public void ShouldTranslateCoordinatesToRelativeRealPlane()
{
var coords = new[]
{
new AxialCoordinate(0, 0),
new AxialCoordinate(1, 0),
new AxialCoordinate(0, 1),
new AxialCoordinate(1, 1),
};
var expectedCoords = new[]
{
new Vector2(0, 0),
new Vector2(1.5f, -Mathf.Sqrt(3) / 2),
new Vector2(0, -Mathf.Sqrt(3)),
new Vector2(1.5f, -Mathf.Sqrt(3) * 1.5f),
}.Select(x => x * 2f);
var coordSystem = new HexCoordinateSystem(2);
var actualCoords = coords.Select(x => coordSystem.TileMapToReal(x));
foreach (var pair in expectedCoords.Zip(actualCoords, (a, b) => new { expected = a, actual = b }))
{
Assert.AreEqual(pair.expected, pair.actual);
}
}
public void ShouldEvaluateDistanceBetweenPointsInJumps()
{
var coords = new[]
{
new AxialCoordinate(0, 0),
new AxialCoordinate(1, 0),
new AxialCoordinate(0, 1),
new AxialCoordinate(1, 1),
new AxialCoordinate(3, 2),
new AxialCoordinate(2, 3),
new AxialCoordinate(1, 3),
new AxialCoordinate(5, -1),
};
var expectedJumps = new[]
{
1, 1, 1, 3, 1, 1, 4
};
var coordSystem = new HexCoordinateSystem(2);
var actualJumps = coords
.RollingWindow(2)
.Select(pair => pair[0].DistanceTo(pair[1]));
foreach (var pair in expectedJumps
.Select((x, index) => new { x, index })
.Zip(actualJumps, (a, b) => new { expected = a.x, actual = b, index = a.index }))
{
Assert.AreEqual(
pair.expected,
pair.actual,
$"Expected distance between {coords[pair.index]} and {coords[pair.index + 1]} to be {pair.expected} but was {pair.actual}");
}
}
public void ShouldEvaluateOffsetColumns()
{
var coords = new[]
{
new OffsetCoordinate(0, 0),
new OffsetCoordinate(1, 0),
new OffsetCoordinate(0, 1),
new OffsetCoordinate(4, 1),
new OffsetCoordinate(-1, 1),
new OffsetCoordinate(-3, 1),
new OffsetCoordinate(-10, 1),
};
var expectedOffset = new[]
{
true,
false,
true,
true,
false,
false,
true
};
var coordSystem = new HexCoordinateSystem(1);
#pragma warning disable CS0618 // Type or member is obsolete
var actualOffset = coords.Select(vector => vector.IsInOffsetColumn());
#pragma warning restore CS0618 // Type or member is obsolete
foreach (var pair in expectedOffset.Zip(actualOffset, (a, b) => new { expected = a, actual = b }))
{
Assert.AreEqual(pair.expected, pair.actual);
}
}
protected Vector3 NearestBoxG(Vector3 world, HexCoordinateSystem coordianteSystem)
{
if (coordianteSystem == HexCoordinateSystem.Herring)
{
return(NearestBoxGHerring(world));
}
else
{
return(Vector3.zero);
}
}
protected Vector3 NearestFaceG(Vector3 world, GridPlane thePlane, HexCoordinateSystem coordianteSystem)
{
if (coordianteSystem == HexCoordinateSystem.Herring)
{
return(NearestFaceGHerring(world, thePlane));
}
else
{
return(Vector3.zero);
}
}
protected Vector3 GetBoxCoordinates(Vector3 world, HexCoordinateSystem coordianteSystem)
{
if (coordianteSystem == HexCoordinateSystem.Herring)
{
return(GetBoxCoordinatesHerring(world));
}
else
{
return(Vector3.zero);
}
}
public void ShouldGetAllPositionsWithinDistanceWhenCrossDomain()
{
var offsetToCrossDomain = new AxialCoordinate(-4, -2);
