private void ClientRemote_OnWeaponHit(IProtoItemWeapon protoWeapon, WeaponHitData hitObject)
{
using (var tempList = Api.Shared.WrapObjectInTempList(hitObject))
{
WeaponSystemClientDisplay.OnWeaponHit(protoWeapon, tempList);
}
}
static Vector2D CalculateWorldObjectPosition(IWorldObject worldObject, WeaponHitData hitData)
{
return(worldObject switch
{
IDynamicWorldObject dynamicWorldObject => dynamicWorldObject.Position,
IStaticWorldObject => worldObject.TilePosition.ToVector2D(),
_ => hitData.FallbackTilePosition.ToVector2D()
});
private void Setup(
WeaponFireTracePreset weaponTracePreset,
IComponentSpriteRenderer componentSpriteRender,
Vector2D worldPositionSource,
Vector2D normalizedRay,
double fireDistance,
double totalDuration,
bool hasHit,
WeaponHitData hitData)
{
this.weaponTracePreset = weaponTracePreset;
this.componentSpriteRender = componentSpriteRender;
this.worldPositionSource = worldPositionSource;
this.normalizedRay = normalizedRay;
this.fireDistance = fireDistance;
this.totalDuration = totalDuration;
this.hasHit = hasHit;
this.hitData = hitData;
this.LateUpdate(0);
}
public static void ClientAddHitSparks(
IReadOnlyWeaponHitSparksPreset hitSparksPreset,
WeaponHitData hitData,
IWorldObject hitWorldObject,
IProtoWorldObject protoWorldObject,
Vector2D worldObjectPosition,
int projectilesCount,
ObjectMaterial objectMaterial,
bool randomizeHitPointOffset,
bool randomRotation,
DrawOrder drawOrder,
double scale = 1.0,
double animationFrameDuration = 2 / 60.0)
{
var sceneObject = Api.Client.Scene.CreateSceneObject("Temp_HitSparks");
sceneObject.Position = worldObjectPosition;
var hitPoint = hitData.HitPoint.ToVector2D();
if (!hitData.IsCliffsHit)
{
// move hitpoint a bit closer to the center of the object
hitPoint = WeaponSystem.SharedOffsetHitWorldPositionCloserToObjectCenter(
hitWorldObject,
protoWorldObject,
hitPoint,
isRangedWeapon: randomizeHitPointOffset);
}
var sparksEntry = hitSparksPreset.GetForMaterial(objectMaterial);
if (projectilesCount == 1 &&
randomizeHitPointOffset &&
sparksEntry.AllowRandomizedHitPointOffset)
{
// randomize hitpoint a bit by adding a little random offset
var maxOffsetDistance = 0.2;
var range = maxOffsetDistance * RandomHelper.NextDouble();
var angleRad = 2 * Math.PI * RandomHelper.NextDouble();
var randomOffset = new Vector2D(range * Math.Cos(angleRad),
range * Math.Sin(angleRad));
hitPoint += randomOffset;
}
var componentSpriteRender = Api.Client.Rendering.CreateSpriteRenderer(
sceneObject,
positionOffset: hitPoint,
spritePivotPoint: (0.5, sparksEntry.PivotY),
drawOrder: drawOrder);
componentSpriteRender.DrawOrderOffsetY = -hitPoint.Y;
componentSpriteRender.Scale = (float)scale * Math.Pow(1.0 / projectilesCount, 0.35);
if (sparksEntry.UseScreenBlending)
{
componentSpriteRender.BlendMode = BlendMode.Screen;
}
if (randomRotation)
{
