コードにするCGPoint '

Question

'予想引数の型に' int型の型の値を変換できません'：

のvar shotLength：するCGPoint = vecMult（方向それは、この行でエラーを示し

override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) { 

    self.runAction(SKAction.playSoundFileNamed("ball.mp3", waitForCompletion: false)) 

    let touch = touches.first 
    var location:CGPoint = touch!.locationInNode(self) 

    var torpedo: SKSpriteNode = SKSpriteNode(imageNamed: "heartbullet") 
    torpedo.position = player.position 

    torpedo.physicsBody = SKPhysicsBody(circleOfRadius: torpedo.size.width/2) 
    torpedo.physicsBody?.dynamic = true 
    torpedo.physicsBody?.categoryBitMask = photoTorpedoCategory 
    torpedo.physicsBody?.contactTestBitMask = alienCategory 
    torpedo.physicsBody?.collisionBitMask = 0 
    torpedo.physicsBody?.usesPreciseCollisionDetection = true 

    var offset:CGPoint = vecSub(location, b: torpedo.position) 
    if (offset.y < 0){ 
     return 
    } 

    self.addChild(torpedo) 

    var direction:CGPoint = vecNormalize(offset) 

    var shotLength:CGPoint = vecMult(direction, b: 1000) 
    var finalDestination:CGPoint = vecAdd(shotLength, b: torpedo.position) 

    let velocity = 568/1 
    let moveDuration:Float = Float(self.size.width)/Float(self.size.width)/Float(velocity) 

    var actionArray:[SKAction] = [SKAction]() 
    actionArray.append(SKAction.moveTo(finalDestination, duration: NSTimeInterval(moveDuration))) 
    actionArray.append(SKAction.removeFromParent()) 

    torpedo.runAction(SKAction.sequence(actionArray)) 
} 


func vecAdd(a:CGPoint, b:CGPoint)->CGPoint{ 
    return CGPointMake(a.x + b.x, a.y + b.y) 
} 

func vecSub(a:CGPoint, b:CGPoint)->CGPoint{ 
    return CGPointMake(a.x - b.x, a.y - b.y) 
} 

func vecMult(a:CGPoint, b:CGPoint)->CGPoint{ 
    return CGPointMake(a.x * b.x, a.y * b.y) 
} 

func vecLenght(a:CGPoint)->CGFloat{ 
    return CGFloat(sqrtf(CFloat(a.x)*CFloat(a.x)+CFloat(a.y)*CFloat(a.y))) 
} 

func vecNormalize(a:CGPoint)->CGPoint{ 
    let length:CGFloat = vecLenght(a) 
    return CGPointMake(a.x/length, a.y/length) 
} 

、B：1000）

『予想引数の型を『int型の型の値を変換できません』するCGPoint』私は検索してきたと私はそれを修正する方法がわからない

。

誰かが私を助けることができますか？

Answer 1

あなたの問題は、あなたが2点を期待し、それにポイントと数を渡しているということです。

func vecMult(a:CGPoint, b:CGFloat) -> CGPoint { 
    return CGPoint(x:a.x * b, y:a.y * b) 
}