I need to check simply whether an existing spawned SCNNode contains a point - if any of my nodes that I store in an array contain this point, I can't spawn here. Problem is even though I continually spawn in the SAME POSITION (I make sure of this) the following returns false:
func checkIfContainsPoint(ptPos: SCNVector3)->Bool
{
return self.node.boundingBoxContains(point:ptPos))
}
Here's where I got these extensions:
extension SCNNode {
func boundingBoxContains(point: SCNVector3, in node: SCNNode) -> Bool {
let localPoint = self.convertPosition(point, from: node)
return boundingBoxContains(point: localPoint)
}
func boundingBoxContains(point: SCNVector3) -> Bool {
return BoundingBox(self.boundingBox).contains(point)
}
}
struct BoundingBox {
let min: SCNVector3
let max: SCNVector3
init(_ boundTuple: (min: SCNVector3, max: SCNVector3)) {
min = boundTuple.min
max = boundTuple.max
}
func contains(_ point: SCNVector3) -> Bool {
let contains =
min.x <= point.x &&
min.y <= point.y &&
min.z <= point.z &&
max.x > point.x &&
max.y > point.y &&
max.z > point.z
return contains
}
}
Only way I can get it to be true is to test for this:
if (ptPos.x == self.node.position.x && ptPos.y == self.node.position.y && ptPos.z == self.node.position.z
But I need to see if the bounding box contains the point, not if position is equal EXACTLY. What's wrong here?
