANGULAR_IMPULSE,
WorldMatrix.Forward * MyMissileConstants.HIT_STRENGTH_IMPULSE,
GetPosition() + MyMwcUtils.GetRandomVector3Normalized() * 2,
MyMissileConstants.HIT_STRENGTH_IMPULSE * MyMwcUtils.GetRandomVector3Normalized());
m_collidedEntity.OnClose -= m_collidedEntity_OnClose;
}
MarkForClose();
return;
}
bool firstTargetting = m_elapsedMiliseconds == 0;
base.UpdateBeforeSimulation();
m_missileTargetUpdate += MyConstants.PHYSICS_STEP_SIZE_IN_MILLISECONDS;
if (m_missileTargetUpdate >= MyGuidedMissileConstants.MISSILE_TARGET_UPDATE_INTERVAL_IN_MS || firstTargetting)
{
m_missileTargetUpdate = 0;
switch (m_missileType)
{
case MyMwcObjectBuilder_SmallShip_Ammo_TypesEnum.Guided_Missile_Radar_Detection:
{
MySmallShip targetShip = m_targetEntity as MySmallShip;
if (targetShip != null && targetShip.IsRadarJammed())
{
m_targetEntity = null;
}
}
break;
case MyMwcObjectBuilder_SmallShip_Ammo_TypesEnum.Guided_Missile_Engine_Detection:
{
m_targetEntities.Clear();
Matrix proj = Matrix.CreateOrthographic(MyGuidedMissileConstants.ENGINE_GUIDED_MISSILE_RADIUS, MyGuidedMissileConstants.ENGINE_GUIDED_MISSILE_RADIUS, 0, 1000);
Matrix view = Matrix.CreateLookAt(GetPosition(), GetPosition() + WorldMatrix.Forward, WorldMatrix.Up);
m_visualFrustum.Matrix = view * proj;
MyEntities.GetAllIntersectionWithBoundingFrustum(ref m_visualFrustum, m_targetEntities);
if (m_targetEntities.Contains(m_targetEntity))
{
break;
}
MyEntity target = null;
float closestToMissileDirection = float.MaxValue;
foreach (MyEntity entity in m_targetEntities)
{
if (CanTarget(entity))
{
MySmallShip targetShip = entity as MySmallShip;
if (targetShip != null)
{
if ((targetShip.IsEngineTurnedOff()))
{
continue;
}
}
Vector3 targetPos = entity.GetPosition();
Vector3 missilePos = this.GetPosition();
Vector3 missilePosEnd = this.GetPosition() + this.WorldMatrix.Forward * 10000;
Vector3 closestPos = MyUtils.GetClosestPointOnLine(ref missilePos, ref missilePosEnd, ref targetPos);
float distance = Vector3.Distance(closestPos, targetPos);
if (distance < closestToMissileDirection)
{
closestToMissileDirection = distance;
target = entity;
}
}
}
UpdateTarget(target);
}
break;
case MyMwcObjectBuilder_SmallShip_Ammo_TypesEnum.Guided_Missile_Visual_Detection:
{
Matrix projectionMatrix = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(MyGuidedMissileConstants.VISUAL_GUIDED_MISSILE_FOV), 1, 10, MyGuidedMissileConstants.VISUAL_GUIDED_MISSILE_RANGE);
m_visualFrustum.Matrix = Matrix.Invert(WorldMatrix) * projectionMatrix;
m_targetEntities.Clear();
MyEntities.GetAllIntersectionWithBoundingFrustum(ref m_visualFrustum, m_targetEntities);
int testsLimit = 8;
if (m_targetEntities.Contains(m_targetEntity))
{
break;
}
MyEntity target = null; //looks better if missile gets "lost"
float closestToMissileDirection = float.MaxValue;
foreach (MyEntity entity in m_targetEntities)
{
if (!CanTarget(entity))
{
continue;
}
if (testsLimit-- == 0)
{
break;
}
if (MyEnemyTargeting.CanSee(this, entity) == null)
{
Vector3 targetPos = entity.GetPosition();
Vector3 missilePos = this.GetPosition();
Vector3 missilePosEnd = this.GetPosition() + this.WorldMatrix.Forward * 10000;
Vector3 closestPos = MyUtils.GetClosestPointOnLine(ref missilePos, ref missilePosEnd, ref targetPos);
float distance = Vector3.Distance(closestPos, targetPos);
if (distance < closestToMissileDirection)
{
closestToMissileDirection = distance;
target = entity;
}
}
}
UpdateTarget(target);
}
break;
}
}
if ((m_initTime - m_elapsedMiliseconds) > 0)
{ //simulating missile launch and engine ignition
MyEntity owner = OwnerEntity;
if (owner != null)
{
Vector3 transformedInitDir = Vector3.TransformNormal(m_initDir, owner.WorldMatrix); //
Vector3 initialVelocity = Vector3.Zero;
if (owner.Physics != null)
{
initialVelocity = owner.Physics.LinearVelocity;
}
Physics.LinearVelocity = transformedInitDir * m_ammoProperties.InitialSpeed + initialVelocity;
}
}
else
{
// This will help blend "initial velocity" and "thrust velocity" so at the beginning missile is powered by initiatal velocity only, but later
float velocityBlend = MathHelper.Clamp((float)(m_elapsedMiliseconds - m_initTime) / m_blendVelocities, 0, 1);
if (velocityBlend == 1.0f)
{
m_actualSpeed = m_ammoProperties.DesiredSpeed;
}
else
{
float initialSpeed = 0.0f;
MyEntity owner = OwnerEntity;
if (owner != null)
{
if (owner.Physics != null)
{
initialSpeed = owner.Physics.LinearVelocity.Length();
}
}
m_actualSpeed = velocityBlend * m_ammoProperties.DesiredSpeed + ((1.0f - velocityBlend) * (m_ammoProperties.InitialSpeed + initialSpeed));
if (m_missileType != MyMwcObjectBuilder_SmallShip_Ammo_TypesEnum.Missile_Basic && m_smokeEffect == null)
{
// if (MyCamera.GetDistanceWithFOV(GetPosition()) < 150)
{
/*
* MyParticleEffect startEffect = MyParticlesManager.CreateParticleEffect((int)MyParticleEffectsIDEnum.Smoke_MissileStart);
* startEffect.WorldMatrix = WorldMatrix;
*/
m_smokeEffect = MyParticlesManager.CreateParticleEffect((int)MyParticleEffectsIDEnum.Smoke_Missile);
m_smokeEffect.WorldMatrix = WorldMatrix;
m_smokeEffect.AutoDelete = false;
}
}
}
m_desiredVelocity = GetDesiredVelocity(m_targetEntity);
Physics.LinearVelocity = m_desiredVelocity * m_actualSpeed * 1.0f;
}
Physics.AngularVelocity = Vector3.Zero;
if ((m_elapsedMiliseconds > m_missileTimeout) || (Vector3.Distance(GetPosition(), m_origin) >= m_maxTrajectory))
{
Explode();
return;
}
if (m_smokeEffect != null)
{
Matrix smokeMatrix = Matrix.CreateWorld(WorldMatrix.Translation - 0.5f * WorldMatrix.Forward, WorldMatrix.Forward, WorldMatrix.Up);
m_smokeEffect.WorldMatrix = smokeMatrix;
}
if (m_targetEntity != null)
{
if (m_targetEntity.Physics != null)
{
m_targetVelocity = m_targetEntity.Physics.LinearVelocity;
}
else
{
m_targetVelocity = Vector3.Zero;
}
}
}
finally
{
MyRender.GetRenderProfiler().EndProfilingBlock();
}
}