/// <summary>
/// Finds a random block facing the sky. Raycast is slightly randomized to simulate wind blowing rain
/// </summary>
/// <param name="grid"></param>
/// <param name="blocks"></param>
/// <param name="gravityDirection"></param>
/// <param name="physicsCast"></param>
/// <returns></returns>
public static IMySlimBlock GetRandomSkyFacingBlock(IMyCubeGrid grid, List <IMySlimBlock> blocks, Vector3D gravityDirection, out LineD line, bool physicsCast = false)
{
Vector3D posInt = grid.GridIntegerToWorld(blocks.GetRandomItemFromList().Position) + -gravityDirection * 2;
Vector3D posExt = posInt + gravityDirection * Math.Max(25, grid.WorldVolume.Radius * 2);
posExt = RandomPositionFromPoint(ref posExt, grid.WorldVolume.Radius);
line = new LineD();
Vector3I?blockPos = grid.RayCastBlocks(posExt, posInt);
if (!blockPos.HasValue)
{
return(null);
}
IMySlimBlock block = grid.GetCubeBlock(blockPos.Value);
if (block == null)
{
return(null);
}
if (physicsCast)
{
var hits = new List <IHitInfo>();
MyAPIGateway.Physics.CastRay(posExt, grid.GridIntegerToWorld(blockPos.Value), hits);
foreach (IHitInfo hit in hits)
{
if (hit?.HitEntity?.GetTopMostParent() == null)
{
continue;
}
if (hit.HitEntity.GetTopMostParent().EntityId != grid.EntityId)
{
return(null);
}
}
}
if (Debug)
{
Lines.Add(new LineD {
From = posExt, To = grid.GridIntegerToWorld(blockPos.Value)
});
}
line = new LineD {
From = posExt, To = grid.GridIntegerToWorld(blockPos.Value)
};
return(block);
}
/// <summary>
/// Gets a block on the exterior hull of a ship
/// </summary>
/// <param name="grid"></param>
/// <param name="blocks"></param>
/// <returns></returns>
public static IMySlimBlock GetRandomExteriorBlock(IMyCubeGrid grid, List <IMySlimBlock> blocks)
{
Vector3D posInt = grid.GridIntegerToWorld(blocks.GetRandomItemFromList().Position);
Vector3D posExt = RandomPositionFromPoint(ref posInt, grid.WorldAABB.HalfExtents.Length());
if (Debug)
{
Lines.Add(new LineD {
From = posExt, To = posInt
});
}
Vector3I?blockPos = grid.RayCastBlocks(posExt, posInt);
return(blockPos.HasValue ? grid.GetCubeBlock(blockPos.Value) : null);
}
public static double?GridHitCheck(IMyCubeGrid cubeGrid, LineD lineCheck, Vector3D lineStartPoint, Vector3D lineEndPoint)
{
// Hit a grid, do a raycast to it for block hit.
Vector3I?gridBlockHit = cubeGrid.RayCastBlocks(lineStartPoint, lineEndPoint);
if (gridBlockHit.HasValue)
{
// Get the block on hit grid
IMySlimBlock blk = cubeGrid.GetCubeBlock(gridBlockHit.Value);
if (blk.FatBlock != null)
{
var blockBBox = blk.FatBlock.LocalAABB;
MyOrientedBoundingBoxD blockOBB = new MyOrientedBoundingBoxD(blockBBox, blk.FatBlock.WorldMatrix);
double?blockIntersect = blockOBB.Intersects(ref lineCheck);
if (blockIntersect != null)
{
var hitDist = blockOBB.Intersects(ref lineCheck);
return(hitDist);
}
//DrawOBB(blockOBB, Color.Red, MySimpleObjectRasterizer.Wireframe, 0.01f);
}
else
{
var center = blk.GetPosition();
Vector3 halfExt;
blk.ComputeScaledHalfExtents(out halfExt);
BoundingBoxD blockBBox = new BoundingBoxD(-halfExt, halfExt);
