Flash
init();
function init(){
right = 500;
left = 50;
top=50;
bottom=450;
ball_mc.velX=25;
ball_mc.velY=25;
ball_mc.onEnterFrame=move;
}
function move(){
this._x+=this.velX;
this._y+=this.velY;
if (this._x >= right || this._x<=left)
{
this.velX*=-1;
}
if (this._y >= bottom || this._y<=top)
{
this.velY*=-1;
}
} |