SpriteKit-創(chuàng)建一個計時器如何創(chuàng)建一個計時器，它每隔兩秒鐘就會在我的屏幕上的HUD上增加一個分數(shù)？這是我對HUD的代碼： @implementation MyScene{
int counter;
BOOL updateLabel;
SKLabelNode *counterLabel;}-(id)initWithSize:(CGSize)size{
if (self = [super initWithSize:size])
{
counter = 0;
updateLabel = false;
counterLabel = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];
counterLabel.name = @"myCounterLabel";
counterLabel.text = @"0";
counterLabel.fontSize = 20;
counterLabel.fontColor = [SKColor yellowColor];
counterLabel.horizontalAlignmentMode = SKLabelHorizontalAlignmentModeCenter;
counterLabel.verticalAlignmentMode = SKLabelVerticalAlignmentModeBottom;
counterLabel.position = CGPointMake(50,50); // change x,y to location you want
counterLabel.zPosition = 900;
[self addChild: counterLabel];
}}
3 回答
蕭十郎
TA貢獻1815條經(jīng)驗 獲得超13個贊
var timescore = Int() var actionwait = SKAction.waitForDuration(0.5)
var timesecond = Int()
var actionrun = SKAction.runBlock({
timescore++
timesecond++
if timesecond == 60 {timesecond = 0}
scoreLabel.text = "Score Time: \(timescore/60):\(timesecond)"
})
scoreLabel.runAction(SKAction.repeatActionForever(SKAction.sequence([actionwait,actionrun])))
森林海
TA貢獻2011條經(jīng)驗 獲得超2個贊
func updateClock() {
var leadingZero = ""
var leadingZeroMin = ""
var timeMin = Int()
var actionwait = SKAction.waitForDuration(1.0)
var timesecond = Int()
var actionrun = SKAction.runBlock({
timeMin++
timesecond++
if timesecond == 60 {timesecond = 0}
if timeMin / 60 <= 9 { leadingZeroMin = "0" } else { leadingZeroMin = "" }
if timesecond <= 9 { leadingZero = "0" } else { leadingZero = "" }
self.flyTimeText.text = "Flight Time [ \(leadingZeroMin)\(timeMin/60) : \(leadingZero)\(timesecond) ]"
})
self.flyTimeText.runAction(SKAction.repeatActionForever(SKAction.sequence([actionwait,actionrun])))}- 3 回答
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