Hello guys,
I am actually new to Swift, I am trying to build a game on iOS.
Unfortunately, I have a problem about my jump section the player doesn't even jump... for a runner game.
When I try to put in comment some sections that may be false, this time the player jumps like superman, even if I tried to put a condition that it can only jump again once touched the ground with the player.
I put you the code down below for you guys to see where could be the problem. I tried nearly everything, I am on it since 2 hours now...
Thank you for your help,
Good evening.
Class GameScene ->
import SpriteKit
class GameplayScene: SKScene, SKPhysicsContactDelegate {
var player = Player();
var canJump = false;
override func didMove(to view: SKView) {
initialize();
}
override func update(_ currentTime: TimeInterval) {
moveBackgroundsAndGrounds();
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if canJump {
/
player.jump();
}
}
func didBeginContact(contact: SKPhysicsContact) {
var firstBody = SKPhysicsBody();
var secondBody = SKPhysicsBody();
if contact.bodyA.node?.name == "Player" {
firstBody = contact.bodyA;
secondBody = contact.bodyB;
} else {
firstBody = contact.bodyB;
secondBody = contact.bodyA;
}
if firstBody.node?.name == "Player" && secondBody.node?.name == "Ground" {
canJump = true;
}
}
func initialize() {
physicsWorld.contactDelegate = self;
createPlayer();
changeBG();
changeGround();
}
func createPlayer() {
player = Player(imageNamed: "Player 1");
player.initialize();
player.position = CGPoint(x: -10, y: 20);
self.addChild(player);
}
func changeBG() {
for i in 0...2 {
let bg = SKSpriteNode(imageNamed: "BG");
bg.name = "BG";
bg.anchorPoint = CGPoint(x: 0.5, y: 0.5);
bg.position = CGPoint(x: CGFloat(i) * bg.size.width, y: 0);
bg.zPosition = 0;
self.addChild(bg);
}
}
func changeGround() {
for i in 0...2 {
let bg = SKSpriteNode(imageNamed: "Ground");
bg.name = "Ground";
bg.anchorPoint = CGPoint(x: 0.5, y: 0.5);
bg.position = CGPoint(x: CGFloat(i) * bg.size.width, y: -(self.frame.size.height / 2));
bg.zPosition = 2;
bg.physicsBody = SKPhysicsBody(rectangleOf: bg.size);
bg.physicsBody?.affectedByGravity = false;
bg.physicsBody?.isDynamic = false;
bg.physicsBody?.categoryBitMask = ColliderType.Ground;
self.addChild(bg);
}
}
func moveBackgroundsAndGrounds() {
enumerateChildNodes(withName: "BG", using: ({
(node, Error) in
let bgNode = node as! SKSpriteNode;
bgNode.position.x -= 4;
if bgNode.position.x < -(self.frame.width) {
bgNode.position.x += self.frame.width * 3;
}
}))
enumerateChildNodes(withName: "Ground", using: ({
(node, Error) in
let bgNode = node as! SKSpriteNode;
bgNode.position.x -= 2;
if bgNode.position.x < -(self.frame.width) {
bgNode.position.x += self.frame.width * 3;
}
}))
}
Class player -> Jump :
import SpriteKit
struct ColliderType {
static let Player: UInt32 = 1;
static let Ground: UInt32 = 2;
static let Obstacle: UInt32 = 3;
}
class Player: SKSpriteNode {
func initialize() {
self.name = "Player";
self.zPosition = 2;
self.anchorPoint = CGPoint(x: 0.5, y: 0.5);
self.setScale(0.5);
self.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: self.size.width - 20, height: self.size.height
));
self.physicsBody?.affectedByGravity = true;
self.physicsBody?.allowsRotation = false;
self.physicsBody?.categoryBitMask = ColliderType.Player;
self.physicsBody?.collisionBitMask = ColliderType.Ground | ColliderType.Obstacle;
self.physicsBody?.contactTestBitMask = ColliderType.Ground | ColliderType.Obstacle;
}
func jump() {
self.physicsBody?.velocity = CGVector(dx: 0, dy: 0);
self.physicsBody?.applyImpulse(CGVector(dx: 0, dy: 200));
}
}
Thank you again,
