所以我在cctouchesEnded遇到了一些问题，当一次触摸结束时触发了我所有按钮的结束动作。我理解为什么会这样，但为了解决这个问题我不知道该怎么做。如果我要为按钮创建一个类并为每个新按钮创建一个类的新实例，那么每个cctoucheEnded会分开吗？如果是这样，有一个很好的例子，说明如何使用类在cocos2d中创建简单的按钮？任何帮助，将不胜感激。这就是我目前使用按钮的方式。
-(void)ccTouchesBegan:(NSSet*)touches withEvent:(UIEvent*)event {
for(UITouch *touch in [event allTouches]) {
CGPoint loc = [touch locationInView: [touch view]];
loc = [[CCDirector sharedDirector] convertToGL:loc];
if (CGRectContainsPoint(button2.boundingBox, loc)) { //Left button pressed
[self.character stopAction:self.walkAction];
[self.character setScaleX:-2];
isLeft = YES;
isRight = NO;
right = NO;
left = YES;
if(!isRunning && !isJumping && !isSpin)
{
// [self.character stopAction:self.jumpAction];
[self.character runAction:self.runAction];
isRunning = YES;
}
else if(isSpin)
{
[self.character stopAction:self.runAction];
[self.character stopAction:self.walkAction];
[self.character stopAction:self.jumpAction];
isRunning = NO;
isStanding = NO;
}
}
if (CGRectContainsPoint(button.boundingBox, loc)) { //Right button pressed
[self.character stopAction:self.walkAction];
[self.character setScaleX:2];
isLeft = NO;
isRight = YES;
right = YES;
left = NO;
if(!isRunning && !isJumping && !isSpin)
{
[self.character stopAction:self.jumpAction];
[self.character runAction:self.runAction];
isRunning = YES;
isStanding = NO;
}
else if(isSpin)
{
[self.character stopAction:self.runAction];
[self.character stopAction:self.walkAction];
[self.character stopAction:self.jumpAction];
isRunning = NO;
isStanding = NO;
}
}
}
}
-(void)ccTouchesMoved:(NSSet *)touchesT withEvent:(UIEvent *)event
{
NSMutableArray *touches = [NSMutableArray arrayWithCapacity:100];
for (UITouch *tmpTouch in [event allTouches]) {
[touches addObject:tmpTouch];
}
CGPoint locOne = [[touches objectAtIndex:0] locationInView: [[touches objectAtIndex:0] view]];
locOne = [[CCDirector sharedDirector] convertToGL:locOne];
CGPoint locTwo = ccp(-100, -100);
if ([touches count] > 1) {
locTwo = [[touches objectAtIndex:1] locationInView: [[touches objectAtIndex:1] view]];
locTwo = [[CCDirector sharedDirector] convertToGL:locTwo];
}
CGPoint locThree = ccp(-100, -100);
if ([touches count] > 2) {
locThree = [[touches objectAtIndex:2] locationInView: [[touches objectAtIndex:2] view]];
locThree = [[CCDirector sharedDirector] convertToGL:locThree];
}
if(!(((CGRectContainsPoint(button2.boundingBox, locOne) || CGRectContainsPoint(button2.boundingBox, locTwo) || CGRectContainsPoint(button2.boundingBox, locThree)))|| ((CGRectContainsPoint(button.boundingBox, locOne) || CGRectContainsPoint(button.boundingBox, locTwo) || CGRectContainsPoint(button.boundingBox, locThree)))))
{
if(!isJumping && !isSpin && !isStanding){
[self.character stopAction:self.jumpAction]; //No buttons
[self.character stopAction:self.runAction];
[self.character runAction:self.walkAction];
isRunning = NO;
isStanding = YES;
}
}
if (!(CGRectContainsPoint(button2.boundingBox, locOne) || CGRectContainsPoint(button2.boundingBox, locTwo) || CGRectContainsPoint(button2.boundingBox, locThree))) {
left = NO;
} else { //Left button
[self.character setScaleX:-2];
left = YES;
isLeft = YES;
isRight = NO;
if(!isRunning && !isJumping && !isSpin && !isShooting)
{
[self.character stopAction:self.jumpAction];
[self.character stopAction:self.walkAction];
[self.character runAction:self.runAction];
isRunning = YES;
isStanding = NO;
}
else if(isSpin)
{
[self.character stopAction:self.runAction];
[self.character stopAction:self.walkAction];
[self.character stopAction:self.jumpAction];
isRunning = NO;
