This is my GameScene code.
class GameScene: SKScene, SKPhysicsContactDelegate {
let orcWidth = UIScreen.main.bounds.width / 5
var orcCategory:UInt32 = 0x1 << 0
var knightCategory:UInt32 = 0x1 << 1
private var orc = SKSpriteNode()
private var knight = SKSpriteNode()
private var orcWalkingFrames: [SKTexture] = []
private var knightIdleFrames: [SKTexture] = []
private var knightAttackFrame: [SKTexture] = []
var background = SKSpriteNode(imageNamed: "game_background1")
override func didMove(to view: SKView) {
physicsWorld.contactDelegate = self
physicsWorld.gravity = CGVector(dx: 0, dy: 0)
setupbackground()
startGame()
}
func setupbackground() {
background.zPosition = 0
background.size = self.frame.size
background.position = CGPoint(x: frame.size.width / 2, y: frame.size.height / 2)
addChild(background)
}
func startGame() {
buildRandomOrcs()
buildKnight()
}
func stopGame() {
}
func buildOrc(yposition: CGFloat) {
var orcWalkFrames: [SKTexture] = []
let orcAnimatedAtlas = SKTextureAtlas(named: "OrcWalking")
let numImages = orcAnimatedAtlas.textureNames.count
for i in 0...numImages - 1 {
let orcTextureName = "0_Orc_Walking_\(i)"
orcWalkFrames.append(orcAnimatedAtlas.textureNamed(orcTextureName))
}
self.orcWalkingFrames = orcWalkFrames
let firstFrameTexture = orcWalkingFrames[0]
orc = SKSpriteNode(texture: firstFrameTexture)
orc.name = "orc"
orc.position = CGPoint(x: frame.minX-orcWidth/2, y: yposition)
self.orc.zPosition = CGFloat(self.children.count)
orc.scale(to: CGSize(width: orcWidth, height: orcWidth))
orc.physicsBody = SKPhysicsBody(rectangleOf: orc.size, center: orc.position)
orc.physicsBody?.affectedByGravity = false
orc.physicsBody?.isDynamic = true
orc.physicsBody?.categoryBitMask = orcCategory
orc.physicsBody?.contactTestBitMask = knightCategory
orc.physicsBody?.collisionBitMask = knightCategory
addChild(orc)
walkOrc()
moveOrcForward()
}
func buildKnight() {
var knightIdleFrames: [SKTexture] = []
let knightIdleAtlas = SKTextureAtlas(named: "KnightIdle")
let numImages = knightIdleAtlas.textureNames.count
for i in 0...numImages - 1 {
let orcTextureName = "_IDLE_00\(i)"
knightIdleFrames.append(knightIdleAtlas.textureNamed(orcTextureName))
}
self.knightIdleFrames = knightIdleFrames
let firstFrameTexture = knightIdleFrames[0]
knight = SKSpriteNode(texture: firstFrameTexture)
knight.name = "knight"
knight.position = CGPoint(x: frame.maxX-orcWidth/2, y: frame.midY)
self.knight.zPosition = 1
knight.scale(to: CGSize(width: -orcWidth, height: orcWidth))
knight.physicsBody = SKPhysicsBody(rectangleOf: knight.size, center: knight.position)
knight.physicsBody?.affectedByGravity = false
knight.physicsBody?.isDynamic = false
knight.physicsBody?.categoryBitMask = knightCategory
knight.physicsBody?.contactTestBitMask = orcCategory
knight.physicsBody?.collisionBitMask = orcCategory
addChild(knight)
idleKnight()
}
func idleKnight() {
knight.run(SKAction.repeatForever(SKAction.animate(with: knightIdleFrames, timePerFrame: 0.1)))
}
func walkOrc() {
orc.run(SKAction.repeatForever(SKAction.animate(with: orcWalkingFrames,timePerFrame: 0.025)))
}
func moveOrcForward() {
orc.run(SKAction.repeatForever(SKAction.moveBy(x: 55, y: 0, duration: 0.25)))
}
func buildRandomOrcs () {
let wait = SKAction.wait(forDuration: TimeInterval(makeRandomNumberBetween(min: 0, max: 0)))
let spawn = SKAction.run {
self.buildOrc(yposition: self.makeRandomCGFloatNumber())
}
let spawning = SKAction.sequence([spawn,wait])
self.run(SKAction.repeat(spawning, count: 10))
}
func makeRandomCGFloatNumber() -> CGFloat {
let randomNumber = arc4random_uniform(UInt32((frame.maxY-orcWidth/2) - (frame.minY+orcWidth/2))) + UInt32(frame.minY+orcWidth/2)
return CGFloat(randomNumber)
}
func makeRandomNumberBetween (min: Int, max: Int) -> Int{
let randomNumber = arc4random_uniform(UInt32(max - min)) + UInt32(min)
return Int(randomNumber)
}
func didBegin(_ contact: SKPhysicsContact) {
let collision:UInt32 = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
if collision == orcCategory | knightCategory {
self.scene?.view?.isPaused = true
print("COLLIDED")
}
}
}
The problem is that the scene pauses almost 2-3 seconds after the collision.
I changed the position of knight and delay time changed.
For example, if I set position to frame.minX+orcWidth/2 there is no delay.
What is wrong with my code?
Your problem isn't things are being delayed, your problem is your bounding box is not where you think it is
use view.showPhysics = true to determine where your boxes are
once you realize they are in the wrong spots, go to this line
knight.physicsBody = SKPhysicsBody(rectangleOf: knight.size, center: knight.position)
and fix it
knight.physicsBody = SKPhysicsBody(rectangleOf: knight.size)
Do so for the rest of your bodies