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Confusion about coordinates, frames & child nodes in SpriteKit on iOS?


Confusion about coordinates, frames & child nodes in SpriteKit on iOS?

By : user2956648
Date : November 22 2020, 10:56 AM
To fix this issue You are creating the shape node using the sprite's frame, which is in scene coordinates. Because the shape will be a child of the sprite, you should create the node in the sprite's coordinates. For example, if you create the SKShapeNode with spaceship's size
code :
let debugFrame = SKShapeNode(rectOfSize: spaceship.size)


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access child nodes in spritekit

access child nodes in spritekit


By : Priya Gandhi
Date : March 29 2020, 07:55 AM
this will help Hi all i'm new in spriteKit and objective-c and I would like to create a spriteNode in a method and remove it in another method (same .m file) In this method i create the sprite: , Try this:
code :
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];
    CGPoint positionInScene = [touch locationInNode:self];
    SKSpriteNode *touchedNode = (SKSpriteNode *)[self nodeAtPoint:positionInScene];
}
[sprite setName:@"NodeName"];
[self childNodeWithName:@"NodeName"];
iOS spriteKit child nodes position with respect to view coordinates

iOS spriteKit child nodes position with respect to view coordinates


By : tamer alamiri
Date : March 29 2020, 07:55 AM
will be helpful for those in need Get the child node's position with respect to its parent, then use the convertPoint:fromNode: or convertPoint:toNode: method to convert from the parent node's coordinate system to the scene's coordinate system. (Remember, SKScene inherits from SKNode and is the root of the node hierarchy, so you can use it with either of those methods.) If you then need to work in the UIKit view coordinate space, use the scene's convertPointToView: method.
In SpriteKit using Swift how can you set a specific limit for the amount of child nodes?

In SpriteKit using Swift how can you set a specific limit for the amount of child nodes?


By : Alfred
Date : March 29 2020, 07:55 AM
will be helpful for those in need there are a ton of ways to do this, but this is probably the easiest. NOTE: unless you remove balls from the scene at some point, you're going to hit a ten ball limit and get stuck.
code :
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    /* Called when a touch begins */

    for touch: AnyObject in touches {
        let location = touch.locationInNode(self)

        // ball limit
        let limit = 10

        // setup counter
        var i = 0

        // loop through the ball nodes added to the scene
        self.enumerateChildNodesWithName("ball", usingBlock: {
            _, _ in  // we dont need to use these variables right now   
            i += 1  // increment the counter
        })

        // if we haven't hit our limit, add a ball (YOUR CODE HERE)
        if i <= limit {

            let ball = SKSpriteNode(imageNamed:"ball")

            ball.xScale = 0.2
            ball.yScale = 0.2
            ball.position = location

            ball.physicsBody = SKPhysicsBody(circleOfRadius: ball.size.height / 2.0)
            ball.physicsBody!.dynamic = true

            ball.physicsBody!.friction = 0
            ball.physicsBody!.restitution = 0.8

            ball.name = "ball"

            self.addChild(ball)

        }

    }
}
Confusion about the proper way to read child nodes with XmlReader

Confusion about the proper way to read child nodes with XmlReader


By : DRAGON QUEEN
Date : March 29 2020, 07:55 AM
wish of those help Use ReadSubtree to create inner reader to work with current node. Without this, the reader will not stop and continue the search until the end of the document.
code :
reader.ReadToDescendant("Section");
do
{
    Console.WriteLine("Section");
    using (var innerReader = reader.ReadSubtree())
    {
        while (innerReader.ReadToFollowing("Field"))
        {
            Console.WriteLine("field");
        }
    }
} while (reader.ReadToNextSibling("Section"));
Confusion about child nodes of documenElement in XML DOM

Confusion about child nodes of documenElement in XML DOM


By : Tijol
Date : March 29 2020, 07:55 AM
To fix the issue you can do Consider this xml as:- , The "#text" nodes contain the whitespace between the "book" nodes.
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