Random Movement

[rvizcaino]

Hi! I have a question, maybe a silly one. I want to apply a random movement to a sprite, I want it to move all over the screen, it's for a power up for a space shooter game. Thanks!

[lewster32]

This is a difficult one to answer as there are many different ways for something to move randomly! A simple implementation would be to use a tween on a timer, something like this:

var powerup = this.game.add.sprite(0, 0, 'powerup');this.game.time.events.loop(2000, function() {  this.game.add.tween(powerup).to({x: this.game.world.randomX, y: this.game.world.randomY}, 1750, Phaser.Easing.Quadratic.InOut, true);}, this)

Be aware that this is a very simplified solution, and will cause errors if the object is removed. It'd be much better to extend the Sprite object and add this as a behaviour that only occurs when it's alive.

[rvizcaino]

Hi Lewster, thanks for answer! This would make item move in straight lines right?

[lewster32]

Yes, the sprites will move in straight lines to random points on the screen. If you want a smoother way of doing this, you could probably randomly tween the body.velocity.x and body.velocity.y values maybe? Like I said, there are lots of ways to do this depending on the type of random movement you want.