Game 1: Bouncing Ball

///Bounce against walls
​
//Back up ball before collision
x=xprevious;
y=yprevious;
var corner = true;
​
//Bounce for horizontal collision
if(place_meeting(x + hspeed,y,obj_wall))
{
    hspeed = -hspeed;
	corner = false;
}
​
//Bounce for vertical collision
if(place_meeting(x,y + vspeed,obj_wall))
{
    vspeed = -vspeed;
	corner = false;
}
​
//deal with corner case
if (corner == true)
{
	hspeed = -hspeed;
	vspeed = -vspeed;
}
​
​