https://github.com/brynbellomy/updatetimer

Scene update loop timer for SpriteKit, et al. (in Swift)
https://github.com/brynbellomy/updatetimer

Last synced: 23 days ago
JSON representation

Scene update loop timer for SpriteKit, et al. (in Swift)

• Host: GitHub
• URL: https://github.com/brynbellomy/updatetimer
• Owner: brynbellomy
• License: wtfpl
• Created: 2015-01-11T02:38:22.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-01-11T02:38:31.000Z (almost 10 years ago)
• Last Synced: 2024-10-04T20:37:26.677Z (about 1 month ago)
• Language: Swift
• Homepage:
• Size: 117 KB
• Stars: 5
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        


# UpdateTimer

`UpdateTimer` is a simple `struct` that tracks commonly-needed chronological variables in the scene loop of a game.  It currently exposes:

- Time since last update

- Time since first update

- Total frame count (number of times `update()` has been called)

## lap timer

`UpdateTimer` also includes a lap timer that makes it trivial to track an arbitrary event (i.e., one that doesn't necessarily happen every `update()` cycle).  During your scene loop's `update()` method, `timeSinceLastLap` will be set to the number of seconds since the previous time `lap()` was called (or, if it has never been called, the number of seconds since the first call to `update()`).  Call `lap()` any time the event you're monitoring occurs, and `timeSinceLastLap` will reset to 0 and begin counting up again.

```swift

class MyScene: SKScene

{

    let spawnMonsterInterval: NSTimeInterval = 5

    private var updateTimer = UpdateTimer()

    func update(currentTime:NSTimeInterval) {

        updateTimer.update(currentTime)

        println("seconds since last update() = \(updateTimer.timeSinceLastUpdate)")

        println("seconds since first update() = \(updateTimer.timeSinceFirstUpdate)")

        println("seconds since monster was spawned = \(updateTimer.timeSinceLastLap)")

        println("number of times update() has been called = \(updateTimer.frameCount)")

        

        if updateTimer.timeSinceLastLap >= spawnMonsterInterval {

            spawnMonster()

            updateTimer.lap()           // resets `timeSinceLastLap` to zero

        }

    }

}

```

# authors / contributors

bryn austin bellomy <  >