Quaternion rotMatrix = Quaternion.CreateFromRotationMatrix(blk.CubeGrid.WorldMatrix);
MyOrientedBoundingBoxD blockOBB = new MyOrientedBoundingBoxD(center, blockBBox.HalfExtents, rotMatrix);
var hitDist = blockOBB.Intersects(ref lineCheck);
return(hitDist);
//DrawOBB(blockOBB, Color.Green, MySimpleObjectRasterizer.Wireframe, 0.01f);
}
}
return(double.MaxValue);
}
private void Check()
{
Vector3D End = Position + Velocity * Tools.Tick;
IHitInfo hit;
MyAPIGateway.Physics.CastRay(Position, End, out hit);
if (hit != null)
{
Expired = true;
//apply recoil
if (Ammo.ProjectileHitImpulse > 0)
{
Vector3 forceVector = -hit.Normal * Ammo.ProjectileHitImpulse;
hit.HitEntity.Physics.AddForce(MyPhysicsForceType.APPLY_WORLD_IMPULSE_AND_WORLD_ANGULAR_IMPULSE, forceVector, hit.Position, Vector3.Zero);
}
if (!MyAPIGateway.Session.IsServer)
{
return;
}
if (hit.HitEntity is IMyDestroyableObject)
{
(hit.HitEntity as IMyDestroyableObject).DoDamage(Ammo.ProjectileMassDamage, MyStringHash.GetOrCompute(Ammo.SubtypeId), false, null, ShooterId);
}
else if (hit.HitEntity is IMyCubeGrid)
{
IMyCubeGrid grid = hit.HitEntity as IMyCubeGrid;
Vector3I? hitPos = grid.RayCastBlocks(hit.Position, hit.Position + Direction);
if (hitPos.HasValue)
{
IMySlimBlock block = grid.GetCubeBlock(hitPos.Value);
block.DoDamage(Ammo.ProjectileMassDamage, MyStringHash.GetOrCompute(Ammo.SubtypeId), false, null, ShooterId);
}
}
}
}
public static ConcurrentBag <MyGroups <MyCubeGrid, MyGridPhysicalGroupData> .Group> FindLookAtGridGroup(IMyCharacter controlledEntity)
{
const float range = 5000;
Matrix worldMatrix;
Vector3D startPosition;
Vector3D endPosition;
worldMatrix = controlledEntity.GetHeadMatrix(true, true, false); // dead center of player cross hairs, or the direction the player is looking with ALT.
startPosition = worldMatrix.Translation + worldMatrix.Forward * 0.5f;
endPosition = worldMatrix.Translation + worldMatrix.Forward * (range + 0.5f);
var list = new Dictionary <MyGroups <MyCubeGrid, MyGridPhysicalGroupData> .Group, double>();
var ray = new RayD(startPosition, worldMatrix.Forward);
foreach (var group in MyCubeGridGroups.Static.Physical.Groups)
{
foreach (MyGroups <MyCubeGrid, MyGridPhysicalGroupData> .Node groupNodes in group.Nodes)
{
IMyCubeGrid cubeGrid = groupNodes.NodeData;
if (cubeGrid == null)
{
continue;
}
if (cubeGrid.Physics == null)
{
continue;
}
// check if the ray comes anywhere near the Grid before continuing.
if (!ray.Intersects(cubeGrid.WorldAABB).HasValue)
{
continue;
}
Vector3I?hit = cubeGrid.RayCastBlocks(startPosition, endPosition);
if (!hit.HasValue)
{
continue;
}
double distance = (startPosition - cubeGrid.GridIntegerToWorld(hit.Value)).Length();
if (list.TryGetValue(group, out double oldDistance))
{
if (distance < oldDistance)
{
list.Remove(group);
list.Add(group, distance);
}
}
else
{
list.Add(group, distance);
}
}
}
var bag = new ConcurrentBag <MyGroups <MyCubeGrid, MyGridPhysicalGroupData> .Group>();
if (list.Count == 0)
{
return(bag);
}
// find the closest Entity.
