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//  main.m
//  day09-03-动物园
//
//  Created by Aaron on 15/7/13.
//  Copyright (c) 2015年 Aaron. All rights reserved.
//
#import <Foundation/Foundation.h>
//练习: 有一个动物收容所,可以收留各种动物,动物收容所会按照动物的身高来排序
//往收容所添加动物,排序,输出排序后的动物信息
#import "AnimalZoon.h"
#import "Dog.h"
#import "Cat.h"
#import "Car.h"
int main(int argc, const char * argv[]) {
    @autoreleasepool {
        AnimalZoon *zoon = [[AnimalZoon alloc] init];
        NSArray *animalType = @[[Dog class],[Cat class],[Car class]];
        for(int i = 0; i < 10; i++)
        {
            NSInteger height = i+10;
            id <AnimalZoonHeight> animal = [[animalType[arc4random_uniform(3)] alloc] init];
            [animal setHeight:height];
            //[zoon addAniaml:animal];
            [zoon addSomeBody:animal];
        }
        [zoon sortByHeight];
        [zoon showInfo];
    }
    return 0;
}

--

#import <Foundation/Foundation.h>
//#import "Animal.h"
@protocol AnimalZoonHeight <NSObject>
-(NSInteger)heightForMe;
-(void)setHeight:(NSInteger)height;
@end
@interface AnimalZoon : NSObject
-(void)addSomeBody:(id <AnimalZoonHeight>)obj;
//-(void)addAniaml:(Animal *)animal;
-(void)sortByHeight;
-(void)showInfo;
@end

#import "AnimalZoon.h"
#import "Animal.h"
@interface AnimalZoon ()
@property (nonatomic,retain) NSMutableArray *animalArray;
@end
@implementation AnimalZoon
-(instancetype)init
{
    if(self = [super init])
    {
        _animalArray = [NSMutableArray array];
    }
    return self;
}
-(void)addAniaml:(Animal *)animal
{
    [_animalArray addObject:animal];
}
-(void)addSomeBody:(id <AnimalZoonHeight>)obj
{
    //对象是否遵循了协议
    if([obj conformsToProtocol:@protocol(AnimalZoonHeight)])
    {
        [_animalArray addObject:obj];
    }
}
#if 0
-(void)sortByHeight
{
    for(int i = 0; i < _animalArray.count-1; i++)
    {
        for(int j = 0; j < _animalArray.count-1-i; j++)
        {
            if([(Animal *)_animalArray[j] heightForAnimal] < [(Animal *)_animalArray[j+1] heightForAnimal])
            {
                [_animalArray exchangeObjectAtIndex:j withObjectAtIndex:j+1];
            }
        }
    }
}
#endif
-(void)sortByHeight
{
    for(int i = 0; i < _animalArray.count-1; i++)
    {
        for(int j = 0; j < _animalArray.count-1-i; j++)
        {
            id <AnimalZoonHeight> obj1 = _animalArray[j];
            id <AnimalZoonHeight> obj2 = _animalArray[j+1];
            if([obj1 respondsToSelector:@selector(heightForMe)] && [obj2 respondsToSelector:@selector(heightForMe)])
            {
                if([obj1 heightForMe] < [obj2 heightForMe])
                {
                    [_animalArray exchangeObjectAtIndex:j withObjectAtIndex:j+1];
                }
            }
        }
    }
}
-(void)showInfo
{
    for(id obj in _animalArray)
    {
        NSLog(@"%@",obj);
    }
}
@end

#import <Foundation/Foundation.h>
#import "AnimalZoon.h"
//父类遵循了协议,子类也遵循
@interface Animal : NSObject <AnimalZoonHeight>
{
    NSInteger _height;
}
@property (nonatomic,copy) NSString *name;
-(void)setHeight:(NSInteger)height;
-(NSInteger)heightForAnimal;
@end

#import "Animal.h"
@implementation Animal
-(void)setHeight:(NSInteger)height
{
    if(_height != height)
    {
        _height = height;
    }
}
-(NSInteger)heightForAnimal
{
    return _height;
}
-(NSInteger)heightForMe
{
    return _height;
}
-(NSString *)description
{
    return [NSString stringWithFormat:@"%@--height=%ld",_name,_height];
}
@end

#import "Animal.h"
@interface Dog : Animal
@end

#import "Dog.h"
@implementation Dog
-(instancetype)init
{
    if(self = [super init])
    {
        self.name = @"狗子";
    }
    return self;
}
@end

#import "Animal.h"
@interface Cat : Animal
@end

--

#import "Cat.h"
@implementation Cat
-(instancetype)init
{
    if(self = [super init])
    {
        self.name = @"猫子";
    }
    return self;
}
@end

#import <Foundation/Foundation.h>
#import "AnimalZoon.h"
@interface Car : NSObject <AnimalZoonHeight>
{
    NSInteger _height;
}
@property (nonatomic,copy) NSString *name;
-(void)setHeight:(NSInteger)height;
@end

#import "Car.h"
@implementation Car
-(instancetype)init
{
    if(self = [super init])
    {
        _name = @"小汽车";
    }
    return self;
}
-(void)setHeight:(NSInteger)height
{
    if(_height != height)
    {
        _height = height;
    }
}
-(NSInteger)heightForMe
{
    return _height;
}
-(NSString *)description
{
    return [NSString stringWithFormat:@"%@--height=%ld",_name,_height];
}
@end