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Contents.swift
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Contents.swift
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//: Playground - noun: a place where people can play
import UIKit
class Avatar{
var name: String
var life = 100{
didSet{
if life <= 0 {
isAlive = false
} else {
isAlive = true
}
if life > 100{
life = 100
}
}
}
var isAlive: Bool = true
var description: String{
return "I'm Avatar \(name)."
}
init(name: String){
self.name = name
}
func beAttacked( attack: Int ){
life -= attack
}
}
class User: Avatar{
var score = 0
var level = 0
// 重写属性
override var description: String{
return "I'm User \(name)."
}
// 使用final阻止重载
final func getScore(score: Int){
self.score += score
if self.score > level * 100 {
level += 1
}
}
}
final class Magician: User {
var magic = 100
override var description: String{
return "I'm Magician \(name)."
}
func heal( user: User ){
user.life += 10
}
}
final class Warrior: User{
var weapon: String?
override var description: String{
return "I'm Warrior \(name)."
}
// 重写方法
override func beAttacked(attack: Int) {
life -= attack/2
}
}
class Monster: Avatar{
override var description: String{
return "I'm Monster \(name)."
}
func attack( user: User , amount: Int ){
user.beAttacked(amount)
}
}
final class Zombie: Monster{
var type = "Default"
override var description: String{
return "I'm Zombie \(name)."
}
}
let player1 = Magician(name: "Harry Potter")
let player2 = Warrior(name: "liuyubobobo")
let zombie = Zombie(name: "default zombie1")
let monster = Monster(name: "monster")
print(player1.description)
print(player2.description)
print(zombie.description)
print(monster.description)
let avatarArr: [Avatar] = [ player1 , player2 , zombie , monster ]
for avatar in avatarArr{
print(avatar.description)
}
monster.attack(player1, amount: 20)
player1.life
monster.attack(player2, amount: 20)
player2.life