我在黑暗的屏幕上有一个移动的黑色图像,以便更容易看到我想为图像添加白色光晕。这是我的动态图像代码:
Ghost = SKSpriteNode(imageNamed: "Ghost1")
Ghost.size = CGSize(width: 50, height: 50)
Ghost.position = CGPoint(x: self.frame.width / 2 - Ghost.frame.width, y: self.frame.height / 2)
Ghost.physicsBody = SKPhysicsBody(circleOfRadius: Ghost.frame.height / 1.4)
Ghost.physicsBody?.categoryBitMask = PhysicsCatagory.Ghost
Ghost.physicsBody?.collisionBitMask = PhysicsCatagory.Ground | PhysicsCatagory.Wall
Ghost.physicsBody?.contactTestBitMask = PhysicsCatagory.Ground | PhysicsCatagory.Wall | PhysicsCatagory.Score
Ghost.physicsBody?.affectedByGravity = false
Ghost.physicsBody?.isDynamic = true
Ghost.zPosition = 2
self.addChild(Ghost)
如果您需要更多信息,我不知道如何或者使用什么来添加发光,请询问。
答案 0 :(得分:29)
我创建了此扩展程序,以向SKSpriteNode
添加发光效果只需将其添加到您的项目
即可extension SKSpriteNode {
func addGlow(radius: Float = 30) {
let effectNode = SKEffectNode()
effectNode.shouldRasterize = true
addChild(effectNode)
effectNode.addChild(SKSpriteNode(texture: texture))
effectNode.filter = CIFilter(name: "CIGaussianBlur", withInputParameters: ["inputRadius":radius])
}
}
现在给出一个SKSpriteNode
let sun = SKSpriteNode(imageNamed: "sun")
所有你必须这样做
sun.addGlow()
答案 1 :(得分:3)
只是添加到此,您可以在任何类型的SKNode上执行此操作,方法是首先使用SKView实例上可用的纹理(来自:SKNode)方法呈现其内容。
示例:
extension SKNode
{
func addGlow(radius:CGFloat=30)
{
let view = SKView()
let effectNode = SKEffectNode()
let texture = view.texture(from: self)
effectNode.shouldRasterize = true
effectNode.filter = CIFilter(name: "CIGaussianBlur",withInputParameters: ["inputRadius":radius])
addChild(effectNode)
effectNode.addChild(SKSpriteNode(texture: texture))
}
}