var JumpPower=0;
stage.addEventListener(Event.ENTER_FRAME , function (e:Event) :void{
character.y -= JumpPower ;
JumpPower -= 1 ; //落下
if( character.y > 260 )
{
character.y = 260 ;
JumpPower = 0 ; //重力を0に
}
if(character.y == 260) {
if(KeyIsDown(Keyboard.SPACE)){
JumpPower = 15 ; //ジャンプ加算
}
}
});