isStanding = NO;
}
}
if (!(CGRectContainsPoint(button.boundingBox, locOne) || CGRectContainsPoint(button.boundingBox, locTwo) || CGRectContainsPoint(button.boundingBox, locThree))) {
right = NO;
} else {
[self.character setScaleX:2]; //Right button
right = YES;
isRight = YES;
isLeft = NO;
if(!isRunning && !isJumping && !isSpin)
{
[self.character stopAction:self.jumpAction];
[self.character stopAction:self.walkAction];
[self.character runAction:self.runAction];
isRunning = YES;
isStanding = NO;
}
else if(isSpin)
{
[self.character stopAction:self.runAction];
[self.character stopAction:self.walkAction];
[self.character stopAction:self.jumpAction];
isRunning = NO;
isStanding = NO;
}
}
}
-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
right = NO;
left = NO; //Touch ended
isRunning = NO;
if(!isJumping){
[self.character stopAction:self.runAction];
[self.character stopAction:self.jumpAction];
if(isStanding && !isSpin){
[self.character stopAction:self.walkAction];
isStanding = NO;
}
if(!isStanding && !isSpin){
[self.character stopAction:self.runAction];
[self.character runAction:self.walkAction];
isStanding = YES;
}
}
}
答案 0 :(得分：1)
我将发布今年早些时候在项目中使用的“双触摸按钮”的示例（cocos2d，objective-c）。您在创建它时将其传递给CCNode（例如CCSprite），当您按下它并释放它时它将执行一系列操作（请参阅.mm文件）。它将执行向上和向下的选择器（我使用它作为一个消防按钮......需要支持按住按钮）。如果您需要，您应该能够修改它以执行单个操作。
<强> DoubleActionButton.h
#import <Foundation/Foundation.h>
#import "cocos2d.h"
// This button executes an action on the NODE, when the button is pressed down and when the
// button is released.
@interface DoubleActionButton : CCNode <CCTargetedTouchDelegate>
+(DoubleActionButton*)buttonWithTarget:(id)target andDownSelector:(SEL)selD andUpSelector:(SEL)selU andNode:(CCNode*)node;
@end
<强> DoubleActionButton.mm
#import "DoubleActionButton.h"
#import "SimpleAudioEngine.h"
#import "CommonSTL.h"
#import "UIConstants.h"
#import "UIUtilities.h"
@interface DoubleActionButton()
{
id _target;
SEL _selUp;
SEL _selDown;
CCAction * _actUp;
CCAction * _actDown;
BOOL _down;
BOOL _animating;
}
@property (nonatomic, assign) id _target;
@property (nonatomic, assign) BOOL _down;
@property (nonatomic, assign) SEL _selUp;
@property (nonatomic, assign) SEL _selDown;
@property (nonatomic, retain) CCAction * _actUp;
@property (nonatomic, retain) CCAction * _actDown;
@property (nonatomic, retain) CCNode * _node;
@property (nonatomic, assign) BOOL _animating;
@end
@implementation DoubleActionButton
@synthesize _target;
@synthesize _actDown;
@synthesize _actUp;
@synthesize _selDown;
@synthesize _selUp;
@synthesize _animating;
@synthesize _down;
@synthesize _node;
#pragma mark Setters
#pragma mark Life Cycle
-(CCAction*)createDownAction
{
// specify the visual actions that should occur when a user interacts with the button
CCFiniteTimeAction* action0 = [CCCallFunc actionWithTarget:self selector:@selector(buttonDownStart)];
CCFiniteTimeAction* action1 = [CCScaleTo actionWithDuration:0.1 scale:1.1f];
CCFiniteTimeAction* action2 = [CCCallFunc actionWithTarget:self selector:@selector(buttonDownEnd)];
CCSequence* seq = [CCSequence actions:action0,action1,action2,nil];
return seq;
}
-(CCAction*)createUpAction
{
// specify the visual actions that should occur when a user interacts with the button
CCFiniteTimeAction* action0 = [CCCallFunc actionWithTarget:self selector:@selector(buttonUpStart)];
CCFiniteTimeAction* action1 = [CCScaleTo actionWithDuration:0.1 scale:1.0f];
CCFiniteTimeAction* action2 = [CCCallFunc actionWithTarget:self selector:@selector(buttonUpEnd)];
