Change HighPressureMovements to use GridTileLookup (#2025)

* Change spacewinds to use GridTileLookup

* Add tile lookup tests

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Content.IntegrationTests/Tests/GridTileLookupTest.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NUnit.Framework;
+using Robust.Server.GameObjects.EntitySystems.TileLookup;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Interfaces.Map;
+using Robust.Shared.Log;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+
+namespace Content.IntegrationTests.Tests
+{
+    [TestFixture]
+    public class GridTileLookupTest : ContentIntegrationTest
+    {
+        [Test]
+        public async Task Test()
+        {
+            var server = StartServerDummyTicker();
+            await server.WaitIdleAsync();
+
+            var entityManager = server.ResolveDependency<IEntityManager>();
+            var tileLookup = server.ResolveDependency<IEntitySystemManager>().GetEntitySystem<GridTileLookupSystem>();
+            var mapManager = server.ResolveDependency<IMapManager>();
+            var tileDefinitionManager = server.ResolveDependency<ITileDefinitionManager>();
+
+            server.Assert(() =>
+            {
+                List<IEntity> entities;
+                var mapOne = mapManager.CreateMap();
+                var gridOne = mapManager.CreateGrid(mapOne);
+                
+                var tileDefinition = tileDefinitionManager["underplating"];
+                var underplating = new Tile(tileDefinition.TileId);
+                gridOne.SetTile(new MapIndices(0, 0), underplating);
+                gridOne.SetTile(new MapIndices(-1, -1), underplating);
+
+                entities = tileLookup.GetEntitiesIntersecting(gridOne.Index, new MapIndices(0, 0)).ToList();
+                Assert.That(entities.Count, Is.EqualTo(0));
+
+                // Space entity, check that nothing intersects it and that also it doesn't throw.
+                entityManager.SpawnEntity("HumanMob_Content", new MapCoordinates(Vector2.One * 1000, mapOne));
+                entities = tileLookup.GetEntitiesIntersecting(gridOne.Index, new MapIndices(1000, 1000)).ToList();
+                Assert.That(entities.Count, Is.EqualTo(0));
+
+                var entityOne = entityManager.SpawnEntity("HumanMob_Content", new GridCoordinates(Vector2.Zero, gridOne));
+                entityManager.SpawnEntity("HumanMob_Content", new GridCoordinates(Vector2.One, gridOne));
+
+                var entityTiles = tileLookup.GetIndices(entityOne);
+                Assert.That(entityTiles.Count, Is.EqualTo(2));
+
+                entities = tileLookup.GetEntitiesIntersecting(entityOne).ToList();
+                // Includes station entity
+                Assert.That(entities.Count, Is.EqualTo(3));
+                
+                // Both dummies should be in each corner of the 0,0 tile but only one dummy intersects -1,-1
+                entities = tileLookup.GetEntitiesIntersecting(gridOne.Index, new MapIndices(-1, -1)).ToList();
+                Assert.That(entities.Count, Is.EqualTo(1));
+                
+                entities = tileLookup.GetEntitiesIntersecting(gridOne.Index, new MapIndices(0, 0)).ToList();
+                Assert.That(entities.Count, Is.EqualTo(2));
+            });
+
+            await server.WaitIdleAsync();
+        }
+    }
+}