/Users/rquesada/progs/cocos2d-iphone/cocos2d/CCScheduler.h

/*
 * cocos2d for iPhone: http://www.cocos2d-iphone.org
 *
 * Copyright (c) 2008-2010 Ricardo Quesada
 * Copyright (c) 2011 Zynga Inc.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */



#import "Support/uthash.h"
#import "ccTypes.h"

typedef void (*TICK_IMP)(id, SEL, ccTime);

//
// CCTimer
//
@interface CCTimer : NSObject
{
        id target;
        TICK_IMP impMethod;
        
        ccTime elapsed;

@public                                 // optimization
        ccTime interval;
        SEL selector;
}

@property (nonatomic,readwrite,assign) ccTime interval;

+(id) timerWithTarget:(id) t selector:(SEL)s;

+(id) timerWithTarget:(id) t selector:(SEL)s interval:(ccTime)seconds;

 -(id) initWithTarget:(id) t selector:(SEL)s;

-(id) initWithTarget:(id) t selector:(SEL)s interval:(ccTime)seconds;


-(void) update: (ccTime) dt;
@end



//
// CCScheduler
//
struct _listEntry;
struct _hashSelectorEntry;
struct _hashUpdateEntry;

@interface CCScheduler : NSObject
{       
        ccTime                          timeScale_;
        
        //
        // "updates with priority" stuff
        //
        struct _listEntry                       *updatesNeg;    // list of priority < 0
        struct _listEntry                       *updates0;              // list priority == 0
        struct _listEntry                       *updatesPos;    // list priority > 0
        struct _hashUpdateEntry         *hashForUpdates;        // hash used to fetch quickly the list entries for pause,delete,etc.
                
        // Used for "selectors with interval"
        struct _hashSelectorEntry       *hashForSelectors;
        struct _hashSelectorEntry       *currentTarget;
        BOOL                                            currentTargetSalvaged;
        
        // Optimization
        TICK_IMP                        impMethod;
        SEL                                     updateSelector;
    
    BOOL updateHashLocked; // If true unschedule will not remove anything from a hash. Elements will only be marked for deletion.
}

@property (nonatomic,readwrite) ccTime  timeScale;

+(CCScheduler *)sharedScheduler;

+(void)purgeSharedScheduler;

-(void) tick:(ccTime)dt;

-(void) scheduleSelector:(SEL)selector forTarget:(id)target interval:(ccTime)interval paused:(BOOL)paused;

-(void) scheduleUpdateForTarget:(id)target priority:(NSInteger)priority paused:(BOOL)paused;

-(void) unscheduleSelector:(SEL)selector forTarget:(id)target;

-(void) unscheduleUpdateForTarget:(id)target;

-(void) unscheduleAllSelectorsForTarget:(id)target;

-(void) unscheduleAllSelectors;

-(void) pauseTarget:(id)target;

-(void) resumeTarget:(id)target;

-(BOOL) isTargetPaused:(id)target;

@end