public Vector2?intersectswithMe(linearFunction f)
{
Vector2 poi;
if (infiniteSlope)
{
poi.x = b;
poi.y = f.slope * b + f.b;
}
else if (f.infiniteSlope)
{
poi.x = f.b;
poi.y = slope * f.b + b;
}
else if (f.slope == this.slope)
{
return(null); //If No intersection (or too many), give it nothing
}
else
{
poi.x = (f.b - this.b) / (this.slope - f.slope);
poi.y = slope * poi.x + b;
}
Vector2?return_poi = poi;
return(return_poi);
}
// Update is called once per frame
void Update()
{
if (GetComponent <Renderer> ().isVisible)
{
indicator.SetActive(false);
indicator.GetComponent <Renderer>().enabled = false;
}
else
{
cameraPos = Camera.main.transform.position; //Set the camera position
lf_indicator = new linearFunction(cameraPos, transform.position); //Draw the line
//Draw our screen lines
linearFunction left_screen = new linearFunction(0, -1 * cameraSize.x * 0.5f + cameraPos.x, true);
linearFunction right_screen = new linearFunction(0, cameraSize.x * 0.5f + cameraPos.x, true);
linearFunction top_screen = new linearFunction(0, cameraSize.y * 0.5f + cameraPos.y, false);
linearFunction bottom_screen = new linearFunction(0, -1 * cameraSize.y * 0.5f + cameraPos.y, false);
rotateIndicator(AngleBetweenVector2(new Vector2(0, 1), ((Vector2)transform.position - cameraPos)));
//Check our intersection with all lines (if line appears in the renderer & is between our position and cameraCenter, then we found it)
Vector2?poi = lf_indicator.intersectswithMe(left_screen);
Debug.Log(poi.Value);
if (ifIsValidIndicatorLocation(poi))
{
left_screen = new linearFunction(0, -1 * cameraSize.x * 0.5f + cameraPos.x + offset_from_screen * 2, true);
poi = lf_indicator.intersectswithMe(left_screen);
indicator.transform.position = poi.Value;
}
poi = lf_indicator.intersectswithMe(right_screen);
if (ifIsValidIndicatorLocation(poi))
{
right_screen = new linearFunction(0, cameraSize.x * 0.5f + cameraPos.x - offset_from_screen * 2, true);
poi = lf_indicator.intersectswithMe(right_screen);
indicator.transform.position = poi.Value;
}
poi = lf_indicator.intersectswithMe(top_screen);
if (ifIsValidIndicatorLocation(poi))
{
top_screen = new linearFunction(0, cameraSize.y * 0.5f + cameraPos.y - offset_from_screen, false);
poi = lf_indicator.intersectswithMe(top_screen);
indicator.transform.position = poi.Value;
}
poi = lf_indicator.intersectswithMe(bottom_screen);
if (ifIsValidIndicatorLocation(poi))
{
bottom_screen = new linearFunction(0, -1 * cameraSize.y * 0.5f + cameraPos.y + offset_from_screen, false);
poi = lf_indicator.intersectswithMe(bottom_screen);
indicator.transform.position = poi.Value;
}
indicator.SetActive(true);
indicator.GetComponent <Renderer>().enabled = true;
}
}
