// Update is called once per frame
void Update()
{
if (Input.GetMouseButtonDown(0) || (onHold && !Input.GetMouseButtonUp(0)))
{
if (IsPickable())
{
if (!onHold) // first lift, clean the grid at objects location
{
int tmpMask = gameObject.layer;
gameObject.layer = ExtendLayerMask.GhostMask();
grid.UpdateGrid(gameObject);
gameObject.layer = tmpMask;
zOffset = (transform.position - hitInfo.transform.position).y;
onHold = true;
gameObject.isStatic = false;
}
PickupObject(Vector3.up * liftHeight);
}
}
else if (onHold) // Object is no longer under control, put it down
{
if (IsPickable())
{
PickupObject(Vector3.up * zOffset);
onHold = false;
gameObject.isStatic = true;
zOffset = 0;
grid.UpdateGrid(gameObject);
}
}
}
private bool CheckIfNodeIsCollidingWithObject(ref bool isItself, Node n, GameObject gameObject)
{
LayerMask mask = unWalkableMask | 1 << gameObject.layer;
RaycastHit[] hitInfos = Physics.SphereCastAll(n.worldPosition, safeRadius,
Vector3.up, safeRadius, mask);
foreach (RaycastHit hitInfo in hitInfos)
{
if (hitInfo.collider.gameObject == gameObject)
{
isItself = true;
// if there was only a collision with Ghost, it is not a collision
if (gameObject.layer == ExtendLayerMask.GhostMask())
{
return(hitInfos.Length > 1);
}
}
}
return(hitInfos.Length > 0);
}
public void UpdateGrid(GameObject movedObject)
{
//Do not need to update grid if the object is walkable
if ((1 << movedObject.layer & unWalkableMask) == 0 &&
movedObject.layer != ExtendLayerMask.GhostMask()
)
{
return;
}
gridUpdated = true;
Node n = NodeFromWorldPoint(movedObject.transform.position);
int Xmin = n.gridX + 1;
int Xmax = n.gridX;
int Ymin = n.gridY;
int Ymax = n.gridY;
int x, y;
bool isItSelf = false;
bool nNonWalkable;
int left = 0;
int right = 0;
int top = 0;
int bottom = 0;
if (runCase != 0)
{
right = treshhold;
top = treshhold;
bottom = treshhold;
left = treshhold;
}
if ((runCase & 1) > 0)
{
right = 0;
}
if ((runCase & 2) > 0)
{
left = 0;
}
if ((runCase & 4) > 0)
{
top = 0;
}
if ((runCase & 8) > 0)
{
bottom = 0;
}
while (left < treshhold || right < treshhold || top < treshhold || bottom < treshhold)
{
//decrese Y, travers down on left side
if (left < treshhold)
{
if (0 == Xmin)
{
left = treshhold;
x = Xmin;
}
else
{
x = --Xmin;
}
isItSelf = false;
for (y = Ymin; y <= Ymax; y++)
{
nNonWalkable = CheckIfNodeIsCollidingWithObject(ref isItSelf, grid[x, y], movedObject);
grid[x, y].walkable = !nNonWalkable;
}
if (!isItSelf)
{
left++;
}
else
{
left = 0;
}
}
//increase X, travers left on bottom side
if (bottom < treshhold)
{
if (0 == Ymin)
{
top = treshhold;
y = Ymin;
}
else
{
y = --Ymin;
}
isItSelf = false;
for (x = Xmin; x <= Xmax; x++)
{
nNonWalkable = CheckIfNodeIsCollidingWithObject(ref isItSelf, grid[x, y], movedObject);
grid[x, y].walkable = !nNonWalkable;
}
if (!isItSelf)
{
bottom++;
}
else
{
bottom = 0;
}
}
//increase Y, travers up on right side
if (right < treshhold)
{
if (gridSizeX == Xmax)
{
right = treshhold;
}
else
{
x = ++Xmax;
isItSelf = false;
for (y = Ymin; y <= Ymax; y++)
{
nNonWalkable = CheckIfNodeIsCollidingWithObject(ref isItSelf, grid[x, y], movedObject);
grid[x, y].walkable = !nNonWalkable;
}
if (!isItSelf)
{
right++;
}
else
{
right = 0;
}
}
}
//decrese X, travers left on top side
if (top < treshhold)
{
if (gridSizeY == Ymax)
{
top = treshhold;
}
else
{
y = ++Ymax;
isItSelf = false;
for (x = Xmin; x <= Xmax; x++)
{
nNonWalkable = CheckIfNodeIsCollidingWithObject(ref isItSelf, grid[x, y], movedObject);
grid[x, y].walkable = !nNonWalkable;
}
if (!isItSelf)
{
top++;
}
else
{
top = 0;
}
}
}
}
}