双色变换在AS3中的应用

Question

简单地说，我想设置几个不同的特定颜色，然后在他们身上涂点颜色。

var color1 = new ColorTransform(); color1.color = 0x0000FF;
var color2 = new ColorTransform(); color2.color = 0x00FF00;
var color3 = new ColorTransform(); color3.color = 0xFFFF00;

thing1.transform.colorTransform = color1;
thing2.transform.colorTransform = color2;
thing3.transform.colorTransform = color3;

thing1.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0);
thing2.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0);
thing3.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0);

不幸的是，颜色转换会重置值。有办法保留第一个颜色变换的值吗？

Answer 1

我找到了解决这个问题的办法。

如果我将对象设置为颜色

var color1 = new ColorTransform(); color1.color = 0x0000FF;
thing1.transform.colorTransform = color1;

然后，我可以编辑蓝色和绿色的值，以便得到我想要的颜色。

color1.blueOffset+=200;
color1.greenOffset+=150;

然后对对象使用颜色转换来设置新颜色。

thing1.transform.colorTransform = color1;

Answer 2

您应该能够使用ColorTransform.concat()函数来完成这个任务。

var color1 = new ColorTransform(); color1.color = 0x0000FF;
var color2 = new ColorTransform(); color2.color = 0x00FF00;
var color3 = new ColorTransform(); color3.color = 0xFFFF00;

color1.concat( new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0) );
color2.concat( new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0) );
color3.concat( new ColorTransform(1, 1, 1, 1, 0, 200, 150, 0) );

thing1.transform.colorTransform = color1;
thing2.transform.colorTransform = color2;
thing3.transform.colorTransform = color3;

它本质上与(使用Math.min将偏移值夹紧到255个)相同：

thing1.transform.colorTransform = new ColorTransform(1*1, 1*1, 1*1, 1*1, Math.min(0x00+0, 0xFF), Math.min(0x00+200, 0xFF), Math.min(0xFF+150, 0xFF), Math.min(0x00+0, 0xFF));
thing2.transform.colorTransform = new ColorTransform(1*1, 1*1, 1*1, 1*1, Math.min(0x00+0, 0xFF), Math.min(0xFF+200, 0xFF), Math.min(0x00+150, 0xFF), Math.min(0x00+0, 0xFF));
thing3.transform.colorTransform = new ColorTransform(1*1, 1*1, 1*1, 1*1, Math.min(0xFF+0, 0xFF), Math.min(0xFF+200, 0xFF), Math.min(0x00+150, 0xFF), Math.min(0x00+0, 0xFF));

或者：

thing1.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0x00, 0xC8, 0xFF, 0x00);
thing2.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0x00, 0xFF, 0x96, 0x00);
thing3.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0xFF, 0xFF, 0x96, 0x00);