var coord = new AxialCoordinate(3, 2) + offsetToCrossDomain;
//var realOffsetCoord = new AxialCoordinate(coord.x, coord.y);
var expectedCoordsInDistance = new[]
{
new AxialCoordinate(3, 2),
new AxialCoordinate(3, 3),
new AxialCoordinate(2, 3),
new AxialCoordinate(4, 2),
new AxialCoordinate(2, 2),
new AxialCoordinate(4, 1),
new AxialCoordinate(3, 1),
new AxialCoordinate(3, 4),
new AxialCoordinate(2, 4),
new AxialCoordinate(4, 3),
new AxialCoordinate(1, 4),
new AxialCoordinate(5, 2),
new AxialCoordinate(1, 3),
new AxialCoordinate(5, 1),
new AxialCoordinate(1, 2),
new AxialCoordinate(5, 0),
new AxialCoordinate(2, 1),
new AxialCoordinate(4, 0),
new AxialCoordinate(3, 0),
}
.Select(x => x + offsetToCrossDomain)
.OrderBy(x => x.q)
.ThenBy(x => x.r)
.ToList();
var coordSystem = new HexCoordinateSystem(2);
var actualJumps = HexCoordinateSystem.GetPositionsWithinJumpDistance(coord, 2)
.OrderBy(x => x.q)
.ThenBy(x => x.r)
.ToList();
Assert.AreEqual(expectedCoordsInDistance.Count, actualJumps.Count);
foreach (var pair in expectedCoordsInDistance
.Zip(actualJumps, (a, b) => new { expected = a, actual = b }))
{
Assert.AreEqual(
pair.expected,
pair.actual);
}
}
public IEnumerable <ITilemapMember> GetMembersWithinJumpDistanceByChunk(AxialCoordinate origin, int jumpDistance)
{
var chunk = this.GetIndexInChunkMap(origin);
var originOffsetByDistance = origin + new AxialCoordinate(jumpDistance, 0);
var maxChunkOffset = GetIndexInChunkMap(originOffsetByDistance);
// the distance between these two points will always be the maximum distance we need to traverse
// in chunk-space to encompass every point in regular-space that is JumpDistance or more distance away
var chunkDistance = chunk.DistanceTo(maxChunkOffset);
return(HexCoordinateSystem.GetPositionsWithinJumpDistance(chunk.ToAxial(), chunkDistance)
.Where(pos => tileMemberChunkMap.ContainsKey(pos))
.SelectMany(pos => tileMemberChunkMap[pos]));
}
public void Awake()
{
coordinateSystem = new HexCoordinateSystem(hexRadius);
tileMapMax = new OffsetCoordinate(tileMapMin.column + hexWidth, tileMapMin.row + hexHeight);
tileGrid = new IList <ITilemapMember> [hexHeight][];
for (var verticalIndex = 0; verticalIndex < hexHeight; verticalIndex++)
{
tileGrid[verticalIndex] = new IList <ITilemapMember> [hexWidth];
for (var horizontalIndex = 0; horizontalIndex < hexWidth; horizontalIndex++)
{
tileGrid[verticalIndex][horizontalIndex] = new List <ITilemapMember>();
}
}
tileMemberChunkMap = new Dictionary <AxialCoordinate, IList <ITilemapMember> >();
}
public void ShouldGeneratePathBetweenPoints2()
{
var origin = new AxialCoordinate(-2, 2);
var destination = new AxialCoordinate(0, 3);
var expectedPathLength = 3;
var coordSystem = new HexCoordinateSystem(2);
var actualPath = coordSystem.GetRouteGenerator(origin, destination)
.ToList();
Assert.AreEqual(expectedPathLength, actualPath.Count);
foreach (var pair in actualPath.RollingWindow(2))
{
var distanceBetween = pair[0].DistanceTo(pair[1]);
Assert.AreEqual(
