private bool CastLine(Line line, Vector2 direction, float distance, Vector2 offset, float padding, ref RaycastHit2D closestHit, DebugData.DebugTag tag)
{
GetLinePoints(line, out var start, out var end);
return(CastLine(start + offset, end + offset, direction, distance, padding, ref closestHit, tag));
}
private bool CastLine(Vector2 start, Vector2 end, Vector2 direction, float distance, float padding, ref RaycastHit2D closestHit, DebugData.DebugTag tag)
{
float closestHitDistance = distance + padding;
bool hasHit = false;
for (int i = 0; i < pointsPerLine; i++)
{
float ratio = i / (float)(pointsPerLine - 1);
Vector2 position = Vector2.Lerp(start, end, ratio);
RaycastHit2D[] hits = Physics2D.RaycastAll(position, direction, closestHitDistance, layerMask);
foreach (var hit in hits)
{
// Ignore things we are moving away from.
if (Vector2.Dot(hit.normal, direction) > Mathf.Epsilon)
{
continue;
}
if (hit.distance < closestHitDistance)
{
closestHitDistance = hit.distance;
closestHit = hit;
closestHit.distance = Mathf.Max(0.0f, closestHit.distance - padding);
hasHit = true;
}
}
data.Insert(tag, new DebugData.RaycastInfo()
{
start = position,
end = position + direction * (hasHit ? closestHit.distance : closestHitDistance),
});
}
return(hasHit);
}
private bool CastLine(Line line, Vector2 direction, float distance, ref RaycastHit2D closestHit, DebugData.DebugTag tag)
{
return(CastLine(line, direction, distance, Vector2.zero, skinwidth, ref closestHit, tag));
}
