CODEWITHSUNDEEP
iosswiftsprite-kitprogress-bar
user3452594
user3452594

Reputation:

Swift SpriteKit Health Bar

I want to add a Health Bar (a progressing Bar) in my Scene.

It's a rectangle bar filled with a color, on the upper left in the Scene, and every second the bar decreases (the filled color). After 2 Objects (SKSpriteNode's) hit each other, it gives you + 5 seconds time.

Thanks to LearnCocos2D and CloakedEddy, I know that I can make the Bar by using simply SKSpriteNode with Color or SKCropNode instead of SKShapeNode.

How should I implement it now at best to decrease itself every second smoothly?

My Code:

....
var progressValue = 200
....

HealthBar = SKSpriteNode(color:SKColor .yellowColor(), size: CGSize(width: progressValue, height: 30))
HealthBar.position = CGPointMake(self.frame.size.width / 3, self.frame.size.height / 1.05)
HealthBar.anchorPoint = CGPointMake(0.0, 0.5)
HealthBar.zPosition = 4
self.addChild(HealthBar)

Upvotes: 2

Views: 4784

Answers (1)

Jerfov2
Jerfov2

Reputation: 5534

What you could do is have a SKSpriteNode be the health bar. Then you have a SKSpriteNode as a frame over the first node. You have an action SKAction.repeatForever(SKAction.sequence([SKAction.moveByX(moveAmount, y: 0, duration: 0.5), SKAction.waitForDuration(0.5)])) and make the health bar (not the frame) run that action. What that will do is move the health bar off the screen, making it look like its going down.

About the collision problem, look at this tutorial. If that doesn't help, maybe you could find others. I want to help with this one, but collision detection is fairly in-depth even with SpriteKit. I hope this helped. Good Luck!

Upvotes: 0

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