CCSequence* seq = [CCSequence actions:action0,action1,action2,nil];
return seq;
}
-(DoubleActionButton*)init
{
self = [super init];
if(self != nil)
{
_animating = NO;
_down = NO;
self._actUp = [self createUpAction];
self._actDown = [self createDownAction];
self._selUp = nil;
self._selDown = nil;
self._node = nil;
}
return self;
}
-(DoubleActionButton*)initButtonWithTarget:(id)target
andDownSelector:(SEL)selD
andUpSelector:(SEL)selU
andNode:(CCNode*)node
{
self = [super init];
if(self != nil)
{
self._actUp = [self createUpAction];
self._actDown = [self createDownAction];
self._target = target;
self._selDown = selD;
self._selUp = selU;
self.anchorPoint = ccp(0.5,0.5);
self._node = node;
[self addChild:node z:100];
}
return self;
}
+(DoubleActionButton*)buttonWithTarget:(id)target
andDownSelector:(SEL)selD
andUpSelector:(SEL)selU
andNode:(CCNode*)node
{
DoubleActionButton* button = [[DoubleActionButton alloc] initButtonWithTarget:target andDownSelector:selD andUpSelector:selU andNode:node];
[button autorelease];
return button;
}
-(void)dealloc
{
self._actDown = nil;
self._actUp = nil;
self._node = nil;
[super dealloc];
}
#pragma mark Cocos2D Life Cycle
-(void)onEnterTransitionDidFinish
{
[super onEnterTransitionDidFinish];
[[[CCDirector sharedDirector] touchDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];
}
-(void)onExitTransitionDidStart
{
[super onExitTransitionDidStart];
[[[CCDirector sharedDirector] touchDispatcher] removeDelegate:self];
}
#pragma mark General Stuff
-(void)buttonDownStart
{
_animating = YES;
_down = YES;
if(_selDown && _target)
{
[_target performSelector:_selDown];
}
[[SimpleAudioEngine sharedEngine] playEffect:[UIConstants FILE_AUDIO_BUTTON_CLICK]];
}
-(void)buttonDownEnd
{
_animating = NO;
}
-(void)buttonUpStart
{
if(_selUp && _target)
{
[_target performSelector:_selUp];
}
_animating = YES;
}
-(void)buttonUpEnd
{
_down = NO;
_animating = NO;
}
#pragma mark Touch events
- (BOOL) touchInButton:(UITouch*)touch
{
CCNode* node = self._node;
if(node)
{
// Is the touch inside node0's AABB?
CGPoint touchPt = [UIUtilities TouchToScreen:touch];
CGPoint local = [node convertToNodeSpace:touchPt];
CGRect rect = CGRectMake(touchPt.x, touchPt.y, node.contentSize.width, node.contentSize.height);
rect.origin = CGPointZero;
if(CGRectContainsPoint( rect, local ) )
{ // Not in the AABB of node0.
return YES;
}
}
return NO;
}
- (BOOL) ccTouchBegan:(UITouch*)touch withEvent:(UIEvent*)event
{
if (!_animating && !_down && [self touchInButton:touch] )
{
if ( _actDown )
{
[self stopAllActions];
[self runAction:_actDown];
}
return YES;
}
return NO;
}
- (void) ccTouchMoved:(UITouch*)touch withEvent:(UIEvent*)event
{
// Finger moved off the button?
if (_down && ![self touchInButton:touch] )
{ // Looks like it.
if ( _actUp )
{
[self stopAllActions];
[self runAction:_actUp];
}
}
}
- (void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
if ( _actUp && _down)
{
[self stopAllActions];
[self runAction:_actUp];
}
}
-(void)ccTouchCancelled:(UITouch *)touch withEvent:(UIEvent *)event
{
if ( _actUp && _down)
{
[self stopAllActions];
[self runAction:_actUp];
}
}
@end
以下是使用它的示例：
// Button 1
DoubleActionButton* dblBtn;
node0 = [CCSprite spriteWithSpriteFrameName:[UIConstants FILE_IMAGE_FIRE_BUTTON_UP]];
[UIUtilities SetSpriteSize:(CCSprite*)node0 toSize:btnMaxSize];
dblBtn = [DoubleActionButton buttonWithTarget:self andDownSelector:@selector(button1Down) andUpSelector:@selector(button1Up) andNode:node0];
dblBtn.position = ccp(leftEdge,botEdge);
[self addChild:dblBtn];
随意使用尽可能多的代码。
这有用吗？