How to Properly Remove Node When Out of Screen Bounds

how to properly remove nodes once outside of scene

So I finally found the solution. For some reason, Xcode doesn't like this code:

arrow.run(
    SKAction.moveBy(x: 0.0 , y: -size.height - arrow.size.height, duration: TimeInterval(random(min: 2, max: 2))))
    self.enumerateChildNodes(withName: "Arrow") { (node:SKNode, nil) in
    if node.position.y < -500 || node.position.y > self.size.height + 550 {
        node.removeFromParent()
    }
}   

I instead used the following code in place of this and the nodes were fixed, although they don't fully go off the screen, there isn't some weird stoppage and pileup at the bottom of the scene.

let moveEnemy = SKAction.moveTo(y: -800, duration: 4.0)
let deleteEnemy= SKAction.removeFromParent()
let enemySequence = SKAction.sequence([moveEnemy, deleteEnemy])
enemy.run(enemySequence)

Sprite Kit Remove SKNode From Parent When Off Screen

https://stackoverflow.com/a/24195006/2494064

Here is a link to an answer that removes nodes that go off the top of the screen. You would just have to replicate this to cover the entire border and set all of the walls to have the same contactBitMask values.

Basically the logic is to remove the SKSpriteNodes when they contact physicsbodies that you have resting just outside the visible screen.

Determine when a SpriteNode is leaving the screen?

You can check the position of each node to determine if it is in the scene. You can then remove the nodes, accordingly.

override func update(currentTime: CFTimeInterval) {
    // Loop over all nodes in the scene
    self.enumerateChildNodesWithName("*") {
        node, stop in
        if (node is SKSpriteNode) {
            let sprite = node as SKSpriteNode
            // Check if the node is not in the scene
            if (sprite.position.x < -sprite.size.width/2.0 || sprite.position.x > self.size.width+sprite.size.width/2.0
                || sprite.position.y < -sprite.size.height/2.0 || sprite.position.y > self.size.height+sprite.size.height/2.0) {
                    sprite.removeFromParent()
            }
        }
    }
}

How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)

Apparently, there was a /Users/myusername/local folder that contained a include with node and lib with node and node_modules. How and why this was created instead of in my /usr/local folder, I do not know.

Deleting these local references fixed the phantom v0.6.1-pre. If anyone has an explanation, I'll choose that as the correct answer.

EDIT:

You may need to do the additional instructions as well:

sudo rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/{npm*,node*,man1/node*}

which is the equivalent of (same as above)...

sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node* /usr/local/lib/dtrace/node.d ~/.npm ~/.node-gyp 

or (same as above) broken down...

To completely uninstall node + npm is to do the following:

1. go to /usr/local/lib and delete any node and node_modules
2. go to /usr/local/include and delete any node and node_modules directory
3. if you installed with brew install node, then run brew uninstall node in your terminal
4. check your Home directory for any local or lib or include folders, and delete any node or node_modules from there
5. go to /usr/local/bin and delete any node executable

You may also need to do:

sudo rm -rf /opt/local/bin/node /opt/local/include/node /opt/local/lib/node_modules
sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node.1 /usr/local/lib/dtrace/node.d

Additionally, NVM modifies the PATH variable in $HOME/.bashrc, which must be reverted manually.

Then download nvm and follow the instructions to install node. The latest versions of node come with npm, I believe, but you can also reinstall that as well.

Detect when node hits bottom of screen

I think the problem is at your if statement. It should be like this

 if (self.metalCrate.position.y == SOMETHING || self.crate.position.y >= 568) {
    NSLog(@"Game Over.");
}

You need to compare self.metalCrate.position.y to something, otherwise, as long as self.metalCrate.position.y is not nil, your if verification will always be true.

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