public DropItemContext(
ICharacter character,
IStaticWorldObject staticWorldObject = null,
IProtoItemWeapon byWeaponProto = null,
IProtoExplosive byExplosiveProto = null)
{
this.ByWeaponProto = byWeaponProto;
this.ByExplosiveProto = byExplosiveProto;
this.character = character;
this.staticWorldObject = staticWorldObject;
}
public static void ServerExplode(
[CanBeNull] ICharacter character,
[CanBeNull] IProtoExplosive protoExplosive,
[CanBeNull] IProtoItemWeapon protoWeapon,
ExplosionPreset explosionPreset,
Vector2D epicenterPosition,
DamageDescription damageDescriptionCharacters,
IPhysicsSpace physicsSpace,
ExecuteExplosionDelegate executeExplosionCallback)
{
ValidateIsServer();
// schedule explosion charred ground spawning
var protoObjectCharredGround = explosionPreset.ProtoObjectCharredGround;
if (protoObjectCharredGround is not null)
{
ServerTimersSystem.AddAction(
delaySeconds: explosionPreset.SpriteAnimationDuration * 0.5,
() =>
{
var tilePosition = (Vector2Ushort)(epicenterPosition - protoObjectCharredGround.Layout.Center);
var canSpawnCharredGround = true;
var tile = Server.World.GetTile(tilePosition);
if (tile.ProtoTile.Kind != TileKind.Solid ||
tile.EightNeighborTiles.Any(t => t.ProtoTile.Kind != TileKind.Solid))
{
// allow charred ground only on solid ground
canSpawnCharredGround = false;
}
if (canSpawnCharredGround)
{
// remove existing charred ground objects at the same tile
foreach (var staticWorldObject in Shared.WrapInTempList(
tile.StaticObjects)
.EnumerateAndDispose())
{
switch (staticWorldObject.ProtoStaticWorldObject)
{
case ProtoObjectCharredGround _:
Server.World.DestroyObject(staticWorldObject);
break;
case IProtoObjectDeposit _:
// don't show charred ground over resource deposits (it looks wrong)
canSpawnCharredGround = false;
break;
}
}
}
if (canSpawnCharredGround &&
PveSystem.ServerIsPvE)
{
var bounds = protoObjectCharredGround.Layout.Bounds;
if (LandClaimSystem.SharedIsLandClaimedByAnyone(
new RectangleInt(tilePosition, bounds.Size + (1, 1))))
{
// ensure that it's not possible to create charred ground in a land claim area in PvE
canSpawnCharredGround = false;
}
}
if (canSpawnCharredGround)
{
// spawn charred ground
var objectCharredGround =
Server.World.CreateStaticWorldObject(protoObjectCharredGround,
tilePosition);
var objectCharredGroundOffset = epicenterPosition - tilePosition.ToVector2D();
if (objectCharredGroundOffset != Vector2D.Zero)
{
ProtoObjectCharredGround.ServerSetWorldOffset(objectCharredGround,
(Vector2F)objectCharredGroundOffset);
}
}
});
}
// schedule explosion damage
ServerTimersSystem.AddAction(
delaySeconds: explosionPreset.ServerDamageApplyDelay,
() =>
{
// prepare weapon caches
var characterFinalStatsCache = character?.SharedGetFinalStatsCache()
?? FinalStatsCache.Empty;
var weaponFinalCache = new WeaponFinalCache(character,
characterFinalStatsCache,
weapon: null,
protoWeapon: protoWeapon,
protoAmmo: null,
damageDescription: damageDescriptionCharacters,
protoExplosive: protoExplosive);
// execute explosion
executeExplosionCallback(
positionEpicenter: epicenterPosition,
physicsSpace: physicsSpace,
weaponFinalCache: weaponFinalCache);
});
}
public WeaponFinalCache(
ICharacter character,
FinalStatsCache characterFinalStatsCache,
[CanBeNull] IItem weapon,
[CanBeNull] IProtoItemWeapon protoWeapon,