var item = list.OrderBy(f => f.Value).First();
bag.Add(item.Key);
return(bag);
}
void GetTarget(IMyCharacter character, out IMyCubeGrid targetGrid, out IMySlimBlock targetBlock, out IMyPlayer targetPlayer, out Vector3D aimPoint)
{
targetGrid = null;
targetBlock = null;
targetPlayer = null;
bool aiming = Utils.IsAimingDownSights(character);
MatrixD head = character.GetHeadMatrix(false, true);
Vector3D rayDir = head.Forward;
Vector3D rayFrom = head.Translation;
if (aiming)
{
rayFrom += rayDir * PAINT_AIM_START_OFFSET;
}
Vector3D rayTo = head.Translation + rayDir * PAINT_DISTANCE;
aimPoint = rayTo;
targetGrid = MyAPIGateway.CubeBuilder.FindClosestGrid();
if (targetGrid == null || targetGrid.Physics == null || !targetGrid.Physics.Enabled)
{
targetGrid = null;
return;
}
// older selection behavior when aiming down sights
if (aiming)
{
Vector3I?blockPos = targetGrid.RayCastBlocks(rayFrom, rayTo);
if (blockPos.HasValue)
{
targetBlock = targetGrid.GetCubeBlock(blockPos.Value);
}
return;
}
// HACK copied and converted from MyDrillSensorRayCast.ReadEntitiesInRange() + MyCasterComponent.OnWorldPosChanged()
// last cloned in SE v201
#region Welder-like block selection
hits.Clear();
detections.Clear();
rayOverlapResults.Clear();
MyAPIGateway.Physics.CastRay(rayFrom, rayTo, hits, 24);
foreach (IHitInfo hit in hits)
{
IMyEntity parent = hit.HitEntity?.GetTopMostParent();
if (parent == null || parent.Physics == null || !parent.Physics.Enabled)
{
continue;
}
Vector3D hitPos = hit.Position;
IMyCubeGrid grid = parent as IMyCubeGrid;
if (grid != null)
{
// just how it's set in game code /shrug
hitPos += hit.Normal * -0.005f;
}
DetectionInfo detected;
if (detections.TryGetValue(parent.EntityId, out detected))
{
double dist1 = Vector3D.DistanceSquared(rayFrom, detected.DetectionPoint);
double dist2 = Vector3D.DistanceSquared(rayFrom, hitPos);
if (dist1 > dist2)
{
detections[parent.EntityId] = new DetectionInfo(parent, hitPos);
}
}
else
{
detections[parent.EntityId] = new DetectionInfo(parent, hitPos);
}
}
hits.Clear();
LineD line = new LineD(rayFrom, rayTo);
MyGamePruningStructure.GetAllEntitiesInRay(ref line, rayOverlapResults);
foreach (MyLineSegmentOverlapResult <MyEntity> result in rayOverlapResults)
{
if (result.Element == null)
{
continue;
}
IMyCubeBlock block = result.Element as IMyCubeBlock;
if (block == null)
{
continue;
}
MyCubeBlockDefinition def = (MyCubeBlockDefinition)block.SlimBlock.BlockDefinition;
if (def.HasPhysics)
{
continue; // this section is only for things that are not caught by the raycast
}
MyEntity parent = result.Element.GetTopMostParent();
if (parent.Physics == null || !parent.Physics.Enabled)
{
continue;
}
MatrixD invMatrix = block.PositionComp.WorldMatrixNormalizedInv;
Vector3 localFrom = Vector3D.Transform(rayFrom, ref invMatrix);
Vector3 localTo = Vector3D.Transform(rayTo, ref invMatrix);
float?intersectDistance = new Ray(localFrom, Vector3.Normalize(localTo - localFrom)).Intersects(block.PositionComp.LocalAABB) + 0.01f;
if (intersectDistance.HasValue && intersectDistance <= PAINT_DISTANCE)
{
Vector3D hitPos = rayFrom + rayDir * intersectDistance.Value;
DetectionInfo detected;
if (detections.TryGetValue(parent.EntityId, out detected))
{
double dist1 = Vector3D.DistanceSquared(rayFrom, detected.DetectionPoint);
double dist2 = Vector3D.DistanceSquared(rayFrom, hitPos);