componentSpriteRender.RotationAngleRad = (float)(RandomHelper.NextDouble() * 2 * Math.PI);
}
var componentAnimator = sceneObject.AddComponent <ClientComponentSpriteSheetAnimator>();
var hitSparksEntry = sparksEntry;
componentAnimator.Setup(
componentSpriteRender,
hitSparksEntry.SpriteSheetAnimationFrames,
frameDurationSeconds: animationFrameDuration,
isLooped: false);
var totalAnimationDuration = animationFrameDuration * componentAnimator.FramesCount;
var totalDurationWithLight = 0.15 + totalAnimationDuration;
if (hitSparksEntry.LightColor.HasValue)
{
// create light spot (even for melee weapons)
var lightSource = ClientLighting.CreateLightSourceSpot(
sceneObject,
color: hitSparksEntry.LightColor.Value,
spritePivotPoint: (0.5, 0.5),
size: 7,
// we don't want to display nickname/healthbar for the firing character, it's too quick anyway
logicalSize: 0,
positionOffset: hitPoint);
ClientComponentOneShotLightAnimation.Setup(lightSource, totalDurationWithLight);
}
componentSpriteRender.Destroy(totalAnimationDuration);
componentAnimator.Destroy(totalAnimationDuration);
sceneObject.Destroy(totalDurationWithLight);
}
public static void ServerProcessExplosionCircle(
Vector2D positionEpicenter,
IPhysicsSpace physicsSpace,
double damageDistanceMax,
WeaponFinalCache weaponFinalCache,
bool damageOnlyDynamicObjects,
bool isDamageThroughObstacles,
Func <double, double> callbackCalculateDamageCoefByDistanceForStaticObjects,
Func <double, double> callbackCalculateDamageCoefByDistanceForDynamicObjects,
[CanBeNull] CollisionGroup[] collisionGroups = null)
{
var playerCharacterSkills = weaponFinalCache.Character?.SharedGetSkills();
var protoWeaponSkill = playerCharacterSkills is not null
? weaponFinalCache.ProtoWeapon?.WeaponSkillProto
: null;
// collect all damaged objects via physics space
var damageCandidates = new HashSet <IWorldObject>();
collisionGroups ??= new[]
{
CollisionGroup.Default,
CollisionGroups.HitboxMelee,
CollisionGroups.HitboxRanged
};
var defaultCollisionGroup = collisionGroups[0];
foreach (var collisionGroup in collisionGroups)
{
CollectDamagedPhysicalObjects(collisionGroup);
}
void CollectDamagedPhysicalObjects(CollisionGroup collisionGroup)
{
using var testResults = physicsSpace.TestCircle(positionEpicenter,
radius: damageDistanceMax,
collisionGroup: collisionGroup);
foreach (var testResult in testResults.AsList())
{
var testResultPhysicsBody = testResult.PhysicsBody;
var damagedObject = testResultPhysicsBody.AssociatedWorldObject;
if (damageOnlyDynamicObjects &&
damagedObject is IStaticWorldObject)
{
continue;
}
if (!(damagedObject?.ProtoWorldObject is IDamageableProtoWorldObject))
{
// non-damageable world object
continue;
}
damageCandidates.Add(damagedObject);
}
}
if (!damageOnlyDynamicObjects)
{
// Collect all the damageable static objects in the explosion radius
// which don't have a collider colliding with the collision group.
