Forums » Help » Random spawn positions on entities

Is there any way of making entities spawn at random positions?

This is my code so far.

		var asteroidSettings;
		for (var i = 0; i < 20; i++) {
		asteroidSettings = {vel: {x: 100-Math.random()*200, y: 100-Math.random()*200}};
		this.spawnEntity(EntityAsteroid, ig.system.width/2, ig.system.height/2, asteroidSettings);
		};

Use ig.game.spawnEntity(...) instead of this.spawnEntity(...) unless you are in main.js

Otherwise it looks like it should be working.

var x = Math.random() * 1000; // random x between 0 and 1000
var y = Math.random() * 1000; // random y between 0 and 1000
ig.game.spawnEntity(EntityExample, x, y);

var random = Math.round( Math.random() * <Max_Value> ) + <min_Value>

Also note, the code you provided:

        asteroidSettings = {vel: {x: 100-Math.random()*200, y: 100-Math.random()*200}};

If your random number is less than 100, you will be spawning an entity off the visible drawing area.

So you could use:

        asteroidSettings = {vel: {x: 100- (Math.random()*200)+100, y: (Math.random()*200)+100}};

Which will give you a random number between 100 and 200 (So the lowest possible value is 0)