Hi,
I've recently started learning go as a way to learn mobile apps and have
started experimenting with flappy from the mobile examples
(https://github.com/golang/mobile/tree/master/example/flappy)
While doing some changes I've run into a problem that I don't understand.
The code :
for i :=0; i <2; i++{
> for j :=0; j<2 ; j++{
> newNode(func(eng sprite.Engine, n *sprite.Node, t clock.Time) {
> fmt.Println(i, j)
produces this error with i and j being 2 :
panic: runtime error: index out of range
>
The example code
https://github.com/golang/mobile/tree/master/example/flappy solves this by
assigning i again inside the loop-block :
starting ligne 96 :
>
> newNode := func(fn arrangerFunc) {
> n := &sprite.Node{Arranger: arrangerFunc(fn)}
> eng.Register(n)
> scene.AppendChild(n)
> }
>
> // The ground.
> for i := range g.groundY {
> i := i
> // The top of the ground.
> newNode(func(eng sprite.Engine, n *sprite.Node, t clock.Time) {
>
While this solves the issue I would like to understand what is happening.
Any insight is appreciated.
Thanks for your help,
Victor
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