/// <summary>
/// Starts the explosion.
/// </summary>
/// <param name="damage"></param>
/// <param name="type"></param>
/// <param name="explosionSphere"></param>
/// <param name="lifespanInMiliseconds"></param>
/// <param name="explosionForceDirection"></param>
/// <param name="groupMask"></param>
/// <param name="createExplosionDebris"></param>
/// <param name="cascadeLevel"></param>
/// <param name="hitEntity"></param>
/// <param name="particleScale"></param>
/// <param name="ownerEntity"></param>
/// <param name="affectVoxels"></param>
/// <param name="applyForceAndDamage"></param>
/// <param name="createDecals"></param>
/// <param name="direction">If applicable, gives the direction of the explosion, e.g. when it was caused by a missile (with its moving direction).</param>
public void Start(ref MyExplosionInfo explosionInfo)
{
//MyCommonDebugUtils.AssertDebug(explosionInfo.ExplosionSphere.Radius <= MyExplosionsConstants.EXPLOSION_RADIUS_MAX);
MyCommonDebugUtils.AssertDebug(explosionInfo.ExplosionSphere.Radius > 0);
MyRender.GetRenderProfiler().StartProfilingBlock("MyExplosion.Start");
m_explosionSphere = explosionInfo.ExplosionSphere;
m_elapsedMiliseconds = 0;
m_lifespanInMiliseconds = explosionInfo.LifespanMiliseconds;
if (explosionInfo.PlaySound)
{
MyRender.GetRenderProfiler().StartProfilingBlock("Sound");
// Play explosion sound
if (m_explosionCue != null && m_explosionCue.Value.IsPlaying)
{
m_explosionCue.Value.Stop(SharpDX.XACT3.StopFlags.Immediate);
}
m_explosionCue = MyAudio.AddCue3D(GetCueEnumByExplosionType(explosionInfo.ExplosionType), m_explosionSphere.Center, Vector3.Zero, Vector3.Zero, Vector3.Zero);
MyRender.GetRenderProfiler().EndProfilingBlock();
}
MyRender.GetRenderProfiler().StartProfilingBlock("Light");
// Light of explosion
/*
* m_light = MyLights.AddLight();
* if (m_light != null)
* {
* m_light.Start(MyLight.LightTypeEnum.PointLight, m_explosionSphere.Center, MyExplosionsConstants.EXPLOSION_LIGHT_COLOR, 1, Math.Min(m_explosionSphere.Radius * 8.0f, MyLightsConstants.MAX_POINTLIGHT_RADIUS));
* m_light.Intensity = 2.0f;
* } */
MyRender.GetRenderProfiler().EndProfilingBlock();
// close explosion check
bool close = IsExplosionClose(explosionInfo.ExplosionSphere);
MyParticleEffectsIDEnum newParticlesType;
switch (explosionInfo.ExplosionType)
{
case MyExplosionTypeEnum.SMALL_SHIP_EXPLOSION:
// Create metal debris objects thrown from the explosion
// This must be called before ApplyExplosionForceAndDamage (because there we apply impulses to the debris)
// Throw a lot of debrises, more than only if some metalic object is hit (because this is destruction of a ship)
//MyPhysObjectExplosionDebrises.CreateExplosionDebris(m_explosionSphere.Center, 1);
newParticlesType = MyParticleEffectsIDEnum.Explosion_Smallship;
break;
case MyExplosionTypeEnum.MISSILE_EXPLOSION:
newParticlesType =
// ? MyParticleEffectsIDEnum.Explosion_Missile_Close
MyParticleEffectsIDEnum.Explosion_Missile;
break;
case MyExplosionTypeEnum.BOMB_EXPLOSION:
case MyExplosionTypeEnum.GRAVITY_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Bomb;
break;
case MyExplosionTypeEnum.AMMO_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Ammo;
break;
case MyExplosionTypeEnum.BLASTER_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Blaster;
break;
case MyExplosionTypeEnum.BIOCHEM_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_BioChem;
break;
case MyExplosionTypeEnum.EMP_EXPLOSION:
case MyExplosionTypeEnum.FLASH_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_EMP;
break;
case MyExplosionTypeEnum.METEOR_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Meteor;
break;
case MyExplosionTypeEnum.NUCLEAR_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Nuclear;
break;
case MyExplosionTypeEnum.PLASMA_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Plasma;
break;
case MyExplosionTypeEnum.SMALL_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_SmallPrefab;
