do you have some advice on this snippet ?

[espace]

hi,

i think that this snippet work good but it's interesting if you you could give me some advice or optimization that I would not have thought at the base

the principle is an object (sprite1) who is falling and some other object (table) slow down his fall.

https://jsfiddle.net/espace3d/a13v8r8b/

thanks

var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload,create: create, update: update, render: render });

var table
var sprite1

function preload() {
   game.load.image('circle', 'https://s13.postimg.org/xjhlzmiev/disc_png.png');
   game.load.image('rect', 'http://s10.postimg.org/6fa6mgrd5/motif.jpg');
}

function create() { 
game.physics.startSystem(Phaser.Physics.ARCADE);

        sprite1=game.add.sprite(400, 300, 'rect');
   	sprite1.anchor.x=.5
  	sprite1.anchor.y=.5
   	sprite1.width=100
   	sprite1.height=100
   	sprite1.alpha=1

game.physics.enable(sprite1, Phaser.Physics.ARCADE);

table=[]
for (var j=0; j < 10 ;j++) {
    table[j] = game.add.sprite(0, 0, 'rect')
    table[j].width = 400
    table[j].height = 1
    table[j].x = 200
    table[j].y = game.rnd.between(400,500)
    game.physics.enable(table[j], Phaser.Physics.ARCADE);
    table[j].body.immovable = true;
}
}

function update() {
    sprite1.body.velocity.y = 100
		for (var j=0; j < table.length ;j++) {
			game.physics.arcade.collide(sprite1, 				table[j],collision,null,this);
		}
}

function collision(obj1,obj2){
game.time.events.add(150,() => destroyTable(obj2),this)
}

function destroyTable(obj2){
obj2.body.enable=false
obj2.visible=false
}


function render() {
}

 

[drhayes]

You could stick the tables you create in a group then check collision against that group instead. It's still basically a for-loop under the covers, but then you get other convenience methods like getFirstAlive, etc.

[espace]

hi drhayes,

i folllow your advice and start this but it seems that the group is undefined and the collision don't work...if i have time i search a little more about this

https://jsfiddle.net/espace3d/avmy0qto/