JensB

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  1. Hi! So I'm working on a 2D space shooter type of game and am trying to get a parallax background thing going. But I'm having trouble getting the math right. You can see my work in progress here: https://www.youtube.com/watch?v=Pea9yVbTD64 As stated in the video everything works if the players x and y are positive, but breaks when they are negative, and I can't figure out what I am doing wrong. Any help would be greatly appreciated. Or perhaps there is a better way to accomplish this? What I'm doing is randomly generating out a bunch of the Sprites, and then updating their position with this code. _Nebulas: is Array<NebulaParticle> which is listed below as well. p.distance: is a number between 1 and 5 to signify how far away the sprite is and is used to make them move slower when they are furher away. _Width and _Height are both arbitrary numbers to signify how big the area is that the parallax should cover, in the video they are both set to 80. OriginalOffsetX/Y is the original random position the Sprite was given. public update(delta: number, playerx: number, playery: number) { console.log(playerx + ", " + playery ); for (let i = 0; i < this._Nebulas.length; i++) { let p = this._Nebulas[i]; p._Sprite.x = (playerx + (this._Width / 2)) - (((playerx / p.distance) + p.OriginalOffsetX) % this._Width); p._Sprite.y = (playery + (this._Width / 2)) - (((playery / p.distance) + p.OriginalOffsetY) % this._Height); } } class NebulaParticle { public _Sprite: Phaser.GameObjects.Sprite; public OriginalOffsetX: number; public OriginalOffsetY: number; public distance: number; } Thank you very much.