CODEWITHSUNDEEP
swiftsprite-kit
Lucas Dahl
Lucas Dahl

Reputation: 742

Sprite keeps moving off screen

I am practicing with SpriteKit with simple player movement when the user tilts the device. However I want the player to no be able to go off the screen, but when I try to change the y position to the frame.MaxY(or minY) it just keeps going. The code below is what I call inside the update function.

 if let accelerometerData = motionManager.accelerometerData {
            player.position.y += CGFloat(accelerometerData.acceleration.x * 50)

            if(player.position.y < frame.minY) {
                player.position.y = frame.minY
            } else if(player.position.y > frame.maxY) {
                player.position.y = frame.maxY
            }
        }

Upvotes: 1

Views: 74

Answers (1)

de.
de.

Reputation: 8507

Take the size of the player into account like so (pseudocode)

if let accelerometerData = motionManager.accelerometerData {
            player.position.y += CGFloat(accelerometerData.acceleration.x * 50)

            if (player.position.y < frame.minY) {
                player.position.y = frame.minY    // <- maybe need some adjustment here too
            } else if(player.position.y > frame.maxY - player.size.height) {
                player.position.y = frame.maxY - player.size.height
            }
        }

Upvotes: 2

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