if (dist1 > dist2)
{
detections[parent.EntityId] = new DetectionInfo(parent, hitPos);
}
}
else
{
detections[parent.EntityId] = new DetectionInfo(parent, hitPos);
}
}
}
rayOverlapResults.Clear();
if (detections.Count == 0)
{
return;
}
double closetDist = double.MaxValue;
DetectionInfo closestObj = new DetectionInfo(null, Vector3D.Zero);
foreach (DetectionInfo detected in detections.Values)
{
double dist = Vector3D.DistanceSquared(detected.DetectionPoint, rayFrom);
if (dist < closetDist)
{
closestObj = detected;
closetDist = dist;
}
}
detections.Clear();
targetGrid = closestObj.Entity as IMyCubeGrid;
if (targetGrid == null)
{
return;
}
Vector3D localPos = Vector3D.Transform(closestObj.DetectionPoint, targetGrid.WorldMatrixNormalizedInv);
Vector3I cube;
targetGrid.FixTargetCube(out cube, localPos / targetGrid.GridSize);
targetBlock = targetGrid.GetCubeBlock(cube);
#endregion Welder-like block selection
}
public void TargetIntersectionCheck()
{
_entityScanList.Clear();
_voxelScanList.Clear();
_entityScanList = new List <MyLineSegmentOverlapResult <MyEntity> >();
MyGamePruningStructure.GetTopmostEntitiesOverlappingRay(ref Line, _entityScanList);
IMyCubeGrid closestGrid = null;
double closestGridDistance = -1;
MySafeZone closestZone = null;
double closestZoneDistance = -1;
IMyCharacter closestCharacter = null;
double closestCharacterDistance = -1;
foreach (var item in _entityScanList)
{
var targetGrid = item.Element as IMyCubeGrid;
var targetZone = item.Element as MySafeZone;
var targetVoxel = item.Element as MyVoxelBase;
var targetPlayer = item.Element as IMyCharacter;
if (targetGrid != null)
{
if (targetGrid == _collisionSystem.RemoteControl.SlimBlock.CubeGrid || _collisionSystem.RemoteControl.SlimBlock.CubeGrid.IsSameConstructAs(targetGrid))
{
continue;
}
if (closestGrid == null || (closestGrid != null && item.Distance < closestGridDistance))
{
closestGrid = targetGrid;
closestGridDistance = item.Distance;
}
}
if (targetZone != null)
{
if (closestZone == null || (closestZone != null && item.Distance < closestZoneDistance))
{
closestZone = targetZone;
closestZoneDistance = item.Distance;
}
}
if (targetVoxel != null)
{
_voxelScanList.Add(targetVoxel);
}
if (targetPlayer != null)
{
if (closestCharacter == null || (closestCharacter != null && item.Distance < closestCharacterDistance))
{
closestCharacter = targetPlayer;
closestCharacterDistance = item.Distance;
}
}
}
if (closestGrid != null)
{
double minDist = 0;
double maxDist = 0;
bool boxCheckResult = closestGrid.PositionComp.WorldAABB.Intersect(ref Ray, out minDist, out maxDist);
Vector3D startBox = boxCheckResult ? (minDist - 5) * DirectionVector + StartPosition : StartPosition;
Vector3D endBox = boxCheckResult ? (maxDist + 5) * DirectionVector + StartPosition : EndPosition;
var blockPos = closestGrid.RayCastBlocks(startBox, endBox);
if (!blockPos.HasValue)
{
return;
}
IMySlimBlock slimBlock = closestGrid.GetCubeBlock(blockPos.Value);
if (slimBlock == null)
{
return;
}
Vector3D blockPosition = Vector3D.Zero;
slimBlock.ComputeWorldCenter(out blockPosition);
GridCoords = blockPosition;
GridDistance = Vector3D.Distance(blockPosition, StartPosition);
GridEntity = closestGrid;
GridOwner = OwnershipHelper.GetOwnershipTypes(closestGrid, false);
GridRelation = OwnershipHelper.GetTargetReputation(_collisionSystem.Owner, closestGrid, false);
}
