private void OnDrawGizmos()
{
Vector2 from = FromAngle(angle) * distance + (Vector2)transform.position;
Gizmos.DrawWireSphere(from, 0.2f);
try {
var corners = ColliderUtils.FindCorners(from, Collider);
Gizmos.color = Color.cyan;
for (int i = 0; i < corners.Length; i++)
{
Gizmos.DrawLine(from, corners[i]);
}
try {
var normals = ColliderUtils.FindNormals(corners, Collider);
Gizmos.color = Color.white;
for (int i = 0; i < normals.Length; i++)
{
Gizmos.DrawRay(corners[i], normals[i]);
}
} catch { }
} catch { }
}
public void Tick(Vector2 lineEndPosition)
{
RaycastHit2D hit;
// Loops until line of sight to player is restored
do
{
// Breaks if end position is inside a collider
if (Physics2D.OverlapCircle(lineEndPosition, 0.001f, GroundMask) != null)
{
break;
}
Vector2 originPos = currentAnchor.Position;
// Raycasts from last anchor to current player position
hit = Physics2D.Raycast(originPos, (lineEndPosition - originPos).normalized, Vector2.Distance(originPos, lineEndPosition), GroundMask);
// Checks if hitted something and ands anchor in that case
if (hit.transform != null)
{
// Gets previous and current direction
Vector2 previousDirection = previousPosition - originPos;
Vector2 direction = lineEndPosition - originPos;
// Ckecks if hit was clockwise or counter clockwise
float angleBetweenRays = Vector2.SignedAngle(previousDirection, direction);
bool clockwise = angleBetweenRays < 0;
// Gets all corners for given collider and find correct one
var corners = ColliderUtils.FindCorners(originPos, hit.collider);
var cornerIndex = VectorUtils.FindFirstPointInCircularOrder(previousDirection, originPos, corners, clockwise);
var corner = corners[cornerIndex];
Vector2 normal = ColliderUtils.FindNormal(corners[cornerIndex], cornerIndex, hit.collider);
// Ads offset
corner += normal * EdgeOffset;
// Add new anchor to memory
previousAnchors.Push(currentAnchor);
currentAnchor = new Anchor(corner, normal, clockwise);
AnchorAdded?.Invoke(currentAnchor);
}
} while (hit.transform != null);
// Checks if last anchor should be deleted
if (previousAnchors.Count > 0)
{
Anchor previousAnchor = previousAnchors.Peek();
Vector2 lastToCurrentAnchorPos = currentAnchor.Position - previousAnchor.Position;
float angle = Vector2.SignedAngle(lastToCurrentAnchorPos, lineEndPosition - currentAnchor.Position);
if (currentAnchor.Clockwise == angle > 0)
{
// Removes anchor from memory
currentAnchor = previousAnchors.Pop();
AnchorRemoved?.Invoke(currentAnchor);
}
}
if (DrawDebug)
{
// Debug Drawing
var anchorArray = previousAnchors.ToArray();
for (int i = 0; i < previousAnchors.Count - 1; i++)
{
Debug.DrawLine(anchorArray[i].Position, anchorArray[i + 1].Position, Color.red);
}
if (previousAnchors.Count > 0)
{
Debug.DrawLine(previousAnchors.Peek().Position, currentAnchor.Position, Color.green);
}
Debug.DrawLine(currentAnchor.Position, lineEndPosition, Color.cyan);
// -----------
}
// Updates previous position
previousPosition = lineEndPosition;
}