Files
OldThink/Content.Shared/Construction/ConstructionConditions/WallmountCondition.cs
Acruid ca4fd649fe Massive Namespace Cleanup (#3120)
* Engine namespace changes.

* Automated remove redundant using statements.

* Simplified Graphics namespace.

* Apparently the container system stores full type names in the map file.😞 This updates those names.

* API Changes to LocalizationManager.LoadCulture.

* Update submodule to v0.3.2
2021-02-11 01:13:03 -08:00

56 lines
2.4 KiB
C#

#nullable enable
using Content.Shared.GameObjects.Components.Tag;
using Content.Shared.Physics;
using JetBrains.Annotations;
using Robust.Shared.IoC;
using Robust.Shared.Map;
using Robust.Shared.Maths;
using Robust.Shared.Serialization;
using System.Linq;
using Robust.Shared.GameObjects;
using Robust.Shared.Physics;
namespace Content.Shared.Construction.ConstructionConditions
{
[UsedImplicitly]
public class WallmountCondition : IConstructionCondition
{
void IExposeData.ExposeData(ObjectSerializer serializer) { }
public bool Condition(IEntity user, EntityCoordinates location, Direction direction)
{
var entManager = IoCManager.Resolve<IEntityManager>();
// get blueprint and user position
var userWorldPosition = user.Transform.WorldPosition;
var objWorldPosition = location.ToMap(entManager).Position;
// find direction from user to blueprint
var userToObject = (objWorldPosition - userWorldPosition);
// dot product will be positive if user direction and blueprint are co-directed
var dotProd = Vector2.Dot(direction.ToVec(), userToObject);
if (dotProd > 0)
return false;
// now we need to check that user actually tries to build wallmount on a wall
var physics = IoCManager.Resolve<IPhysicsManager>();
var rUserToObj = new CollisionRay(userWorldPosition, userToObject.Normalized, (int) CollisionGroup.Impassable);
var length = userToObject.Length;
var userToObjRaycastResults = physics.IntersectRayWithPredicate(user.Transform.MapID, rUserToObj, maxLength: length,
predicate: (e) => !e.HasTag("Wall"));
if (!userToObjRaycastResults.Any())
return false;
// get this wall entity
var targetWall = userToObjRaycastResults.First().HitEntity;
// check that we didn't try to build wallmount that facing another adjacent wall
var rAdjWall = new CollisionRay(objWorldPosition, direction.ToVec(), (int) CollisionGroup.Impassable);
var adjWallRaycastResults = physics.IntersectRayWithPredicate(user.Transform.MapID, rAdjWall, maxLength: 0.5f,
predicate: (e) => e == targetWall || !e.HasTag("Wall"));
return !adjWallRaycastResults.Any();
}
}
}