Comparing two vectors

Hello! I’m new to Three.js and would like to create a Dual N’Back style game in 3D. One aspect of the game is pressing a button when the object appears in the same location it did x number of rounds ago and I was just wondering how you could compare the value of two vectors(?) in Three.js. Here is some code I have written so far to state the location of the cube8 object (it’s pretty basic):

		function AnotherFunction() {
		
		
		gsap.to(cube8.position,3, { y: Math.floor(Math.random()*5)});
		gsap.to(cube8.position,3, { z: Math.floor(Math.random()*5)});
              	gsap.to(cube7.position,3, { x: Math.floor(Math.random()*5)});
		gsap.to(cube7.position,3, { y: Math.floor(Math.random()*5)});
		gsap.to(cube7.position,3, { z: Math.floor(Math.random()*5)});
		gsap.to(cube6.position,3, { x: Math.floor(Math.random()*5)});
		gsap.to(cube6.position,3, { y: Math.floor(Math.random()*5)});
		gsap.to(cube6.position,3, { z: Math.floor(Math.random()*5)});
		gsap.to(cube6.position,3, { z: Math.floor(Math.random()*5)});
			
		let Vectorforcube = THREE.Vector3();
		const printlocation = cube8.getWorldPosition(Vectorforcube);			
		console.log(printlocation);

		const r3 = (Math.random()*150);		
		const g3 = (Math.floor(Math.random()*10));
		const b3 = (Math.random());
		materialf.color.setHSL(r3,g3,b3);
		renderer.render(scene, camera);
		}	

Thank you for your help!

Well, you can use Vector3.equals() if you want to check for equality. However, if you need more flexibility because of floating point inaccuracies, you can monkey-path Vector3 with your own equals method like so:

equals( v, epsilon = Number.EPSILON ) {

    return ( ( Math.abs( v.x - this.x ) < epsilon ) && ( Math.abs( v.y - this.y ) < epsilon ) && ( Math.abs( v.z - this.z ) < epsilon ) );

}
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Thanks @Mugen87 - that’s great! I’ll have to try it out this evening.

equals() probably would more often fail than work? Very hard to do math operations and get all three numbers to be exactly the same? It’s a good idea to check most floats with an epsilon, not just the vector.