private Vector2 GetLineIntersect(Vector2 startPos, Vector2 endPos)
{
// Important: startPos is considered to be outside the NavMesh
Vector2 actualPos = startPos;
Vector2 direction = (endPos - startPos).normalized;
float magnitude = (endPos - startPos).magnitude;
int numInside = 0;
float radius = magnitude * 0.02f;
for (float i = 0f; i < magnitude; i += (radius * 2f))
{
actualPos = startPos + (direction * i);
if (UnityVersionHandler.Perform2DOverlapCircle(actualPos, radius, NavigationEngine_PolygonCollider.results, 1 << KickStarter.sceneSettings.navMesh.gameObject.layer) != 0)
{
numInside++;
}
if (numInside == 2)
{
return(actualPos);
}
}
return(Vector2.zero);
}
private bool IsLineClear(Vector2 startPos, Vector2 endPos)
{
// This will test if points can "see" each other, by doing a circle overlap check along the line between them
Vector2 actualPos = startPos;
Vector2 direction = (endPos - startPos).normalized;
float magnitude = (endPos - startPos).magnitude;
float searchStep = 100f * searchRadius * searchRadius; // squared so that gap between circles increases with radius
for (float i = 0f; i < magnitude; i += searchStep)
{
actualPos = startPos + (direction * i);
if (UnityVersionHandler.Perform2DOverlapCircle(actualPos, searchRadius, NavigationEngine_PolygonCollider.results, 1 << KickStarter.sceneSettings.navMesh.gameObject.layer) != 1)
{
return(false);
}
}
return(true);
}