var startTilePosition = positionEpicenter.ToVector2Ushort();
var damageDistanceMaxRounded = (int)damageDistanceMax;
var damageDistanceMaxSqr = damageDistanceMax * damageDistanceMax;
var minTileX = startTilePosition.X - damageDistanceMaxRounded;
var minTileY = startTilePosition.Y - damageDistanceMaxRounded;
var maxTileX = startTilePosition.X + damageDistanceMaxRounded;
var maxTileY = startTilePosition.Y + damageDistanceMaxRounded;
for (var x = minTileX; x <= maxTileX; x++)
{
for (var y = minTileY; y <= maxTileY; y++)
{
if (x < 0 ||
x > ushort.MaxValue ||
y < 0 ||
y > ushort.MaxValue)
{
continue;
}
if (new Vector2Ushort((ushort)x, (ushort)y)
.TileSqrDistanceTo(startTilePosition)
> damageDistanceMaxSqr)
{
// too far
continue;
}
var tileObjects = Api.Server.World.GetStaticObjects(new Vector2Ushort((ushort)x, (ushort)y));
if (tileObjects.Count == 0)
{
continue;
}
foreach (var tileObject in tileObjects)
{
if (!(tileObject.ProtoStaticWorldObject is IDamageableProtoWorldObject))
{
// non-damageable
continue;
}
if (tileObject.PhysicsBody.HasAnyShapeCollidingWithGroup(defaultCollisionGroup))
{
// has a collider colliding with the collision group so we ignore this
continue;
}
damageCandidates.Add(tileObject);
}
}
}
}
// order by distance to explosion center
var orderedDamageCandidates = damageCandidates.OrderBy(
ServerExplosionGetDistanceToEpicenter(positionEpicenter, defaultCollisionGroup));
var hitCharacters = new List <WeaponHitData>();
// process all damage candidates
foreach (var damagedObject in orderedDamageCandidates)
{
if (!isDamageThroughObstacles &&
ServerHasObstacleForExplosion(physicsSpace,
positionEpicenter,
damagedObject,
defaultCollisionGroup))
{
continue;
}
var distanceToDamagedObject = ServerCalculateDistanceToDamagedObject(positionEpicenter,
damagedObject);
var damagePreMultiplier =
damagedObject is IDynamicWorldObject
? callbackCalculateDamageCoefByDistanceForDynamicObjects(distanceToDamagedObject)
: callbackCalculateDamageCoefByDistanceForStaticObjects(distanceToDamagedObject);
damagePreMultiplier = MathHelper.Clamp(damagePreMultiplier, 0, 1);
var damageableProto = (IDamageableProtoWorldObject)damagedObject.ProtoGameObject;
damageableProto.SharedOnDamage(
weaponFinalCache,
damagedObject,
damagePreMultiplier,
damagePostMultiplier: 1.0,
out _,
out var damageApplied);
if (damageApplied > 0 &&
damagedObject is ICharacter damagedCharacter)
{
hitCharacters.Add(new WeaponHitData(damagedCharacter,
(0,
damagedCharacter
.ProtoCharacter.CharacterWorldWeaponOffsetRanged)));
}
if (damageApplied > 0)
{
// give experience for damage
protoWeaponSkill?.ServerOnDamageApplied(playerCharacterSkills,
damagedObject,
damageApplied);
}
weaponFinalCache.ProtoExplosive?.ServerOnObjectHitByExplosion(damagedObject,
damageApplied,
weaponFinalCache);
(weaponFinalCache.ProtoWeapon as ProtoItemMobWeaponNova)?
.ServerOnObjectHitByNova(damagedObject,
damageApplied,
weaponFinalCache);
}
if (hitCharacters.Count == 0)
{
return;
}
// display damages on clients in scope of every damaged object
var observers = new HashSet <ICharacter>();
using var tempList = Api.Shared.GetTempList <ICharacter>();
foreach (var hitObject in hitCharacters)
{
if (hitObject.WorldObject is ICharacter damagedCharacter &&
!damagedCharacter.IsNpc)
{
// notify the damaged character
observers.Add(damagedCharacter);
}
Server.World.GetScopedByPlayers(hitObject.WorldObject, tempList);
tempList.Clear();
observers.AddRange(tempList.AsList());
}
// add all observers within the sound radius
var eventNetworkRadius = (byte)Math.Max(
