Question

我有一个问题，我想在没有匹配类型的操作中使用变量。因此，我收到以下错误：Cannot convert value of type 'SKSpriteNode' to expected argument type 'CGPoint'。

func enemyProofNextFields() {

    for i in 0...41 {

        if getDistance(knightRed.position, grassTileArray[i].position) > 120 && getDistance(knightRed.position, grassTileArray[i].position) < 121 {

            possibleEnemeyFields.append(grassTileArray[i])
        }
    }

    var lenght = possibleEnemeyFields.count
    let randomNumber = Int.random(in: 0 ... lenght)
    print("Random Enemy Number: \(randomNumber)")
    var position = possibleEnemeyFields[randomNumber]

    let move = SKAction.move(to: position, duration: 0.3) //here is the error
    knightRed.run(SKAction.sequence([move]))

}

对于任何回答，我将非常感谢。

Answer 1

错误非常明显：possibleEnemeyFields显然包含SKSpriteNode个实例，但是move的第一个参数期望一个CGPoint，假定为position

您可能是说

let field = possibleEnemeyFields[randomNumber]
let move = SKAction.move(to: field.position, duration: 0.3)

如何将值转换为CGPoint？

1 个答案: