projectile decay example

index.html

@@ -3068,8 +3068,9 @@ function shoot(){
 	shot = setInterval( _ => { 
 		d+=.1; 
 		r.at(d, t); 
+		t.y-=.1*(1+d) // simulating gravity and friction
 		s.setAttribute("position", AFRAME.utils.coordinates.stringify( t )); 
-		if (d>100) clearInterval(shot)
+		if (d>100 || t.y < 0) clearInterval(shot)
 	}, 10)
 }