if (closestZone != null)
{
SafezoneEntity = closestZone;
SafezoneCoords = closestZoneDistance * DirectionVector + StartPosition;
SafezoneDistance = closestZoneDistance;
}
if (closestCharacter != null)
{
PlayerEntity = closestCharacter;
PlayerCoords = PlayerEntity.PositionComp.WorldAABB.Center;
PlayerDistance = closestCharacterDistance;
}
}
public void Check(Projectile p)
{
Vector3D End = p.Position + p.Velocity * Tools.Tick;
IHitInfo hit;
MyAPIGateway.Physics.CastRay(p.Position, End, out hit);
if (hit != null)
{
Tools.Debug($"----- ricochet check start -----");
if (hit.HitEntity is IMyDestroyableObject)
{
p.Expired = true;
(hit.HitEntity as IMyDestroyableObject).DoDamage(p.Ammo.ProjectileMassDamage, MyStringHash.GetOrCompute(p.Ammo.SubtypeId), false, null, p.ShooterId);
}
else if (hit.HitEntity is IMyCubeGrid)
{
Tools.Debug($"hit cube grid");
IMyCubeGrid grid = hit.HitEntity as IMyCubeGrid;
Vector3I?hitPos = grid.RayCastBlocks(hit.Position, hit.Position + Vector3D.Normalize(p.Velocity)); // p.Direction
if (hitPos.HasValue)
{
Tools.Debug($"hit block");
IMySlimBlock block = grid.GetCubeBlock(hitPos.Value);
Vector3 hitObjectVelocity = Vector3.Zero;
if (hit.HitEntity.Physics != null)
{
hitObjectVelocity = hit.HitEntity.Physics.LinearVelocity;
}
Vector3D relativeV = p.Velocity - hitObjectVelocity;
float NotHitAngle = (float)Tools.AngleBetween(-Vector3D.Normalize(relativeV), hit.Normal);
float HitAngle = (90f - NotHitAngle);
float NotHitFraction = NotHitAngle / 90f;
float random = (float)Tools.Random.NextDouble();
if (HitAngle < DeflectionAngle && RicochetChance > random)
{
Tools.Debug($"angle {HitAngle} < {DeflectionAngle}");
// Apply impulse
float impulse = p.Ammo.ProjectileHitImpulse * NotHitFraction * MaxVelocityTransfer;
if (hit.HitEntity.Physics != null)
{
hit.HitEntity.Physics.AddForce(MyPhysicsForceType.APPLY_WORLD_IMPULSE_AND_WORLD_ANGULAR_IMPULSE, p.Velocity * impulse * -hit.Normal, hit.Position, null);
}
// apply partial damage
float damage = p.Ammo.ProjectileMassDamage * NotHitFraction * MaxDamageTransfer;
if (block != null && MyAPIGateway.Session.IsServer)
{
Tools.Debug($"damage {damage}");
block.DoDamage(damage, MyStringHash.GetOrCompute(p.Ammo.SubtypeId), false, null, p.ShooterId);
}
// reduce velocity
p.Velocity -= p.Velocity * NotHitFraction * MaxVelocityTransfer;
// reflect
p.Velocity = Vector3.Reflect(p.Velocity, hit.Normal);
// calculate new direction
p.Direction = Vector3D.Normalize(p.Velocity);
p.Position = hit.Position + (p.Direction * 0.5f);
p.Origin = p.Position;
p.DrawFullTracer = false;
//if (!MyAPIGateway.Utilities.IsDedicated)
//{
// MatrixD world = MatrixD.CreateFromDir(hit.Normal);
// world.Translation = hit.Position;
// MyParticleEffect effect;
// MyParticlesManager.TryCreateParticleEffect("Collision_Sparks_Directional", world, out effect);
// effect.Loop = false;
// effect.UserScale = 0.5f;
// effect.UserEmitterScale = 16f;
// effect.UserRadiusMultiplier = 0.1f;
// effect.UserBirthMultiplier = 20f;
// effect.DurationMin = 0.015f;
// effect.DurationMax = 0.025f;
// effect.SetRandomDuration();
//}
}
else
{
Tools.Debug($"obsorb damage");
if (block != null && MyAPIGateway.Session.IsServer)
{
block.DoDamage(p.Ammo.ProjectileMassDamage, MyStringHash.GetOrCompute(p.Ammo.SubtypeId), true);
}
p.Expired = true;
}
}
}
Tools.Debug($"----- ricochet check end -----");
}
}