break;
case MyExplosionTypeEnum.LARGE_SHIP_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Huge;
break;
case MyExplosionTypeEnum.LARGE_PREFAB_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Large;
break;
case MyExplosionTypeEnum.MEDIUM_PREFAB_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Medium;
break;
case MyExplosionTypeEnum.ASTEROID_EXPLOSION:
newParticlesType = MyParticleEffectsIDEnum.Explosion_Asteroid;
break;
default:
throw new System.NotImplementedException();
break;
}
if (explosionInfo.Damage > 0)
{
MyRender.GetRenderProfiler().StartProfilingBlock("Voxel or collision");
// If explosion sphere intersects a voxel map, we need to cut out a sphere, spawn debrises, etc
MyVoxelMap voxelMap = explosionInfo.AffectVoxels && explosionInfo.EmpDamage == 0 ? MyVoxelMaps.GetOverlappingWithSphere(ref m_explosionSphere) : null;
if (voxelMap != null)
{
// Dirty explosion with a lot of dust
MyMwcVoxelMaterialsEnum?voxelMaterial = null;
float voxelContentRemovedInPercent = 0;
bool createDebris = true; // We want to create debris
if (explosionInfo.HitEntity != null) // but not when we hit prefab
{
createDebris &= explosionInfo.HitEntity is MyVoxelMap;
}
//cut off
BoundingSphere voxelExpSphere = new BoundingSphere(explosionInfo.VoxelExplosionCenter, m_explosionSphere.Radius * explosionInfo.VoxelCutoutScale);
if (MyVoxelGenerator.CutOutSphereFast(voxelMap, voxelExpSphere, out voxelContentRemovedInPercent, out voxelMaterial, (explosionInfo.OwnerEntity is MySmallShip && explosionInfo.OwnerEntity == Managers.Session.MySession.PlayerShip), MyFakes.VOXELS_REMOVE_RATIO))
{
if (explosionInfo.HitEntity is MyVoxelMap)
{
HUD.MyHud.ShowIndestructableAsteroidNotification();
}
createDebris = false; // and no debris when voxel is indestructible
}
// Only if at least something was removed from voxel map
// If voxelContentRemovedInPercent is more than zero than also voxelMaterial shouldn't be null, but I rather check both of them.
if ((voxelContentRemovedInPercent > 0) && (voxelMaterial != null))
{
//remove decals
MyDecals.HideTrianglesAfterExplosion(voxelMap, ref voxelExpSphere);
MyRender.GetRenderProfiler().StartProfilingBlock("CreateDebris");
if (explosionInfo.CreateDebris && (createDebris || explosionInfo.ForceDebris) && MyRenderConstants.RenderQualityProfile.ExplosionDebrisCountMultiplier > 0)
{
// Create debris rocks thrown from the explosion
// This must be called before ApplyExplosionForceAndDamage (because there we apply impulses to the debris)
MyExplosionDebrisVoxel.CreateExplosionDebris(ref voxelExpSphere, voxelContentRemovedInPercent, voxelMaterial.Value, explosionInfo.GroupMask, voxelMap);
}
MyRender.GetRenderProfiler().EndProfilingBlock();
MyRender.GetRenderProfiler().StartProfilingBlock("CreateParticleEffect");
MyParticleEffect explosionEffect = MyParticlesManager.CreateParticleEffect((int)MyParticleEffectsIDEnum.MaterialExplosion_Destructible);
explosionEffect.WorldMatrix = Matrix.CreateTranslation(voxelExpSphere.Center);
explosionEffect.UserRadiusMultiplier = voxelExpSphere.Radius;
MyRender.GetRenderProfiler().EndProfilingBlock();
}
}
MyRender.GetRenderProfiler().EndProfilingBlock();
}
if (explosionInfo.Damage > 0)
{
// Create dirt decals in player's cockpit glass
MyRender.GetRenderProfiler().StartProfilingBlock("Cockpit Decals");
CreateDirtDecalOnCockpitGlass(ref m_explosionSphere);
MyRender.GetRenderProfiler().EndProfilingBlock();
}
if (DEBUG_EXPLOSIONS)
{
MyRender.GetRenderProfiler().EndProfilingBlock();
return;
}
if (explosionInfo.Damage > 0)
{
BoundingSphere influenceExplosionSphere = m_explosionSphere;
influenceExplosionSphere.Radius *= MyExplosionsConstants.EXPLOSION_RADIUS_MULTPLIER_FOR_IMPULSE;
for (int i = 0; i < explosionInfo.CascadeLevel; i++)
{
influenceExplosionSphere.Radius *= MyExplosionsConstants.EXPLOSION_CASCADE_FALLOFF;
}
// Throws surrounding objects away from centre of the explosion.
