void Update()
{
// calculate average position of each player and grappling hook reticles
int sources = 0;
Vector3 newAimOffset1 = Vector3.zero;
if (grapple1.GetReticle(1) != null && grapple1.GetReticle(1).activeSelf)
{
newAimOffset1 += (grapple1.GetReticle(1).transform.position - player1.transform.position);
sources++;
}
if (grapple1.GetReticle(2) != null && grapple1.GetReticle(2).activeSelf)
{
newAimOffset1 += (grapple1.GetReticle(2).transform.position - player1.transform.position);
sources++;
}
if (sources > 0)
{
newAimOffset1 /= sources;
}
sources = 0;
Vector3 newAimOffset2 = Vector3.zero;
if (grapple2.GetReticle(1) != null && grapple2.GetReticle(1).activeSelf)
{
newAimOffset2 += (grapple2.GetReticle(1).transform.position - player2.transform.position);
sources++;
}
if (grapple2.GetReticle(2) != null && grapple2.GetReticle(2).activeSelf)
{
newAimOffset2 += (grapple2.GetReticle(2).transform.position - player2.transform.position);
sources++;
}
if (sources > 0)
{
newAimOffset2 /= sources;
}
// lerp screen centers to new screen centers
aimOffset1 = Vector3.Lerp(aimOffset1, newAimOffset1, lerpSpeed);
aimOffset2 = Vector3.Lerp(aimOffset2, newAimOffset2, lerpSpeed);
screenCenter1 = player1.transform.position + (aimOffset1 / 2);
screenCenter2 = player2.transform.position + (aimOffset2 / 2);
// center of each split screen
Vector3 center;
// ratio of screen width to height
float widthHeightRatio = 1f * Screen.width / Screen.height;
// corners of camera
Vector3 topLeft = new Vector3(-widthHeightRatio, 1f, 0f);
Vector3 topRight = new Vector3(widthHeightRatio, 1f, 0f);
Vector3 bottomLeft = new Vector3(-widthHeightRatio, -1f, 0f);
Vector3 bottomRight = new Vector3(widthHeightRatio, -1f, 0f);
// point between players
Vector3 centerPoint = (screenCenter1 + screenCenter2) / 2;
// direction from one player to the other
Vector3 splitOrthogonal = screenCenter1 - centerPoint;
// direction of split
Vector3 split = Vector3.Cross(splitOrthogonal, Vector3.forward).normalized;
// if split is intersecting with left and right of screen
if (Mathf.Abs(split.x) > Mathf.Abs(split.y) * widthHeightRatio)
{
// intersecting points
Vector3 splitIntersection1 = new Vector3(widthHeightRatio, split.y * (widthHeightRatio / split.x), 0f);
Vector3 splitIntersection2 = -splitIntersection1;
// if player1 is on the top
if (splitOrthogonal.y > 0)
{
// location in center of each screen
center = cameraSize * Centroid4(topLeft, topRight, splitIntersection1, splitIntersection2);
}
// if player1 is on the bottom
else
{
// location in center of each screen
center = cameraSize * Centroid4(bottomLeft, bottomRight, splitIntersection1, splitIntersection2);
}
}
// if split is intersecting with top and bottom of screen
else
{
// intersecting points
Vector3 splitIntersection1 = new Vector3(split.x * (1f / split.y), 1f, 0f);
Vector3 splitIntersection2 = -splitIntersection1;
// if player1 is on the right
if (splitOrthogonal.x > 0)
{
// location in center of each screen
center = cameraSize * Centroid4(bottomRight, topRight, splitIntersection1, splitIntersection2);
}
// if player1 is on the left
else
{
// location in center of each screen
center = cameraSize * Centroid4(bottomLeft, topLeft, splitIntersection1, splitIntersection2);
}
}
// feathered location for split screen cameras
float featherAmount = ((screenCenter1 - screenCenter2).magnitude - splitscreenDistanceMultiplier * cameraSize) / (centerCameraDistanceMultiplier * cameraSize - splitscreenDistanceMultiplier * cameraSize);
if (featherAmount < 0)
{
featherAmount = 0;
}
if (featherAmount > 1)
{
featherAmount = 1;
}
Vector3 feather = (1 - featherAmount) * splitscreenDistanceMultiplier * cameraSize / 2 * (screenCenter2 - screenCenter1).normalized - featherAmount * center;
// set positions of all cameras
// main camera should be between two players
transform.position = (screenCenter1 + screenCenter2) / 2 + offset;
// these cameras should smoothly transition according to feather
cam1.transform.position = screenCenter1 + feather + offset;
cam2.transform.position = screenCenter2 - feather + offset;
// set orientation of renderer based on orientation of players, split should be perpendicular to vector between players
vRenderer.transform.up = screenCenter2 - screenCenter1;
divider.transform.up = vRenderer.transform.up;
// scale divider according to distance between players
float scale = dividerScaleMultiplier * (screenCenter1 - screenCenter2).magnitude;
if (scale > maxDividerSize)
{
scale = maxDividerSize;
}
divider.transform.localScale = new Vector3(1f, scale, 1f);
// if the screen should split, show the renderer
if ((screenCenter1 - screenCenter2).magnitude > splitscreenDistanceMultiplier * cameraSize)
{
vRenderer.SetActive(true);
divider.SetActive(true);
}
else
{
vRenderer.SetActive(false);
divider.SetActive(false);
}
}