20,
Math.Ceiling(1.5 * damageDistanceMax));
tempList.Clear();
Server.World.GetCharactersInRadius(positionEpicenter.ToVector2Ushort(),
tempList,
radius: eventNetworkRadius,
onlyPlayers: true);
observers.AddRange(tempList.AsList());
if (observers.Count > 0)
{
Instance.CallClient(observers,
_ => _.ClientRemote_OnCharactersHitByExplosion(hitCharacters));
}
}
public static void Create(
WeaponFireTracePreset weaponTracePreset,
Vector2D worldPositionSource,
Vector2D endPosition,
WeaponHitData lastHitData,
bool hasHit)
{
if (weaponTracePreset is null)
{
// no weapon trace for this weapon
return;
}
var deltaPos = endPosition - worldPositionSource;
var fireDistance = CalculateFireDistance(weaponTracePreset, deltaPos);
if (fireDistance <= weaponTracePreset.TraceMinDistance)
{
return;
}
CalculateAngleAndDirection(deltaPos,
out var angleRad,
out var normalizedRay);
// offset start position of the ray
worldPositionSource += normalizedRay * weaponTracePreset.TraceStartWorldOffset;
// actual trace life duration is larger when has a hit
// (to provide a contact fade-out animation for the sprite length)
if (!hasHit)
{
// otherwise it's shorter on the sprite length
fireDistance -= weaponTracePreset.TraceWorldLength;
}
var totalDuration = WeaponSystemClientDisplay.SharedCalculateTimeToHit(fireDistance, weaponTracePreset);
var sceneObject = Api.Client.Scene.CreateSceneObject("Temp_WeaponTrace");
var componentSpriteRender = Api.Client.Rendering.CreateSpriteRenderer(
sceneObject,
weaponTracePreset.TraceTexture,
positionOffset: Vector2D.Zero,
spritePivotPoint: (0, 0.5),
// yes, it's actually making the weapon trace to draw in the light layer!
drawOrder: DrawOrder.Light);
componentSpriteRender.RotationAngleRad = (float)angleRad;
componentSpriteRender.BlendMode = weaponTracePreset.UseScreenBlending
? BlendMode.Screen
// it's important to use premultiplied mode here for correct rendering
: BlendMode.AlphaBlendPremultiplied;
sceneObject.AddComponent <ComponentWeaponTrace>()
.Setup(weaponTracePreset,
componentSpriteRender,
worldPositionSource,
normalizedRay,
fireDistance,
totalDuration,
hasHit,
lastHitData);
sceneObject.Destroy(totalDuration);
}
private static void SharedShotWeaponHitscan(
ICharacter character,
IProtoItemWeapon protoWeapon,
Vector2D fromPosition,
WeaponFinalCache weaponCache,
Vector2D?customTargetPosition,
IProtoCharacterCore characterProtoCharacter,
double fireSpreadAngleOffsetDeg,
CollisionGroup collisionGroup,
bool isMeleeWeapon,
IDynamicWorldObject characterCurrentVehicle,
ProtoSkillWeapons protoWeaponSkill,
PlayerCharacterSkills playerCharacterSkills,
ITempList <IWorldObject> allHitObjects)
{
Vector2D toPosition;
var rangeMax = weaponCache.RangeMax;
if (customTargetPosition.HasValue)
{
var direction = customTargetPosition.Value - fromPosition;
// ensure the max range is not exceeded
direction = direction.ClampMagnitude(rangeMax);
toPosition = fromPosition + direction;
}
else
{
toPosition = fromPosition
+ new Vector2D(rangeMax, 0)
.RotateRad(characterProtoCharacter.SharedGetRotationAngleRad(character)
+ fireSpreadAngleOffsetDeg * Math.PI / 180.0);
}
using var lineTestResults = character.PhysicsBody.PhysicsSpace.TestLine(
fromPosition: fromPosition,
toPosition: toPosition,
collisionGroup: collisionGroup);
var damageMultiplier = 1d;
var hitObjects = new List <WeaponHitData>(isMeleeWeapon ? 1 : lineTestResults.Count);
var characterTileHeight = character.Tile.Height;
if (IsClient ||
Api.IsEditor)
{
SharedEditorPhysicsDebugger.SharedVisualizeTestResults(lineTestResults, collisionGroup);