if (explosionInfo.ApplyForceAndDamage)
{
if (explosionInfo.ExplosionType == MyExplosionTypeEnum.LARGE_PREFAB_EXPLOSION ||
explosionInfo.ExplosionType == MyExplosionTypeEnum.LARGE_SHIP_EXPLOSION ||
explosionInfo.ExplosionType == MyExplosionTypeEnum.MEDIUM_PREFAB_EXPLOSION)
{
DisableContainedDummyParticles(ref explosionInfo);
}
explosionInfo.StrengthImpulse = MyExplosionsConstants.EXPLOSION_STRENGTH_IMPULSE * m_explosionSphere.Radius / 20;
explosionInfo.StrengthAngularImpulse = MyExplosionsConstants.EXPLOSION_STRENGTH_ANGULAR_IMPULSE;
explosionInfo.HitEntity = explosionInfo.HitEntity != null?explosionInfo.HitEntity.GetBaseEntity() : null;
MyRender.GetRenderProfiler().StartProfilingBlock("ApplyExplosionForceAndDamage");
MyEntities.ApplyExplosionForceAndDamage(ref explosionInfo);
MyRender.GetRenderProfiler().EndProfilingBlock();
}
// Look for objects in explosion radius
BoundingBox boundingBox;
BoundingBox.CreateFromSphere(ref influenceExplosionSphere, out boundingBox);
//if (explosionInfo.CreateDecals && explosionInfo.Direction.HasValue && explosionInfo.EmpDamage == 0)
//{
// CreateDecals(explosionInfo.Direction.Value);
//}
}
if (explosionInfo.CreateParticleEffect)
{
MyRender.GetRenderProfiler().StartProfilingBlock("Particles");
if (explosionInfo.CustomEffect != null)
{
if (explosionInfo.CustomEffect.ParticleID == 0)
{
explosionInfo.CustomEffect.ParticleID = (int)newParticlesType;
}
//Reload effect
explosionInfo.CustomEffect.Enabled = false;
explosionInfo.CustomEffect.Enabled = true;
}
else
{
// Explosion particles
GenerateExplosionParticles(newParticlesType, m_explosionSphere, explosionInfo.ParticleScale);
}
MyRender.GetRenderProfiler().EndProfilingBlock();
}
MyRender.GetRenderProfiler().EndProfilingBlock();
/*
* // When MyAmmoBase entity is closed to explosion it will explode
* if (entity is MyAmmoBase)
* {
* (entity as MyAmmoBase).ExplodeCascade(cascadeLevel + 1);
* }
*/
// Smut decals - must be called after the explosion, after voxels are cutted out
/*if ((intersection.PhysObject is MyVoxelMap) == false)
* {
* if (intersection.PhysObject is MyCockpitGlass)
* {
* // Change phys object so rest of the code will think we hit the parent
* // Same fix is in projectile too - because cockpit glass is only helper object, we don't use it for real rendering and stuff
* // And if not changed, it can make problem in "phys object decals"
* intersection.PhysObject = intersection.PhysObject.Parent;
* }
*
* // Create explosion smut decal on model we hit by this missile
* MyDecals.Add(
* MyDecalTexturesEnum.ExplosionSmut,
* MyMwcUtils.GetRandomFloat(m_explosionSphere.Radius * 0.7f, m_explosionSphere.Radius * 1.3f),
* MyMwcUtils.GetRandomRadian(),
* GetSmutDecalRandomColor(),
* true,
* ref intersection);
* }
* else
* {
* // Creating explosion smut decal on voxel is more complicated than on voxel. We will project few lines
* // from explosion epicentrum to the surounding world (random directions) and place decal where intersection detected.
* //if (knownMissileDirection != null)
* //{
* // MyLine linePrologned = new MyLine(knownIntersection.Value.IntersectionPointInObjectSpace,
* // knownIntersection.Value.IntersectionPointInObjectSpace + knownMissileDirection.Value * MyExplosionsConstants.EXPLOSION_RANDOM_RADIUS_MAX * 2,
* // true);
* // MyLineTriangleIntersectionResult intersectionForSmut = knownIntersection.Value.VoxelMap.GetIntersectionWithLine(ref linePrologned);
* // if (intersectionForSmut.Found == true)
* // {
* // MyDecals.Add(
* // MyDecalTexturesEnum.ExplosionSmut,
* // MyMwcUtils.GetRandomFloat(m_explosionSphere.Radius * 0.5f, m_explosionSphere.Radius * 1.0f),
* // MyMwcUtils.GetRandomRadian(),
* // GetSmutDecalRandomColor(),
* // false,
* // ref intersectionForSmut);
* // }
* //}
* }*/
// Generate dust particles that will stay in place of the explosion
//doesnt look good in final
//GenerateStatisDustParticles(m_explosionSphere);
}