In figure 3 values passed no problem, references will be an error, crooked?

 # include "HelloWorldScene. H" 
# include "SimpleAudioEngine. H" 
# include "UI/CocosGUI. H" 
USING_NS_CC; 

Scene * HelloWorld: : createScene () 
{
Return the HelloWorld: : create (); 
} 

//Print useful error message home segfaulting when files are not there. 
The static void problemLoading (const char * filename) 
{
Printf (" Error while loading: % s \ n ", filename); 
Printf (" Depending on how you compiled as you took have to add 'Resources/' in front of filenames in HelloWorldScene. CPP \ n "); 
} 

//on "init" you need to initialize your instance 
Bool HelloWorld: : init () 
{
//////////////////////////////
//1. Super init first 
if ( ! Scene: : init ()) 
{
return false; 
} 

Auto visibleSize=Director: : getInstance () - & gt; GetVisibleSize (); 
Vec2 origin=Director: : getInstance () - & gt; GetVisibleOrigin (); 
//add "HelloWorld" splash screen "
Sprite=Sprite: : create (" HelloWorld. PNG "); 
If (Sprite==nullptr) 
{
ProblemLoading (" 'the HelloWorld. PNG "); 
} 
The else 
{
//the position the Sprite on the center of the screen 
Sprite - & gt; SetPosition (Vec2 (visibleSize. Width/2 + origin. X, visibleSize. Height/2 + origin. Y)); 
//add the Sprite as a child to this layer 
This - & gt; AddChild (Sprite, 0); 
} 
/////////////////////////////
//2. Add a menu item with "X" image, which is clicked to quit the program 
//you may modify it. 

//add a "close" icon to exit the progress. It 's an autorelease object 
Auto closeItem=MenuItemImage: : create (
"CloseNormal. PNG," 
"CloseSelected. PNG," 
CC_CALLBACK_1 (HelloWorld: : menuCloseCallback, this, Sprite)); 

If (closeItem==nullptr | | 
CloseItem - & gt; GetContentSize (). The width & lt;=0 | | 
CloseItem - & gt; GetContentSize (). The height & lt;=0) 
{
ProblemLoading (" 'CloseNormal. PNG' and 'CloseSelected. PNG "); 
} 
The else 
{
Float x=origin. X + visibleSize. Width - closeItem - & gt; GetContentSize (). The width/2; 
Float y=origin. Y + closeItem - & gt; GetContentSize (). The height/2; 
CloseItem - & gt; SetPosition (Vec2 (x, y)); 
} 

//create the menu, it 's an autorelease object 
Auto menu=menu: : create (closeItem, NULL); 
Menu - & gt; SetPosition (Vec2: : ZERO); 
This - & gt; AddChild (menu, 1); 

/////////////////////////////
//3. Add your codes below... 

//add a label shows "Hello World" 
//create and initialize a label 

Auto label=label: : createWithTTF (" Hello World ", "fonts/Marker Felt. The vera.ttf", 24). 
If (label==nullptr) 
{
ProblemLoading (" 'fonts/Marker Felt. The vera.ttf' "); 
} 
The else 
{
//the position the label on the center of the screen 
The label - & gt; SetPosition (Vec2 (origin. X + visibleSize. Width/2, 
Origin. Y + visibleSize. Height - label - & gt; GetContentSize (), height)); 
This - & gt; AddChild (label, 1); 
} 
Auto pBut1=UI: : Button: : create (" CloseNormal. PNG ", "CloseSelected. PNG"); 
PBut1 - & gt; SetAnchorPoint (Vec2: : ZERO); 
PBut1 - & gt; AddTouchEventListener (CC_CALLBACK_2 (HelloWorld: : ContralMoveTest, this, Sprite)); 
This - & gt; AddChild (pBut1); 

Return true; 
} 
Void the HelloWorld: : ContralMoveTest (Ref * sender, UI: : Widget: : TouchEventType controlEvent, Sprite * pSprite) {
if (! IsScheduled (" HelloWorld: : ContralMoveTest ")) {
This - & gt; The schedule ([=] {float (dt) 
PSprite - & gt; SetPositionX (pSprite - & gt; GetPositionX () + 1.0 f); 
}, 0, 1, 0, "HelloWorld: : ContralMoveTest"); 
} 
//leave end state timer 
If (controlEvent==UI: : Widget: : TouchEventType: : ENDED) {
This - & gt; Unschedule (" HelloWorld: : ContralMoveTest "); 
} 
} 

Void the HelloWorld: : menuCloseCallback (Ref * pSender, Sprite * pSprite) 
{

} 

Void the HelloWorld: : SchedulerTest (float dt, Sprite * pSprite) 
{
PSprite - & gt; SetVisible (! PSprite - & gt; IsVisible ()); 
} 

CodePudding user response:

=is a value type, & amp; Is a reference type