I'm looking to restrict my character (cat), to only jump when it's either on the ground (dummy SKNode), or when on the tree (treeP SKNode).
Currently I don't have any restrictions to touchesBegan
and as a result the cat is able to fly through the air if the user clicks in quick succession, whilst this could be useful in other games it's not welcome here.
If anyone could help me I'd be really happy.
What i would like to do but have no experience would be to enable a click (jump), if the cat was in contact with either dummy or tree and likewise disable clicks if not in contact with either dummy or tree.
Here is everything that may be of use....
class GameScene: SKScene, SKPhysicsContactDelegate {
let catCategory: UInt32 = 1 << 0
let treeCategory: UInt32 = 1 << 1
let worldCategory: UInt32 = 1 << 1
override func didMoveToView(view: SKView) {
// part of cat code
cat = SKSpriteNode(texture: catTexture1)
cat.position = CGPoint(x: self.frame.size.width / 2.2, y: self.frame.size.height / 7.0 )
cat.physicsBody?.categoryBitMask = catCategory
cat.physicsBody?.collisionBitMask = crowCategory | worldCategory
cat.physicsBody?.contactTestBitMask = crowCategory | contact2Category
// part of the ground code
var dummy = SKNode()
dummy.position = CGPointMake(0, groundTexture.size().height / 2)
dummy.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.size.width, groundTexture.size().height))
dummy.physicsBody!.dynamic = false
dummy.physicsBody?.categoryBitMask = worldCategory
dummy.physicsBody?.collisionBitMask = 0
dummy.physicsBody?.contactTestBitMask = 0
moving.addChild(dummy)
// part of the tree code
func spawnTrees() {
var treeP = SKNode()
treeP.position = CGPointMake( self.frame.size.width + treeTexture1.size().width * 2, 0 );
treeP.zPosition = -10;
var height = UInt32( self.frame.size.height / 4 )
var y = arc4random() % height;
var tree1 = SKSpriteNode(texture: treeTexture1)
tree1.position = CGPointMake(0.0, CGFloat(y))
tree1.physicsBody = SKPhysicsBody(rectangleOfSize: tree1.size)
tree1.physicsBody?.dynamic = false
tree1.physicsBody?.categoryBitMask = treeCategory;
tree1.physicsBody?.collisionBitMask = 0
tree1.physicsBody?.contactTestBitMask = 0
treeP.addChild(tree1)
treeP.runAction(moveAndRemoveTrees)
trees.addChild(treeP)
}
// all of touchesBegan
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
/* Called when a touch begins */
if (moving.speed > 0){
cat.physicsBody!.velocity = CGVectorMake(0, 0)
cat.physicsBody!.applyImpulse(CGVectorMake(0, 20))
} else if (canRestart) {
self.resetScene()
}
}