用Flash AS实现画图的详细讲解

　　使用方法：把代码拷到帧中就可看到效果

用鼠标任意画线

效果：可按住鼠标任意画线，可作简单的涂鸭工具

代码：

createEmptyMovieClip("xian",1);
with (xian) {
  _root.onMouseMove = function() {
    if (draw) {
    _root.lineStyle(0,0x000000, 100);
    _root.lineTo(_root._xmouse,_root._ymouse);
    }
  };
  _root.onMouseDown = function() {
  draw = true;
  _root.moveTo(_root._xmouse,_root._ymouse);
  };
  _root.onMouseUp = function() {
  draw = false;
  };
}

　　 用鼠标任意画直线

效果：类似flash中的直线工具

代码：

createEmptyMovieClip("line", n);
with (line) {
  lineStyle(1, 0x000000, 100);
  moveTo(0, 0);
  lineTo(100, 100);
  line._visible = 0;
}
_root.onMouseDown = function() {
  qidian_x = _root._xmouse;
  qidian_y = _root._ymouse;
  with (line) {
    _x = qidian_x;
    _y = qidian_y;
    _xscale = 0;
    _yscale = 0;
    _visible = 1;
  }
};
_root.onMouseMove = function() {
  endX = _root._xmouse;
  endY = _root._ymouse;
  if (_root.line != "_root.line" && key.isdown(16)){
    if (Math.abs(endX-qidian_x)>Math.abs(endY-qidian_y)){
      setProperty(_root.line, _xscale, endX-qidian_x);
      setProperty(_root.line,_yscale, endX-qidian_x);
    } else {
      setProperty(_root.line, _xscale, endY-qidian_y);
      setProperty(_root.line, _yscale, endY-qidian_y);
    }
  } else {
    setProperty(_root.line, _xscale,endX-qidian_x);
    setProperty(_root.line, _yscale,endY-qidian_y);
  }
};
_root.onMouseUp = function() {
  if (_root._xmouse-qidian_x != 0) {
    i++;
    Objectx = "Copy" add i;
    duplicateMovieClip(_root.line, Objectx, i);
    setProperty(Objectx, _x, qidian_x);
    setProperty(Objectx, _y, qidian_y);
    _root.i = i;
  }
  setProperty(_root.line, _visible, 0);
};

　　 用鼠标任意画矩形

效果：类似flash中的矩形工具

代码：

createEmptyMovieClip("line", n);
with (line) {
  lineStyle(0.1, 0x000000, 100);
  moveTo(0, 0);
  lineTo(100, 0);
  lineTo(100, 100);
  lineTo(0, 100);
  lineTo(0,0);
  line._visible = 0;
}
_root.onMouseDown = function() {
  qidian_x = _root._xmouse;
  qidian_y = _root._ymouse;
  with (line) {
    _x = qidian_x;
    _y = qidian_y;
    _xscale = 0;
    _yscale = 0;
     _visible = 1;
  }
};
_root.onMouseMove = function() {
  endX = _root._xmouse;
  endY = _root._ymouse;
  if (_root.line != "_root.line" && key.isdown(16)){
    if (Math.abs(endX-qidian_x)>Math.abs(endY-qidian_y)){
      setProperty(_root.line,_xscale, endX-qidian_x);
      setProperty(_root.line, _yscale, endX-qidian_x);
    } else {
      setProperty(_root.line,_xscale, endY-qidian_y);
      setProperty(_root.line,_yscale, endY-qidian_y);
}
  } else {
      setProperty(_root.line, _xscale,endX-qidian_x);
      setProperty(_root.line, _yscale,endY-qidian_y);
    }
};
_root.onMouseUp = function() {
  if (_root._xmouse-qidian_x != 0) {
    i++;
    Objectx = "Copy" add i;
    duplicateMovieClip(_root.line,Objectx, i);
    setProperty(Objectx, _x, qidian_x);
    setProperty(Objectx, _y, qidian_y);
    _root.i = i;
  }
  setProperty(_root.line, _visible, 0);
};

　　用鼠标任意画圆、椭圆

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