[CanBeNull] IProtoItemAmmo protoAmmo,
DamageDescription damageDescription,
IProtoExplosive protoExplosive = null,
IDynamicWorldObject objectDrone = null)
{
this.Character = character;
this.CharacterFinalStatsCache = characterFinalStatsCache;
this.Drone = objectDrone;
this.Weapon = weapon;
this.ProtoWeapon = (IProtoItemWeapon)weapon?.ProtoItem ?? protoWeapon;
this.ProtoAmmo = protoAmmo;
this.ProtoExplosive = protoExplosive;
if (damageDescription is null)
{
// TODO: it looks like not implemented yet and we should throw an exception here
// fallback in case weapon don't provide damage description (such as no-ammo weapon)
damageDescription = new DamageDescription(
damageValue: 0,
armorPiercingCoef: 0,
finalDamageMultiplier: 1,
rangeMax: 0,
damageDistribution: new DamageDistribution());
}
var descriptionDamages = damageDescription.DamageProportions;
var damageDistributionsCount = descriptionDamages.Count;
var resultDamageDistributions = new List <DamageProportion>(damageDistributionsCount);
var totalPercents = 0d;
for (var index = 0; index < damageDistributionsCount; index++)
{
var source = descriptionDamages[index];
var statName = GetProportionStatName(source.DamageType);
var resultDamageProportion = source.Proportion + characterFinalStatsCache[statName];
if (resultDamageProportion <= 0)
{
continue;
}
resultDamageDistributions.Add(new DamageProportion(source.DamageType, resultDamageProportion));
totalPercents += resultDamageProportion;
}
if (damageDistributionsCount > 0 &&
Math.Abs(totalPercents - 1) > 0.001d)
{
throw new Exception(
"Sum of all damage proportions must be exactly 1. Calculated value: "
+ totalPercents.ToString("F3"));
}
this.DamageDistributions = resultDamageDistributions;
this.DamageValue = damageDescription.DamageValue * (protoWeapon?.DamageMultiplier ?? 1.0)
+ characterFinalStatsCache[StatName.DamageAdd];
var weaponSkillProto = protoWeapon?.WeaponSkillProto;
if (weaponSkillProto is not null)
{
var statName = protoWeapon.WeaponSkillProto.StatNameDamageBonusMultiplier;
this.DamageValue *= characterFinalStatsCache.GetMultiplier(statName);
}
this.RangeMax = damageDescription.RangeMax * (protoWeapon?.RangeMultiplier ?? 1.0)
+ characterFinalStatsCache[StatName.AttackRangeMax];
var armorPiercingCoef = (1 + characterFinalStatsCache[StatName.AttackArmorPiercingMultiplier])
* (damageDescription.ArmorPiercingCoef
+ characterFinalStatsCache[StatName.AttackArmorPiercingValue]);
this.InvertedArmorPiercingCoef = 1 - armorPiercingCoef;
this.FinalDamageMultiplier = damageDescription.FinalDamageMultiplier
+ characterFinalStatsCache[StatName.AttackFinalDamageMultiplier];
var probability = protoWeapon?.SpecialEffectProbability ?? 0;
if (weaponSkillProto is not null)
{
var statNameSpecialEffectChance = weaponSkillProto.StatNameSpecialEffectChanceMultiplier;
probability *= characterFinalStatsCache.GetMultiplier(statNameSpecialEffectChance);
}
this.SpecialEffectProbability = probability;
this.FireScatterPreset = protoAmmo?.OverrideFireScatterPreset
?? protoWeapon?.FireScatterPreset
?? default;
var shotsPerFire = this.FireScatterPreset.ProjectileAngleOffets.Length;
if (shotsPerFire > 1)
{
// decrease final damage and special effect multiplier on the number of shots per fire
var coef = 1.0 / shotsPerFire;
this.FinalDamageMultiplier *= coef;
this.SpecialEffectProbability *= coef;
}
}