Flash制作物体弹跳电脑游戏

Flash制作物体弹跳电脑游戏(2) level[12] = new Array(1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
level[13] = new Array(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
level[14] = new Array(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
for (y=0; y<=14; y++) {
 for (x=0; x<=24; x++) {
  if (level[y][x] != 0) {
   place_brick = lev.attachMovie("block", "block_"+lev.getNextHighestDepth(), lev.getNextHighestDepth(), {_x:x*20+10, _y:y*20+10});
   place_brick.gotoAndStop(level[y][x]);
  }
 }
}
_root.attachMovie("player", "player", _root.getNextHighestDepth(), {_x:40, _y:40});
player.onEnterFrame = function() {
 yspeed += gravity;
 if (yspeed>max_yspeed) {
  yspeed = max_yspeed;
 }
 if (Key.isDown(Key.LEFT)) {
  xspeed = -walk_speed;
 }
 if (Key.isDown(Key.RIGHT)) {
  xspeed = walk_speed;
 }
 while (_root.lev.hitTest(this._x, this._y+this._height/2-1+yspeed, true)) {
  yspeed--;
 }
 while (_root.lev.hitTest(this._x-this._width/2+1+xspeed, this._y, true)) {
  xspeed++;
 }
 while (_root.lev.hitTest(this._x+this._width/2-1+xspeed, this._y, true)) {
  xspeed--;
 }
 this._y += yspeed;
 this._x += xspeed;
 xspeed = 0;
};

　　上面代码实现的效果是会出现一幅不动的背景。效果如下。

　　然后把弹跳的物体放进来。

yspeed = 0;