Flash MX 2004 Games : Art to ActionScript

}
switch (channel){
case 0:
return keys[index].x;
case 1:
return keys[index].y;
case 2:
return keys[index].rotation;
case 3:
return keys[index].scale;
}
return 0;
function SetChannel(name, channel, value){
switch(channel){
case 0:
eval(name)._x = value;
break;
case 1:
eval(name)._y = value;
break;
case 2:
eval(name)._rotation = value;
break;
case 3:
eval(name)._xscale = value;
eval(name)._yscale = value;
break;
}
}
Appendix B
The TCB curves example
Figure B.10 shows ‘Examples\AppendixB\tcbcurves.fla’ in action. In the example you can move,
scale or rotate the key positions using the mouse. For each key position you can set the time,
tension, continuity and bias. The crosshairs give an indication of the curve used to move around
the key positions, and as you can see there is a smooth motion throughout. The crosshairs bunch
up when the section duration is long and appear widely spaced when the section duration is short.
The crosshairs are positioned with a call to the function ‘updateCrossHairs’. This function is called
whenever the user adjusts the curve.
function updateCrossHairs(){
var i, name, interval, time = keys[0].millisecs;
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