}
var isDamageRayStopped = false;
foreach (var testResult in lineTestResults.AsList())
{
var testResultPhysicsBody = testResult.PhysicsBody;
var attackedProtoTile = testResultPhysicsBody.AssociatedProtoTile;
if (attackedProtoTile != null)
{
if (attackedProtoTile.Kind != TileKind.Solid)
{
// non-solid obstacle - skip
continue;
}
var attackedTile = IsServer
? Server.World.GetTile((Vector2Ushort)testResultPhysicsBody.Position)
: Client.World.GetTile((Vector2Ushort)testResultPhysicsBody.Position);
if (attackedTile.Height < characterTileHeight)
{
// attacked tile is below - ignore it
continue;
}
// tile on the way - blocking damage ray
isDamageRayStopped = true;
var hitData = new WeaponHitData(testResult.PhysicsBody.Position
+ SharedOffsetHitWorldPositionCloserToTileHitboxCenter(
testResultPhysicsBody,
testResult.Penetration,
isRangedWeapon: !isMeleeWeapon));
hitObjects.Add(hitData);
weaponCache.ProtoWeapon
.SharedOnHit(weaponCache,
null,
0,
hitData,
out _);
break;
}
var damagedObject = testResultPhysicsBody.AssociatedWorldObject;
if (ReferenceEquals(damagedObject, character) ||
ReferenceEquals(damagedObject, characterCurrentVehicle))
{
// ignore collision with self
continue;
}
if (!(damagedObject.ProtoGameObject is IDamageableProtoWorldObject damageableProto))
{
// shoot through this object
continue;
}
// don't allow damage is there is no direct line of sight on physical colliders layer between the two objects
if (SharedHasTileObstacle(character.Position,
characterTileHeight,
damagedObject,
targetPosition: testResult.PhysicsBody.Position
+ testResult.PhysicsBody.CenterOffset))
{
continue;
}
using (CharacterDamageContext.Create(attackerCharacter: character,
damagedObject as ICharacter,
protoWeaponSkill))
{
if (!damageableProto.SharedOnDamage(
weaponCache,
damagedObject,
damageMultiplier,
damagePostMultiplier: 1.0,
out var obstacleBlockDamageCoef,
out var damageApplied))
{
// not hit
continue;
}
var hitData = new WeaponHitData(damagedObject,
testResult.Penetration.ToVector2F());
weaponCache.ProtoWeapon
.SharedOnHit(weaponCache,
damagedObject,
damageApplied,
hitData,
out var isDamageStop);
if (isDamageStop)
{
obstacleBlockDamageCoef = 1;
}
if (IsServer)
{
if (damageApplied > 0 &&
damagedObject is ICharacter damagedCharacter)
{
CharacterUnstuckSystem.ServerTryCancelUnstuckRequest(damagedCharacter);
}
if (damageApplied > 0)
{
// give experience for damage
protoWeaponSkill?.ServerOnDamageApplied(playerCharacterSkills,
damagedObject,
damageApplied);
}
}
if (obstacleBlockDamageCoef < 0 ||
obstacleBlockDamageCoef > 1)
{
Logger.Error(
"Obstacle block damage coefficient should be >= 0 and <= 1 - wrong calculation by "
+ damageableProto);
break;
}
hitObjects.Add(hitData);
if (isMeleeWeapon)
{
// currently melee weapon could attack only one object on the ray
isDamageRayStopped = true;
break;
}
damageMultiplier *= 1.0 - obstacleBlockDamageCoef;
if (damageMultiplier <= 0)
{
// target blocked the damage ray
isDamageRayStopped = true;
break;
}
}
}
var shotEndPosition = GetShotEndPosition(isDamageRayStopped,
hitObjects,
toPosition,
isRangedWeapon: !isMeleeWeapon);
if (hitObjects.Count == 0)
{
protoWeapon.SharedOnMiss(weaponCache,
shotEndPosition);
}
SharedCallOnWeaponHitOrTrace(character,
protoWeapon,
weaponCache.ProtoAmmo,
shotEndPosition,
hitObjects,
endsWithHit: isDamageRayStopped);
foreach (var entry in hitObjects)
{
if (!entry.IsCliffsHit &&
!allHitObjects.Contains(entry.WorldObject))
{
allHitObjects.Add(entry.WorldObject);
}
}
}