1,
distanceBetween,
$"Jump between {pair[0]} and {pair[1]} should have been distance of 1 but was {distanceBetween}");
}
}
public void ShouldGenerateRingAtDistance()
{
var origin = new AxialCoordinate(-2, 2);
var coordSystem = new HexCoordinateSystem(2);
var ring = HexCoordinateSystem.GetRing(origin, 3).ToList();
Assert.AreEqual(6 * 3, ring.Count);
AxialCoordinate?lastPoint = null;
foreach (var coordinate in ring)
{
if (lastPoint.HasValue)
{
var distanceToLast = coordinate.DistanceTo(lastPoint.Value);
Assert.IsTrue(distanceToLast == 1);
}
var distanceToCenter = coordinate.DistanceTo(origin);
Assert.AreEqual(3, distanceToCenter);
}
}
public void ShouldGenerateSpiralAroundPoint()
{
var origin = new AxialCoordinate(-2, 2);
var coordSystem = new HexCoordinateSystem(2);
var generator = coordSystem.GetPositionsSpiralingAround(origin);
var lastDistance = -1;
AxialCoordinate?lastPoint = null;
foreach (var coordinate in generator.Take(100))
{
if (lastPoint.HasValue)
{
var distanceToLast = coordinate.DistanceTo(lastPoint.Value);
Assert.IsTrue(0 < distanceToLast && distanceToLast <= 2);
}
var distanceToCenter = coordinate.DistanceTo(origin);
Assert.IsTrue(distanceToCenter == lastDistance || distanceToCenter == lastDistance + 1, "Distance must increase by only one at a time, and must never decrease");
lastDistance = distanceToCenter;
}
}
public void ShouldTranslateCoordinatesFromRelativeToTiling()
{
var rt3 = Mathf.Sqrt(3);
var realCoords = new[]
{
new Vector2(0, rt3 / 2),
new Vector2(1.5f, 0),
new Vector2(0, rt3 * 1.5f),
new Vector2(1.5f, rt3),
new Vector2(0f, rt3 / 2 + 0.7f),
new Vector2(0f, rt3 / 2 + 1.1f),
new Vector2(0.1f, rt3 / 2 + 0.1f),
new Vector2(0.7f, rt3 / 2),
new Vector2(0.6f, rt3 / 2 + 0.6f),
new Vector2(1f, rt3 / 2 + 0.1f),
new Vector2(0.8f, rt3 / 2 + 0.1f),
new Vector2(0.6f, rt3 / 2 + 0.8f),
new Vector2(1.1f, rt3 / 2 + 1.8f),
new Vector2(2.1f, rt3 / 2 - 0.1f),
new Vector2(0.3f, rt3 / 2 - 0.9f),
}
.Select(x => (x - new Vector2(0, rt3 / 2)))
.ToArray();
var expectedCoords = new[]
{
new OffsetCoordinate(0, 0),
new OffsetCoordinate(1, 0),
new OffsetCoordinate(0, 1),
new OffsetCoordinate(1, 1),
new OffsetCoordinate(0, 0),
new OffsetCoordinate(0, 1),
new OffsetCoordinate(0, 0),
new OffsetCoordinate(0, 0),
new OffsetCoordinate(0, 0),
new OffsetCoordinate(1, 1),
new OffsetCoordinate(0, 0),
new OffsetCoordinate(1, 1),
new OffsetCoordinate(1, 2),
new OffsetCoordinate(2, 0),
new OffsetCoordinate(0, -1),
}
.Select(x => new OffsetCoordinate(x.column, -x.row))
.ToArray();
var coordSystem = new HexCoordinateSystem(1);
var actualCoords = realCoords
.Select(x => coordSystem.RelativeToTileMap(x))
.Select(x => x.ToOffset())
.ToList();
foreach (var pair in expectedCoords
.Select((x, index) => new { x, index })
.Zip(actualCoords, (a, b) => new { expected = a.x, actual = b, index = a.index }))
{
Assert.AreEqual(
pair.expected,
pair.actual,
$"Expected {realCoords[pair.index]} to translate to {pair.expected}, but instead got {pair.actual}");
}
}
