Swift-如何在类property中存储结构实例
我是Swift的新手,所以如果这是一个“愚蠢”的问题,我很抱歉。我正在编写一个游戏场脚本,用于生成随机项目,在本例中为武器。当我运行我的代码时,我得到了这个错误:错误:执行被中断,原因:EXC_BAD_指令(code=EXC_I386_INVOP,subcode=0x0)。我试图做的是在我的类normalBladeType的变量weaponHandle中保存一个结构实例(即handle)。我试着研究这个话题,但还没有找到答案。任何建议都很好。就我所知,我可能在这件事上做错了 谢谢 我的代码:Swift-如何在类property中存储结构实例,swift,class,struct,initialization,instance,Swift,Class,Struct,Initialization,Instance,我是Swift的新手,所以如果这是一个“愚蠢”的问题,我很抱歉。我正在编写一个游戏场脚本,用于生成随机项目,在本例中为武器。当我运行我的代码时,我得到了这个错误:错误:执行被中断,原因:EXC_BAD_指令(code=EXC_I386_INVOP,subcode=0x0)。我试图做的是在我的类normalBladeType的变量weaponHandle中保存一个结构实例(即handle)。我试着研究这个话题,但还没有找到答案。任何建议都很好。就我所知,我可能在这件事上做错了 谢谢 我的代码: /
//: Playground - noun: a place where people can play
import Cocoa
let handleWoods = ["White Ash", "Oak", "White Oak", "Elm", "Maple","Walnut", "Cherry", "Rosewood", "Ash", "Hickory", "Birch", "Hemlock", "Cedar", "Pine"]
let handleGrips = ["Leather", "Buckskin", "Sharkskin", "Goat Skin", "Deerskin", "Elk Skin", "Rayskin", "Snakeskin", "Silk Cord", "Cotton Cord"]
let gripQualities = ["Simple", "Interwoven", "Ornate", "Smooth", "Thin", "Thick", "Ruff", "Worn"]
func returnRandomItem( _ list: [Any])-> Any {
return list[Int(UInt32(list.count))]
}
struct handle {
var name: String
var value, grip: Int
var weight: Double
var withGrip: Bool
init(withGrip: Bool) {
self.weight = 0.25
self.withGrip = withGrip
let handleNameWithWood = "\(returnRandomItem(handleWoods)) Handle"
if self.withGrip {
let randGrip = "\(returnRandomItem(gripQualities)) \(returnRandomItem(handleGrips)) Grip)"
self.name = "\(randGrip) (\(handleNameWithWood))"
self.grip = 75
self.value = 2
} else {
self.name = handleNameWithWood
self.grip = 50
self.value = 1
}
}
func description() {
print("Handle Description \(self.name)")
}
}
class weapon {
var TypeOfWeapon: String
var weaponHandle: handle
init(weaponType: String, doesHaveGrip: Bool) {
self.TypeOfWeapon = weaponType
self.weaponHandle = handle(withGrip: doesHaveGrip)
}
}
class normalBladeType: weapon {
init() {
super.init(weaponType: "normalBladeType", doesHaveGrip: false)
}
func description() {
print("TypeOfWeapon: \(self.TypeOfWeapon)")
print("TypeDescription: normal hilt (guard - handle - pommel) + straight blade")
}
}
var foo = normalBladeType()
foo.description()
您的
returnRandomItem
函数错误。你应该把它改成
func returnRandomItem( _ list: [Any])-> Any {
let index: UInt32 = arc4random_uniform(UInt32(list.count))
return list[Int(index)]
}
使用此代码对我来说效果很好。编辑您的问题,将
returnRandomItem
的源代码包含在内。谢谢,我感觉其他地方可能有问题。我在黑暗中拍摄了一个类中的struct(我试着查看文档,等等,花了一天的时间寻找错误的问题)。